SFUSD
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
SECTION 00800
SPECIAL CONDITIONS
1.1 Contract Time/Milestone Schedule and Description of Phases
All Phase times indicated are from start of Contractor’s access to work area to Substantial
Completion for each Phase. All punch list work shall be completed within 30 days of Substantial
Completion for each phase.
1.2 Contract Time and Milestone Schedule:
•
•
•
•
•
Notice To Proceed (NTP): 6/15/2016
Phase 1: 6/15/2016 – 7/15/2016
Phase 2: 7/18/2016 – 8/3/2016
Substantial Completion: 8/3/16
Final Completion: 9/2/16/2016. 80 calendar days from Notice to Proceed.
Description of Phase 1: 6/15/2016 – 7/22/2016
The work includes, but is not limited to:
• Mobilization
• Submittal review & approval of chain link fence
• Review of Allowance Scope with SFUSD, coordinate glazing replacement, gym floor repair
and bollard replacement
• Coordinate Permit requirement for Sidewalk scope Coordination with Public Agencies and
procurement of necessary permits
• Milestone 1: 7/5/16 – 7/22/16
o
Install Chain link Fence
Description of Phase 2: 7/18/2016 – 8/3/2015
The work includes, but is not limited to:
o
Removal of existing sidewalk, curb & gutter, and asphalt and providing new
sidewalk, curb & gutter, and asphalt
o
Completion of remaining allowance scope identified in phase 1
1.3 Description of General Phasing Requirements:
A. These descriptions of the phases are general in nature and in no way offer the complete and
concise description of all the work required by the Contract Documents.
B. The start dates represented in the milestone schedule are preliminary and the District reserves
the right to modify these dates based on when the Notice to Proceed is issued.
C. The Contractor is responsible for providing the manpower and scheduling the shifts necessary to
complete the work in accordance with the Contract Time and Milestone Schedule.
D. The site is occupied by District staff all year. The Work of this project must take into account that
the site will be occupied by staff and will be phased as generally described above and in other
contract documents. Summer programs will be onsite until 7/23/16.
E. Non-Occupied hours are defined as hours before 7:00 AM and after 5:00 PM on week days.
The site is not occupied on weekends.
F. Hazmat work prohibited between 7:00 AM and 5:00 PM. Hazmat Abatement cannot be
performed while staff is on site.
May 2016
00800 - 1
Special Conditions
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
SFUSD
1.4
Liquidated Damages
A.
Substantial Completion: The delayed Substantial Completion of any phase of the Work will
result in the assessment and withholding of Liquidated Damages for each day of delayed
Substantial Completion beyond the Contract Time for Substantial Completion of that phase
of the Work in the amount of $1000 per day.
B.
Final Completion. The delayed Final Completion of the Work will result in the assessment
and withholding of Liquidated Damages for each day of delayed Final Completion beyond the
Contract Time for Final Completion of the Work in the amount of $500 per day until all punch
list items are completed.
1.5 District Standards.
In accordance with California Public Contract Code section 3400, a designee of the District has made a
finding that particular materials, products, things, and/or services are to be designated in the Contract
Documents by specific brand or trade name for the following purpose: in order to match other products in use
on a particular public improvement either completed or in the course of completion (“District Standards”). The
District Standards are set forth in Section 00013 San Francisco Unified School District Construction
Standards. The particular materials, products, things, and/or services designated in the District Standards
shall be used in the Work.
1.6 The Environmental Protection Agency (EPA)
Regulation 40 CFR Part 745 became fully effective June 23, 2008 which requires all firms, including subcontracted firms who impact lead-based paint (LBP) at Child Occupied Facilities to be EPA certified; have an
EPA “Certified Renovator”; provide “on-the-job” training for workers; conduct pre-renovation notifications;
follow specific work practice procedures for containment, disturbance and final clean-up; and inspection
requirements. Renovation is defined as the modification to any existing structure or portion that results in the
disturbance of LBP surfaces, unless the activity is performed as part of an abatement. In essence this
regulation includes all work construction activities that disturb LBP surfaces.
