CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
MOBILIZATION
A. Description
Section 150 of the Michigan Department of Transportation 2012 Standard Specifications for
Construction is hereby deleted and replaced with the following: This item shall consist of
preparatory work and operations, including, but not limited to the following:
1.
2.
3.
4.
5.
The movement of personnel, equipment, supplies, and incidentals to the project
site.
The establishment of the Contractor's offices, buildings, and other facilities to
work on the project.
Other work and operations that must be performed.
Expenses incurred, prior to beginning work on the various contract items on the
project site.
Pre­construction costs, exclusive of bidding costs, which are necessary direct
costs to the project rather than directly attributable to other pay items under the
contract.
B. Measure and Payment
The completed work as measured for MOBILIZATION will be paid for at the contract unit price
for the following contract item (pay item).
Pay Item
Pay Unit
Mobilization, Max
LS
Mobilization will be measured as a lump sum. The pay item will state the maximum amount
that can be bid. When the percentage of the original contract amount earned is less than 5
percent, the costs of project specific bonding, insurances and permits will be reimbursed when
a paid invoice is received by the Engineer. The costs of these will then be subtracted from the
total amount bid for Mobilization. Partial payments will be made in accordance with the
Partial Payment Schedule shown below. The original contract amount is the total value of all
contract items including the mobilization item. The percentage earned is exclusive of the
mobilization item.
The total sum of all payments for this item shall not exceed the original contract amount bid for
Mobilization, regardless of the fact that the Contractor may have, for any reason, shut down
his work on the project, moved equipment away from the project and then back again, or for
additional quantities or items of work added to the contract. Nothing herein shall be construed
to limit or preclude partial payments otherwise provided by the contract.
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Partial Payment Schedule
Percentage of Original
Percentage of Bid Price
Contract Amount Earned
for Mobilization Allowed
5................................................................50
10..............................................................75
25............................................................100
When a pay item for mobilization is not included in the request for proposal, payment for any
such work required is considered to have been included in payments made for other items of
work.
7­2
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
MINOR TRAFFIC DEVICES
A. General Description
This section is added to provide modification to section 812 of the Michigan Department of
Transportation 2012 Standard Specifications for Construction for the work required for Minor
Traffic Devices, Plastic Drums, Type III Barricades, and Temporary Signing.
B. Minor Traffic Control Devices
Minor Traffic Control Devices shall be measured as a lump sum. The work of Minor Traffic
Control Devices shall include the furnishing, installing, maintaining, moving, and removing of
all Plastic Drums, High Intensity, Lighted. Minor Traffic Control Traffic Devices shall be placed
in locations as required and as directed by the Engineer. It is anticipated that a maximum of
__ Plastic Drums, high intensity, lighted, are required. The payment for Minor Traffic Control
Devices shall be payment in full for all plant, equipment, materials and labor required for
completion of the item as specified in Standard Specifications. Removal of damaged traffic
control devices shall be included in this cost.
Pay Item
Pay Unit
Minor Traffic Devices
7­3
LS
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
UTILITY TRENCH BACKFILL
A. Description
This work shall consist of backfilling trenches where called for on the plans with a porous
bedding material in accordance with the typical trench sections shown on Standard Plan R­
83­B Series.
B. Material
The porous materials for backfilling utility trenches shall be Granular Material Class IIA and
shall meet the requirements specified in Subsection 902.08 of the 2012 Standard
Specifications. See table 902­3 “Grading Requirements for Granular Materials (2012)" of the
2012 Standard Specifications for sieve analysis details.
C. Construction Methods
Backfill material shall be placed on sections of the utility only after such sections have been
approved by the Engineer for backfilling. Backfill material shall be placed in layers not to
exceed 12 inch in thickness unless the Contractor can demonstrate to the satisfaction of the
engineer that he can consistently attain the specified density on thicker lifts.
Unless otherwise shown or specified in the Contract, compaction of all backfill material shall
be by mechanical pneumatic or vibratory compaction equipment. Ponding and jetting
methods will not be permitted, except by written permission of the City Engineer
Backfill for the utility within the limits of the roadbed as shown on the plans or as directed by
the Engineer shall be Granular Material as shown on the plans and shall be compacted to 95
percent of maximum unit weight.
Backfill for the utility outside the limits of the roadbed shall be the material excavated from
the utility trench, unless otherwise specified. Sound earth, free from large stones and lumps,
shall be carefully placed under and around the pipe in layers. Each layer shall be
thoroughly compacted without displacing the sections, until the sewer is completely covered
to a depth of at least 12 inch. The balance of the backfill shall be placed in layers and each
layer thoroughly compacted by hand tamping or by approved mechanical methods. Any
backfill material placed within 12 inch of the pipe shall not contain stones larger than 2 inch
size.
D. Measurement and Payment
The completed work as measured for UTILITY TRENCH BACKFILL will not be paid for separately.
Payment for such work will be considered as having been included in the contract unit
prices bid for pay items in the contract.
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END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
DISPOSAL OF SURPLUS AND UNSUITABLE MATERIAL
A. General
The Contractor shall dispose of surplus and unsuitable material outside of the right­of­way of
the Project area. The Contractor shall obtain and file with the Engineer, written permission
from the owner of the property on which the material is to be placed. Surplus and unsuitable
materials shall not be disposed of in any areas defined as wetlands or flood plains without
obtaining permits from the regulatory agencies having jurisdiction over such land use. The
Contractor shall be responsible for and obtain any necessary permits pertaining to
compliance with the Soil Erosion and Sedimentation Control Act, for disposal areas. Cost of
obtaining any permits relating to disposal sites shall be included in the unit bid price for Peat
Excavation, Section 205 of the 2012 Standard Specifications.
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END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
TOPSOIL SURFACE, 4 INCH
A. General
Section 816 of the MDOT 2012 Standard Specifications shall be supplemented herein to
further define the requirements for topsoil surface to be furnished and placed on the areas
designated for turf establishment within the C.I.A. (Construction Influence Area).
B. Specification for Topsoil
Topsoil shall consist of friable soil, capable of generating acceptable plant growth,
reasonably free of grass, roots, weeds, sticks, stones or other foreign materials. The topsoil
material proposed for the project shall be approved by the Engineer prior to placement.
Topsoil shall be placed 4 inches thick compacted in place. The United States Department of
Agriculture (U.S.D.A.) specification requirements for acceptable topsoil as applied in the
Marquette area shall apply. Soil composition should contain an organic content of 2 to 6
percent and be classified as a loam or sandy loam as specified by the "Guide for U.S.D.A. Soil
Textural Classification".
C. Construction Methods
It is expected that the Contractor will have to supplement the existing surface soil
encountered on the project. The Contractor shall stockpile the surface soil stripped from the
C.I.A. for future reuse. The Engineer will review the material for its suitability as approved
topsoil.
If topsoil material is required to supplement that salvaged from the C.I.A. or if insufficient
topsoil is salvageable from the site the Contractor shall furnish material approved by the
Engineer.
D. Topsoil Source Approval
The contractor shall furnish proposed topsoil material sources at the preconstruction
conference for review by the Engineer. The sources will be reviewed by the Engineer for
acceptability of use on the project for the turf growing application proposed.
The Contractor is responsible for researching and acquiring rights to topsoil sources and the
furnishing, hauling, and placement of the topsoil.
E. Method of Measurement and Payment
Payment shall be made at the contract unit price per cubic yard for topsoil material
required. The contract unit price will be payment in full for hauling, placing and compacting
7­6
of the material at the locations required.
Pay Item
Topsoil Surface, 4 Inch
7­7
Pay Unit
Cyd
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
BORROW MATERIAL (WATER MAIN TRENCHES)
A. General
Under most phases of the work, earth excavated from the trench will be used for backfill.
However, unstable materials such as peat or other organics, materials which contain large
amounts of refuse, broken pavement, boulders, roots, stumps, or other debris, shall not be
incorporated into the backfill.
B. Construction
When excavated material is determined by the Engineer to be unsuitable for backfilling, the
Contractor shall bring in borrow material and dispose of the unsuitable material off­site.
C. Materials
Borrow material shall meet the requirements of the "Michigan Department of Transportation
Granular Material Class IIIA" as specified in Section 902.08 of the Michigan Dept. of
Transportation's 2012 Standard Specification for Constructions.
D. Method of Measurement and Payment
Payment shall be made at the contract unit price per cubic yard (loose measure) for borrow
material required. The contract unit price will be payment in full for hauling, placing and
compacting of the material at the locations required. Any soils hauled away from the site
because of poor soil conditions will be considered incidental to the contract unit price for
borrow.
No payment for this item will be made when roadway excavation items are to be utilized in
the trench limits.
Pay Item
Pay Unit
Borrow Material
Cyd
END OF SECTION
7­8
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
BITUMINOUS MIXTURES
A. Description
This work shall consist of furnishing and placing bituminous base and surface course mixtures
in accordance with the 2012 MDOT Standard Specifications, as applicable.
B. Aggregate
The aggregate used in the bituminous mixture shall meet the gradation and physical
requirements specified in the 2012 Standard Specifications.
C. Construction Requirements
Surface preparation. Immediately prior to applying the paving mixture the surface shall be
thoroughly cleaned of all vegetation, loose materials, dirt, mud, and other objectionable
materials. All standing water shall be removed prior to applying the paving mixture.
The Contractor will ensure that manhole, drainage structure, and water valve covers located
in areas within the finished asphalt or concrete surface are ¼ inch below the finished paved
surface. Covers out of ¼ inch tolerance (plus or minus ¼ inch) will be adjusted during or after
the paving operations at the Contractor’s expense. No “dishing” of the asphalt will be
allowed around the structure covers on the finished paved surface
The seam where two passes join shall be neat appearing and uniform. If, in the opinion of the
Engineer, the seam is irregular, rough or elevated above the adjacent matt surface, the
seam area will be repaired by the Contractor at the Contractor’ s expense. If, in the opinion
of the Engineer, the seam is not tight and uniform in appearance the seam will be repaired
by the Contractor at the Contractor’s expense.
All longitudinal joints shall be tapered overlapping longitudinal joints in lieu of a
longitudinal vertical joint. The requirement that all lanes be resurfaced to within one load
of the same point­of­ending at the completion of each day’s paving operations does not
apply when a tapered overlapping longitudinal joint is used.
Construct the tapered overlapping longitudinal joint by tapering the HMA mat at a slope
no greater than 1:12 and extend the tapered portion beyond the normal lane width.
Place a 0.5 to 1 inch notch at the top of the taper on all courses of paving.
Construct the tapered portion of the mat using an approved strike­off device that will
provide a uniform slope and will not restrict the main screed. Pave the adjacent lane
within 24 hours, unless delayed by inclement weather. Apply bond coat to the surface of
the taper before the adjacent lane is placed.
7­9
Final density requirements for the entire pavement, including the taper area, will remain
unchanged. Compact the initial taper section as near to final density as possible. Apply a
weighted roller, as wide as the taper, to the taper section of the pavement.
All excess material that overruns in gutters shall be removed or squeegeed back as directed
by the Engineer.
All excess material shall be removed from the ends of the job site immediately.
When needed, all joints, radii, ends and returns will be squeegeed to a uniform appearance
as directed by the Engineer.
All material tracked or lost past the ends of the job site shall be cleaned up before the
paving crew leaves for the next location.
D. Traffic Control
The Contractor shall provide signs, barricades and flaggers necessary to control traffic
around the area under construction. Application of the mixture shall be suspended early
enough each day to permit traffic to safely travel over the completed work before dark. Any
damage done by traffic to the asphalt surface shall be repaired by the Contractor at the
Contractor's expense. Barricades, signs and other warning devices will be in accordance
with the 2011 Michigan Manual on Uniform Traffic Control Device. A written traffic control
plan or schematic shall be provided by the Contractor for the Engineer's approval prior to
beginning the work. All materials, labor, equipment and appurtenances required for the
control of traffic for asphalt placement shall be considered incidental to the asphalt
placement unless otherwise noted in the plans or these specifications.
E. Thickness Tolerance
A depth tolerance not to exceed ¼ inch from the nominal thickness required (per plan) for
the course specified under one pay item will be acceptable where the required nominal
thickness is 2 inches or less. A tolerance not to exceed ½ inch from the nominal thickness
required for the course or courses specified under one pay item will be acceptable where
the required nominal thickness is equal to or over 2 ½ inches.
Measurement will be based on the weight of the HMA and planimetric area of the paving
limits.
F. Notification Requirements
The Contractor will make every effort to notify the property owner’s and/or tenants the day
prior to placement of the HMA top course in the area under consideration. The Contractor
will make every effort to contact the said property owner’s and/or tenants 24 hours prior to
the placement of the HMA either by verbal, written communication, or a combination of
both. “Police Order No Parking Signs” may be borrowed from the City of Marquette Public
Works Department to further expedite and reinforce the temporary parking and street usage
ban. All signage will be returned to promptly to the Public Works Department following the
removal of the signage from the street area. Failure to do so will result in the Contractor
being prohibited from further borrowing transactions.
7­10
G. Ride Quality Requirements (Cold Mill and Overlay, Crush & Shape and New Construction)
The Contractor will perform all ride quality measurements. On cold mill and overlay projects
this will include measurements on the original and final pavement surfaces. On crush &
shape and new construction ride quality measurements are required on the final surface.
The cost of performing these ride quality measurements will be included in the cost of other
contract items and will not be paid for separately. These ride quality requirements must be
met for the initial acceptance of warranted HMA pavement.
The profiler to be used must be GM type rapid travel profiler, as stated in MTM 726­ Michigan
Test Method for Determining Ride Quality Using a GM Type Rapid Travel Profilometer.
The pavement ride quality, for each warranty lane, must meet the following criteria
subsequent to the HMA overlay,
1. Each individual 264 foot segment of each lane must have an IRI value equal to or lower
than the initial value prior to the overlay.
2. For cold mill and overlay projects the overall average for each lane must be improved
by 30 percent from the initial IRI value. For crush & shape and new construction projects
the IRI must be equal to or less than 100.
a. Excluded Areas
i. Areas surrounding manholes and utility and drainage structures will be
designated at excluded areas. The excluded area will extend 10 feet on
each side of the structure.
ii. Areas where the new pavement must match grades of an existing feature
(e.g. curb and gutter or an existing lane that will not be overlaid).
iii. Major intersections (where traffic flow is maintained during construction). The
excluded area will extend between the approach and the departure spring
points of the intersection.
iv. Existing defects in the pavement remaining (e.g. existing pot hole areas) after
cold milling.
b.
The excluded areas will be identified in writing to the Engineer prior to
measurement.
3. If corrective action is required repairs shall be made at the Contractors expense. This
corrective action includes bump grinding by an approved method, mill and replace
HMA pavement or other approved method. The Contractor will analyze the ride quality
data and determine the area or areas needing correction. After corrective work the
7­11
Contractor shall again perform ride quality measurements. If ride quality criteria are not
met additional corrective work and measurement may be required.
4. Condition Parameters:
Condition parameters are used to measure the performance of the HMA pavement
during the warranty term. Each condition parameter has a threshold level applied to
each segment and a maximum number of defective segments allowed before
corrective action (warranty work) is required.
Definitions:
Longitudinal Crack/Open Joint ­ A crack or open joint, at least five feet in length that is
oriented primarily in the longitudinal direction versus the transverse direction. That is, the
angle between the overall crack line and the centerline is less than 45 degrees. It can exist
anywhere in the warranty lane; i.e., at the pavement centerline joint, wheel path, center of
lane, lane/shoulder joint, or lane/approach joint. This does not include reflective cracking
from underlying pavement.
De­bonding ­ A physical separation of two HMA layers. De­bonding will be visually
identified as shoving, or the loss of the new surface course. Surface potholes, regardless of
depth, will be classified as de­bonding.
Raveling ­ Surface disintegration, due to the loss of coarse or fine aggregate material, that
occurs over an area or in a continuous longitudinal strip.
Flushing ­ The accumulation of excess asphalt binder on the pavement surface that
creates a
shiny, reflective condition and becomes tacky to the touch at high
temperatures.
Rutting ­ A longitudinal surface depression in the wheel path. It may have associated
transverse displacement or humping.
5. Warranty Requirements. Table 1 lists the allowable threshold limit for each condition
parameter within each segment and the maximum number of allowable segments within
a warranty lane for each condition parameter. If the threshold is exceeded for a condition
parameter, for more than the maximum number of allowable segments, corrective action
(warranty work) is required.
The defective segments for surface distress may or may not be contiguous to necessitate
corrective action. The maximum allowable number of defective segments for each
condition parameter applies to each warranty lane in each travel direction. Each
warranty lane shall be evaluated independent of adjacent warranty lanes. Any pavement
surface requiring removal/replacement to correct deficiencies, for any condition
parameter, shall be replaced full­width across the warranty lane.
6. Operational Time Period. Per the act of the City Commission, the time period between the
milling and paving operations will be at a maximum of three weeks. This will allow ample
time to adjust structures, repair curbing, and repair subbase if required. This requirement
7­12
will minimize the disruption to the public and minimize the potential for physical injury or
vehicular damage. Failure to meet this requirement will result in liquidated damages for
every day that exceeds the three week period.
TABLE 1 ­ WARRANTY REQUIREMENTS FOR COLD MILLING & ONE COURSE HMA OVERLAY
CONDITION PARAMETER
THRESHOLD LIMITS PER SEGMENT
(Segment Length = 60 feet)
Longitudinal Cracking/ Open Joint
5% of segment length
De­bonding
5% of segment length
Raveling
Flushing
Rutting (3)
5% of segment length
5% of segment length
Ave. rut depth = 1/4 inch (2)
2. The rut depth threshold applies to each wheel path independently.
3. The pavement surface will be evaluated for the presence of rutting on each warranty lane
throughout the warranty period. The pavement surface will be measured beginning at the
POB and every 20 feet thereafter to determine average rut depth to quantify rutting for a
particular segment.
Rut measurements will be done using a straight rigid device that is a minimum of 7 feet long
and of sufficient stiffness that it will not deflect from its own weight, or a wire under sufficient
tension to prevent sag when extended 7 feet. Measurements will be taken by placing this
“straightedge” across the pavement surface perpendicular to the direction of travel. The
straightedge shall contact the surface on at least two bearing points with one located on
either side of the rut. The straightedge is properly located when sliding the straightedge along
its axis does not change the location of the contact points. Rut depth is then measured at the
point greatest perpendicular distance from the bottom of the straightedge to the bottom of
the rut.
Pay Item
HMA, 5E1
HMA, 4E1
HMA, LVSP
END OF SECTION
7­13
Pay Unit
Ton
Ton
Ton
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
REMOVING PAVEMENT
A. General
The 2012 MDOT Standard Specifications for construction is hereby modified to include
removal of all bituminous pavements on this project regardless of thickness. Removal will be
paid as “Earth Excavation” unless otherwise indicated on the plans.
7­14
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
ELECTRICAL STREET LIGHTING, CONDUITS,
CONDUCTORS AND MISCELLANEOUS RELATED ITEMS
A. General
The work required for street lighting includes furnishing and placement of street light poles
and fixtures approved by the Engineer, and furnishing and placing all other items of work
included herein. The work includes street lights, street light bases, handholes, conduit,
conductors, a pole mounted master control center, associated conductor connections, and
all miscellaneous associated items required for the installation complete as detailed on the
plans and in the specifications.
All materials used shall bear the "UL" label, and shall be installed in strict accordance with
the National Electrical Code, latest edition.
B. Materials
1. Conduits
Electrical conduit for street lighting shall consist of one (2 inch) schedule 40 PVC
conduit, NEMA TC 2 or equal, approved by the City of Marquette Board of Light
and Power. All 90 degree bends in conduit runs shall be rigid steel conduit.
2. Handholes
Handholes shall be cast iron conforming with the design and dimensions as shown
on the plans. Conduit knockouts shall be provided as required by the street
lighting plan sheet drawings. Contractor shall provide suitable covers for any
knockouts used.
Handhole covers shall be heavy duty, and shall be marked as specified by the
City of Marquette Board of Light and Power. The Contractor shall review the
required markings with the Board of Light and Power and the Engineer, and make
shop drawing submittals prior to making final orders for materials for the frames
and covers.
3. Street Lights ­ Poles and Luminaries
Street lights shall be installed as detailed on the plans and as specified herein.
The pole material shall be of ASTM grade steel construction for the base, and
steel construction for the pole shaft and shall be as detailed on the drawings.
Light fixture poles shall be mounted 36 inches from the back of the curb to the
7­15
face of the pole. Finishing painting of poles shall be by the Contractor after
shipment, with color matching existing street lighting poles installed in Downtown
Marquette.
The luminaire shall consist of two main components:
a. the optical assembly and,
b. the mechanical/electrical assembly.
The luminaire shall be U.L. listed as suitable for wet locations at 40 degrees Celsius.
Contractor shall provide 2 complete poles and fixture assemblies in addition to
quantity indicated on drawings. The Contractor shall also furnish 2 additional
optical (glass) reflector/refractors, and 2 additional ballast assemblies.
4. Street Light Bases
Street light bases shall be furnished and installed as detailed on the plans and as
specified herein. The installation of rebar is incidental to the item of work.
5. Conductors
Street light conductors shall be furnished and installed as detailed on the plans
and as specified herein.
6. Branch Circuit Panelboards
a. Lighting and Appliance Branch Circuit Panelboards: NEMA PBl; circuit
breaker type.
b. Enclosure: NEMA PB 1; Type 1.
c. Cabinet Size: 6 inch deep; 14 inch wide or larger if required to fit all
components inside.
a. Provide flush surface cabinet front with concealed trim clamps, concealed
hinge and finish lock all keyed alike. Finish in manufacturer's standard grey
enamel.
b. Provide panelboards with copper bus, ratings as scheduled on drawings.
