SPECIFICATIONS FOR:
DUCHESS COUNTY
Pre-Cast Concrete Catch Basins (Item D-355) &
Cast Iron Frame & Grate Tops (Item D-353b), as a Unit
1.0
INTENT:
1.01
2.0
Dutchess County (hereinafter “County”, or “the County”) is seeking quotations from
prospective vendors for the anticipated purchase of approximately 10 to 15 Pre-cast Concrete
Catch Basins (D-355) with the Cast Iron Frames & Grate Tops (D-353b) as a unit, over a one
(1) year period. However, the award of a contract does not obligate the County to purchase
any particular quantity. The `quantity purchased will be based upon the needs of the County.
MATERIAL REQUIREMENTS (Pre-Cast Concrete Catch Basin, D-355):
2.01
2.02
Pre-cast concrete catch basins (drainage units) shall be machine made or cast at the
manufacturer’s yard to various shapes and sizes specified in this specification or as
directed by the County.
2.02.01
Machine made units are those made by the following methods – roller
suspension, centrifugal, packerhead, machine tamped, machine vibrated, or
any other method provided the County approves beforehand.
2.02.02
Cast units are those made from concrete placed by conventional equipment.
These units develop resistance to freeze-thaw damage through the use of
entrained air in the concrete. Cast units include bottom slabs, bases, and top
slabs.
Machine made units shall conform to the requirements for concrete pipe except for the
following:
2.02.01
Design criteria and requirements for dimension and reinforcement shall
conform to the design section of ASTM C 478. The paragraph on laps,
welds and spacings in ASTM C 478, shall not apply. These requirements
shall be specified in DOT Material Specifications #706-02 of the NYSDOT
Standard Specifications, dated January 2, 1990, with any addendums
thereto.
2.02.02
Cast Units shall meet the requirements of the following sections of the
Standard Specifications of the NYSDOT Materials Section, dated January
2, 1990, with any addendums thereto.
a.
b.
c.
d.
Portland Cement
Coarse Aggregates
Concrete Sand
Base Reinforcement – GR 60
701-01
703-02
703-07
709-01
e. Base Reinforcement – GR 40
f. Wire Fabric for Conc. Reinf.
g. Wire Fabric for Conc. Reinf.
h. Admixtures
i. Water
j. Steps for CB’s & MH’s
k. Cold Drawn Wire
l. Deformed Wire Fabric
m. Deformed Steel Wire
2.03
2.02.03
Manufacturer shall maintain at the manufacturing site, a record of materials
used and their sources and a copy of the concrete mix design.
2.02.04
Ends of chairs or spacers used to support or locate reinforcing steel that
bears on faces of forms, shall be made or coated with a non-corrosive
material.
2.02.05
Manufacturer shall consolidate the concrete by external or internal vibrators
or a combination of both. The cast units shall be cured as per NYSDOT
Specification 706-02 noted above. If steam curing is used, unit shall not be
exposed to below freezing temperatures for at least 72 hours.
Coarse Aggregate:
2.03.01
2.04
Shall conform to Option 2.01.01 or Option 2.01.02, above, as listed in
NYSDOT Specifications, Materials Section 706.04, with proportionate parts of
cement and air and compressive strength as noted therein.
Repair:
2.04.01
2.05
709-03
709-03
709-02
711-08
712-01
725-02
ASTM A 82
ASTM A 497
ASTM A 496
Drainage units that contain minor defects caused by manufacturer or
mishandling may be repaired. Minor defects shall be considered, as those that
are small, less than 6” in diameter, holes or spalls that do not penetrate deeper
than the steel reinforcement. Repairs shall be made using a concrete repair
material conforming to 701-04 of aforesaid DOT specifications. Repair shall
be able to withstand a moderate blow with a 16 oz. hammer. Any unit that has
a crack that goes completely through the wall, honeycombing, or large spalls,
is not acceptable, and shall not be repaired.
Marking:
2.01.01
The manufacturer shall mark each individual piece with permanent marking
on the inside. The following minimum information shall be listed:
a. Production Testing – Date of manufacture, manufacturer’s logo, and
individual piece ID.
b. End Product Testing – Date of manufacture, Dutchess County DPW Lot
#, Manufacturer Logo, and ASTM Designation (if applicable).
c. For each method, the manufacturer may put any additional information
on the outside.
2.06
Shipping:
2.06.01
3.0
No units will be considered for shipment unless free from defects as noted
under “Repair” in Section 2.03 above, and that all other requirements of this
specification have been met.
MATERIAL REQUIREMENTS (Cast Iron Frames and Grates, Tops):
3.01
Cast Iron Frames & Grates (Castings):
3.01.01
All gratings and frames shall meet the requirements of §715-02, Steel
Castings Grade N-1; or §715-05, Iron Castings, Class No. 30; or Class No.