May 2016
00800 - 2
Special Conditions
SFUSD
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
SECTION 02821
CHAIN-LINK FENCES AND GATES
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 1 Specification Sections, apply to this Section.
B.
Refer to Appendix for Hazardous material requirements.
1.2
SECTION INCLUDES
A.
Galvanized steel Chain link fencing, accessories and gates, complete, as shown and
specified.
B.
Excavation for post bases; concrete foundation for posts
1.3
DEFINITIONS
A.
1.4
CLFMI: Chain Link Fence Manufacturers Institute.
SUBMITTALS
A.
Product Data:
Material descriptions, construction details, dimensions of individual
components and profiles, and finishes for the following:
1.
Fence , rails, and fittings.
2.
Chain-link fabric, reinforcements, and attachments.
B.
Shop Drawings: Show locations of fence, each gate, posts, rails, and tension wires and
details of extended posts, extension arms, gate swing, or other operation, hardware, and
accessories. Indicate materials, dimensions, sizes, weights, and finishes of components.
Include plans, elevations, sections, gate swing and other required installation and
operational clearances, and details of post anchorage and attachment and bracing. Layout
of fences and gates with dimensions, details, and finishes of components,
accessories, and post foundations. Verify that field measurements are as indicated
on shop drawings
1.5
QUALITY ASSURANCE
A.
Installer Qualifications: An experienced installer who has completed chain-link fences and
gates similar in material, design, and extent to those indicated for this Project and whose
work has resulted in construction with a record of successful in-service performance.
B.
Source Limitations for Chain-Link Fences and Gates: Obtain each color, grade, finish, type,
and variety of component for chain-link fences and gates from one source with resources to
provide chain-link fences and gates of consistent quality in appearance and physical
properties.
March 2016
Chain Link Fences and Gates
02821-1
SFUSD
C.
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
Perform work in accordance with CLFMI (chainlink fencing manufacturer institute)
product manual and manufacturer’s instructions.
PART 2 - PRODUCTS
2.0
ACCEPTABLE MANUFACTURERS
A. General: Allied Tube & Conduit, Cyclone Fencing, Anchor Fence/Master Halco or equal
2.1
CHAIN-LINK FENCE FABRIC
A.
Steel Chain-Link Fence Fabric: Height indicated on Drawings. Provide fabric fabricated in
one-piece widths for fencing in height of 12 feet (3.6 m) and less. Comply with CLFMI's
"Product Manual" and with requirements indicated below:
1.
Mesh and Wire Size: 2-inch (25-mm) mesh, 9 gage wire.
2.
Zinc-Coated Fabric: ASTM A392, with zinc coating applied to steel wire before
weaving according to ASTM A817, Type II, zinc coated (galvanized) with the
following minimum coating weight:
a.
Class 2: Not less than 2 oz./sq. ft. (610 g/sq. m) of uncoated wire surface.
3.
Coat selvage ends of fabric that is metallic coated during the weaving process with
manufacturer's standard clear protective coating.
B.
Selvages: Knuckled at top and bottom; ends closed.
2.2
FENCE FRAMING
A.
Round Steel Pipe: Standard weight, Schedule 40, galvanized steel pipe complying with
ASTM F1083. Comply with ASTM F1043, Material Design Group IA, external and internal
coating Type A, consisting of not less than 1.8-oz./sq. ft. (0.55-kg/sq. m) zinc; and the
following strength and stiffness requirements:
1.
Line, End, Corner, and Pull Posts and Top Rail: Per requirements for Light Industrial
Fence.
2.
Fence Height: As indicated on Drawings.
B.
Post Brace Rails: Match top rail for coating and strength and stiffness requirements.
Provide brace rail with truss rod assembly for each gate, end, and pull post. Provide two
brace rails extending in opposing directions, each with truss rod assembly, for each corner
post and for pull posts. Provide rail ends and clamps for attaching rails to posts.
C.
Top Rails: Fabricate top rail from lengths 21 feet (6.4 m) or longer, with swedged-end or
fabricated for expansion-type coupling, forming a continuous rail along top of chain-link
fabric.