Provide copper ground bus in all panelboards.
c. Minimum Integrated Short Circuit Rating: 10,000 amperes rms symmetrical
for 240 volt panelboards. 14,000 amperes rms symmetrical for 480 volt
panel boards.
d. Molded Case Circuit Breakers: NEMA AB 1 FS W­C­375; bolt­on type
thermal magnetic trip circuit breakers, with common trip handle for all
poles. Provide circuit breakers UL listed as Type SWD for lighting circuits.
7­16
i.
Install panelboards plumb, finishes in conformance with NEMA PB 1.1.
j.
Provide filler plates for unused spaces in panelboards.
k. Provide typed circuit directory for each branch circuit panelboard.
l.
Visual and Mechanical Inspection: Inspect for physical damage, proper
alignment, anchorage, and grounding. Check proper installation and
tightness of connections for circuit breakers.
m. Provide 2 sets of keys to Owner.
n. Submit shop drawings for equipment and component devices.
o. Include outline and support point dimensions, voltage, main bus ampacity,
integrated short circuit ampere rating, circuit breaker arrangement and
sizes.
C. Construction Methods
1. General
Within five days after completion of the conduit work, or of any portion where a
working cable is installed, the Contractor shall furnish to the Engineer a record of
the length of the conduit lines as constructed, clearly showing any departures from
the original plans. The lengths shall be measured from the inside walls of
handholes and the center of pole bases, and cable poles.
2. Conduit Installation
Conduit grades shall be staked at fifty foot intervals or less. Excavation below the
bottom line of the trench shall be filled with Granular Material ­ Class II(free of
stones), and tamped in place. Grade shall have a fall to the lowest handhole, or
from the middle toward both holes, of not less than four (4) percent.
Conduit runs shall be built in as straight a line as possible. Where sweeps are
necessary, the radius of the sweep shall be as great as practicable.
Unless otherwise specified on the plans, the radii of conduit bends shall not be less
than the following:
Minimum Size of Conduit
Cable Without Lead
Sheath
mm
38
50
63
75
Inches
1 ­ 1/2
2
2 ­ 1/2
3
Radii of Conduit Bends
Cable With Lead
Sheath
mm
250
300
375
450
7­17
Inches
10
12
15
18
mm
400
525
625
775
Inches
16
21
25
31
88
100
3 ­ 1/2
4
525
600
21
24
900
1000
36
40
The conduit trench shall be excavated to a depth sufficient to provide a minimum
of 24 inches (unless otherwise specified) of earth cover over the finished conduit
run. Typical depth and widths of excavations will be shown on the plans. The
trench shall be graded to the handhole location so that the finished conduit runs
will contain no pockets where water might accumulate, but will drain into a
handhole. Backfill for trenches outside the roadbed shall be the material
excavated therefrom unless it is unsuitable for backfill material as determined by
the Engineer. If unsuitable, the trenches shall be backfilled with Granular Material ­
Class II. Backfill for trenches within the limits of the roadbed shall be granular
material. Backfilling shall be as specified under the Standard Specifications.
After the conduit runs are built, the Contractor shall pull a mandrel 12 inch long
(shorter in conduit runs with bends) and ½ inch smaller diameter than the conduit,
and a suitable swab or cleaning device designed to clear the conduit of small
pebbles, etc. The Contractor shall notify the Engineer prior to performing this phase
of the work so that the work may be observed. A coupling shall be placed on the
ends of all conduit terminations, and plugged with a suitable removable plug.
3. Handholes
Handholes shall be furnished and installed by the contractor as shown on the
plans. Where a hand hole is associated with a light standard, it shall be
accurately located with respect to the light standard. The handhole shall be
placed on a 15 inch layer of Granular Material ­ Class II unless otherwise specified
on the plans. Heavy duty handholes shall be set on a concrete slab of the
dimensions shown on the plans and open in the center for drainage and be
designed for H­20 Loading.
Unused conduit entrance holes, and conduit openings to be extended by others,
shall be blanked off to prevent entrance of earth with suitable removable plugs of
plastic, bituminized fiber, or other material approved by the Engineer.
4. Street Lights
Street lights shall be installed by the Contractor as detailed on the plans and as
specified herein.
5. Street Light Bases
Street light bases shall be furnished and installed by the contractor as detailed on
the plans and as specified herein.
6. Conductors
Conductors shall be furnished and installed by the Contractor as detailed on the
plans and as specified herein.
7­18
7. Panelboards and Miscellaneous Hardware required for all connections of the
conductors, mounting equipment, labeling, tagging, miscellaneous fittings for
equipment and other miscellaneous items shall be furnished and installed by the
contractor as detailed on the plans and as specified herein.
8. Electrical Identification
Provide engraved, three layer laminated plastic, white letters on black
background min. 6mm height, nameplates for all panelboards. Install
nameplates parallel to equipment lines. Secure nameplates using screws, rivets or
adhesive. Provide wire markers, split sleeve or tubing type, on each conductor in
panelboard gutters, handholes, and at load connection identifying panelboard
and circuit number. Also, provide color coded tape as specified on the drawings
at panelboards, handholes, and load connections.
D. Measurement and Payment
"Conduit" of the number, size and type specified, will be measured in place by length in
lineal feet of conduit placed, and will be paid for at the contract unit price per lineal foot,
which price shall be payment in full for furnishing the labor, materials and equipment,
including excavation, backfilling, disposing of excess materials, and installing the conduit
complete. Pavement, sidewalk, and/or curb and gutter removal and replacement, if
required as determined by the Engineer or as shown on the plans, will be paid for separately.
"Conduit Jacked in Place". A conduit of size and type specified will be paid for at the
contract unit price per lineal foot, which price shall be payment in full for furnishing the
conduit, filling voids, and disposing of surplus materials, and installing the item complete as
called for on the plans.
"Handholes" will be measured as units and will be paid for at the contract unit price each,
which price shall be payment in full for furnishing the labor, materials and equipment,
including covers and fittings, excavations, backfilling, disposing of surplus materials and
constructing the structure complete. Pavement, sidewalk and/or curb and gutter removal
and replacement, if required as determined by the Engineer or as shown on the plans, will be
paid for separately.
"Adjusting Electrical Handhole" will be measured as units and will be paid for in accordance
with the Standard Specifications. All materials for this item are included except that
pavement, sidewalk, and/or curb and gutter replacement, if required as determined by the
Engineer or as shown on the plans, will be paid for separately.
"Removing Manhole or Handhole" will be measured as a unit, and will be paid for in
accordance with the Standard Specifications. Backfilling with Granular Material Class II is to
be included. Pavement, sidewalk, and/or curb and gutter removal and replacement, if
required as determined by the Engineer or as shown on the plans, will be paid for separately.
"Conduit Riser" or "Service Masts" shall be measured and paid for at the contract unit price,
which price shall be payment in full for furnishing and installing the weatherhead, conduit,
7­19
bushing, fittings, ground rods, and stress cones as required to provide a riser complete and
acceptable to the utility supplying power.
"Replacing Frame and Cover and Adjusting Handhole" shall be measured as a unit. The
contract unit price each shall be payment in full for all materials and labor required to adjust
a new handhole frame and cover to the required grade in accordance with the Standard
Specifications, and as shown on the plans. Pavement, sidewalk, and/or curb and gutter
replacement, if required as determined by the Engineer or as shown on the plans, will be
paid for separately.
"Street Light Placement" shall be measured as a unit. The contract unit price each shall be
payment in full for all materials and labor required to place a new street light pole, wiring in
the pole, festoon if required, and miscellaneous appurtenances in the locations as detailed
on the plans and as specified herein.
"Street Light Furnished" shall be measured as a unit. The contract unit price each shall be
payment in full for all new street light pole materials and miscellaneous appurtenances
which will be provided to the Marquette Board of Light and Power.
"Salvaged Street Light Placement" shall be measured as a unit. The contract unit price each
shall be payment in full for all materials and labor required to place the salvaged street light
pole, wiring in the pole, and miscellaneous appurtenances in the locations as detailed on
the plans and as specified herein.
"Street Light Bases" shall be measured as a unit. The contract unit price each shall be
payment in full for all materials, steel rebar, and labor required to furnish and install new light
pole bases as detailed on the plans and as specified herein.
"Street Light Luminaire Placement" shall be measured as a unit. The contract unit price each
shall be payment in full for all materials and labor required to place a new street light
luminaire, wiring connections, and miscellaneous appurtenances in the locations as detailed
on the plans and as specified herein.
"Street Light Luminaire Furnished" shall be measured as a unit. The contract unit price each
shall be payment in full for all new street light luminaire materials and miscellaneous
appurtenances which will be provided to the Marquette Board of Light and Power.
"Salvaged Street Light Luminaire Placement" shall be measured as a unit. The contract unit
price each shall be payment in full for all materials and labor required to place the salvaged
street light luminaire and miscellaneous appurtenances in the locations as detailed on the
plans and as specified herein.
"Conductors" of the number, size and type specified will be measured in place by length in
lineal feet of conduit placed, and will be paid for at the contract unit price per lineal foot,
which price shall be payment in full for furnishing the labor, materials, and equipment,
including excavation, backfilling, disposing of excess materials, and installing the conductors
complete.
7­20
“Lighting Control Panel”, shall be measured and paid by each or as a lump sum item.
Payment for these items shall be payment in full for furnishing the labor, materials and
equipment necessary for construction of all control panels, steel arch frames and
miscellaneous equipment and hardware required for all connections of the conductors,
mounting equipment, labeling, tagging, miscellaneous fittings for equipment and other
miscellaneous items required as detailed on the plans and as specified herein.
Pay Item
Pay Unit
St. Ltg cables, 4­C#4 & 1­#6 Neutral
Lighting Control Panel
Light Standard Shaft, Install
Light Standard Shaft, Furnish
Luminaire Metal Halide, Install
Luminaire Metal Halide, Furnish
Handholes, Heavy Duty cover
Conduit, Schedule 40 PVC, 2 Inch
Conduit, Schedule 40 PVC, 4 Inch
Foot
Each
Each
Each
Each
Each
Each
Foot
Foot
END OF SECTION
7­21
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
LANDSCAPING ITEMS
A. General
This work includes constructing the items included in this specification at the locations
indicated on the plans as indicated herein. This work will be done in accordance with
Section 815 of the 2012 MDOT Standard Specifications for Construction with the omission of
815.03.J in its entirety and as herein specified.
Landscaping items included in this contract, such as Topsoil, Seed and Sodding shall be
constructed in accordance with Michigan Department of Transportation 2012 Standard
Specifications for Construction.
B. Materials
1. Tree Grates and Guards
a. Grates shall be Neenah Model 8742­C radial patter in two sections or
approved equal. Grates will be furnished from the factory with two
coats of “Black Satin”, Corrosion­Resistant Primer for the prime coat and
two coats of “Black Satin”, Corrosion­Resistant Primer for the finish coat.
b. Guards will be hot rolled steel per the details on the plans and
primed/painted black.
2. Irrigation Casing Piping
a. Schedule 80 PVC pipe in the diameter indicated.
3. Irrigation Piping:
a. Polyethylene piping rated at 100 psi in sizes as submitted and approved by
4. Underground Concrete Tree Frame shall be in accordance with the detail on
the plans.
5. Sprinkler heads, valves and control systems will be as submitted and approved
by the City Engineer.
6. Trees and shrubs will be as per the size and type indicated on the plans.
7. Plants will be as per the size and type indicated on the plans.
Plants will be available from the Marquette County Conservation District
sometime between early and mid­September for $0.65/each. This is a special
rate made available to the City of Marquette.
7­22
The plants should/will be 3­4 months old and 2"­6" tall. Contact person is Sarah
Janda, 226­2461, Marquette County Conservation District,
780 Commerce Drive, Marquette, MI.
8. Meter Pit for the irrigation system will be the size and type indicated on the
plans and details.
C. Construction Methods
The Contractor shall prevent injury to healthy and live shrubs and trees on the project that are
not required to be removed. Overhead branches shall be pruned and/or tied back for
construction, as directed by the Engineer.
Place irrigation casing piping 2.0 ft. below finished grade extended 24” beyond the
curb/walk/paving, as indicated on the included drawing. These sleeves shall be placed
between successive landscaping areas, as indicated on the plans.
Irrigation piping of the size and type indicated shall be placed as indicated on the plans or
as submitted by a licensed landscape engineer and approved by the City Engineer.
D. Methods of Measurement and Payment
The work of installing the landscape items shall be measured and paid using the following
items:
Pay Item
Pay Unit
Tree Grate and Concrete Frame
Tree Guard
Irrigation System
Site Preparation
Trees (by species)
Shrubs (by species)
Plants (by species)
Native Species Planting Area
Sodding, Class A
Topsoil surface, Furnished, 4 inch
Mulch, Shredded Bark
Irrigation Meter Pit
Ea
Ea
LS
LS
Ea
Ea
Ea
Ea
Syd
Syd
Cyd
Ea
Site Preparation:
Measurement and payment for the “Site Preparation” shall be by the contract
unit price lump sum in accordance with subsection 815 of the 2012 Standard
Specification for Construction (MDOT). Site preparation shall include all topsoil,
soil mixtures, excavation and backfilling required to prepare the plant site for
placement of the ground cover item specified.
7­23
Trees and Shrubs:
Measurement and payment for trees and shrubs shall be by the contract unit
price each. Payment shall be full compensation for all labor, material and
equipment to complete the work as per plan detail and 2012 Standard
Specifications for Construction (MDOT).
Plants:
Measurement and payment for plants shall be by the contract unit
price each or if planting areas are specified by the contract unit price for each
planting area. Payment shall be full compensation for all labor, material and
equipment to complete the work as per plan detail and 2012 Standard
Specifications for Construction (MDOT).
Watering:
Watering will be incidental to the placement of the sod and or landscaping items in
accordance with subsection 815 and 816 of the 2012 Standard Specification for
Construction (MDOT). Completion of the mandatory waterings as specified by
MDOT will be considered in the final acceptance of the project.
Irrigation Meter Pit:
Measurement and payment for the irrigation meter pit shall be by the contract
unit price each. Payment shall be full compensation for all labor, material and
equipment to complete the work as per plan detail.
END OF SECTION
7­24
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION FOR
BRICK PAVING WORK
A. General Description
Provide brick pavers and install as specified on plans.
Brick pavers shall comply with the American Society for Testing and Materials, Designation
C936­96; however, more stringent requirements take precedence over C936­96. Do no work
during freezing weather or set on frozen subgrade or sub­base. Water, if required, must be
provided by the contractor. In addition to furnishing and installing the paver block, this work
shall consist of furnishing and installing the sand bed for the block and a crushed stone sub­
base.
B. Materials
1. Brick Pavers
These requirements are based on pavers as manufactured by Wausau Tile, P.O.
Box 1520, Wausau, WI 54401. Equal products of other manufacturers complying
with these drawings and specifications receiving prior approval by the Engineer
will be accepted.
For Terraces and Walks
Shape to be ­ Holland ­ Red Range
Dimension ­ 4 inch x 8 inch x 2 3/8 inch
Weight – 8.6 lbs
Strength – 8000 to 12000 psi
2. Sand
Clean mason sand, from one (1) source.
C. Preparation
1. Place and compact to 100% density, a crushed stone sub­base to provide a
smooth uniform surface before placing the 2 inch of mason sand.
2. The contractor shall check subgrade as to soundness, elevation, outline, contour,
etc. Discrepancies, irregularities, etc. shall be brought to the attention of the
Engineer.
D. Installation
1. Installation to be performed by/or under supervision of persons with previous
7­25
experience in this field. Experience shall be defined as one who has previously
installed a minimum of 500 square feet of brick pavers at any one particular
installation. Qualifications must be approved by the Engineer.
2. 2 inch sand lift to be furnished and installed by this contractor. Prepare sand bed
by level­screeding sand to proper height. Side guides (screeds) to be set at 2 inch
below finished surface level and at proper pitch. Sand lift to be a uniform 2 inch
thickness at all points. Sand must be smooth and without low spots.
3. Begin laying pavers from a convenient edge stepping first from an adjacent area
and then from the laid blocks ­ not on the sand bed. Pavers are to be set hand
tight. Snap chalk lines on sand bed to maintain proper line. Place whole pavers
over entire area and then go back to make necessary paver cuts to finish areas.
4. Cut pavers with a mechanical shear machine. At out corners, cut or notch blocks
to fit adjoining surfaces. Cut and install brick pavers as required at all perimeter
areas.
5. Machine tamp to 2 inch screeded level with a rubber roller type vibrator. Vibrate
to height of adjoining surfaces.
6. After vibration to proper levels and pitches has taken place, sweep a thin layer of
clean mason sand into all joints, until joints are filled to within 15mm of surface.
E. Test Reports
1. Tests shall be conducted in accordance with ASTM C67 for clay brick. Only full
sized paving units ­ not cubed portions shall be used in all testing procedures.
Supplier of paving units shall provide certified laboratory test reports indicating
compliance with specification requirements and batch identification. An
absorption test of no more than 5% and a freeze­thaw test of 50 cycles shall also
be certified. Test reports shall be filed for every 20,000 paving units delivered to
the job site.
Compression Strength ­ At the time of delivery to the worksite, the average
compressive strength shall be not less than 8000 psi with no individual unit less than
7500 psi.
Absorption ­ The average absorption shall be not greater than 5% when tested in
accordance with ASTM C140­75.
Durability ­ Freeze­Thaw Test for Clay Brick ­ When tested in accordance with
Section of ASTM C67­73, specimens shall have no breakage and not greater than
1.0 percent loss in dry weight of any individual unit when subjected to 50 cycles of
freezing and thawing.
Length or width of pavers shall not differ by more than 1/16 inch from approved
samples. Heights of pavers shall7­26
not differ by more than 1/16 inch from specified
standard dimension. Test reports are to be filed with the Engineer. The cost of all
testing shall be borne by the contractor.
2. If any test results in the non­compliance of any batch of brick pavers, all brick
pavers from said batch shall be removed form the site and replaced, all at the
expense of the contractor.
F. Cleaning
At the completion of work, remove rubbish, debris, dirt and equipment and excess material
from site. Clean adjoining surfaces which were soiled by and during the course of this work.
G. Guarantee
1. Finished area shall be free from bumps or depressions evenly graded to levels
shown, and shall be guaranteed against defects of materials or workmanship for
period of two years after substantial completion.
2. Material to equal or surpass the aforementioned ASTM Specifications:
Section 2 ­ 2.1, 2.1.1
Section 2 ­ 2.2, 2.2.1
Section 3 ­ 3.2
Section 3 ­ 3.3
Section 5 ­ 5.2
H. Replacement
1. This Contractor to provide whole replacement brick pavers as follows:
Color used for walk levels ­ 100 whole pavers.
2. Replacement pavers to be delivered by this contractor to the City of Marquette
storage yard. Brick pavers to be signed for by City representative so designated
by City.
I. Measurement and Payment
1. Measurement and payment for brick pavers shall be at the contract unit price per
square foot. Payment shall be full compensation for all mason sand, 21A stone,
brick pavers, labor materials and equipment used in preparing sub­base and
placement of brick pavers.
Pay Item
Pay Unit
Brick Pavers
Sft
7­27
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
UNIT MASONRY
A. General Description
Provide concrete masonry unit and stone veneer where shown on the drawings, as specified
herein, as needed for a complete and proper installation.
B. Quality Assurance
Use adequate numbers of skilled workmen who are thoroughly trained and experienced in
the necessary crafts and who are completely familiar with the specified requirements and
the methods needed for proper performance of the work on this Section.
C. Submittals
1. Provide sample of Natural Stone Veneer International “Cambria”.
2. Provide sample of Natural Limestone Stone Coping.
D. Product Handling
n
Materials shall be handled, stored, and protected in a manner to avoid chipping,
breakage, contact with soil or contaminating material, and exposure to the elements.
n
Stone Veneer shall be delivered to the job site in air­dry condition.
n
Anchor bolts shall be kept free of rust.
n
Cementitious material shall be stored in a manner to prevent deterioration due to
water damage or by contamination due to foreign materials.
E. Concrete Masonry Units
1. Provide standard weight load­bearing concrete masonry units complying with
ASTM C90, latest addition.
F. Stone Veneer
Stone veneer to be Natural Stone Veneers International “Cambria”.
G. Reinforcements and Accessories
1. Horizontal concrete masonry reinforcements will be “Adjustable Econo­cavity Lock
7­28
II, AA580" as manufactured by AA Wire Products each 3rd row to be installed per
Manufacturer’s printed instructions. Equal products of other manufacturers
complying with these drawings and specifications receiving prior approval by the
Engineer will be accepted.
2. Wall Ties:
Where veneer is backed up with concrete masonry units, use 5 mm galvanized
steel wire hook type box ties as recommended by AA Wire Products for use with
A580 Reinforcing.
H. Mortar
1. Cement: Type N Masonry cement by Huron or equal.
2. Aggregate: Clean, sharp, well graded masons sand conforming to ASTM C144.
3. Admixtures: Admixtures shall not be used unless specifically approved in writing by
the Engineer.
4. Water: Provide fresh, clean, water free of amounts of minerals, acids, alkalis or
organic materials that may be deleterious to mortar or any metal or other
component of wall assembly.
5. Color: Tint mortar as directed by Owner. Provide field samples as necessary for
approval.
I Other Materials
1. Weep Holes ­ Provide #341 ½ inch O.D. plastic weep holes as manufactured by
Hohmann & Barnard, Inc. Equal products of other manufacturers complying with
these drawings and specifications receiving prior approval by the Engineer will be
accepted.
2. Control Joints ­ Provide QS Series rubber control joints, where shown on the
drawings, as manufactured by Hohmann & Barnard, Inc. (1/2 inch o.c. min.) Verify
exact location with Owner. Equal products of other manufacturers complying
with these drawings and specifications receiving prior approval by the Engineer
will be accepted.
J. Preparation
1.
Examine the areas and conditions under which work of this section will be
performed. Correct conditions are detrimental to timely and proper completion
of the work.
2. Lay no masonry when temperature of outside air is 40 degrees F or colder. Protect
from freezing for 72 hours minimum after laying.
