Specifications.pdf
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- TROUGHS, Steel Custom, BLM ID
- Solicitation number
- 140L2625Q0072
About this file
This document is a detailed technical specification for Stock Water Troughs, issued by the United States Department of the Interior's Bureau of Land Management for the Twin Falls District in Idaho. The specification provides comprehensive requirements for manufacturing 14-gauge steel water troughs, including material specifications, fabrication standards, and quality assurance criteria. Key technical requirements include using ASTM-specified steel sheets, hot-dip galvanized coating, welded construction with full welds, and precise dimensional tolerances, such as rejecting troughs warped more than 1/2-inch between diagonal measurements. The troughs must be watertight, have undamaged threaded couplings, and include additional components like a bird ladder and lid. Fabrication standards mandate continuous welded edges, smooth corner joints, and post-fabrication galvanizing in accordance with specific ASTM standards. The document also outlines inspection, testing procedures (including hydrostatic testing), and specifies that payment will be made on a per-trough basis for galvanized stock water troughs.
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DESCRIPTION/SPECIFICATIONS
DIVISION 17 SECTION ID050-17510
SUPPLIES AND SERVICES STOCK WATER
TROUGH
PART 1: GENERAL
1.01 WORK INCLUDED:
A. Description of Work: Furnish labor, materials, and equipment to manufacture and deliver those items indicated on the bid schedule. Items shall be constructed in accordance with these specifications and as shown in the drawings.
B. Quality assurance:
1. The troughs shall be watertight.
2. Couplings shall have threads free of damage.
3. Any trough warped more than ½ - inch between any diagonal measurement will be rejected.
1.02 REFERENCES:
A. Federal Specifications:
TT-P-641G Primer Coatings, Zinc Dust-Zinc Oxide (for galvanized surfaces)
B. American Society for Testing Materials:
ASTM A6/A6M-87 General Requirements for rolled Steel Plates, Shapes, Sheet Piling, and Bars for Structural Use.
ASTM A36/A36M-87 Specifications for Structural Steel
ASTM A120-84 Pipe, Steel, Black, and Hot-Dipped Zinc-Coated (Galvanized)
Welded and Seamless for Ordinary Use
ASTM A123-84 Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
ASTM A569/A56 Steel, Carbon (0.15 Maximum, Percent), Hot-Rolled Sheet and
Strip Commercial Quality
ASTM D3363 Film Hardness by Pencil Test
ASTM D3359 Measuring Adhesion by Tape Test
ASTM D-522 Mandrel Bend Test of Attached Organic Coatings
C. American Welding Society:
D9.1-84 Welding of Sheet Metal
1.03 SUBMITTALS:
A. Manufacturer’S Literature: Submit three copies of the Manufacturer’s Literature for each Coating used.
PART 2: PRODUCTS
2.01 MATERIALS:
A. Troughs: Trough material shall be 14-Gauge Steel Sheet. Trough and appurtenances shall meet the requirements of ASTM A6/A6M-87, ASTM A36/A36M-87, and ASTM
A569/A56. Galvanized steel sheet, 14-gauge shall be used when not using the hot-dip method of fabrication.
B. Coatings: Troughs, and braces shall be painted or galvanized as per pay item of PART
4:.
1. Zinc (Hot-Dipped Galvanized) Coating after fabrication: Troughs galvanized after fabrication shall have galvanized trough braces. Trough and appurtenances shall meet requirements of ASTM A123-83. Welded or damaged galvanized coating shall be painted with a zinc-rich paint meeting the requirements of F.S. TT-P641G.
C. Trough Brace: Trough brace shall meet the requirements of ASTM A6/6M-87 and
ASTM A36M-87.
D. Fasteners: Bolts, washers, and nuts shall be cadmium-plated or galvanized. Bolts, washers, and nuts shall be 5/16 x 1 inch with hex head.
E. Piping: Piping shall meet the requirements of ASTM A120-84.
F. LID: LID shall be 14-Gauge Steel Sheet. Trough and appurtenances shall meet the requirements of ASTM A6/A6M-87, ASTM A36/A36M-87, and ASTM A569/A56.
Galvanized steel sheet, 14-gauge shall be used when not using the hot-dip method of fabrication.
G. Bird Ladder: ¾” number 9 expanded metal galvanized
2.02 FABRICATION
A. Edges: Edges shall be continuous around corners with welds ground smooth.
B. Bends: Metal shown bent (broke) shall be shaped so as to fit adjoining piece with a minimum gap.
C. Ends: Fabricate ends out of one piece.
D. Welds: Trough and pipe-couplings shall be welded with full welds and be water tight.
Welds shall meet the requirements of AWS D9.1-84.
E. Seams: Fabricate troughs out of steel sheets as large as practical to reduce welded seams to a minimum. Set seams flush with adjoining piece to provide smooth butt corner joints.
F. Galvanizing: Troughs and appurtenances shall be hot-dipped galvanized after fabrication in accordance with ASTM A123-84. Threads on couplings shall be cleaned of excess galvanizing to facilitate unobstructed connection of other fittings. If the trough is manufactured from galvanized steel sheet, this fabrication is not necessary.
G. Stacking: A minimum of Two 2" X 2" wood shims shall be placed across the inside bottom of troughs before stacking to prevent troughs from wedging tightly together and hindering separation.
PART 3: EXECUTION
3.01 INSPECTION:
A. Shop or field inspection will be conducted. If welds are found to be defective, they shall be removed by chipping with a round nosed tool, or by arc or oxygen gouging, and then rewelding. Sandblasting, welding, and painting may require testing by a certified laboratory.
3.02 TESTING:
B. The Stock Water Troughs shall be hydro-statically tested by filling the troughs with water to the maximum water level.
PART 4: MEASUREMENT AND PAYMENT
4.01 METHOD OF MEASUREMENT:
A. Units: The quantity of Stock Watering Troughs measured and paid for will be the actual number fabricated and accepted.
4.02 BASIS OF PAYMENT:
A. Payment: Prices and payment will be full compensation for the work described in the section. Payment will be made under:
Pay Item Pay Unit
ID-17510(4) Stock Water Trough (Galvanized) . . . . . . . . . . . . . . . . . . . . . . . . . . . .Each
END OF SECTION
| trough Specs |
| Trough spec dwg |
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