D.
Intermediate Rails (for Fences Over 6’-0” High): Match top rail for coating and strength and
stiffness requirements.
E.
Bottom Rails: Match top rail for coating and strength and stiffness requirements.
2.3
TENSION WIRE
A.
General Location: Extended along top and bottom of fence fabric.
B.
Metallic-Coated Steel Wire: 0.177-inch- (4.5-mm-) diameter, marcelled tension wire
complying with ASTM A824 and the following:
March 2016
Chain Link Fences and Gates
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SFUSD
1.
2.4
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
Coating: Type II, zinc coated (galvanized) by the hot-dip process with the following
minimum coating weight:
a.
Class 2: Not less than 2 oz./sq. ft. (610 g/sq. m) of uncoated wire surface.
b.
Matching chain-link fabric coating weight.
SWING GATES
A.
General: Comply with ASTM F900 for the following swing-gate types:
1.
Single gate.
2.
Double vehicular gates
B.
Metal Pipe and Tubing: Galvanized steel. Comply with ASTM F1083 and ASTM F1043 for
materials and protective coatings.
C.
Frames and Bracing: Fabricate members from round galvanized steel tubing with outside
dimension and weight according to ASTM F900 for the following gate fabric height:
1.
Gate Fabric Height: As indicated on Drawings.
D.
Frame Corner Construction: Welded.
E.
Gate Posts: Fabricate members from round galvanized steel pipe with outside dimension
and weight according to ASTM F900 for the following gate fabric heights and leaf widths:
1.
Gate Fabric Height by Leaf Width: As indicated on Drawings.
F.
Hardware: Latches permitting operation from both sides of gate, hinges, and, for each gate
leaf more than 5 feet (1.5 m) wide, keepers. Fabricate latches with integral eye openings
for padlocking; padlock accessible from both sides of gate.
G.
Hardware:
1.
Hinges: galvanized pressed steel or malleable iron structurally capable of supporting
gate leaf and allow opening and closing without biding. Non-lift-off type hinge design
shall permit gate to swing 180 degrees.
2.
Latches: Galvanized fork type capable of retaining gate in closed position. Permitting
operation from both sides of gate with provision for padlocking accessible from both
sides of gate.
3.
Service gate: accessories as noted in drawings. Provide kickplates on single leaf
gates, refer to Section 08710 “Door Hardware”. Provide chain link holder with 18”
length of chain link welded to rod. See Details
4.
Locks, Exit Devices: Provide as specified in Section 08710 “Door Hardware”.
5.
Double gates: Provide galvanized drop rod with center gate stop pipe or receiver to
secure inactive leaf in the closed position. Provide galvanized pressed steel locking
latch, requiring one padlock for locking both gate leaves, accessible from either side.
6.
Gate Holdback: Provide galvanized gate hold back keeper for each gate leaf over 5’
wide. Gate keeper shall consist of mechanical device for securing free end of gate
when in full open position.
2.5
FITTINGS
A.
General: Provide fittings for a complete fence installation, including special fittings for
corners. Comply with ASTM F626.
B.
Post and Line Caps: Hot-dip galvanized pressed steel or hot-dip galvanized cast iron.
Provide weathertight closure cap for each post.
March 2016
Chain Link Fences and Gates
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SFUSD
C.
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
Rail and Brace Ends: Hot-dip galvanized pressed steel or hot-dip galvanized cast iron.
Provide rail ends or other means for attaching rails securely to each gate, corner, pull, and
end post.
D.
Rail Fittings: Provide the following:
1.
Top Rail Sleeves: Hot-dip galvanized pressed steel or round steel tubing. Not less
than 6 inches (153 mm) long.
2.
Rail Clamps: Hot-dip galvanized pressed steel. Provide line and corner boulevard
clamps for connecting intermediate and bottom rails in the fence line to line posts.
E.
Tension and Brace Bands: Hot-dip galvanized pressed steel.
F.
Tension Bars: Hot-dip galvanized steel, length not less than 2 inches (50 mm) shorter than
full height of chain-link fabric. Provide one bar for each gate and end post, and two for each
corner and pull post, unless fabric is integrally woven into post.