3. Units with suction greater than 30 gm/min/sq. inc. may need to be wetted prior to
laying to reduce initial rate of absorption to an acceptable level to achieve
7­29
proper bond of mortar to brick.
4. In general, units should be wetted on the day previous to laying so that they are
sufficiently damp to allow mortar to remain plastic enough to permit units to be
leveled and plumbed and not so wet to cause bleeding of mortar joints floating
units.
K. Installation
1. Mortar
a. The measurement of materials for mortar shall be by volume or weight such
that accuracy of the proportions can be controlled and accurately
maintained, measurement of sand by shovel shall not be permitted.
b. Proportions of material using Type N masonry cement shall be as
follows:
­ Cement: One part by volume of 43 kg by weight.
­ Types hydrated lime: One part by volume or 18 kg by weight.
­ Masons sand: Not less than 4.5 nor more than 6.0 parts by volume
measured damp and loose or not less than 164 kg of dry sand nor more
than 218 kg of dry sand measured by weight.
c. Mix mortar with the maximum amount of water consistent with
workability to provide maximum tensile bond strength within the
capacity of the mortar.
d. All materials shall be mixed for a minimum of 3 minutes and a
maximum of 5 minutes in a mechanical batch mixer.
e. Mortar that has stiffened because of evaporation of water shall be
retempered by adding water as frequently as needed to restore
required consistency. Mortar shall be used and placed in final position
within 2 hours after mixing. Mortar not used within 2 hours shall be
discarded.
2. Laying
a. Unless otherwise indicated on the drawings, make the work plumb, level
and true to line, with square angles and corners.
b. Use line blocks wherever possible. When it is absolutely necessary to use a
line pin, fill the hole immediately after the pin is withdrawn.
c. Use only C.M.U.’s and brick that are clean and free from dust and other
foreign matter.
d. Lay in running bond unless otherwise shown on the drawings.
e. Head Joints: Regardless of thickness, completely fill with mortar.
7­30
f.
Where units are accidentally moved or shifted, remove and lay again in
fresh mortar.
3. Tooling
a. All visible joints, both exterior and interior shall be tooled concave.
b. Concealed joints may be struck flush, provided waste mortar does not clog
vent of cavity spaces.
4. Pointing, Cleaning, and Protection
a. At the completion of this portion of the work, visually inspect the work of this
section and point, or cut out and repoint if necessary, all holes and
defective joints.
b. Thoroughly clean all brick surfaces to be left exposed in the finished work,
removing all traces of mortar, grout and foreign matter.
c. After all masonry work is complete the contractor shall apply 2 coats of
“Graffiti Control WB” as manufactured by PROSOCO or approved equal to
all exposed surfaces of concrete masonry units and stone masonry units.
Product shall be applied in accordance with the manufacturer’s
instructions and recommendations.
L. Measurement and Payment
1. Measurement and payment for Stone Veneer will be by the square foot.
2. Measurement and payment for Stone Coping will be by each.
3. All masonry and accessories will be paid for under the following bid pay items:
­
­
­
4. Payment shall be payment in full for all labor, equipment, and materials required
to complete the work.
Pay Item
Pay Unit
Stone Veneer
Stone Coping
Sft
Each
7­31
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
ARCHITECTURAL PRECAST CONCRETE
A. General
1. Work included: All labor and materials to construct and install architectural
precast concrete copings.
2. Use adequate numbers of skilled workmen who are thoroughly trained and
experienced in the necessary crafts and who are completely familiar with the
specified requirements and the methods needed for proper performance of the
work in this Section.
3. Fabricator Qualifications: Firm having a minimum of 5 years successful experience
in fabrication of architectural precast concrete units, similar to members required
for this project, will be acceptable. Fabricator must have sufficient production
capacity to produce, transport, and deliver required units without causing delay in
the work.
B. Submittals
1. Product data and instructions for manufactured materials and products, include
mix designs, certification, and laboratory test reports as required. Include water
absorption test reports.
2. Shop Drawings showing complete information for fabricating and installing the
work of this section including, but not necessarily limited to:
a. Show layout, dimensions and identification of each precast unit. Include
identification of caulked and grouted joints.
b. Special reinforcement and lifting devices necessary for handling and
erecting.
c. Concrete mix design.
d. Similar data required to fully describe the proposed method of fabricating,
erecting and installing the work of this section.
e. Provide 12 inch x 12 inch x 2 inch sample illustrating quality, color and
texture of the surface. Precast will be colored to match masonry (UTAH
RED SANDSTONE) which may require several submissions to achieve
acceptable color match.
7­32
C. Product Handling
1. Deliver precast concrete units to project site in such quantities and at such times to
assure continuity of installation. Store units at project site to prevent cracking,
distorting, warping, staining, or other physical damage and so that markings are
visible. Lift and support units only at designated lifted or supporting points as
shown on final shop drawings.
2.
Provide forms and form­facing materials of metal, plastic wood, and other
acceptable material that is non­reactive with concrete and will produce
required finish surfaces.
D. Reinforcing Materials
1. Reinforcing Bars: ASTM A615, Grade 60 deformed.
2. Epoxy­Coated Reinforcing Bars: ASTM A775
3. Galvanized Reinforcing Bars: ASTM A767, Class II (2.0 oz. Zinc psf), hot­dip
galvanized after fabrication and bending.
4. Steel Wire: ASTM A82, plain, cold­drawn, steel.
5. Welded Wire Fabric: ASTM A185.
6. Welded Deformed Steel Wire Fabric: ASTM A497.
7. Supports for Reinforcement: Provide supports for reinforcement including bolsters,
chairs, spacers, and other devices for spacing, supporting and fastening
reinforcing. For exposed­to­view concrete surfaces, where legs of supports are in
contact with forms, provide supports with legs that are plastic protected (CRSI,
Class 1) or stainless steel protected (CRSI, Class 2).
E. Concrete Materials
1. Portland Cement: ASTM C 150, Type I or Type III, White.
2. Use only one brand, type, and source of supply of cement throughout the project.
3. Coarse Aggregate: Crushed Lime Stone conforming to ASTM C33 for “Severe
Weathering Region”: hard durable, carefully selected and graded; free of
material causing staining or reaction with cement and with less than 5%
magnesium sulfate soundness loss. Use aggregate from same source as those
used in Owner’s control sample.
4. Fine Aggregate for Facing Mixes: 2NS.
5. Water: Potable, free from foreign materials in amounts harmful to concrete and
7­33
embedded steel.
6. Air­Entraining Admixture: ASTM C 260.
7. Water­Reducing, Retarding, Accelerating Admixtures: ASTM C 494, types as
selected by Fabricator and containing not more than 0.1 percent chloride ions.
8. Cement Grout: Portland cement and clean, natural sand, ASTM C404. Mix at ratio
of 1.0 part cement to 3.0 parts sand, by volume, with minimum water required for
placement and hydration.
F. Proportioning and Design of Mixes
1. Prepare design mixes for each type of concrete required.
2. Design mixes may be prepared by independent testing facility or by qualified
precast manufacturing plant personnel, at precast fabricator’s option.
3. Proportion mixes by either laboratory trial batch or field experience methods, using
materials to be employed on the project for each type of concrete required,
complying with ACI 318.
4. Facing Mix: Standard­weight concrete consisting of specified portland cement,
aggregates, admixtures and water to produce the following properties:
­ Compressive Strength: 3700 lbs/ft2 minimum at 28 days.
­ Total air content: Not less than 4 percent nor more than 6 percent.
­ Water Absorption: Not to exceed 5 to 6 percent by weight, except between
3 to 4 percent from sloping surfaces (sills).
5. Submit written reports to City Engineer of proposed mix for each type of concrete
at least 15 days to start of precast unit production. Do not begin concrete
production until Owner has reviewed mixes and evaluations.
6. Adjustments to Concrete Mixes: Mix design adjustments may be requested when
characteristics of materials, job conditions, weather, test results, or other
circumstances warrant. Laboratory test data for revised mix designs and strength
results must be submitted to and accepted by Owner before using in the Work.
7. Admixtures: Use air­entraining mixture in strict compliance with manufacturer’s
directions. Admixtures to increase cement dispersion or provide increased
workability for low­slump concrete may be used subject to Owner’s acceptance.
8. Use amounts as recommended by admixture manufacturer for climatic conditions
prevailing at time of placing. Adjust quantities of admixtures as required to
maintain quality control.
G. Fabrication
1. General: Fabricate precast concrete units complying with manufacturing and
7­34
testing procedures, quality control recommendations, and following dimensional
tolerances, unless otherwise indicated.
2. Forms: Accurately construct forms mortar­tight and of sufficient strength to
withstand pressures due to concrete placing operations, temperature changes,
and when prestressed, pretensioning and detensioning operations. Maintain form
work to provide completed precast concrete units of shapes, lines, and
dimensions indicated, within specified fabrication tolerances.
3. Dimensional Tolerances of Finished Units: Overall height and width measured at
face adjacent to mold at time of casting:
­ 3m or less: Plus or minus 3mm.
­ 3m to 6m: Plus 3mm, minus 5mm.
­ Angular deviation of plane of side mold: 1mm per 75mm depth or 1.5mm
total, whichever is greater.
­ Out of square (difference in length of two diagonal measurements): 3mm
per 6 per or 6mm total, whichever is greater.
­ Thickness: Minus 3mm, plus 6mm.
­ Tolerances or other dimensions not otherwise indicated: Numerically
greater of plus or minus 1.5mm per 3m, or plus or minus 3mm.
4. Fabricate units straight, smooth, and true to size and shape, with exposed edges
and corners precise and square unless otherwise indicated. Precast units that are
warped, cracked, broken, spalled, stained, or otherwise defective will not be
acceptable.
5. Expansion Joints: Free of grout, mortar, or other obstructions to expansive
movement, with expansion joint filler where indicated.
6. Copings: Every other joint between units, unless otherwise indicated. Align joints
with vertical expansion joints in adjacent masonry.
7. Surface Finish: Smooth surface finish free of pockets, sand streaks, and
honeycomb, with uniform color and texture to match Owner’s control sample.
Color is to match sandstone.
H. Installation
1. Do not install precast units until supporting masonry has attained allowable design
compressive strength.
2. Install precast concrete members plumb, level, and in alignment within PCI MNL­
117 and specified limits of erection tolerances. Provide temporary supports and
bracing as required to maintain position, stability, and alignment as members are
being permanently connected. Maintain horizontal and vertical joint alignment
and uniform joint width as erection progress.
3. Accessories: Install clips, hangers, and other accessories required for erection of
precast units to supporting members and backup materials.
7­35
4. Cleaning: Clean exposed facings to remove dirt and stains on units after erection
and completion of joint treatments. Wash and rinse in accordance with precast
manufacturer’s recommendations. Protect other work from damage due to
cleaning operations. Do not use cleaning materials or processes that could
change the character of exposed concrete finishes.
I. Erection Tolerances
1. Warpage: Fabricate and install wall panels so that each panel after erection
complies with following dimensional requirements:
a. Bowing (concave or convex) of any part of a flat surface not to exceed
length of bow/260, with a maximum of ¾ inch up to 30 feet.
b. Maximum warpage of one corner out of plane of other three, the greater
of 3/16 inch per foot distance from nearest adjacent corner, or 1/8 inch.
2. Tolerances for Location of Precast Units: Fabricate and erect precast units so that
joints between panels meet the following:
a. Face width of Joints: Plus or minus 3/16 inch.
b. Joint taper: 3/16 inch per foot length, with maximum length of tapering in
one direction of 10 feet.
c. Step in face: 1/4 inch.
d. Jog in alignment of edge: 1/4 inch.
e. Alignment for exterior panels is outside face.
f. Variation from plumb: Plus or minus 1/2 inch in any 36 foot run.
g. Variation from level: Plus or minus 1/2 inch in any 36 foot run.
J. Performance Requirements
1. Conduct inspections, perform testing, and make repairs or replace unsatisfactory
precast units as required. Limitations as to amount of patching permitted are
subject to acceptance by Owner.
2. In addition to above, in­place precast units may be rejected for the following:
­ Exceeding specified installation tolerances.
­ Damage during construction operations.
­ Surface finish deficiencies in exposed­to­view surfaces.
K. Measurement and Payment
1. Measurement for this item will be by the foot.
2. Precast and all accessories will be paid for under the bid pay item “Stone Coping”.
7­36
3. Payment shall be payment in full for all labor, equipment, and materials required
to complete the work.
Pay Item
Pay Unit
Stone Coping
Foot
END OF SECTION
7­37
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
HEALTH AND SAFETY
A. General Description
This section covers the work, materials, and equipment necessary for the contractor to meet
health and safety requirements during performance of the work.
1. Site Work Environment
The area through the parking lot at the old Lakeshore Iron Works site has had
“Environmental Site Assessments” completed with the following hazardous
materials known present ”high metal concentrations”. No warranty, either
expressed or implied, can be made that conditions observed at these sites are
representative of all areas of the subject sites. Work at the site may expose the
Contractor’s personnel to hazardous substances, health hazards or safety hazards.
The Contractor is responsible for the safety and health of the Contractor’s
employees, agent and/or subcontractor on or near the site. The Contractor, in
conjunction with the owner and/or the consultant, is responsible for determining
when impacted soil and/or water are encountered. In these instances, the
Contractor is responsible for ensuring that its employees where appropriate
personal protective equipment. Impacted soils which require excavation must be
transported by the Contractor and stock piled on­site at the designated staging
area.
2. Safety
a. The Contractor will be responsible for initiating, maintaining and supervising
all safety precautions and programs in connection with the work as may
be required by statute, law or a Site Health and Safety Plan. The
Contractor will take all necessary precautions for the safety of, will provide
the necessary equipment for the safety of, and will provide the necessary
protection to prevent damage, injury or loss to all employees on the work
site and other persons who may be affected thereby including safety
precaution related to all the work and all materials or equipment to be
incorporated therein, whether in storage on or off the site, and other
property at the site or adjacent thereto.
b. Chemical and/or laboratory analyses may have been performed on the
waste, soil and/or groundwater in the work area. These analyses and other
data representing site conditions are available for review at the office of
the consultant. The consultant and owner do not imply that these test
results or other information are representative, exhaustive, or
comprehensive. The consultant and owner expressly disclaim any
warranties as to the test data and other information. The Contractor
assumes responsibility for obtaining and studying the results of all chemical
analyses and measurements performed on waste, soil or groundwater in
the area of investigation and the relationship between these analyses and
7­38
measurements and the work.
c. The Contractor is responsible for ensuring compliance with all applicable
federal, state and/or local regulations regarding worker safety and
environmental protection as it pertains to the Work. If a conflict occurs
between any of these requirements, the more stringent shall apply.
B. Health and Safety Requirements
1. The Contractor shall ensure that all the Contractor’s personnel and
subcontractor’s who may be exposed to hazardous substances, health hazards or
safety hazards are thoroughly trained according to the requirements of
Occupational Safety and Health Administration regulations specified in 29 CFR
1910.120, and are advised as to the potential risks in the work area. Training shall
include but not be limited to, use of personal protective equipment (including
respirators), documentation hazard recognition, safe operating procedures, and
emergency response. At least one on­site employee shall hold a valid first aid and
CPR certificate.
2. The consultant shall prepare, and the contractor shall abide by, a project­specific
Site Health and Safety Plan. The plan will establish specific requirements to ensure
worker protection when impacted soil and/or groundwater are encountered
during completion of the work.
3. The Contractor shall designate a Site Safety Coordinator (SSC) to implement,
monitor, and enforce the contractor’s specific safety programs, as well as the Site
Health and Safety Plan. The SSC shall have a sound working knowledge of
Federal and State occupational safety and health regulation. The contractors
SSC may implement requirements in addition to those specified herein. The
consultant is not responsible for enforcing or supervising the contractor’s work
and/or safety programs.
4. Should any unforeseen or site specific safety regulated factor, hazard, or condition
become evident during the performance of the work, the contractor shall take
immediate and prudent action to establish and maintain safe working conditions
and to safeguard site personnel, the public, and the environment. The
contractor’s SSC shall also immediately inform the consultant of such condition(s).
C. Measurement and Payment
Payment for work satisfactorily completed under this section of the contract will be
considered incidental to the work perfumed on one or more of the bid pay items.
7­39
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
DECONTAMINATION AND CONTAINERIZATION
A. General
This section covers the work, materials, and equipment necessary for the decontamination of
the excavation equipment and tools used to handle impacted soil or groundwater. Also
covered is the handling, containerization and transport of waste materials and the fluids
generated by decontamination operations.
B. Products
1. All equipment, materials and supplies for decontamination, wastewater/spoil
handling, containerization, and transport shall be in good working condition prior
to use in the work. The Contractor shall operate and maintain equipment in
conformance with manufacturer’s recommendations.
2. The Contractor shall use containment and transport devices which limit the spread
of suspect materials to non­impact areas of the work site. Also, a sufficient number
of new or reconditioned, clean 210 L. Steel drums approved by the U.S.
Department of Transportation or other waste containers as required by the work
and approved by the consultant, shall be provided by the contractor for the use
of the Contractor to collect and transport waste material, decontamination water
and other similar materials/wastes to the designated on­site staging area. If
reconditioned drums are used, documentation is required to support that the
drums have been properly decontaminated prior to use.
C. Execution
1. Procedures used for equipment decontamination shall follow ASTM D­5088­90
“Standard Practice for Decontamination of Field Equipment Used at Non­
Radioactive Waste Sites”.
2. Should equipment contamination be noticed either through qualitative or
quantitative means, the equipment shall be further decontaminated until clean.
Contractor shall provide decontamination solvents and containment systems as
may be necessary to achieve compliance with this Section.
3. Decontamination water shall be handled in a manner to prevent spillage.
4. Drums and/or containment devices shall not be overfilled beyond the capacities
recommended by the manufacturer.
5. All containment devices shall be labeled with the contents, source and date by
the Contractor.
7­40
6. The containment devices shall be transported by the contractor to an on­site
staging area designed by the consultant.
7. All waste materials generated by the Contractor and its subcontractors shall be
containerized and/or stockpiled and labeled by the Contractor in manner
consistent with all applicable environmental , safety and transportation
requirements imposed by local, State off Michigan and any applicable Federal
agency. The Contractor will be responsible for disposal.
D. Measurement and Payment
Payment for work satisfactorily completed under this section of the Contract will be
considered incidental to the work performed. Waste material handling, stockpiling,
containerization, storage and transport to an on­site area will be considered incidental to
one or more of the pay items.
7­41
END OF SECTION
7­42
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
NON­HAZARDOUS CONTAMINATED MATERIAL HANDLING AND DISPOSAL
A. General
This work shall consist of all labor, equipment, and materials necessary to handle, transport,
and dispose of the non­hazardous contaminated material and shall include any and all
laboratory testing required for the proper disposal of the material.
B. Construction Methods
The work shall be in accordance with the 1996 Standard Specifications for Construction,
except as modified herein or as directed by the Engineer.
1. Excavation of Non­Hazardous Contaminated Material
Non­hazardous contaminated material shall be excavated as shown on the
design plans or as directed by the Engineer or representative.
2. Temporary Storage on Non­Hazardous Contaminated Material
Excavated non­hazardous contaminated material which is to be temporarily
stockpiled shall be placed on plastic sheeting or tarps having a minimum
thickness of .15mm or in trucks, roll off boxes, or other containers such that no liquid
may escape from the containment. At the end of each work day, the non­
hazardous contaminated material shall be covered securely with plastic sheeting
of .15mm thickness or greater.
3. Sampling and Analysis on Non­Hazardous Contaminated Material
The Contractor shall be responsible for all sampling and analysis required for
disposal of non­hazardous contaminated material. The analysis required shall be
dictated by the Type II disposal facility to be utilized for disposal. Should the results
of the analysis show the material to be hazardous, as defined by Part 111, of the
Natural Resources and Environmental Act, Act 451, PA 1994, the project engineer
shall be notified immediately. The material shall then be disposed of as directed
by the Engineer.
4. Disposal of Non­Hazardous Contaminated Material
Disposal of non­hazardous contaminated material shall be at a licensed Type II
Sanitary Landfill. The Contractor shall submit at the preconstruction meeting the
name of the Type II Landfill to be used for disposal, the sampling and analysis
requirements of the landfill, and verification that use of the proposed landfill will
meet the requirements of the County solid waste plan. The proposed landfill must
be acceptable to the City of Marquette and therefore approval must be
obtained from the Engineer prior to commencing disposal operations. Prior to
7­43
obtaining approval for disposal for the City of Marquette, the Contractor shall
provide a copy of the laboratory analysis to the Engineer. Following disposal and
prior to approval of payment the Contractor shall provide the Engineer landfill
receipts for all non­hazardous contaminated material disposed of.
C. Measurement and Payment
The completed work as measured for Non­Hazardous Contaminated Material Handling and
Disposal will be paid for at the contract unit price for the following contract item (pay item):
Non­Hazardous Contaminated Material Handling and Disposal will be measured by volume
in cubic meters, loose measure. Prior to payment the Engineer shall be given receipts from
the disposal facility for the number of cubic feet disposed of at the facility. Payment shall
include costs for materials, labor, and equipment needed for storage, loading,
transportation, testing and disposal of the non­hazardous contaminated material. Disposal
costs shall include all documentation required by the landfill.
Payment for excavation on non­hazardous contaminated materials shall be included with
the related items of work.
Delays in testing and disposal of non­hazardous contaminated materials that are not the
fault of the Contractor may be considered valid reasons for extension of time. However,
these delays and the resultant extensions of time will not be considered valid reasons for
additional payment. Should the material test hazardous, payment for disposal of hazardous
material shall be as per section 1.09.07 Extra and Force Account Work as per the MDOT 2012
Standard Specifications for Construction. Hauling shall be by a licensed hazardous waste
hauler and disposal shall be at a licensed disposal facility. Prequalification is waived.