35 or §715-09, Malleable Iron Castings, Grade 32510 at the Contractor’s `
option. Suitable measures shall be taken to ensure that grates and covers
shall have continuous full and uniform bearing contact with their
corresponding frames and shall be non-rocking when in place and under the
influence of traffic or other loads. Methods suitable to achieve secure nonrocking fits between grates, covers and their corresponding frames include,
but are not limited to:
a.
b.
c.
d.
3.02
Ground mating surfaces
Machined and milled mating surfaces (horizontal and/or vertical)
Matchmarked elements
Locking elements
3.01.02
If match marked elements are utilized, care shall be taken to retain the identity
of the elements in order to correctly match them and assure proper
fit.
3.01.03
Frames, grates, covers or appurtenant parts that fail to meet the requirements of
the specification, shall be rejected and removed from the work site.
Cast Iron Frames and Gates (Fabricated):
3.02.01
The frames, grating and appurtenant parts shall be fabricated from steel
conforming to ASTM A36, AISI grade 1020 Steel, or AISI Grade 1025
steel. Welding or splicing by welding, of any member of the frame or gate,
other than the welds shown on the standard sheets, plans, approved shop
drawings, approved materials details, or in the proposal, shall not be
permitted. Galvanizing shall be in accordance with §719.01 Type I, unless
otherwise indicated. Welding shall comply with the requirements specified
in the New York State Steel Construction Manual, except that radiographic
inspection will not be required.
3.03
Cast Iron Frames and Grates (Construction Details)
3.03.01
4.0
METHOD OF MEASUREMENT:
4.01
5.0
Frames, covers, and grates shall be placed true to line and grade. Covers,
grates and frames shall make firm, full and even bearing on their respective
underlying surfaces and shall be non-rocking under the influence of traffic
or other loads. On all frames, the Contractor shall have the option of
drilling and tapping holes or drilling holes in and welding nuts to the bottom
of the frame to facilitate the stud bolts used to hold down the grate. Unless
otherwise specified, the hole shall be drilled and tapped or the nut welded to
the frame before galvanizing. The threads shall be tapped sufficiently
oversize to conform to ANSI B1.13M Class 6h after galvanizing.
Method of measurement for each catch basin, cast iron frame and grate, shall be the “unit”.
BASIS OF PAYMENT AND MISCELLANEOUS REQUIREMENTS:
5.01
Unit Price/Invoices:
5.01.01
The unit price bid shall be per unit of catch basin + top provided, and shall
include all labor, equipment and materials necessary to complete the work.
Unit price shall also include delivery to Dutchess County DPW maintenance
Facility (Outpost # 2), located at 575 Oak Summit Road, Millbrook, NY.
5.01.02
Invoices shall be submitted in triplicate on a monthly basis for payment and
sent to:
Dutchess County DPW
626 Dutchess Turnpike
Poughkeepsie, NY 12603
5.02
Dimensions:
5.02.01
6.0
Dimensions and details of catch basins shall be in accordance with
NYSDOT Standard sheets DDS-1, DDS-2, and DDS-3.
OTHER MUNICIPALITIES:
6.01
Ordering:
6.01.01
Contractor (Vendor) agrees to offer the same unit price to any Town,
Village or other municipality within the County of Dutchess. However each
Town, Village, or other municipality shall be responsible to submit their
own purchase orders and make their own payments and arrangements. The
County will not be responsible for other than it’s own orders.
7.0
AWARD:
7.01
Basis:
7.01.01
8.0
The award shall be based on the lowest total aggregate unit price of all units
identified to the most responsible vendor. Those
submitting quotations must quote on all items listed.
CONTRACT PERIOD:
8.01
The contract period shall be for an initial one (1) year period, June 22, 2005 to June 21,
2006. The contract may be extended for two (2) additional one (1) year periods upon
mutual consent of the parties, under the same terms and conditions and pricing.
CATCH BASINS (D-355) & CAST IRON FRAMES & GRATES (D-353b)
Catch Basin Type
Catch Basin Sizes
Knock-Out Basin
Knock-Out Basin
Knock-Out Basin
Knock-Out Basin
Knock-Out Basin
Knock-Out Basin
Knock-Out Basin
18” X 18” X 18”
24” X 24” X 24”
24” X 24” X 36”
30” X 30” X 30”
36” X 36” X 48”
30” X 48” X 30”
30” X 48” X 48”
NOTE:
I.D.*
I.D.
I.D.
I.D.
I.D.
I.D.
I.D.
+
Cast Iron Frame
& Grate Sizes
18” X 18”
24” X 24”
24” X 24”
30” X 30”
36” X 36”
30” X 48”
30” X 48”
=
Unit
I.D.
I.D.
I.D.
I.D.
I.D.
I.D.
I.D.
All of the concrete shall test to 4,000 lbs. PSI at 28 days in conformance with all ASTM
C-478-68 cure rate of 28 days.
* I.D. = Inside Diameter