G.
Diagonal Truss Rod Assemblies:
means of adjustment.
H.
Tie Wires, Clips, and Fasteners: Provide the following types according to ASTM F626:
1.
Standard Round Wire Ties: For attaching chain-link fabric to posts, rails, and frames,
complying with the following:
a.
Hot-Dip Galvanized Steel: 0.106-inch- (2.69-mm-) diameter wire; galvanized
coating thickness matching coating thickness of chain-link fence fabric.
I.
Pipe Sleeves: For posts set into concrete, provide preset hot-dip galvanized steel pipe
sleeves complying with ASTM A53, not less than 6 inches (150 mm) long with inside
dimensions not less than 1/2 inch (13 mm) more than outside dimension of post, and flat
steel plate forming bottom closure.
2.6
Hot-dip galvanized steel rod and turnbuckle or other
GROUT AND ANCHORING CEMENT
A.
Nonshrink, Nonmetallic Grout: Premixed, factory-packaged, nonstaining, noncorrosive,
nongaseous grout complying with ASTM C1107. Provide grout, recommended in writing by
manufacturer, for exterior applications.
B.
Erosion-Resistant Anchoring Cement:
Factory-packaged, nonshrink, nonstaining,
hydraulic-controlled expansion cement formulation for mixing with potable water at Project
site to create pourable anchoring, patching, and grouting compound. Provide formulation
that is resistant to erosion from water exposure without needing protection by a sealer or
waterproof coating and that is recommended in writing by manufacturer for exterior
applications.
PART 3 - EXECUTION
3.1
EXAMINATION
A.
Examine areas and conditions, with Installer present, for compliance with requirements for a
verified survey of property lines and legal boundaries, site clearing, earthwork, pavement
work, and other conditions affecting performance.
1.
Do not begin installation before final grading is completed, unless otherwise
permitted by Architect.
B.
Proceed with installation only after unsatisfactory conditions have been corrected.
March 2016
Chain Link Fences and Gates
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SFUSD
3.2
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
PREPARATION
A.
3.3
Stake locations of fence lines, gates, and terminal posts at intervals indicated. Indicate
locations of utilities, lawn sprinkler system, underground structures, benchmarks, and
property monuments.
INSTALLATION, GENERAL
A.
General: Install chain-link fencing to comply with ASTM F 567 and more stringent
requirements specified.
B.
Post Excavation: Drill or hand-excavate holes for posts to diameters and spacings
indicated, in firm, undisturbed or compacted soil. Refer to Appendix for Hazardous Material
requirements.
C.
Post Setting: Hand-excavate holes for post foundations in firm, undisturbed or compacted
soil. Set gate-mounting posts in concrete footing. Protect portion of posts aboveground
from concrete splatter. Place concrete around posts and vibrate or tamp for consolidation.
Using mechanical devices to set line posts per ASTM F567 is permitted. Verify that posts
are set plumb, aligned, and at correct height and spacing, and hold in position during
placement and finishing operations until concrete is sufficiently cured.
D.
Posts Set into Concrete in Sleeves: Use steel pipe sleeves preset and anchored into
concrete for installing posts. After posts have been inserted into sleeves, fill annular space
between post and sleeve with nonshrink, nonmetallic grout, mixed and placed to comply
with anchoring material manufacturer's written instructions, and finished sloped to drain
water away from post.
E.
Post Setting: Set terminal, gate and line posts plumb in concrete footings. Top of
footing to be 1-inch above grade and sloped to direct water away from posts.
Concrete: maximum 28 day compressive strength of 2500 psi. Concrete set posts:
Drill holes in firm, undisturbed or compacted soil. Holes shall have diameter 4
times greater than outside dimension of post, and depths approximately 6”(152
mm) deeper than post bottom. Excavate deeper as required for adequate support
in soft and loose soils, and for posts with heavy lateral loads. Set post bottom 36”
(914 mm) below surface when in firm, undisturbed soil. Place concrete around
posts in a continuous pour. Trowel finish around post. Slope to direct water away
from posts
3.4
CHAIN-LINK FENCE INSTALLATION
A.