Pay Item
Pay Unit
Non­Hazardous Contaminated Material
END OF SECTION
7­44
Cft
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
CONCRETE RETAINING WALL
A. General
Section 706 of the MDOT 2012 Standard Specifications for Construction is amended as
follows:
In addition to the requirements in the standard specification, the following items shall be
included under this section: steel reinforcing, as shown on the plans; fabric and pea gravel as
shown on the plans; weep holes, as shown on the plans; and concrete retaining wall
(concrete grade S2) as shown on the plans.
B. Materials
All materials will conform to the provisions of MDOT 2012 Standard Specifications for
Construction.
C. Installation
1. All construction shall conform to the provisions of MDOT 2012 Standard
Specifications for construction.
2. Installation to be performed by/or under supervision of persons with previous
experience in this field. Experience shall be defined as one who has previously
installed concrete retaining walls for a period of 10 years of more. Qualifications
must be approved by the Engineer.
3. All concrete that is exposed to view after completion of construction shall have a
rubbed surface finish.
D. Measurement and Payment for Concrete Retaining Wall
Concrete retaining wall shall be paid on a square foot basis for all wall placement to the
line and grade as shown on the plans.
Payment shall be payment in full for all labor, equipment and materials (including
foundation excavation, granular class III material backfill, steel reinforcement and all other
materials) required to complete the work.
Pay Item
Pay Unit
Retaining Wall, Concrete
7­45
Sft
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
REMOVAL OF EXISTING SIGNS
A. General Description
Existing traffic signs along the project shall be maintained as much as possible during the
construction period. When it becomes necessary to remove the sign, the sign shall be
carefully removed and protected by the contractor for reuse by the City of Marquette.
Elements to support the sign removed by the contractor shall become the property of the
Contractor.
The Contractor will deliver the salvaged signs and coordinate with the Public Works
Department on the drop off location.
Payment for removing signs shall be by each sign and shall be full compensation for all labor,
tools, equipment and materials needed to complete the work.
Pay Item
Pay Unit
Sign, Remove
Ea
END OF SECTION
7­46
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
REMOVING SIDEWALK
A. General Description
Section 204 of the MDOT 2012 Standard Specifications for Construction for the item of removing
sidewalk is modified as follows:
Removing concrete driveways will be paid as removing sidewalk.
Pay Item
Pay Unit
Sidewalk, Remove
Syd
END OF SECTION
7­47
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
SOIL EROSION AND SEDIMENTATION CONTROL
A. General
This section is added to section 208 of the MDOT 2012 Standard Specifications for
Construction.
B. Scope of work
The Contractor shall be responsible for all erosion and sedimentation control measures as
required to prevent erosion of slopes and to prevent sediment from entering existing streams,
ponds, or storm sewers. This shall apply not only to public rights­of­way, but also private
properties adjacent to or downstream of the construction influence area (CIA). Soil erosion
and sediment control measures shall include silt fence, culvert sediment traps, excavated
sediment traps, sand bags, and other such effective measures necessary to control erosion or
as may be directed by the engineer.
The project contains a soil erosion and sedimentation control plan. The Contractor shall use
this plan as a guide to minimum requirements.
In addition to the measures listed above and shown on the plans, the Contractor shall stage
his work so as to minimize the potential for erosion and sedimentation. For example:
Graveling and permanent restoration work shall closely follow the grading operation. If an
area is subject to erosion, the contractor shall take immediate steps to prevent sediment
from leaving the construction area.
Stockpiles of soils prone to erosion that will be stored in the right of way will be required to
have tarp coverage. In addition the uphill end of the stockpile shall be sand bagged on the
uphill end in an arc to divert any concentrated flows.
It shall be the Contractor’s responsibility to monitor the National Weather Services predictions
and to avoid working an area subject to erosion if weather conditions are predicted to
include moderate to heavy precipitation.
The Contractor shall have on staff a certified storm water operator and report weekly on the
status of soil control measures and proposed activities for the following week.
C. Measurement and Payment
Payment shall be made for the item of soil erosion and sedimentation control on a lump sum
basis. The Contractor shall include all costs for construction and maintenance for erosion
control measures in the item of soil erosion and sedimentation control.
If at any time the potential for erosion or sedimentation loss exists the City Engineer may stop
work until the condition is corrected. Failure to make these corrections after repeated
7­48
discussions will result in the City of Marquette Public Works Department doing these repairs
with the cost of making such repairs being deducted from the contract.
Partial payments will be made on a percentage of plan erosion control measures placed.
Pay Item
Pay Unit
Soil Erosion and Sedimentation Control
END OF SECTION
7­49
LS
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
POLE HOLDING
A. General Description
Contractor shall be responsible for holding poles that may need to be supported during
work.
1. Construction Methods
Contractor shall hold utility poles that may need support during work. Contractor
shall develop a means and methods procedure for holding poles and have it
approved by the Marquette Board of Light and Power prior to starting work.
Contractor shall coordinate his work with the Marquette Board of Light and Power.
2. Measurement and Payment
Will be paid for by each. Work includes all material, equipment and labor to
perform this work for the required time each pole is to be held.
Pay Item
Pay Unit
Pole Holding
Ea
7­50
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
MAIL BOX POSTS
A. Description
Relocating of mailbox shall be done at the direction of the City Engineer or when
accessibility to a mailbox is cut off.
B. Construction Methods
This work consists of removing existing mailbox supports and mailboxes and relocating them
during construction staging. Existing newspaper boxes and supports that interfere with
construction shall be removed and stored for the property owners’ future installation. The
contractor shall maintain serviceability of the existing mail boxes and support during all
stages of construction. Temporary location of mailbox, if required, shall be approved by the
City of Marquette Engineer and the Postmaster prior to work. A new post shall be installed at
the permanent location after construction activities are completed. The existing mailbox
shall be attached securely to the post and the existing support shall be disposed of at the
property owners’ option. Mailbox posts shall be set in the ground so that the top shall be
approximately 48 inch above the surface of the shoulder of the road or mailbox turnout. The
exact height will be determined by the City Engineer. The posts shall be sawed so that the
top of the post is level.
C. Materials
Posts used for mailbox posts shall be manufactured from the following species: Red Oak,
Hard Maple, Red Maple, White Ash, White­Heartwood Beech, Yellow Birch, Northern White
Cedar, (Red Pine, Eastern White Pine, Northern white Pine; No. 1 or better), Douglas­fir; No. 2
or better, southern Pine Species; No. 2 or better.
Mailbox box posts shall be 72 inch long and shall either be a nominal 4 inch square cross
section or a round cross section having a minimum diameter of 4 ½ inch. Post shall be
treated according to AWPA Standards C1 and C2 and ASTM D 1760.
The contractor is advised that the V­Loc mailbox post, as produced by Foresight Products,
Inc. 10780 Irma Drive, Northglenn, Colorado, 80233 also of P.O. Box 626, Leland, Michigan
49654, is an acceptable alternate to the wood mailbox post illustrated on Standard Plan R74­
C, “Bumper and Parking Rails, and Misc. Wood Posts”.
D. Measurement and Payment
7­51
Payment for post, mailbox included removing and relocating the existing support during
construction activities, maintaining serviceability, placing a new post (standard) at the
permanent location after construction activities are completed, removing the mailbox from
the old support and attaching it firmly to the new post, and disposing of the old support.
Payment to remove, and store the existing newspaper boxes and supports are included in
the item Posts, Mailbox and will not be paid for separately. The contractor shall give the
affected property owner the option of disposing of the old support.
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
MODULAR RETAINING WALL
A. General Information
The retaining wall system utilized on this project shall be of gravity design. The system used
shall be the “Keystone Retaining Wall System”, the “Rockwood Classic Retaining Wall
System”, or the “Stonewall Select Retaining Wall System” utilizing the standard block system
with straight split face units or approved equal. The units shall be self draining and shall form
a mortarless, interlocking network. The “Geogrid” system will be incorporated as
reinforcement. Units shall be colored with the color selected by the Engineer from at least 6
different manufacturer’s colors. Samples shall be submitted for approval by the Engineer.
B. Installation
Locations and height of retaining walls shall be as directed by the Engineer and as shown on
the construction plans.
The bottom of the first row of retaining wall blocks shall be installed 7 ¼ inch below finished
grade on a 6 inch thick bed of crushed stone upon which the subsoil has been compacted
to at least 95% of maximum density (modified proctor method). A minimum of 12 inch of
granular material shall be placed behind the units to allow for adequate drainage. The cap
blocks shall be bonded to the top course with keystone kapseal or approved equal.
C. Payment
All other items necessary to complete the retaining wall including excavation and granular
material shall be considered included in the work item.
Pay Item
Pay Unit
Retaining Wall, Modular
END OF
SECTION
7­52
Sft
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
RAILINGS
A. General
The work included in this Supplemental Specification includes the materials, equipment and
labor to install the Pedestrian Railings of the types detailed on the plans and as specified
herein. Pedestrian Railings include all handrails, anchor bolts, paint and related materials
and parts necessary to complete or fasten each item detailed.
B. Materials
Shop drawings shall be submitted for all steel fabrications included in this project. All steel
and steel assemblies shall be clean and free from rust. All shall be shop primed.
1. Steel
A. Handrails and other steel included in this work shall be constructed of minimum
A­36 steel to conform to the details shown on the plans or as on approved
shop drawings as submitted by the Contractor. Grind all exposed welds
smooth for shop priming.
2. Paint
A. Samples shall be submitted by the Contractor for the finish specified on the
type of material on which the finish is to be used. Samples shall be mixed and
adjusted, as directed, to reach desired coloring. Only compatible coating
systems will be permitted for all coats.
B. The following paint finished are required for this work:
a. First Coat: Benjamin­Moore’s Iron Clad Retard­X Inhibitive Latex Primer
(163), or approved alternate.
b. Second Coat: Benjamin­Moore’s Alkyd Dulamel (207), or approved
alternate.
c. Third Coat: Benjamin­Moore’s Alkyd Dulamel (207), or approved
alternate.
7­53
C. Film thickness shall conform to manufacturer’s recommendations.
3. Other Materials
a. Provide other materials, not specifically described but required for a
complete and proper installation, as selected by the Contractor s
subject to the approval of the Engineer.
C. Construction Methods
Installation shall conform to the plans for each type of rail noted. All welds shall be
performed using certified welders only. Welds shall be ground smooth for painting and
where required for proper fit of other material.
Work shall be performed by an adequate number of skilled workers, thoroughly trained and
experienced in the necessary crafts and who are completely familiar with the specified
requirements and the methods needed for proper performance of the work in this section.
Mix and prepare paint materials in strict accordance with the manufacturer’s
recommendations producing a mixture a uniform density. When materials are not in use,
store in tightly covered containers, remove films which may have formed on the surface and
strain the materials, if necessary prior to use. An adequate number of properly trained, skilled
workers who are familiar with this specification shall be used.
Prepare surfaces in accordance with paint manufacturer’s recommendations, removing and
protruding nails and patching holes, as approved by the Engineer. Remove items which are
in place and are not scheduled to receive paint, reinstalling the items by using properly
trained workers following the completion of painting. The cleaning and painting should be
scheduled such that dust and other contaminants from the cleaning process will not fall onto
newly painted surfaces.
For application of the approved paint, use only equipment recommended for application of
the particular paint and approved by the Engineer.
Touch­up shop applied prime coats which have been damaged and touch­up bare areas
prior to start of finish coats application and soon after surface preparation has been
completed. Additional coats shall not be applied until the completed coat has been
inspected and approved. Sand and dust between coats, as necessary, to remove defects
visible to the unaided eye from a distance of five feet. All materials shall be applied
uniformly, free of runs, sags, wrinkles, streaks, shiners and brush marks. Reductions in viscosity
shall be done in accordance with the manufacturer’s label directions.
All sufficient drying time between coats, modifying the period recommended by the
manufacturer to suit adverse weather conditions. Solvent­thinned paints will not be
permitted when the ambient air temperature is below 50 degrees F, unless permitted by the
manufacturer and approved by the Engineer. Oil­base and oleo­esinous type paint will be
considered dry when the paint feels firm, does not deform or feel sticky under moderate
pressure of the thumb, and when the application of another coat of paint does not cause
7­54
lifting or loss of adhesion of the undercoat.
Spray applications shall be limited to metal framework and similar surfaces where hand
brush work would be inferior, as approved by the Engineer. In this case, apply each coat to
provide the hiding equivalent to brush coats. Doubling back with spray equipment to build
up film thickness will not be permitted.
When work is completed, match the approved samples as to texture, color and overage.
Remove, refinish or repaint work not in compliance with the specified requirements.
D. Measurement and Payment
Payment for this item shall include all work to provide the pedestrian and hand railings,
attachments, painting and hardware installed at the locations called for on the plan sheets.
Pay Item
Pay Unit
Pedestrian Guardrail
7­55
Foot
END OF SECTION
7­56
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
REHABILITATION OF SANITARY SEWER
A. GENERAL DESCRIPTION ­ PIPE REHABILITATION USING A SLIP LINING PROCESS
1. Work Included
The Contractor shall furnish all labor, equipment and materials necessary to
complete the lining of sanitary sewers as stipulated herein and as shown on the
Contract Drawings. As becomes applicable to this specific Contract, the work
shall include the preparation of the construction site, including a thorough
cleaning and television inspection before and after the lining; flow control bypass
pumping; protection of existing conditions during installation work; reinstatement
of all laterals; unloading; hauling; distributing and installation; testing of all pipe.
2. Intent of Specification
It is the intent of this Specification to provide for the reconstruction of sanitary
sewers by the installation of a pipe liner into the existing sewer line. When installed,
the pipe liner shall extend over the length of the pipe between manholes in a
continuous, tight fitting, watertight pipe­within­a­pipe. The lining system proposed
by the Contractor shall be submitted to the City Engineer for approval. The system
shall be installed using “Trenchless Technology”, no excavation of the main will be
required. Sanitary laterals will be replaced by use of the open cut method.
B. Quality Assurance
1. Codes and Standards
Work performed under this Section shall conform to the Drawings and
Specifications and shall comply with all standards, rules and regulations, laws and
ordinances of the Owner and all other authorities having jurisdiction, as amended.
That which is necessary to make the work comply with the above requirements
shall be provided without additional cost to the Owner.
C. Submittal
1. Materials List
After the award of the contract and before any sewer system materials are
delivered to the job site, the Contractor shall submit to the Engineer a complete
list of all materials proposed to be furnished and installed. Submittal shall show
manufacture’s name and catalog number for each item, furnish complete
catalog cuts and technical data, and furnish the manufacture’s
recommendations as to method of installation.
2.
Upon approval of the Engineer, the manufacture’s recommendations shall
become the basis for acceptance or rejections of actual methods of installation
used in the work.
7­57
3. The Contractor shall not permit any sewer lining component to be brought onto
the job site until it has been approved by the City Engineer.
D. Product Handling
1. Active Sewers
Maintain in operating condition all active sanitary and storm sewers encountered
in the sewer lining installation.
2. Connections to Existing Sewers and Manholes
The Contractor shall make all required connections to existing sewers and
manholes and carry out such work in accordance with local standards and
requirements and as directed by the Engineer. Extreme care to prevent debris
from entering existing sewers to by lined shall be exercised.
E. Pipe Lining Materials
1. The liner shall be fabricated to a size which, when installed, will neatly fit the
internal circumference of the conduit specified by the Engineer. Allowance for
circumferential expansion during installation shall be made.
2. The minimum length shall be of a distance to span the distance from the inlet to
the outlet of the respective pipe to be lined. The Contractor shall verify the
lengths in the field before insertion of the liner. The minimum thickness shall be SAR
32.5, which shall be verified by the design calculations of a professional engineer.
The Contractor shall furnish, prior to use of the materials, satisfactory written
certification of his compliance with the manufacture’s standards for all materials
and conformance with the methods of the manufacturer.
F. EXISTING CONDITIONS
1. Inspection
a. Prior to all work of this Section, carefully inspect the area for present
existing conditions.
b. Verify that the sewer liner is to be installed in the strict
accordance with all pertinent codes and regulations, the original design,
the referenced standards and the manufacturer’s recommendations.
2. Discrepancies
a. In the event of discrepancy, immediately notify the Engineer.
b. Do not proceed with installation in areas of discrepancy until all such
discrepancies have been fully resolved.
G. Field Measurements
7­58
Make all necessary measurements in the field to ensure precise fit of items in accordance
with the Drawings.
H. Inspection of Pipe Liner
1. Approvals
No pipe shall be lined without prior notification of the City Engineer or the
Engineer’s representative. Each pipe liner shall be subject to inspection by the
City Engineer or the engineer’s representative immediately before it is installed,
and defective liner will be rejected.
I. Installation of Pipe Liner
1. Installation Procedures
The following installation procedures shall be adhered to unless otherwise
approved by the Owner’s representative.
a. Safety: The Contractor shall carry out his operations in strict accordance
with all OSHA and manufacturer’s safety requirements. Particular
attention is drawn to those safety requirements involving working with
hazardous/combustible materials, scaffolding, and entering confined
spaces.
b. Cleaning of Sewer Line: It shall be the responsibility of the Contractor to
remove all internal debris from the sewer line.
c. Inspection of Pipe Lines: Inspection of pipelines shall be performed by
experienced personnel trained in locating breaks, obstacles, and service
connections by closed circuit television. The interior of the pipeline shall
be carefully inspected to determine the locations of any conditions which
may prevent the proper installation of the liner into the pipeline, and it
shall be noted so that these conditions can be corrected. A video tape
and suitable log shall be kept for later reference by the Owner.
d. Bypassing Flow: The Contractor, when required, shall provide for the flow
around the section of pipe designated for the liner. The bypass shall be
made by plugging the line at an existing upstream manhole and pumping
the flow into a downstream manhole or adjacent system. The pump and
bypass lines shall be of adequate capacity and size to handle the flow.
e. Line Obstructions: It shall be the responsibility of the Contractor to clear
the line of obstructions or collapsed pipe that will prevent the insertion of
the liner. If inspection reveals an obstruction that cannot be removed by
conventional sewer cleaning equipment, then the Contractor shall make
a point repair excavation to uncover and remove or repair the
obstruction. Such excavation shall be approved in writing by the Owner’s
representative prior to the
commencement of the work and shall be
7­59
considered as a separate pay item.
2. Installation of Pipe Liner
The method of installation shall be compatible with the manufacturer’s
recommended practices. For the pipe liner, the installation shall be as follows:
a. The liner pipe shall be inserted into the sewer through existing manholes,
without modification of the manholes.
b.
After insertion is completed, the Contractor shall have equipment
capable of delivering a heat source through the lining section to uniformly
raise the temperature to effect forming of the liner pipe. This temperature
shall be determined by the system employed.
c. The heat source shall be fitted with suitable monitors to gauge the steam
temperature at the input and exhaust ends of the liner. Another device
such as thermocouple shall be placed between the liner and the pipe
invert at the remote manhole to determine the temperature of the liner
material during forming. Heat monitoring methods and forming period
shall be recommended by the liner manufacturer.
d. The liner pipe shall be expanded until it is pressed tightly against the
existing pipe walls.
e. If the liner fails to install properly, the Contractor shall remove the failed
liner and replace it with a new liner. This work shall be performed without
additional cost to the Owner.
f. After the liner has been formed, the ends of the liner shall be cut away at
both manholes.
g. When the installation is complete, the liner pipe shall be continuous over
the entire length of run between two manholes and be as free as
commercially practical from visual defects such as foreign inclusions and
pin holes. It shall also meet the leakage requirements or pressure test
specified below.
h. Any defects which will affect in the foreseeable future or the warrant
period, the integrity or strength of the liner pipe shall be repaired at the
Contractor’s expense. Allowance shall be given for excess pipe (rib)
when the cross­sectional area has been reduced due to offset joints,
partial collapse, out­of­round sections, etc.
3. Sealing Manholes
If, due to broken or offset pipe at the manhole wall, the pipe liner fails to make a
tight seal, the Contractor shall apply a seal at that point. The seal shall be of a
resin mixture compatible with the liner pipe material.
7­60
4. Service Connections
a. The Contractor shall make every effort to maintain service usage
throughout the duration of the project. In the event that a service will be
temporarily out of service, the maximum amount of time of no service
shall be 12 hours for any property served by the sewer. The Contractor
shall be required to notify the City and all affected properties whose
service laterals will be out of commission and to advise against water
usage until the sewer main is back in service. Such notification shall be
provided to the City of Marquette Public Works Department at least 72
hours prior to service disconnecting.
b. Public Notification ­ A public notification program shall be implemented,
and shall as a minimum, require the Contractor to be responsible for
contacting each home or business connected to the sanitary sewer and
informing them of the work to be conducted, and when the sewer will be
off­line. The Contractor shall also provide the following:
­
Written notice to be delivered to each home or business describing the
work, schedule, how it affects them, and the local telephone number
of the contractor they can call to discuss the project or any problems
which could arise.
­
Personal contact and attempted written notice the day prior to the
beginning of work being conducted on the section relative to the
residents affected.
­
Personal contact with any home or business which cannot be
reconnected within the time stated in the written notice.
5. Testing
The Contractor shall provide liner specimens for testing to the Owner after
installation. All expenses for the testing of these specimens will be paid by the
Owner. The cost of re­tests made necessary by the failure of the samples of
specimens to meet the specified requirements shall be paid for by the
Contractor. Testing the water tightness of the liner shall be gauged by hydrostatic
pressure of the equivalent to the maximum depth of the existing sewer pipe
being lined. The test shall last for a minimum of 2 hours and shall show no signs of
leakage. As part of the testing requirement, upon completion of the installation,
a visual inspection shall be performed of the pipe liner in place via a closed
circuit television camera. A video tape (VHS) of the inspection shall be provided
to the Owner.
6. Clean­up
a. The Contractor shall restore or replace all removed or damaged paving,
curbing, sidewalks, gutters, shrubbery, fences, sod or other disturbed
surfaces or structures in a condition equal to that before the work began,
to the satisfaction of the City Engineer, and shall furnish all labor and
7­61
material incidental thereto.
b. Surplus liner material, tools and temporary structures shall be removed by
the Contractor. All dirt, rubbish, and excess earth from operation shall be
legally disposed of by the Contractor, and the construction site shall be
left clean to the satisfaction of the City Engineer.
7. Warranty
The Contractor shall Warrant all work to be free from defects in workmanship and
materials for a period of one year from the date of final completion of all
construction.
8. Patents
The Contractor shall Warrant and save harmless the Owner and his City Engineer
or the Engineer’s representatives against claims for patent infringement and any
loss thereof.
J. Measurement and Payment
Rehabilitation of the existing sanitary sewer by means of slip lining or other approved
methods will be paid for by the lineal meter.
Payment shall be made in full for all labor, equipment and materials required to
complete the job.
Under this contract the work for sewer rehabilitation will be paid for under the item of
work “Pipe Lining, Sanitary Sewer”.
Pay Item
Pay Unit
Pipe Lining, Sanitary Sewer
END OF SECTION
7­62
Foot
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
INTEGRAL COLORED BITUMEN CONCRETE
A. Description
This work shall consist of furnishing and placing bituminous surface course mixture in
accordance with the 2012 MDOT Standard Specifications, as applicable, with modification
to the aggregates and bituminous mixture compositions specified herein. Modification of the
bituminous mixture will be per the manufacturers specifications in order to obtain the
desired colored effect.
B. Materials
1. Aggregates
The aggregate used in the bituminous mixture shall meet the gradation and physical
requirements specified in the 2012 Standard Specifications with any exceptions and
additions specified herein. Colored aggregates may be used in conjunction with the
inorganic pigments to enhance the desired colored effect of the bituminous mixture per the
manufactures specifications.
2. Asphalt Colorant
Inorganic pigments such as iron oxide, chrome oxide, titanium dioxide and mixed phased
pigments are especially suitable for coloring bituminous mixes. Due to the use of dark road
bitumen only the iron oxide red and perhaps, chrome oxide green are suitable as pigments.
This project will require the use of the iron oxide red to obtain the desired colored effect.
Manufacturers of the colorant required for this project are “Asphacolor” by the ASPHACOLOR
CORPORATION, “ Bayferrox 130 C” by BAYER CHEMICALS, or approved equal. Mixing of the
colorant into the bituminous mixture will be done in strict accordance with the manufactures
specifications.
C. Mixing Notice
Because of the variety of asphalt mix designs in different areas of the country it is not possible
to specify an exact mixing formula for optimum use of the bituminous colorant. Contact will
be made with the manufacturer of the colorant product by the Contractor of the hot mix
plant to obtain advice on the mixing formula required to obtain the desired color of the
bitumen concrete. D. Coverage and Preparation of Pavement Surfaces
It is recommended that bitumen concrete colorant, when mixed with hot asphalt, be
installed in at least one inch layers. Existing asphalt should be prepared in a matter consistent
with preparing of asphalt for an overlay. Old asphalt should be cleaned and a tack coat
should be applied prior to installation. Newly placed asphalt (base course) should have a
tack coat applied over it prior to installation to inhibit greater bonding. Pavement surface
7­63
temperatures should be 50° F (10°C) and rising before application of the final mixed produce
is initiated.
E. Cure Time
Cure time is a factor of traffic and current weather conditions. The same procedures that are
used for standard hot mix overlays should be observed. As with standard asphalt hot mix
applications the pavement will fade from a shinny dark surface to a lighter duller surface.
The original color hue will be dark and shinny and will fade into a beautiful earthtone surface
within a one month time period.
F. Measurement and Payment
Integral Colored Bitumen Concrete shall be paid on a per ton basis.
Payment shall be payment in full for all labor, equipment and materials that are required
to produce the desired final product and required to complete the work.
Pay Item
Pay Unit
Integral Colored, Bitum Concrete
END OF SECTION
7­64
Ton
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
SPECIAL PIPE GASKETS
A. Description
This work shall consist of furnishing and placing special gaskets for all watermain piping and
fittings used for this project.
B. Materials
The gaskets required will be either Nitrile (NBR), fluoro carbon gaskets or an approved equal
as required by the Engineer.
C. Measurement and Payment
Payment shall be made in full for all labor, equipment and materials required to complete
the job.
Under this contract the work for installing the special gaskets will be included with the water
main piping or water main fittings.
7­65
END OF SECTION
7­66
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
RESIDENTIAL GARBAGE COLLECTION
A. Description
Contractor shall be responsible for designating centrally located areas for garbage
collection agreed upon by engineer and with assisting residents in getting their garbage to
this location. The Contractor may be required to transport the garbage to the collection
point for the residents. Garbage collection will still occur on the normally scheduled day for
the given neighborhood. Written notification as to the location of the garbage pick up shall
be given to Waste Management, the residents and the Municipal Service Center. All trash
incorrectly placed and not picked up by the collection shall become the property and
responsibility of the Contractor. Garbage collection will not have a separate pay item. It
shall be considered part of project clean­up.
END OF SECTION
7­67
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
PAVEMENT MARKING, INLAY COLD PLASTIC
A. General
This Item shall consist of furnishing and installing the inlay cold plastic pavement markings at
the locations shown on the plans.
B. Materials
Select marking material from the Qualified Products List.
D. Construction
The inlay method involves pressing the marking material into the new warm (138° F to 167° F)
bituminous pavement with a finishing roller. When marking by inlay application method for
cold plastic, the material is required to withstand the pressure of 5 to 10 ton tandem rollers
used to embed the material into the new bituminous surface. The inlay application method
does not require the application of contact cement on the pavement surface.
Transverse and all special markings shall be placed and rolled at least once with a 200 lb
minimum roller prior to the finish rolling. Additional rolling is not required for longitudinal
applications when the equipment installing the line is equipped with a roller. The placed line
shall not vary in width more than 1/8 of an inch. Pavement markings which become
deformed during the inlay process, due to shifting, turning, or twisting, shall be replaced at
the contractor’s expense.
The marking material will be installed full width. The fabrication of markings by the use of
other partial material sections shall not be allowed.
G. Measurement
This Item will be measured by each marking as called out on the plans.
H. Payment
The work performed and materials furnished in accordance with this Item and measured as
provided under "Measurement" will be paid for at the unit price bid. This price shall be full
compensation for furnishing all submittals, labor, materials, traffic control, mobilization,
freight, tools, equipment and incidentals, and for doing all the work involved in placement of
the symbol, complete in place. The skips in dashed lines are not included in the
measurement.
7­68
Pay Item
Pay Unit
Pavt Mrkg, Inlay Cold Plastic,
Lt Turn Arrow Sym
Each
Pavt Mrkg, Inlay Cold Plastic,
Only
Each
Pavt Mrkg, Inlay Cold Plastic,
Thru and Rt Turn Arrow Sym
Each
Pavt Mrkg, Inlay Cold Plastic,
12 Inch, Crosswalk, Ladder
Hatching
Foot
Pavt Mrkg, Inlay Cold Plastic,
24 Inch, Stop Bar
Foot
END OF SECTION
7­69
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
GEOGRID REINFORCEMENT
A. General
This Item shall consist of furnishing and installing geogrid reinforcement in accordance with
the lines and grades shown on the plans.
B. Materials
Structural Soil Reinforcement Geogrid – The geogrid shall be integrally formed and
employed as a single layer having the following characteristics (ALL VALUES ARE
MINUMUM AVERAGE ROLL VALUES UNLESS A RANGE OR CHARACTERISTIC IS INDICATED): Property Test Method Aperture Stability Modulus Kinney ­ 01 at 20 cm­kg Rib Shape Observation Rib Thickness Callipered Nominal Aperture Size I.D. Callipered Junction Efficiency GRI­GG2­87 Flexural Rigidity ASTM D1388­ 96 Minimum True Initial Modulus in Use ASTM D6637­ 01 ­ MD ­ CMD Units Type 1 Type 2 cm­kg/deg 3.2 6.5 N/A Rectangular or Square Rectangular or Square in 0.03 0.05 (mm) (0.76) (1.27) in 1.0 to 1.5 1.0 to 1.5 (mm) (25 to 33) (25 to 33) % 93 93 mg­cm 250,000 750,000 lb/ft 17,140 27,420 (kN/m) (250) (410) lb/ft 27,420 44,550 (kN/m) (400) (620) C. Submittals
1. The Contractor shall submit 3 sets of detailed design calculations, construction drawings,
and shop drawings for approval at least 20 days prior to the beginning of construction.
7­70
The calculations and drawings shall be prepared and sealed by a Professional Engineer,
licensed in the State. Upon approval, the Engineer will make available 1 set of the
drawings to the Contractor. The Contractor shall obtain the approved drawings prior to
commencing construction.
2.Submit geogrid product data sheet and certification from the Manufacturer that the
geogrid product supplied meets the requirements of the characteristics table above.
3. Submit geogrid product samples approximately 4 inches by 7 inches or larger and
consisting of at least 4 entire apertures.
4. Submit Manufacturer's installation instructions and general recommendations.
E. Storage and Protection
1. Prevent excessive mud, wet concrete, epoxy , or other deleterious materials from coming
in contact with and affixing to the geogrid materials.
2. Store at temperatures above ­20 degrees F (­29 degrees C). 3. Rolled materials may be
laid flat or stood on end.
F. Construction Methods
The sub grade shall be prepared as indicated on the plans or as directed by the Engineer.
The geogrid shall be installed in accordance with the lines and grades shown on the plans.
The geogrid shall be oriented such that the roll length runs parallel to the road direction.
Geogrid sections shall be overlapped as indicated on the plans or as directed by the
Engineer. Minimum overlap shall be one (1) foot in both directions. Unless otherwise directed
by the Engineer, plastic ties shall be used at overlaps. The transverse spacing of the ties shall
be 4 to 5 feet and the longitudinal tie spacing shall be 10 to 20 feet, as approved by ­the
Engineer. Placement of the geogrid around corners may require cutting and diagonal
lapping. The geogrid shall be pinned at the beginning of the backfilling section but will be
left free to stretch or relieve tension throughout the remainder of the work area. Fill material
shall be placed in lift thicknesses and compacted as shown on the plans. Tracked
construction equipment shall operate on the grid with a minimum fill cover of six (6) inches.
Turning of equipment shall be gradual and kept to a minimum to avoid damage to the
geogrid. Rubber­tired equipment may operate directly on the grid at speeds less than five (5)
miles per hour if the underlying material is capable of supporting the loads. Sections of
geogrid which are damaged by construction activity shall be repaired or replaced at the
Contractor's expense. All repaired sections shall contain a minimum 3 foot lap in all
directions.
G. Measurement
This Item will be measured by the square yard of surface area as shown on the plans. No
measurement will be made for lapping of material.
7­71
H. Payment
The work performed and materials furnished in accordance with this Item and measured as
provided under "Measurement" will be paid for at the unit price bid for "Geogrid
Reinforcement". This price shall be full compensation for furnishing all submittals, labor, quality
assurance, materials, freight, tools, equipment and incidentals, and for doing all the work
involved in placement of the grid, complete in place.
Pay Item
Pay Unit
Geogrid Reinforcement
Square Yard
END OF SECTION
7­72
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
STAMPED CEMENT CONCRETE PAVEMENT (LANDSCAPE)
A. General
This Section includes cement concrete pavement imprinted as follows:
1.
Colored stamped textured concrete. Cobblestone Random Interlocking
Pattern and cobblestone Stacked Bond.
B. Submittals
1.
Product Data: For each type of manufactured material and product
indicated.
2.
Design Mixes: For each colored stamped concrete pavement mix. Include
alternative mix designs when characteristics of materials, project
conditions, weather, test results or other circumstances warrant adjustment.
3.
Material Certificates: Signed by manufacturers certifying that each of the
following materials complies with requirements:
a. Cementitious materials and aggregates
b. Steel reinforcement and reinforcement accessories.
c. Admixtures.
d. Applied finish materials.
e. Curing compounds.
C. Quality Assurance
1.
Installer Qualifications: An experience installer who has completed
stamped cement concrete pavement similar in material, design, and
extent to that indicated for this Project and whose work has resulted in
construction with a record of successful in­service performance. Installers on
site foreman must have 5 years experience in the above qualifications.
2.
Ready­Mixed Manufacturer Qualifications: Manufacturer of ready­mixed
concrete products complying with ASTM C 94 requirements for production
facilities and equipment.
a.
Manufacturer must be certified according to the National Ready
Mixed Concrete Association’s “Certification Ready Mixed Concrete
Production Facilities Quality Control Manual.”
7­73
3.
Source Limitations: Obtain each type or class of cementitious material
of the same brand from the same manufacturer’s plant and each
aggregate from one source.
4.
Comply with ACI 301, “Specification for Structural Concrete,” unless
modified by the requirements of the Contract Documents.
5.
Concrete Testing Service: testing to be performed by owner’s representatives.
6.
Field­Constructed Mockups: Prior to installation of colored concrete and
stamped concrete paving and curb work, erect sample panels in place to
further verify selections made for color and textural characteristics, under
sample submittals to represent completed concrete paving work for
qualities of appearance, materials and construction; build mock­ups to
comply with the following requirements. Cast a minimum of 8’ x 8’ Mockup
to demonstrate typical joints, surface finish, texture, color and standard of
workmanship. The cost for four (4) mockups shall be included in the price
bid for decorative concrete.
a.
Build mockup in the location and of the size indicated or, if not
indicated, as directed by City Engineer.
b.
Notify City Engineer seven days in advance of dates and times when
mockup will be constructed.
c.
Obtain City Engineer’s approval of mockup before starting
construction.
d.
Maintain mockup during construction in an undisturbed condition as a
standard for judging the completed Work.
e.
The City intends to use mockups for park bench pads and will direct
contractor as to the location of mockups.
Pre­installation Conference: Conduct conference at Project site to comply with
requirements and the following:
Before installing Portland cement concrete paving, meet with representative of
authorities having jurisdiction, OWNER, ENGINEER, consultants, independent testing
agency, and other concerned entities to review requirements. Notify participants at
least three (3) working days before conference.
D. Materials And Products
1.
Available Manufacturers: Subject to compliance with requirements,
manufacturers offering stamped cement concrete pavement systems that
may be incorporated into the work are:
a.
Increte systems or Scofield Company.
b.
Equal Products pre­approved by the Engineer: It shall be the
contractor/manufacturer to provide data and samples required to
7­74
prove that a product/system is equal in quality and color to the Increte
System or Scofield Company. The Engineer shall have the final decision
if a product is approved.
2.
Form Materials: Plywood, metal, metal­framed plywood, or other approved
panel­type materials to provide full­depth, continuous, true and smooth
exposed surfaces.
a.
3.
Use flexible or curved forms that will provide uniform curvature for
curves of a radius of 100 feet or less.
Steel Reinforcement Materials
a.
Reinforcing Bars: ASTMS A 615/A 615M, Grade 60, deformed.
b.
Steel Bar Mats: ASTM A 184/A 184M: with ASTMS A 615/A 615M, grade
60, deformed bars, assembled with clips.
c.
Joint Dowel Bars: Plain steel bars, ASTM A 615/A 615M, Grade 60. Cut
bars true to length with ends square and free of burrs.
d.
Bar Supports: Bolsters, chairs, spacers, and other devices for spacing,
supporting, and fastening reinforcing bars, welded wire fabric, and
dowels in place. Manufacture bar supports according to CRSI’s
“Manual of Standard Practice” from steel wire plastic, or precast
concrete or fiber­reinforced concrete of greater compressive strength
than concrete.
4. Concrete Materials
a.
Portland Cement: ASTM C 150, Type I or II
b.
Fly Ash: AASTM C 618. Type I.
c.
Aggregate: ASTM C 33, uniformly graded with coarse aggregate as
follows:
i. Class 4S
ii. Nominal Maximum Aggregate Size: ¾ inch.
d.
Water: Potable and complying with ASTM C 94.
5.
Admixtures certified by manufacturer to contain not more than 0.1 percent
water­ soluble chloride ions by mass of cement and to be compatible with
other admixtures. Do not use admixtures containing calcium chloride.
a.
Air­Entraining Admixture: ASTM C 260.
b.
Water­Reducing Admixture: ASTMS C 494, Type A.
c.
Water­Reducing and Accelerating Admixture: ASTM C 494, Type E.
7­75
d.
Water­Reducing and Retarding Admixture: ASTM C 494, Type D.
6. Color Materials
7.
8.
a.
Decorative Concrete Dry­Shake Color hardener as manufactured by
Increte Systems/Decorative Concrete Resources or equal: Packaged
dry combination of materials consisting of portland cement graded
quartz aggregate, coloring pigments, and placticizing admixture. Use
coloring pigments that are finely ground nonfading mineral exides
interground with cement. Color to be tile as manufactured by Increte
Systems. Recommended coverage 60 lbs./100 sq. ft.
b.
Release Agent: Dry shake powder to facilitate release of imprinting
tools as manufactured by Increte Systems or equal. Color as selected
by ENGINEER as manufactured by Increte Systems/Decorative
Concrete Resources.
c.
Concrete Integral Color: Pre­weighed and packaged dry high grade
coloring pigment meeting ASTM C979. Color to be C­22 Coral Red for
the Cobblestone Random Interlocking Pattern and C­27 Westwood
Brown for the Cobblestone Staked Bond as manufactured by Scofield
or equal.
Imprinting Tools
a.
Manufacturer: Scofield.
b.
Mat Tools: Tools shall be high quality resilient mats reproduced from
castings of natural materials and providing uniform control of joint
depth.
c.
Patterns to be Cobblestone Stacked Bond and Cobblestone Random
Interlocking Pattern.
Curing and Sealing Materials
a.
b.
9.
Ultra Grip or Shur­Grip: Provide “Shur­Grip” as manufactured by
Increte Systems or equal. Shur­Grip shall be added at one pound
per five gallons of sealer or coating.
Related Materials
a.
10.
Sealer: Provide “Clear Seal” as manufactured by Increte Systems or
equal. Sealer shall be solvent based with acrylic resins. No curing
compound sealers shall be used.
Joint­Filler Strips: ASTM D 1751, asphalt­saturated cellulosic fiber, or ASTM
D 1752, cork or self­expanding cork.
Concrete Mixes
7­76
a.
Prepare design mixes, proportioned according to ACI 211.1 and ACI
301, for each type and strength of normal­weight concrete determined
by either laboratory trial mix or field test data bases.
b.
Use a qualified independent testing agency for preparing and
reporting proposed mix designs for the laboratory trial mix basis.
c.
Proportion mixes to provide concrete with the following properties:
d.
i.
Compressive Strength (28 Days): 3500 psi.
ii.
Maximum Water­cementitious Materials Ratio: 0.45.
iii.
Maximum Slump: 4 inches.
Cementitious Materials: Limit percentage, by weight, of cementitious
materials other than portland cement in concrete as follows:
i.
e.
11.
Fly Ash: 10 percent.
Add air­entraining admixture at manufacturer’s prescribed rate to
result in concrete at point of placement having an air content not
exceeding 6.0 percent.
Concrete Mixing
a.
Ready­Mixed Concrete: Comply with ASTM C 94.
i.
When air temperature is between 85 and 90 deg F, reduce
mixing and delivery time from 1 ½ hours to 75 minutes; when air
temperature is above 90 deg F, reduce mixing and delivery time
to 60 minutes.
D. Execution And Preparation
1.
Pre­Pour Preparation
a.
Lay Out: Carefully lay out form work and joints, taking into
consideration pattern, intended aesthetics, and construction sequence.
Lay out along lines of patterns to run across the normal line of sight
(except where otherwise shown on Drawings).
b.
Proof­roll prepared subbase surface to check for unstable areas and to
verify need for additional compaction. Proceed with pavement work
only after noncomplying conditions have been corrected and
subgrade is ready to receive pavement.
c.
Remove loose material from compacted subbase surface immediately
before placing concrete.
d.
Protect adjacent construction from discoloration and spillage during
application of color hardeners, release agents, curing compounds, and
sealers.
7­77
2.
3.
Edge Forms and Screed Construction
a.
Set, brace, and secure edge forms, bulkheads, and intermediate
screed guides for pavement to required lines, grades, and elevations.
Install forms to allow continuous progress of work and so forms can
remain in place at least 24 hours after placing concrete.
b.
Clean forms after each use and coat with form­release agent to ensure
separation from concrete without damage.
Steel Reinforcement
a.
4.
Comply with CRSI’s “Manual of Standard Practice” for fabricating
reinforcement and with recommendations in CRSI’s “Placing
Reinforcing Bars” for placing and supporting reinforcement.
Joints
a.
General: Construct joints and tool edgings true to line with faces
perpendicular to surface plane of concrete Construct transverse joints
at right angles to centerline, unless otherwise indicated.
b.
Construction Joints: Set construction joints at side and end terminations
of pavement and at locations where pavement operations are
stopped for more than one­half hour, unless pavement terminates at
isolation joints.
c.
i.
Continue reinforcement across construction joints, unless
otherwise indicated. Do not continue reinforcement through
sides of strip pavement, unless otherwise indicated.
ii.
Use bonding agent at locations where fresh concrete is placed
against hardened or partially hardened concrete surfaces.
Isolation Joints: Form isolation joints of preformed joint­filer strips abutting
concrete curbs, catch basins, manholes, inlets, structures, walks, other
fixed objects and where indicated.
i.
Locate expansion joints at intervals of 50 feet, unless otherwise
indicated.
ii.
Extend joint fillers full width and depth of joint, terminating flush
with finished concrete surface, unless otherwise indicated.
iii.
Furnish joint fillers in one­piece lengths for full width being placed
where possible. Where more than one length is required, lace or
clip joint­filler sections together.
iv.
Protect top edge of joint filler during concrete placement with
metal, plastic, or other temporary preformed cap. Removed
protective cap after concrete has been placed on both sides of
joint.
7­78
d.
Dowel Joints: Install dowel sleeves and dowels or dowel bar and
support assemblies at joints where indicated.
i.
e.