Terminal Posts: Locate terminal end, corner, and gate posts per ASTM F567 and terminal
pull posts at changes in horizontal or vertical alignment as indicated on Drawings.
B.
Line Posts: Space line posts uniformly at 10 feet (3.05 m) oc unless indicated otherwise on
Drawings.
C.
Post Bracing Assemblies: Install according to ASTM F567, maintaining plumb position and
alignment of fencing. Install braces at end and gate posts and at both sides of corner and
pull posts. Locate horizontal braces at midheight of fabric on fences with top rail and at
two-thirds fabric height on fences without top rail. Install so posts are plumb when diagonal
rod is under proper tension.
March 2016
Chain Link Fences and Gates
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SFUSD
D.
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
Tension Wire: Install according to ASTM F 567, maintaining plumb position and alignment
of fencing. Pull wire taut, without sags. Fasten fabric to tension wire with 0.120-inch- (3.05mm-) diameter hog rings of same material and finish as fabric wire, spaced a maximum of
24 inches (609 mm) oc. Install tension wire in locations indicated before stretching fabric.
1.
Top Tension Wire: Install tension wire through post cap loops.
2.
Bottom Tension Wire: Install tension wire within 6 inches (150 mm) of bottom of
fabric and tie to each post with not less than same gage and type of wire.
E.
Top Rail: Install according to ASTM F567, maintaining plumb position and alignment of
fencing. Run rail continuously through line post caps, bending to radius for curved runs and
terminating into rail end attached to posts or post caps fabricated to receive rail at terminal
posts. Provide expansion couplings as recommended by fencing manufacturer.
F.
Intermediate Rails: Install in one piece at post-height center span unless indicated
otherwise on Drawings, spanning between posts, using fittings, special offset fittings, and
accessories.
G.
Bottom Rails: Install, spanning between posts, using fittings and accessories.
H.
Chain-Link Fabric: Apply fabric to outside of enclosing framework. Leave 1 inch (25.4 mm)
between finish grade or surface and bottom selvage, unless otherwise indicated. Pull fabric
taut and tie to posts, rails, and tension wires. Anchor to framework so fabric remains under
tension after pulling force is released.
I.
Tie Wires: Use wire of proper length to firmly secure fabric to line posts and rails. Attach
wire at one end to chain-link fabric, wrap wire around post a minimum of 180 degrees, and
attach other end to chain-link fabric per ASTM F626. Bend ends of wire to minimize hazard
to individuals and clothing.
1.
Maximum Spacing: Tie fabric to line posts 12 inches (304 mm) oc. and to braces 24
inches (609 mm) oc.
J.
Fasteners: Install nuts for tension bands and carriage bolts on the side of the fence
opposite the fabric side. Peen ends of bolts or score threads to prevent removal of nuts.
3.5
GATE INSTALLATION
A.
3.6
General: Install gates according to manufacturer's written instructions, level, plumb, and
secure for full opening without interference. Attach fabric as for fencing. Attach hardware
using tamper-resistant or concealed means. Install ground-set items in concrete for
anchorage. Adjust hardware for smooth operation and lubricate where necessary.
ADJUSTING AND CLEANING
A.
Gate: Adjust gate to operate smoothly, easily, and quietly, free from binding, warp,
excessive deflection, distortion, nonalignment, misplacement, disruption, or malfunction,
throughout entire operational range. Confirm that latches and locks engage accurately and
securely without forcing or binding.
B.
Lubricate hardware and other moving parts.
C.
Construction Waste Management: Manage construction waste in accordance with
provisions of Section 01565 “Site Waste Management”. Submit documentation to satisfy the
requirements of that Section.
March 2016
Chain Link Fences and Gates
02821-6
SFUSD
March 2016
WILLIE L. BROWN JR. MS SIDEWALK AND FENCE PROJECT
SFUSD PROJECT NO.11502
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
END OF SECTION 02821
Chain Link Fences and Gates
02821-7