Contraction Joints: Form weakened­plane contraction joints, sectioning
concrete into areas as indicated. Construct contraction joints for a
depth equal to at least one­fourth of the concrete thickness, as follows:
i.
f.
Sawed Joints: Form contraction joints with power saws equipped
with shatterproof abrasive or diamond­rimmed blades. Cut 1/8­
inch­side joints into concrete when cutting action will not tear,
abrade, or otherwise damage surface and before concrete
develops random contraction cracks. Saw cut at 3ft.­8in.
Square pattern perpendicular to the architecture as indicated in
the plans and details. All form alignment shall be set to this grid
pattern.
Edging: Tool edges of pavement and joints in concrete after initial
floating with an edging tool to the following radius. Repeat tooling of
edges after applying surface finishes. Eliminate tool marks on concrete
surface.
i.
5.
Use dowel sleeves or lubricate or asphalt­coat one­half of dowel
length to prevent concrete from bonding to one side of joint.
Radius: ¼ inch.
Concrete Placement
a.
Remove snow, ice, or frost from subbase surface and reinforcement
before placing concrete. Do not place concrete on frozen surfaces.
b.
Moisten subbase to provide a uniform dampened condition at the time
concrete is placed. Do not place concrete around manholes or other
structures until they are at the required finish elevation and alignment.
c.
Comply with recommendations in ACI 304R for measuring, mixing,
transporting, and placing concrete.
d.
Deposit and spread concrete in a continuous operation between
transverse joints. Do not push or drag concrete into place or use
vibrators to move concrete into place.
e.
Consolidate concrete with mechanical vibrating equipment. Use
equipment and procedures to consolidate concrete according to
recommendations in ACI 309R.
f.
Screed paved surfaces with a straightedge and strike off. Start initial
floating using bull floats or darbies to forma uniform and open­textured
surface plane before excess moisture or bleedwater appears on the
surface.
7­79
i.
g.
Cold­Weather Placement: Comply with ACI 306.1. Protect concrete
work from physical damage or reduced strength that could be caused
by frost, freezing actions, or low temperatures.
i.
h.
Do not further disturb concrete surfaces before starting finishing
operations or spreading dryshake surface treatments.
Do not use calcium chloride, salt, or other materials containing
antifreeze agents or chemical accelerators, unless otherwise
specified and approved in mix designs.
Hot­Weather Placement: Place concrete according to
recommendations in ACI 305R and as follows when hot­weather
conditions exist:
i.
Cool ingredients before mixing to maintain concrete
temperature below 90 deg F at time of placement. Mixing
water may be chilled or chopped ice may be used to control
temperature, provided water equivalent of ice is calculated to
total amount of mixing water. Using liquid nitrogen to cool
concrete is Contractor’s option.
ii.
Cover steel reinforcement with water­soaked burlap so steel
temperature will not exceed ambient air temperature
immediately before embedding in concrete.
iii.
Fog­spray forms, steel reinforcement, and subgrade just before
placing concrete. Keep subgrade moisture uniform without
standing water, soft spots, or dry areas.
6. Initial Concrete Finishing
a.
General: Wetting concrete surfaces during screeding, initial floating, or
finishing operations is prohibited.
b.
Float Finish: Begin the second floating operation when bleedwater
sheen has disappeared and the concrete surface has stiffened
sufficiently to permit operations. Finish surfaces to true planes. Cut down
high spots and fill low spots. Immediately refloat surface to uniform
granular texture.
c.
Colored Dry­Shake Hardener Finish: After initial floating, apply colored
dry­shake material to plastic concrete surfaces according to
manufacturer’s written instructions and as follows:
i.
Uniformly apply at a rate of 60 lb/ 100 sq. ft. unless greater
amount is recommended by manufacturer to match pavement
color.
ii.
Distribute approximately two­thirds of colored dry­shake material
and embed by floating. Follow with a second application of
7­80
colored dry­shake material distributed at right angles to the first
to ensure uniform color, and embed by floating.
d.
Colored­Powder Release Agent: Uniformly distribute onto color­
hardened and still­plastic concrete at a rate of 1 to 2 lb/100 sq. ft.
7. Stamping
a.
While initially finished concrete is plastic, accurately align and place
stamp "skins" or semi rigid mats in sequence and changing direction of
pattern to avoid visible repeats of pattern over entire area. Uniformly
load mats and press into concrete to produce required imprint pattern
and depth of imprint on concrete surface. Remove stamp mats
immediately. Hand stamp edges and surfaces unable to be imprinted
by stamp mats, including step risers and treads.
b.
Remove unembedded release agent as directed by manufacturer.
High pressure wash surface and joint patterns, taking care not to
damage stamped concrete. Control, collect and legally dispose of
runoff.
8.
Concrete Protection, Curing, and Sealing
a.
General: Protect freshly placed concrete from premature drying and
excessive cold or hot temperatures. Comply with ACI 306.1 for cold­
weather protection, and follow recommendations in ACI 305R for hot­
weather protection during curing.
b.
Evaporation Retarder: Apply evaporation retarder to concrete surfaces
if hot, dry, or windy conditions cause moisture loss approaching 0.2
lb/sq. ft. x h before and during initial finishing operations. Apply
according to manufacturer’s written instructions after placing and
screeding and during initial floating operations.
c.
Sealer: Apply uniformly in two coats in continuous operations according
to manufacturer’s written instructions. Allow first coat to dry before
applying a second coat.
9. Pavement Tolerances
a.
Complying with the following tolerances:
i.
Elevation: ¼ inch.
ii.
Thickness: Plus 3/8 inch, minus ¼ inch.
iii.
Surface: Gap below 10­foot­long, unleveled straightedge not to
exceed ¼ inch.
iv.
Lateral Alignment and Spacing of Dowels: 1 inch.
v.
Vertical Alignment of Dowels: ¼ inch.
7­81
vi.
Alignment of Dowel­Bar End Relative to Line Perpendicular to
Pavement Edge: Length of dowel ¼ inch per 12 inches.
10.
vii.
Joint Spacing: 3 inches.
viii.
Contraction Joint Depth: Plus ¼ inch, no minus.
ix.
Joint Width: Plus 1/8 inch, no minus.
Removal and Protection
a.
Remove and replace pavement that does not comply with
requirements in this Section.
b.
Protect pavement from damage. Do not permit construction traffic on
concrete pavement. Exclude other traffic from pavement for at least 28
days after placement.
c.
Maintain pavement free of stains, discoloration, dirt, and other foreign
material. Sweep pavement not more than two days before date
scheduled for Substantial Completion inspections.
E. PAYMENT
Payment shall include full payment for all work described in this Section. This price shall be
for full compensation for furnishing all submittals, labor, quality assurance, mock ups
materials, stamping, coloring, finishing, addition of Shur­Grip, steel reinforcement, weather
protection, freight, tools, equipment and incidentals, and for doing all the work involved in
placing the “Stamped Cement Concrete pavement”.
Payment shall be made on the following basis:
Pay Item
Pay Unit
Colored, Conc, Stamp, 4 Inch
Colored, Conc, Stamp, 6 Inch
7­82
Sft
Sft
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
PEDESTRIAN TRAFFIC MAINTENANCE
A. General
The purpose of this supplemental specification for construction in the public right­of­way is to
ensure pedestrian safety and access. This work under this contract shall be completed so as
to maintain uninterrupted pedestrian traffic to all residential and business establishments
within the construction influence area (C.I.A.). In the event the sidewalk or roadway at the
entrance or fronting the establishment is removed, access shall be maintained so as to safely
maintain pedestrian traffic in both directions.
B. Maintenance and Accessibility
·
·
An accessible pedestrian corridor shall connect with facilities throughout the
project.
Equipment, debris, construction materials or vehicles shall not obstruct the corridor
except for those times excavation is required for construction of the utility. At such
times an alternate route will be maintained for access.
C. Construction of Barricades and Fencing
·
·
Barricades and/or fencing that are impenetrable shall be used to separate
pedestrians from hazards on all sides of the excavations that may be exposed to
pedestrians.
Caution tape shall NOT be used by itself to delineate the path of travel or create a
barricade.
D. Surfacing of Pedestrian Corridors
·
·
·
During construction, tripping hazards and barriers for pedestrians must be removed
to maintain the pedestrian corridor.
Any change of level along the pedestrian corridor that exceeds ½ inch in height,
must be beveled at 45 degrees.
Closed trenches, areas of removed sidewalk or ramps, etc. shall have a smoothly
finished, firm walking surface made even with the surrounding walkway or created
walkway.
If at any time hazardous conditions exist the City Engineer may stop work until the situation is
made safe for pedestrian access. Failure to make safe these areas after repeated discussion
will result in the city of Marquette Public Works Department doing these repairs with the cost
of making such repairs being deducted from the contract.
7­83
The Contractor shall supply to the Engineer, for approval, a plan and procedure for
maintaining uninterrupted pedestrian traffic before beginning construction. Measurement
and payment shall be made under the pay item “Pedestrian Traffic Maintenance” as a lump
sum item.
Pay Item
Pay Unit
Pedestrian Traffic Maintenance
END OF SECTION
7­84
LS
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
STREAM BED COBBLES
A. General
This work shall consist of supplying and placing cobble material to line the bottom of the
proposed channel, in accordance with the typical section shown on the plans.
B. Material
Stream Bed Cobbles shall consist of unbroken clean natural granite aggregates, free of
deleterious materials, and shall meet the following gradation requirements:
Material:
Stream Bed Cobbles
Sieve Analysis (ASTM C136)*
Total Percent Passing _
8”
6”
4”
80­95% 60­70% 50%
1 ½”
1"
½”
45­50% 15­30%
3/8" No.4
0­4%
Physical Properties
Crushed Loss
No.30 No.100 Mat’l
by wash 100%
0%
1%
* Stream bed cobbles may be created by a 50% mixture of rounded stones evenly sized from
2” to 8” size with a 50% mixture of MDOT 6A stone. Contractor shall provide a sieve analysis of
the 6A stone and arrange for the visual inspection of 2” to 8” material by the Engineer for
approval.
C. Construction Methods
The material shall be placed to a uniform depth as shown on the plans and typical section
and shall be compacted to provide a tightly integrated bottom cobble layer for the
proposed channel.
D. Measurement and Payment
The completed work, as measured for Stream Bed Cobbles, shall be by the Square Yard for
material of the depth indicated on the plans. Payment shall include the placement of fabric
under the Cobble material.
Pay Item
Pay Unit
Stream Bed Cobbles
Syd
7­85
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
STORM WATER TREATMENT UNIT
A. General
This work includes furnishing and installing two, underground storm water treatment units
complete with bypass manhole system as shown on the plans and specified herein.
B. Materials
The storm water treatment unit #1 shall be an underground unit meeting the following
requirements.
1. Capable of handling a minimum of 2.8 cfs of storm water flow, without
releasing previously captured pollutants.
2. Contain a sump with a minimum size of 1.2 cyd.
3. Unit must be capable of removing all floating litter.
4. System must be designed to bypass a flow over 2.8 cfs and not release
already captured pollutants.
5. The unit shall contain oil absorbent material capable of capturing 80% of
a 5mg/L concentration of oil and grease annually from runoff.
6. Shall be designed to handle H20 traffic and earth loadings.
7. Treatment unit shall not have a height greater than 8’ including sediment
storage area.
8. Direct easy access opening of at least 3 square feet shall be supplied for
clean out of sediment, floatables and oil and grease.
9. Treatment unit shall remove at least 85% of particle size 150 micron at
50% peak operating flow.
Stormwater Treatment Unit shall be Vortechs System Model 2000 as manufactured by
Vortechnics or Engineer approved equal.
The storm water treatment unit #2 shall be an underground unit meeting the following
requirements.
1. Capable of handling a minimum of 11 cfs of storm water flow, without
releasing previously captured pollutants.
2. Contain a sump with a minimum size of 4 cyd.
3. Unit must be capable of removing all floating litter.
4. System must be designed to bypass a flow over 11 cfs and not release
already captured pollutants.
5. The unit shall contain oil absorbent material capable of capturing 80% of
a 5mg/L concentration of oil and grease annually from runoff.
7­86
6. Shall be designed to handle H20 traffic and earth loadings.
7. Treatment unit shall not have a height greater than 8’ including sediment
storage area.
8. Direct easy access opening of at least 3 square feet shall be supplied for
clean out of sediment, floatables and oil and grease.
9. Treatment unit shall remove at least 85% of particle size 150 micron at
50% peak operating flow.
Stormwater Treatment Unit shall be Vortechs System Model 7000 as manufactured by
Vortechnics or Engineer approved equal.
C. Construction Methods
Units shall be installed in accordance with manufacturer’s instructions.
The unit shall be backfilled in accordance with Section 403 of the MDOT 2012 Standard
Specifications of Construction Class III granular backfill.
D. Measurement and Payment
Payment for this item will be considered payment for each unit and accompanying manhole
bypass system installed in accordance with the plans and specifications. Each unit includes
(2) manholes, pipe, excavation, installation, storm sewer connections, backfill and
compaction.
Pay Item
Pay Unit
Storm Water Treatment Unit
7­87
Each
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
DEWATERING (WELL POINT SYSTEM)
A. DESCRIPTION
1. Scope of Work
This Section includes all dewatering work for construction of all related items for excavation,
backfill, embankment, sewer, water main, sanitary sewer and all other utilities, complete
with design of dewatering systems, construction and operation of dewatering systems,
abandonment of dewatering systems, protection of personnel and structures, environmental
protection and restoration.
B. QUALITY ASSURANCE
1. Design of Dewatering Construction
The Contractor shall be responsible for the complete design of all structures and methods
proposed for dewatering the project site, including the implementation of all materials, tools
and equipment proposed for use in the work. Temporary wiring associated with the
dewatering shall comply with applicable portions of the National Electrical Code.
2. Requirements of Regulatory Agencies
a. Soil Erosion and Sedimentation Control
All dewatering systems design and construction shall conform to the provisions of the "Soil
Erosion and Sedimentation Control Act of the State of Michigan Act 347; PA of Michigan;
1972." Where applicable, the Contractor shall obtain and pay for all permits and inspections
for dewatering construction in accordance with the provisions of PA 347, State of Michigan,
1972, and all local government agencies having jurisdiction. No additional claim for
compensation shall be allowed because of the Contractor's failure to obtain or pay for such
permits and inspections.
b. Federal, State and Local Regulations.
Dewatering operations shall conform to the requirements of all federal, state, and local
agencies having jurisdiction.
C. JOB CONDITIONS.
7­88
1. Protection.
The Contractor shall take all steps necessary, during the work of this Section, to protect
surrounding property and adjacent buildings, private water supplies, roads, drains, sewers,
structures and appurtenances. Adequate measures shall be taken to protect such property
and construction from the effects of the dewatering operations.
D. EXECUTION
1. CONTRACTOR'S VERIFICATION
a. Existing Drainage Conditions
Prior to beginning any work, the Contractor shall field verify the location, type and capacity
of all existing drainage facilities and conditions which will affect the work of this Section. No
allowances shall be made for conditions found during the progress of the dewatering
operations because of the Contractor's failure to verify such conditions.
b. Existing Structures and Utilities
The Contractor shall make field verification of all existing structures and utilities at the site of
the work which are scheduled to remain and which may be affected by the work of this
Section. The Contractor shall be responsible for any damage to existing structures and/or
utilities caused because of his work and shall repair such damage at his expense to the
satisfaction of the
Engineer.
E. PERFORMANCE
1. Drainage of Excavations
The Contractor shall maintain all excavation work free of water during and until completion
of the work. All dewatering west of station 11+50 shall be discharged into the sanitary sewer
near station 4 + 50. All dewatering west of Station 11+50 shall be done on the south side of
the utilities being placed. The maximum length of the trench to be dewatered will be 300
feet or as detailed in Chapter 5.03 in Construction Phasing. Dewatering elsewhere in the
project shall discharged as described throughout the rest of this special provision. No unit of
work shall be constructed under a wet trench bottom except as otherwise directed by the
Engineer. Provide and maintain adequate dewatering equipment to remove and dispose of
all surface or groundwater entering excavations trenches or other parts of the work. Each
excavation shall be kept dry during subgrade preparation and continually thereafter until
the construction is complete. All excavations which extend down to or below the static
groundwater elevation shall be dewatered by lowering and maintaining the groundwater
level beneath such excavations at a distance of not less 12 inches below the bottom of the
excavation or as directed by the engineer. Drainage system methods shall not cause any
damage to wells or adjacent property. All outlet drainage piping and conduit shall be kept
and free from sediment. The Contractor shall be held responsible for the condition of all
pipes, conduits and structures which he may use for drainage.
7­89
2. Dewatering Sumps and Pump Wells
Sumps and pump wells used as part of the dewatering system shall be strongly sheathed and
braced to protect the construction while in use. Tops of well casings must be covered to
prevent animals and debris from entering and shall be 2 to 3 feet above ground. Sumps and
wells, when abandoned, shall backfilled and compacted to the satisfaction of the Engineer.
3. Drilling
Methods used in drilling wells associated with dewatering systems shall be the responsibility of
the Contractor and shall be acceptable to the Engineer. Drilling methods shall insure proper
placement of well materials and shall not involve displacement of earth formations. Drilling
shall be done with first class equipment of proper type and in good condition, acceptable to
the Engineer.
4. Pumping
Equipment for pumping and pumping methods associated with dewatering systems shall be
the responsibility of the Contractor and shall be acceptable to the Engineer. The Contractor
shall construct or furnish adequate discharge piping to conduct and dispose of the water so
as to prevent damage to existing structures or property. Pumping equipment shall be first
class, acceptable to the Engineer, of proper type and size for the work and in good
condition. The Contractor shall provide all anchors and supports for pumping equipment.
5. Filling and Grading
Upon completion of dewatering work for the project, abandon and/or fill all holes, trenches,
ditches and other earth excavations created by the work of this Section and not scheduled
to remain. Do all filling, backfilling and grading to restore excavations and earth banks to the
lines and levels indicated on the Plans and as directed by the Engineer. All earth fills shall be
compacted to a density equal to that of the surrounding undisturbed earth or as specified.
F. MEASUREMENT AND PAYMENT
The pay item "Dewatering (Well Point System)" shall be paid for by lineal feet and shall be
measured per length of right­of­way width. Therefore, there will be no duplicate payment for
dewatering of different utilities running parallel to each other, but rather one payment made
for dewatering all utilities as necessary per width of the entire right­of­way. Payment at the
contract unit price shall be full compensation for all tools, materials, equipment, labor, and
all other included items of work required to install, maintain, operate and the removal of the
dewatering system and operations.
Pay Item
Pay Unit
Dewatering (Well Point System)
7­90
Foot
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
POLYETHYLENE WRAP FOR WATER MAIN
A. GENERAL
This Item shall consist of furnishing and installing polyethylene wrap around the water main
and its appurtenances as described herein.
B. MATERIALS
1. POLYETHYLENE WRAP
Poly­wrap shall be continuous tubing formed from 8­mil (0.2­mm) thick virgin colored
polyethylene, in accordance with AWWAC105. Minimum polyethylene tube size shall be as
follows:
Minimum Polyethylene Width Inch
Nominal Pipe
Flat Tube
Diameter Inch
3
4
6
8
10
12
14
16
14
16
20
24
27
30
34
37
Adhesive tape shall be a general­purpose polyethylene adhesive tape, 2­inches (50­mm)
wide and at least 8 mil (0.2mm) thick.
2. MASTIC AND TAPE
A.
B.
Mastic and tape shall be compatible in all respects.
Mastic shall be Protecto­Wrap Co. "CA­160 Mastic," Tapecoat Co. "TCMastic," or
equal.
C. Pipeline tape shall have 6­mil (0.15­mm) polyethylene backing and approximately
0.030 inch (0.8mm) of butyl­base mastic adhesive. Polyken "930­35," Protecto­Wrap
Co. "310," Tapecoat Co. "Type TC," or equal.
7­91
F. CONSTRUCTION METHODS
1. Wrapping of Underground Pipe
Ductile­iron pipe to be installed in a trench shall be protected in the following manner.
Each pipe joint shall be covered with an eight (8) mil thick polyethylene sleeve that is two
(2) feet longer than the pipe joint. The sleeve shall cover the full length of the pipe joint,
lap over one (1) foot on each end of the adjoining pipe joints, and be secured with a
minimum of two circumferential turns of pressure sensitive polyvinyl tape. Excess material
should be neatly drawn up around the pipe barrel, folded into an overlap on top of the
Pipe, and held in place by means of pieces of pressure sensitive tape at
approximately five­foot intervals. After assembling the joint, the polywrap tube from the
previously installed pipe shall be pulled over the joint and secured by the Contractor. The
polywrap tube from the new joint shall be pulled over the first tube and secured by the
Contractor to provide a double seal.
Cast­iron and Ductile­iron fittings and valves shall be completely wrapped in eight (8) mil
thick polyethylene film with a minimum of one (1) foot overlap on each end and
appropriately taped. Laps shall cover joints with adjoining pipe joints or fittings when
installed. Fire Hydrant barrel from the surface to the valve shall be wrapped as specified
herein.
Any damaged areas in the polyethylene film shall be repaired by covering the area with
a sheet of polyethylene film large enough to lap over the damaged area one (1 ') foot
minimum in any direction and appropriately taped. Extreme care shall be taken at
service tap locations to insure that the tape extends beyond the corporation and onto
the service line pipe one foot.
Prior to placing pipe in the trench, a cushion of approved materials shall be placed in the
trench as detailed in the MDOT Road & Bridge Standard Plans, R­83­B, "Utility Trenches”.
Backfill material shall be carefully placed on the pipe so as to avoid any damage to the
polyethylene sleeve. The contractor shall use care to protect and preserve the
polyethylene wrap around ductile iron water mains when installing service corporations.
The required method is to wrap pipe tape around the pipe over the polywrap in the area
to be tapped. The tap is to be made through the tape and polywrap. It is not necessary
to remove and replace poly wrap. All exposed pipe, the corporation, and the first three
feet of the service shall be wrapped and taped to achieve a complete seal. In addition,
a sand envelope shall extend over and around the connection to a depth of eight
(8) inches above the main.
2. Protective Coating on Joints
All bolts and nuts destined for underground service on valves, fire hydrants, cast­iron
mechanical joint fittings, pipe joints, and other ferrous metal appurtenances shall be
packed in an approved protective coating material after installation. After the joint has
been made and bolts drawn to the proper tension, the joint including glands, flanges,
bolt heads, bolts and nuts shall be covered in a protective coating material to a
minimum thickness of ½ inch over all surfaces. Such protective coating shall be
7­92
incidental to wrapping the piping with polyethylene wrap.
Talcote shall not be used.
Asphaltic material such as
Coating and wrapping of joints will be considered incidental to the installation, and no
separate payment will be made for this item.
G. MEASUREMENT
This Item will be measured by the lineal foot of water main piping as shown on the plans. No
measurement will be made for lapping of material.
H. PAYMENT
The work performed and materials furnished in accordance with this Item and measured as
provided under "Measurement" will be paid for at the unit price bid for "Polyethylene Pipe
Wrap". This price shall be full compensation for furnishing all submittals, labor, quality
assurance, materials, freight, tools, equipment and incidentals, and for doing all the work
involved in placement of the wrapping and protective coating of all water main, fittings, etc.
Pay Item
Pay Unit
Polythylene Pipe Wrap
7­93
Foot
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
BYPASSING EXISTING SANITARY SEWAGE FLOWS
A. DESCRIPTION
The work under this section consists of providing all planning, coordination, and operations
pertaining to the bypass pumping and/or bypass line installation of sewage flows around
those portions of the sewage facilities to be rehabilitated, reconstructed or realigned. The
existing flows include those from any upstream collection system components that
contribute to the subject sanitary sewer mains or manhole facilities. Emergency
contingency plans will be submitted to the Engineer for approval.
B. CONSTRUCTION METHODS
The sewage flows shall be bypassed around that section(s) of pipe designated for
rehabilitation, reconstruction or realigned on an as­required basis. The Contractor shall
ensure the pumps and bypass lines are of appropriate capacity and size to accommodate
the anticipated sewage flows during the duration of all operations requiring such bypass. The
estimated domestic flow data for each run will be provided by the Waste Water Department
located off of U.S. 41 in south Marquette. However, the Contractor is cautioned that these
estimated flows do not include contributions from any infiltration or inflow that may exist at
the time of the Work. The Contractor’s pumping system capacity shall make appropriate
allowances for such additional flows.
The Contractor shall notify the occupants of any affected structure or affected area, in
writing, at least 48­hours in advance, of any scheduled sanitary sewer service
interruption. Services affected shall not be interrupted more than eight (8) consecutive hours
or more than once in a twenty­four­ (24) hour period. Under no circumstances shall the
Contractor allow the discharge of sewage into the existing storm drain system or onto the
ground. No excavation will be permitted to facilitate this Work, except as indicated on the
Drawings.
Prior to construction, the Contractor shall submit to the Engineer a plan detailing the
scheduled deployment of pumps and/or bypass piping and other equipment necessary to
maintain sewage flows during construction. The pumping system shall be such that the
hydraulic gradient both upstream and downstream of the piping being bypassed will
not reach elevations that will cause damage to the properties being served. This will require
that the Contractor closely calculate the elevation of the upstream head needed to
actuate the pumping cycle and the rate of discharge flow from the pumps. The Contractor
will keep in close contract with the City of Marquette Wastewater Plant for monitoring of all
7­94
upstream system pumping facilities that may be affected due to a shut down of a sanitary
force main system. The Contractor shall be liable for all damages which result from sewage
flows not properly maintained during the progress of the Work, including all damages to
private or public property which occur as a direct or indirect result of inadequate
control of the sewage flow while the sewage bypass operation is ongoing. The Contractor is
reminded that after­hours pumping will require additional sound proofing so as to minimize
noise levels.
C. SPECIAL CONSTRUCTION METHODS ­ SITE SPECIFIC
Bypass line installation will include the installation of a tapping­in­valve on each side of the
“Line Stops” and the installation of eight (8) inch ductile iron piping, fittings, etc., that will be
required to bypass the proposed realignment of the sanitary sewer force main. Upon
completion of the lowering of the sanitary sewer force main the tapping­in­valves will be
closed and a plugged. A emergency contingency plan will be submitted by the Contractor
and approved by the Engineer in case of a construction mishap that would require the
immediate removal of sewage either in the excavation site or at the sewage lift station wet
well. Materials, sewer vac trucking and personnel will be available on site
to respond and implement the contingency plan.
D. MEASUREMENT
Bypass of existing sewage flows will be paid for on a lump sum basis.
E. PAYMENT
Payment shall include full payment for all Work described in this Section. This price shall be
for full compensation for furnishing all submittals, labor, quality assurance, materials, freight,
tools, equipment and incidentals, and for doing all the work involved in bypassing the
existing sanitary sewer force main. Coordination with the Waste Water Department will be
incidental to this item of work as well as the submitting of the emergency contingency plan.
Payment for all materials, equipment, personnel, etc., to have on site and implement if
necessary, the emergency contingency plan will be incidental with the payment of the
“Bypassing Existing Sanitary Sewage Flows” pay item.
Payment shall be made on the following basis:
Pay Item
Pay Unit
Bypassing Existing Sanitary Sewage Flows
7­95
Lump Sum
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
LINE STOPPING
A. GENERAL
Provide line stops on existing water mains and/or force mains in the locations identified in the
specifications and as shown on the Drawings to provide temporary hydraulic isolation of flow
and pressure in the piping system.
B. SUBMITTALS
1. Product Data:
a. Name, address and phone number of subcontractor (as applicable) proposed to
perform the line stopping work.
b. Written procedures intended to be used for line stopping work.
c. Product data on the line stop fitting(s) equipment and devices intended for use in
completing the line stop work.
d. Submit in accordance with Chapter 5 Special Provision Section 5.19.
C. QUALITY ASSURANCE
1. Experience Requirements:
CONTRACTOR or subcontractor performing the line stop work shall have not less than
five (5) years experience in performing line stops with not less than ten (10) line stop
installations successfully completed in that time period. CONTRACTOR shall
furnish OWNER with documentation certifying said experience.
2.
Manufacturer Representative:
Installation of line stops will require the manufacturer’s representative to be present
at the site during the placement of said lines stops.
3. Responsibility:
CONTRACTOR shall be responsible for determining the type, size, outer diameter of
pipeline to be line stopped. CONTRACTOR shall be responsible for ensuring
compatibility between the line stop fittings and the existing pipeline.
4. Definition of successful shutdown:
7­96
A satisfactory shutdown of a water main, force main, or pipeline shall be
accomplished by the line stopping process. Said process is defined as one which
allows the required work (interconnection of new water mains or force mains to the
existing pipeline) to be performed. A satisfactory shutdown does not require a drip
tight shutdown. A satisfactory shutdown is defined as a shutdown that allows a rate of
leakage out of the water main or force main that does not exceed the rate of 5
gallons per minute and which allows the interconnection of new water mains or force
mains to be connected to the existing pipeline. The Contractor will have a set plan of
action to deal with any sewage that may leak through the line stop. Plan of action
will include alternate ways of sewage removal from the excavation site. At no time
will sewage be allowed to enter Lake Superior.
D. PRODUCTS
1. Tie­ins to certain wastewater force mains within the project must be accomplished by
first hydraulically isolating the flow and pressure in the piping system.
For
CONTRACTOR’S information, the existing force mains intended to be line stopped
under this project operate at normal internal pressures of less than 24 psig
CONTRACTOR shall furnish and install line stops on the pipelines in the locations shown
on the Drawings. Said line stops shall be performed with the force mains in­service and
shall not require draining of the force main. Line stops shall also permit the installation
of new valves, fittings, and additional piping on the non­pressure side of the line stop.
2. Existing Pipe Materials: At the location(s) where the line stops are to be made, the
materials and class of pipe line being line stopped are unknown to OWNER.
Contractor is further advised that the condition and degree of tuberculation of the
internal and external surfaces pipe lines in question are unknown to OWNER. Prior to
initiating the line stopping work, CONTRACTOR shall perform exploratory excavations of
the pipe line to be line stopped, to verify the pipeline data. At the time of initiating the
line stop work, CONTRACTOR shall have on­site and be prepared to install the fittings for
fitting both class AB and CD cast iron or ductile iron pipe plus that required of various
PVC pipe types. In addition, CONTRACTOR shall have on­site and be prepared to
install the line stop fittings to fit one size larger and one nominal size small than the size
line stop shown on the Drawings.
3. Number of Line Stops: Unless otherwise indicated within the specifications or on the
Drawings, furnish and install a single line stop fitting. Just prior to initiating the line stop
work, CONTRACTOR shall close the nearest adjacent valve on both side of the line stop,
so that the line stop is required to withstand flows having velocities of less than 0.5 feet
per second.
4. All lines stop fittings shall be shop coated carbon steel split sleeves with a female closure
flange securely attached by studs and nuts or welding to the nozzle of the upper half of
the sleeve. The line stop fitting for mains up to and including 8­inch diameter shall be
constructed of Type 304 stainless steel and having a minimum 16 gauge wall thickness.
The saddle bolts and nuts utilized on the line stop fitting shall be of high­strength cast or
ductile iron conforming to AWWA C111. The flange bolts and nuts utilized on the line
stop fitting shall be of zinc­coated carbon steel meeting ASTM A­307, Grade B.
7­97
5. The full encirclement saddle gasket for the line stop fitting shall be of an elastomeric
compound that is compatible with the fluid within the pipeline and which can perform
its sealing function over a range of –40 degrees F to 150 degrees F.
E. CONSTRUCTION METHODS
Line stops shall be completed during the day of the week and the time of day permitted
by OWNER. CONTRACTOR is advised that overtime labor costs for performing line stops
during overtime hours shall be included in the lump sum bid price.
All line stops shall be performed in one trip. Repeated return trips required for any reason on
the part of CONTRACTOR or his/her subcontractor shall be provided at no additional cost to
OWNER.
CONTRACTOR shall excavate for, expose, and clean the pipeline to be line stopped.
CONTRACTOR shall provide sufficient clearances to install the line stopping equipment and
to provide a safe working condition. CONTRACTOR shall install line stop in the location shown
on the Drawings, but may make minor OWNER­authorized adjustments to the location to
avoid pipe joints, corporation stops, air release valves, repair sleeves and other irregularities
that may interfere with the work. CONTRACTOR shall provide concrete reaction blocks or
timber blocks under the line stop fitting as needed to perform the work.
The line stop shall be placed in the top vertical position unless site conflicts prohibit such a
location. Prior to assembly around a water main or sewage force main, the line stop’s gasket
sealing surfaces shall be thoroughly coated with Permatex No. 2 sealing compound. All
fasteners shall be tightened in accordance with the fitting manufacturer’s instructions.
The line stop cutting equipment shall be thoroughly disinfected prior to starting the pressure
tap. The line stop sealing element shall be free from cuts, nicks, or other surface defects that
could prevent a satisfactory shutdown of the water main.
After assembly, the line stop fitting and valve shall be pressure tested to 140 psi. The pressure
plug on the line stop may be either the expanded rubber stopper type, the cup type
plugging head or the steel wedge stopper and when lowered into the main, shall seal itself
against the interior of the pipe to shutdown passage of flow.
CONTRACTOR shall provide pressure equalization and purge fittings for blow down and re­
pressurization. Said fittings shall be provided at not less than 18­inches away from the edges
of the line stop fitting.
Upon completion of the line stop and new valves, fittings and tie­ins, remove the tapping
machine, and furnish and install a closure plug then a permanent blind flange on the line
stop fitting. Backfill the line stop excavated area.
E. MEASUREMENT AND PAYMENT
7­98
Line Stop installation will be incidental with the item of work, “____________________”
This will be for full compensation for furnishing all submittals, labor, quality assurance,
materials, freight, tools, equipment and incidentals, and for doing all the work involved in
placement of the Line Stops in relation for lowering the sanitary force main.
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
REMOVING UNENCASED RAILWAY TRACK
A. General Description
The unencased railway track along the abandoned railroad right­of­way between Union
Street right­of­way extended and Hawley Street shall be removed in its entirety. All materials
to be salvaged such as; ties and rails shall be safely stockpiled on railroad property and/or as
directed by the city engineer on the nearby City of Marquette property on the Old Cliff Dow
Site.
Wisconsin Central Ltd. will furnish a person to act as a consultant to advise the contractor on
removal procedures. Failure to follow proper procedures during the removal process which
results in damage of the material being salvaged will result in the contractor being required
to replace, repair or reimburse the owner for the item damaged.
Items not planned to be salvaged shall become the property of the contractor and
removed from the site.
More information concerning track removal can be obtained from Mr. Ralph Spakowicz at
(715) 345­2516 or Mr. Scott Woodward at (906) 630­5562.
1. Measurement and Payment
“Track, Unencased Railway, Remove” shall be paid by the foot. Such payment
shall be payment in full for removal and salvage of the ties and rails and removal
and disposal of other incidental items.
Pay Item
Pay Unit
Track, Unencased Railway, Remove
7­99
Foot
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
MISCELLANEOUS METALS
A. General
Work included: All miscellaneous metal work includes handrails, anchor bolts, signs, etc.
required for completion of project. Provide all required miscellaneous metal and steel work
not specified under other sections of these Specifications. Include materials and parts
necessary to complete or fasten each item, even though not definitely shown or specified.
B. Quality Assurance
1. Use adequate numbers of skilled workmen who are thoroughly trained and
experienced in the necessary crafts and who are completely familiar with the
specified requirements and the methods needed for proper performance of the
work of this Section.
2.
Qualify welding processes and welding operators in accordance with AWS
“Standard Qualification Procedures”.
3. Use clean steel free from rust.
4. Shop prime all steel and steel assemblies.
5. Shop Drawings: Submit for all steel fabrications.
C. Materials
1. Handrails and beam connections to be constructed of A­36 or better steel to
conform to the details shown on the Drawings or as on approved shop drawings
as submitted by the Contractor. Grind all exposed welds smooth for shop priming.
2. Other Steel: Fabricate from A­36 or better steel to conform to details.
D. Installation
1. Use certified welders, only.
2. Grind welds where required for proper fit of other material.
E. Measurement and Payment
7­100
1. All items in this section will be paid for under the Lump Sum bid pay item
“Welcome Sign”.
2. Payment shall be payment in full for all labor, equipment, and materials required
to complete the work.
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
SEALANTS AND CAULKING
A. General
1. Work included: Throughout work, seal and caulk joints as shown on drawings and
elsewhere as required to provide a positive barrier against passage of moisture.
2.
Use adequate number of skilled workmen who are thoroughly trained and
experienced in the necessary crafts and who are completely familiar with the
specified requirements and the methods needed for proper performance of the
work of this Section.
3. Samples: Submit range of standard colors for each sealant.
B. Sealants
1. Sealant material for moisture barrier to be Tremco Dimeric 511 or equal.
2. Use only those backup materials which are specifically recommended for this
installation by the manufacturer of the sealant used, which are non­absorbent,
and which are non­staining.
3. Provide other materials, not specifically described but required for a complete
and proper installation, as selected by the contractor subject to approval of the
Owner.
C. Preparation
1. Examine the areas and conditions under which work of the Section will be
performed. Correct conditions detrimental to timely and proper completion of
the work. Do not proceed until unsatisfactory conditions are corrected.
2. Concrete and Masonry Surfaces:
a. Install only on surfaces which are dry, sound and well brushed, wiping free
from dust.
b. At open joints, remove dust by mechanically blown compressed air if so
required.
c. To remove oil and grease, use sandblasting or wire brushing.
7­101
d. Where surfaces have been treated, remove the surface treatment by
sandblasting or wire brushing.
e. Remove latence and mortar from joint cavities.
D. Installation of Backup Material
1. When using backup of tube or rod stock, avoid lengthwise stretching of the
material. Do not twist or braid hose or rod backup stock.
2. Installation Tool:
a. For installation of backup material, provide a blunt­surfaced tool of wood
or plastic, having shoulders designed to ride on the adjacent finished
surface and a protrusion of the required dimensions to assure uniform depth
of backup material below the sealant.
b. Do not, under any circumstance, use a screwdriver or similar tool for this
purpose.
c. Using the approved tool, smoothly and uniformly place the backup
material to the depth indicated on the drawings or otherwise required,
compressing the backup material 25% to 50% and securing a positive fit.
3. Prior to start of installation in each joint, verify the joint type according to details on
the Drawings, or as otherwise directed by the Engineer, and verify that the
required proportion of width of joint to depth of joint has been secured.
4.
Apply sealant under pressure with power actuated hand gun or manually­
operated hand gun, or by other appropriate means. Use guns with nozzle of
proper size, and providing sufficient pressure to completely fill the joints as
designed.
5. Thoroughly and completely mask joints where the appearance of primer or
sealant on adjacent surfaces would be objectionable.
6. Install the sealant in strict accordance with the manufacturer’s recommendations,
thoroughly filling joints to the recommended depth.
7. Tool joints to a concave profile or as shown on the drawings.
8. Remove masking tape immediately after joints have been tooled. Clean adjacent
surfaces free from sealant as the installation progresses, using solvent or cleaning
agent recommended by the manufacturer of the sealant used.
9. Upon completion of the work of this Section, promptly remove from the job site all
debris, empty containers, and surplus material derived from this portion of the
work.
E. Measurement and Payment
Payment for work satisfactorily completed under this section of the contract will be
considered incidental to the work performed on one or more of the pay items.
7­102
END OF SECTION
7­103
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
PAINTING
A. General
1. Work included: Paint and finish the surfaces listed on the Painting Schedule in Part
3 of this Section, as specified herein, and as needed for a complete and proper
installation. This includes painting of all existing surfaces affected by project work.
2.
“Paint”, as used herein, means coating systems materials including primers,
emulsions, epoxy, enamels, stains, sealers, fillers, and other applied materials
whether used as prime, intermediate or finish coats.
B. Quality Assurance
1. Use adequate numbers of skilled workmen who are thoroughly trained and
experienced in the necessary crafts and who are completely familiar with the
specified requirements and the methods needed for proper performance of the
work of this Section.
2. Paint Coordination
a. Provide finish coats which are compatible with the prime coats actually
used.
b. Review other Sections of these Specifications as required, verifying the
prime coats to be used and assuring compatibility of the total coating
system for various substrata.
c Upon request, furnish information on the characteristics of the specific finish
materials to assure that compatible prime coats are used.
d. Provide barrier coats over noncompatible primers, or remove the primer
and reprime as required.
e. Notify the Owner in writing of anticipated problems in using the specified
coating systems over prime coatings supplied under other Sections.
3. Workmanship
a. All materials shall be applied free from runs, sags, wrinkles, streaks, shiners
and brush marks.
b. All materials shall be applied uniformly. If any reduction of the coatings’
viscosity is necessary, it shall be done in accordance with the
manufacturer’s label directions.
4. Do not apply solvent­thinned paints when the temperature of surfaces to be
painted and the surrounding air temperatures are below 50 degrees F, unless
otherwise permitted by the manufacturer’s printed instructions or as approved by
Owner.
7­104
5.
Examine the areas and conditions under which work of this Section will be
performed. Correct conditions detrimental to timely and proper completion of
the work. Do not proceed until unsatisfactory conditions are corrected.
C. Submittals
1. Contractor shall submit samples of the complete range of colors available for the
finish specified within 14 days of Contract Date.
2. Manufacturer’s specifications and other data needed to prove compliance with
the specified requirements.
3. Where tinting to match is requested or required, Contractor shall submit samples
on the type of material on which the stain will be used. Contractor shall mix and
adjust stain color as directed by Owner and resubmit samples until approved by
the Owner. Approved sample will become the standard for the work.
D. Extra Stock
Upon completion of the work of this Section, deliver to the Owner leftover stock of each color
type, and gloss of paint used in the Work, tightly sealing each container, and clearly labeling
with the contents and location where used.
E. Materials
1. The painting Schedule in this Section is based, in general, on products of the
Benjamin Moore Company. Equal products of Sherwin­Williams, Glidden or other
manufacturers approved in advance by Owner, may be substituted in
accordance with provisions of contract.
2. Where products are proposed other than those specified by name and number in
the Painting Schedule, provide under the product data submittal required by this
Section a new painting schedule compiled in the same format used for the
Painting Schedule included in this Section.
3. A maximum of 5 colors will be selected with different colors used for trim, recess
panels, etc.
4. Provide other materials, not specifically described but required for a complete
and proper installation as selected by the Contractor subject to the approval of
the Owner.
F. Application Equipment
1. For application of the approved paint, use only such equipment as is
recommended for application of the particular paint, and as approved by the
Engineer.
7­105
2. Prior to use of application equipment, verify that the proposed equipment is
actually compatible with the material to be applied, and that integrity of the
finish will not be jeopardized by use of the proposed equipment.
3. Film thickness to conform to manufacturers recommendations.
G. Preparation
1. Mix and prepare materials in strict accordance with the manufacturer’s
recommendations as approved by the Owner.
2. When materials are not in use, store in tightly covered containers.
3. Maintain containers used in storage, mixing and application of paint in a clean
condition, free from foreign materials and residue.
4. Stir materials before application, producing a mixture of uniform density.
5. Do not stir into the material any film which may form on the surface, but remove
the film and, if necessary, strain the material before using.
6. Do not shake material unless specifically recommended by the manufacturer.
H. Surface Preparation
1. Perform preparation and cleaning procedures in strict accordance with the paint
manufacturer’s recommendations as approved by the Engineer.
2. Remove removable items which are in place and are not scheduled to receive
paint finish or provide surface­applied protection prior to surface preparation and
painting operations.
3. Following completion of painting in each space or area, reinstall the removed
items by using workmen who are skilled in the necessary trades.
4. Schedule the cleaning and painting so that dust and other contaminants from the
cleaning process will not fall onto wet newly painted surfaces.
5. Remove any protruding nails, etc. and patch holes prior to beginning painting.
6. On new galvanized metal, thoroughly and aggressively clean with mineral spirits.
On existing/weathered galvanized metal and new galvanized metal, remove all
rust by sanding and spot prime immediately with Iron Clad Retardo Rust Inhibitive
Paint (163).
7. Allow pressure treated wood member to weather 30 days before applying paint
stain.
I. Paint Application
7­106
1. Touch­up shop applied prime coats which have been damaged and touch­up
bare areas prior to start of finish coat application.
2. The prime coat should be applied soon after surface preparation has been
completed, to prevent contamination of the substrate.
3. On all fencing and trim, finish all sides.
4. Allow sufficient drying time between coats, modifying the period as
recommended by the material manufacturer to suit adverse weather conditions.
5. Consider oil­base and oleo­esinous type paint as dry for recoating when the paint
feels firm, does not deform or feel sticky under moderate pressure of the thumb,
and when the application of another coat of paint does not cause lifting or loss of
adhesion of the undercoat.
6. Brush and work the brush coats onto the surface in an even film. Cloudiness,
spotting, laps, brush marks, runs, sags, ropiness and other surface imperfections will
not be acceptable.
7. Except as specifically otherwise approved by the Engineer, confine spray
application to metal framework and similar surface where hand brush work should
be inferior.
8. Where spray application is used, apply each coat to provide the hiding
equivalent of brush coats. Do not double back with spray equipment to build up
film thickness of two coats in one pass.
9. For completed work, match the approved samples as to texture, color and
coverage. Remove refinish or repaint work not in compliance with the specified
requirements.
J. Painting Schedule
1. Provide the following paint finishes as based on the products of the Benjamin­
Moore Company (unless noted otherwise).
2. Wood Fence/Trim
a. First Coat: Sikkens CETOL 1 stain or equal, color cedar tone clear.
b. Second Coat: Sikkens CETOL 23 stain, color cedar tone clear.
c. Third Coat: Sikkens CETOL 23 stain or equal, color cedar tone clear.
3. Ferrous Metal
a. First Coat: Iron Clad Retard­X Rust Inhibitive Latex Primer (163).
b. Second Coat: (Moore’s Alkyd Dulamel (207)).
c. Third Coad: (Moore’s Alkyd Dulamel (207)).
K. Measurement and Payment
7­107
Payment for work satisfactorily completed under this section of the contract will be
considered incidental to bid pay items “Cedar Fence” and “Welcome Sign”.
END OF SECTION
7­108
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
ASBESTOS CONTAINING MATERIALS
A. General
Asbestos containing materials were identified in several buildings scheduled for demolition.
Prior to demolition activities, all identified asbestos containing materials, with the exception of
roofing materials, will be abated under a separate contract managed by the City of
Marquette. Contractor will be responsible for removal of asbestos containing roofing
materials from the Wagner Building and Mattson Park Storage Building prior to demolition.
Abatement of asbestos containing roofing materials must be conducted in accordance with
applicable Local, State, and Federal regulations including Michigan Administrative Code R
325.51302 Part 602, which adopts the Federal Occupational Safety and Health Administration
29 CFR 1926.1101 Asbestos Standards for Construction. Prior to initiation of abatement
activities, contractor will provide the City Engineer or his representative with the
documentation certifying abatement sub­contractor’s qualifications. Documentation,
including air monitoring records and asbestos waste disposal manifests, will be supplied by
the Contractor to the City Engineer or his representative following project completion.
B. Measurement and Payment
Payment for work satisfactorily completed under this section of the contract will be
considered incidental to bid pay items for the building demolition .
7­109
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
UNCLASSIFIED EXCAVATION
A. DESCRIPTION
This work shall consist of all work, materials and equipment requited in the excavation of all
suitable and unsuitable materials to the limits as shown on the drawings within the
construction limits except for material already covered by contract removal pay items.
Excavation also includes existing pavement, regardless of depth, all miscellaneous building
debris, piping, conduit, structures and any unsuitable materials encountered when trenching
for utilities. Such suitable materials shall include MDOT Granular Class III Material or better
and unsuitable materials shall include in addition to the Interim 2012 MDOT Standard
Specifications for Construction, Section 205.03C, fly ash and other undesirable fill materials
which may have been placed within the construction limits of this project in prior years.
Determination of unsuitable materials shall be made by the Engineer. The work included in
"Unclassified Excavation" shall be performed in accordance with Section 205 of the Interim
2012 MDOT Standard Specifications for Construction with the exceptions and additions
specified herein.
B. CONSTRUCTION METHODS
Excavation limits will be from the top of the existing ground to the bottom of unsuitable
material and within the right­of­way. All excavation shall not be less than five (5') feet below
the bottom of existing pavement or as otherwise directed by the Engineer and as called out
on the typical cross sections.
The Contractor shall take extreme precautionary measures when removing material along
the existing gas main, gas laterals, underground telephone and cable lines and any
unforeseen underground utility encountered during excavation, these utilities will not be
relocated or will temporary facilities be provided before or after the start of construction. The
Contractor shall hand­dig around these above mentioned utilities under all circumstances.
C. MEASUREMENT AND PAYMENT
Measurement and payment for the following items of work shall be as follows:
The completed work for "Unclassified Excavation" shall be paid for at the contract unit price
per cubic yard. Payment shall include excavation of all suitable and unsuitable materials
(excluding contaminated materials), handling, hauling and disposal. The limits of the
"Unclassified Excavation" will be determined by cross­sectional measurements. Payment shall
also include all hand­digging required around existing gas mains, gas laterals, underground
telephone and cable and any unforeseen underground utilities encountered during
excavation or trenching.
7­110
Pay Item
Pay Unit
Unclassified Excavation
Cyd
Work for backfilling shall be measured and paid for separately at the contract unit price for
modified subbse, modified embankment, embankment, aggregate base and bituminous
pavement work items. Backfill material shall meet MDOT Granular Class III Material or better
or as called out on the plans.
7­111
END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
EMBANKMENT, MODIFIED
A. GENERAL
This work shall consist of all work, materials, and equipment required in the backfilling of
excavated areas within the construction limits. The work included in "Embankment, Modified"
shall be performed in accordance with Section 205 of the Interim 2012 MDOT Standard
Specifications for Construction with the exceptions and additions specified herein.
B. CONSTRUCTION METHODS
Construction methods shall be performed in accordance with Section 205 of the Interim 2012
MDOT Standard Specifications for Construction. However, all embankment from the
bottomof unsuitable material or bottom of excavation up to the bottom of subbase, bottom
of proposed sidewalk, or bottom of topsoil surface for the entire construction project shall be
MDOT Granular Class III Material or better.
Bedding of all proposed and existing utilities throughout the entire project shall follow
standard plan R­83­B.
C. MEASUREMENT AND PAYMENT
Measurement and payment for the following items of work shall be as follows:
The completed work for "Embankment, Modified" shall be paid for at the contract unit price
per cubic yard.
Pay Item
Pay Unit
Embankment ­ Modified
END OF SECTION
7­112
Cyd
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
CONTRACTORS WHEN WORKING NEAR NATURAL GAS FACILITIES
SEMCO ENERGY GAS COMPANY
1.
Contractor shall use nylon straps to support SEMCOENERGY pipelines at a minimum
spacing of twenty (20) feet. Chains or cables are not allowed to support natural gas
pipelines.
2.
When encountered and supported, SEMCOENERGY pipelines will be relocated in its
original trench line location, at a depth of 36” to 60” in depth depending on depth
requirements at that location. Tracer wire must be placed 6” above the pipe. (To
prevent damage to plastic pipeline from lightning strike).
3.
Any pipe trenches that cross or at driveways where undisturbed soils and disturbed
soils meet shall be backfilled using MDOT Class II sand backfill that is compacted to
95% density. (Over and Under Gas Lines to prevent shear off).
4.
When natural gas lines are adjacent to manholes or drainage structures, the Natural
Gas Lines will be wrapped with “rock shield or approved material” to protect from
abrasion. “Rock shield or approved material” will be provided by SEMCOENERGY
upon request from the contractor.
5.
When blasting around natural gas facilities (mains and service) are planned,
SEMCOENERGY will survey the area in question for leaks (before and after blasting).
Also if blasting is performed in close proximity to SEMCOENERGY facilities (will be
determined by SEMCOENERGY Engineering), all natural gas facilities will be exposed
by the Contractor doing the work and then inspected by SEMCOENERGY. The
Contractor will be responsible for exposing, shielding, backfilling and compacting
(with sand) all SEMCOENERGY Natural Gas facilities prior to blasting. Once blasting
has been completed, the Natural gas facilities will be resurveyed for leaks.
Contractor will expose the natural gas facilities for inspection if deemed necessary by
SEMCOENERGY after blasting.
6.
Contractor shall immediately alert SEMCOENERGY if tracer wire, coating or test
stations are damaged during construction so that SEMCOENERGY can make repairs
when tracer wire, coating or test stations are still exposed. (Not buried) If buried the
contractor will be charge time and material for repairs.
7.
As per Public Act 53 of 1974, The Contractor shall call Miss Dig (800­4827171) a
minimum of three (3) full working days, excluding Saturdays, Sundays and Holiday
prior to beginning each excavation in area where public utilities have not been
previously located.
7­113
8.
SEMCOENERGY Northern Division Contact Personnel
Office (800) 624­2019
Val Lindsay, Operations Technician II, ext. 5908
Robert Bortolameolli, Operation Maintenance Foreman, ext. 5911
Mark Kachur, Manager, ext. 5906
Jan Dobson, Operation Administration Assistant, ext. 5902
In case of emergency contact SEMCOENERGY Gas Dispatch at (888) 427­1427
END OF SECTION
7­114
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
PRV MANHOLE, ” PRV
A. General
This item covers the construction of a 6' diameter manhole and installation of a pressure
regulating valve of the size shown on the plans, or as directed by the Engineer. The
installation may include a bypass line with low flow pressure regulator, if so called for on the
plans.
B. Materials
Materials for use in constructing the pressure regulating manhole shall include the following:
Main Line Pressure Regulating Valves. The main line valve shall be a Cla­Valve Model
90G­01YCSB with flanged ends, of the size indicated on the plans. The valve shall be
fusion­bonded epoxy coated inside and out in accordance with ANSI/AWWA C550, and shall
be ordered pre­set to the delivery pressure determined by the Engineer.
Bypass (Low Flow) Pressure Regulating Valves. Bypass valves shall be Cla­Valve Model
90G­01AJ valves of the size indicated on the plans. These valves shall be fusion­bonded
epoxy coated inside and out, shall have screwed ends, and shall be ordered pre­set to the
same delivery pressure determined by the Engineer.
Precast Manhole. Precast manhole sections shall conform to ASTM C478, the Michigan
Department of Transportation Standard Details I­1E, and the details shown on the City
Engineer's Standard Detail for a 6' diameter manhole. The contractor may order the
manhole riser with wall adapter sleeves cast in place at the factory, or may order the riser
with "dog­house" style cutouts of the size indicated on the plans.
Wall Sleeves shall be similar to the Clow model F­1429 Mechanical Joint Adapter Sleeve, of
length as required on the plans and of the required diameter for the watermain shown on the
plans. They shall be furnished with studs and mechanical joint retainer glands.
1. Gauge cocks shall be of red brass with a female 3/8" NPT thread for connecting a
pressure gauge.
2. Concrete shall be MDOT grade 35S.
3. Aggregate shall be MDOT 6A Coarse Aggregate.
7­115
4. Bypass Piping. Piping for bypass lines shall be Schedule 40 IPS size red brass pipe
per ASTM Standard B43, and shall be threaded for iron pipe size fittings.
5. Tappings Saddles. Tapping saddles for bypass lines shall be Rockwell Model 313
service saddles, or an approved equal.
6. Ball Valves. Ball valves for bypass lines shall be bronze bodied valves with teflon
seals and stainless steel balls and stems, similar to Milwaukee Valve Company
Model BA­100 valves with screwed ends.
C. Construction Methods
The manhole shall be constructed by placing the base to the required line and grade as
shown on the plans. Pipe laying operations may proceed either with or without the manhole
riser section in place, depending upon the style of riser being used. If the precast manhole
riser has "doghouse" cut­outs, they shall be centered over the water main, so that the wall
sleeves may be installed and the cutouts closed with concrete per City Engineer's Standard.
If the manhole has factory cast wall sleeves, the bottom and riser shall be carefully set to line
and grade so that the water main will be centered in the wall sleeves. Flange connections at
the pressure regulator valve will be made up without stressing or distorting the pipe or valve.
Manhole cover and sump orientation shall be as shown on the standard detail drawing.
D. Method of Measurement and Payment
PRV Manhole, 12” PRV the nominal watermain size specified shall be measured and paid for
by the unit EACH. Payment shall be full compensate­on for all labor, plant, material, and
equipment to construct the manhole and install the pressure regulating valve and
associated items, as shown within the pay limits in the plan details, including bypass piping
and low flow pressure regulator if called for. Excavation and backfilling shall be included in
the payment. Manhole covers, gate valves, and fittings and pipe shown outside the pay
limits on the standard detail shall be paid as separate items.
Pay Item
Pay Unit
PRV Manhole, __” PRV
Each
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END OF SECTION
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATION
SIDEWALK RAMP, ADA
A. General
Section 803, “Concrete Sidewalk, Sidewalk Ramps, and Steps” of the 2012 MDOT Standard
Specifications for construction is hereby modified to include the following:
This work shall consist of furnishing all material, equipment, tools and labor necessary for the
placement of concrete sidewalk ramps with detectable warning surfaces complete and ready
for service at location(s) specified in the contract documents, construction plans or as directed
by the Engineer. All work shall be in accordance with the details and standards as specified by
the Americans with Disabilities Act of 1990 (ADA) or any amendments thereto.
B. Construction Requirements
The detectable warning surface shall be ADA compliant 12 inch by 12 inch warning pavers
with brick red color or approved equal as manufactured by Wausau Tile Inc., Tile Tech Pavers,
Hanover Architectural Products, Industrial Construction Services, ADA Solutions, or approved
equal. Tiles can be replacement wet set or cast in place.
Pattern and dimensions of the detectable warning surface shall incorporate an “in­line” dome
pattern of truncated domes 0.2” in height, 0.9”diameter at the base and 0.45” diameter at top
of dome. Domes should be spaced no greater than 2 ⅜” from center to center. The field area of
the detectable warning surface should consist of raised points no greater than 0.045”, to create
a non­slip surface for wheelchair safety. The pavers will be 2 ¾” in thickness.
Overall dimensions of the detectable warning surface shall be in accordance with the details
and standards as specified by the Americans with Disabilities Act of 1990 (ADA) or any
amendments thereto.
Sidewalk Ramps shall be 6” thick. The finished surface of the curb ramp and transition slope
ramps shall be uniformly profiled to match the adjoining surfaces without lips or obstructions and
shall drain completely. The location and orientation of the curb ramps shall be constructed as
specified by the Americans with Disabilities Act of 1990 (ADA) or any amendments thereto.
Where a curb ramp is constructed within the existing curb, combination curb and gutter and/or
sidewalk, the existing curb or combination curb and gutter shall be removed to the nearest joint
beyond the curb transitions or to the extent that no remaining section of curb or curb and gutter
is less than 5’ long. The existing sidewalk shall be removed to the nearest joint beyond the
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transition slope ramps or walk around or to the extent that no remaining section of sidewalk is less
than 5’ long.
Detectable warning surface shall extend the full width of the curb ramp or landing and in the
direction of travel 30” from the back of curb. The detectable warning surface shall not be
installed on the transition slope ramps. The detectable warning surface shall be located so that
the edge nearest the curb line is 6” from the back of curb unless noted in the contract
documents.
Domes shall be aligned on a square grid, aligned in rows parallel and perpendicular to the
predominant direction of travel. The domes must be not skewed diagonally to the direction of
travel.
All detectable warning pavers will be set in the concrete using thin mortar set installation.
The Contractor and material manufacturer shall jointly warrant the installed detectable warning
surface to last no less than two years without losing more than one percent of the truncated
domes due to delaminating as a result of product failure. Product failure will include all spalling,
pop outs, cracking, scaling, improper subgrade compaction, and loss of original coloring.
C. Measurement and Payment
Sidewalk Ramps, ADA will be measured in square feet of finished surface and detectable
warning surface, complete­in­place, and paid for at the contract unit price per square foot. This
price shall be full compensation for furnishing and installing a curb ramp with detectable
warning surface pavers, including but not limited to, layout, excavation, bedding, concrete,
detectable warning surface, surface preparation, saw­cutting, surface sealant, repairs and
cleaning of the adjoining areas disturbed by the installation, and all other labor, tools,
equipment, materials and incidentals necessary to complete the work.
Pay Item
Pay Unit
Sidewalk Ramp, ADA
END OF SECTION
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Sft
CITY OF MARQUETTE
CHAPTER 7
SUPPLEMENTAL SPECIFICATIONS
RECYCLED ASPHLAT SHINGLES
IN HMA MIXTURES
A. Description
Section 501 of the MDOT 2012 Standard Specifications for Construction is revised to include
the following requirements for the use of Recycle Asphalt Shingles (RAS) and will be allowed
in the HMA specified for the project provided.
B. Material Requirements
Reclaimed Asphalt Shingles (RAS) are allowed in hot mix asphalt (HMA) up to a maximum
of 5 percent of the total weight of the mixture. RAS can be used for all lifts provided all
specifications for HMA are met. Only RAS from manufactured shingle waste or post­
consumer asphalt shingles as defined by AASHTO MP 15 shall be allowed.
The RAS shall not contain deleterious materials such as metals, glass, rubber, soil, brick,
tars, paper, wood, and plastic and shall not exceed 0.5 percent by mass as determined
by material retained on the #4 sieve. Deleterious material will be determined by the
amount retained on the #4 sieve from a 500g­700g RAS sample. The Contractor shall pick
and weigh the amount retained on the #4 sieve and provide the results to the City
Engineer.
The Contractor shall submit a mix design in accordance with Section 501 of the MDOT
2012 Standard Specifications for Construction. The shingle aggregate gradation and
specific gravity shall be determined in accordance with ASTM C136 and ASTM 2726. The
AC content of the RAS utilized in the Contractor RAS mix design shall be determined in
accordance with ASTM D2172. The Contractor shall determine the percent contribution
of binder from RAS and the percentage of virgin effective binder in the HMA in
accordance with ASTM D2172 and per the current Michigan Department of
Transportation HMA Production Manual. At least 60% of blended binder content shall be
virgin effective binder for leveling course applications and 65% of blended binder
content shall be virgin effective content for top course applications. When RAS is used
along with Reclaimed Asphalt Pavement (RAP), the binder replaced by the RAP will be
considered as a part of the maximum allowed content of replaced binder.
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The Contractor may uniformly blend sand or fine aggregate with RAS in stockpiles if
needed to keep the processed material workable. The sand or fine aggregate added
must be considered in the final gradation of the new HMA.
HMA with RAS shall be tested for acceptance in accordance with Section 501 of the
MDOT 2012 Standard Specifications for Construction.
RAS samples collected and analyzed, for the purpose of identifying properties of RAS as
defined in this specification, shall be representative of the RAS that will be used in the
HMA production for this project.
All RAS shall be added by a dedicated feed bin when the HMA is produced.
C. Quality Control
The Contractor shall have an approved Quality Control Plan (QCP) that details how the
RAS will be processed and controlled. When the Contractor intends to use RAS from a
RAS Supplier, that supplier’s QCP shall be submitted by the Contractor. The Engineer will,
in writing, suspend the work wholly or in part, for failure to comply with the approved
QCP. The QCP shall be submitted with the Contractor’s HMA mix design and shall address
the following:
RAS Processing Techniques: Hand sorting of deleterious material prior to grinding is
required.
B. Determination and Control of RAS Asphalt Binder Content (AC) shall be
determined in accordance with ASTM D2172, provided a RAS AC content
correction factor is determined through correlation testing per the current
Michigan Department of Transportation HMA Production Manual.
C. Control of RAS Gradation (ASTM C136):
Frequency: 1/1000 tons of processed RAS material (minimum three tests)
D. Process Control Charts shall be maintained for RAS binder content during addition
of any RAS material to the stockpile. The Contractor shall maintain separate
control charts for each RAS stockpile. The control charts shall be displayed and
shall be made available to the Engineer upon request.
E. Asbestos content of RAS: Frequency: 1/1000 tons of processed RAS material
(minimum three tests). The Contractor shall provide asbestos test results certifying
compliance with the Environmental Protection Agency (EPA) National Emission
Standards for Hazardous Air Pollutants (NESHAP) requirements. The Contractor’s
Project Safety Management Plan shall include a hazard assessment and safety
considerations for the RAS processing and construction operations.
G. Deleterious Material: Frequency: 1/1000 tons of RAS material (minimum three
tests)
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The processed RAS shall be ground to meet the following requirements.
Sieve Size Percent Passing by Mass
Sieve Size
½ in.
#4
Percent Passing
100
90 Min.
The aggregate and binder obtained from the processed RAS shall be uniform in all the
measured parameters in accordance with the following:
UNIFORMITY*
Parameter Standard Deviation
Binder Content – 3.5 Max
Percent Passing #200 ­ 6.0
*Uniformity is the Maximum allowable Standard Deviation
of test results of processed RAS.
The Contractor/RAS Supplier shall allow representatives from the City of Marquette to visit
the RAS production and/or shipping site during normal business hours to observe the
quality control activities. Access to the site shall be provided within 24 hours of notice
from the Engineer. The Engineer may require addition testing to assess the QC activities.
D. Measurement and Payment
Pay Item
HMA (as specified)
Pay Unit
ton
END OF SECTION
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