7-1.2 FCE133675-1 31 36 00 - Gabions.pdf
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- Solicitation number
- SLCo FCE133675-1 Rose Creek Gabion Baskets Const Materials - RFC
- Issued by
- Salt Lake County, Utah
About this file
This is a specification document for gabion baskets and rock fill materials issued by Salt Lake County Public Works Flood Control in Utah for the Rose Creek bank stabilization project. The solicitation requests construction materials including Class III riprap with a D50 of 12 inches, 4-8 inch rockfill, and galvanized steel gabion wire baskets to protect an existing maintenance road along Rose Creek from erosion. The project covers 619 linear feet of bank stabilization measures, with construction anticipated between September 2026 and November 2026. Suppliers may bid on any portion of the materials without providing a complete bid across all line items; individual bid items may be awarded separately at the County's discretion. This procurement is for material supply only, with installation to be performed by Salt Lake County crews.
The specification document derives all material standards from the 2025 APWA Utah Chapter Manual of Standard Specifications, modified exclusively for supply and delivery requirements excluding installation clauses. Gabion wire baskets must meet specific requirements including uniform hexagonal wire mesh in a 2 or 3-1/2 twist pattern, galvanized steel wire classified as Class 3 per ASTM A641, fabric gauge US 11 after galvanization, tensile strength of 60,000-75,000 psi, and maximum elongation of 12 percent. Stone materials must be hard, durable, and graded between 4 and 8 inches in diameter with 4 inches as the minimum dimension on any side. Aggregate materials should be available for pickup by County operations crews during normal business hours, while gabion baskets must be delivered to the County operations yard. Payment for riprap and rock fill will be based on actual quantities required, which may vary from estimated amounts provided.
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Text version
Modification of
GABIONS
31 36 00 - 1
SECTION 31 36 00
This specification is modified from APWA Standard Specification Section 31 36 00 to apply to the supply and delivery of materials (without installation). In cases of conflict between this specification and APWA Section 31 37 00, this specification shall govern.
PART 1 GENERAL
1.1 GENERAL
A. This section covers furnishing wire mesh gabion baskets and rock fill materials in accordance with these specifications.
1.2 REFERENCES
A. The latest edition of the following publications form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.
B. American Society for Testing and Materials (ASTM) ASTM A-313 Chromium-Nickel Stainless And Heat-Resistant Steel Spring Wire ASTM A-641 Zinc-Coasted (Galvanized) Carbon Steel Wire ASTM A-764 Steel Wire, Carbon, Drawn Galvanized and Galvanized at Size for Mechanical Springs
1.3 SUBMITTALS
A. The following shall be submitted:
1. Manufacturer's product data showing gabion wire twist or welded pattern, components to be used, erection and component tolerances, typical construction details, and construction procedures.
2. Design criteria recommended by manufacturer.
PART 2 PRODUCTS
2.1 MATERIALS
A. Gabions: Uniform hexagonal wire mesh woven in two (2) or 3-1/2 twist pattern with openings fabricated in such a manner as to be non-raveling and designed to provide required flexibility and strength. Wire mesh shall have deformability sufficient to permit a minimum mesh elongation equivalent to 10 percent of the unstretched length of the mesh test section without reducing the gage or tensile strength of the individual wire strands to values less than those for similar wire, one (1) gage smaller in diameter.
B. Wire: Galvanized steel, Class 3, ASTM A641:
1. Fabric: US gage 11 after galvanization.
2. Selvedges: US gage 9.
3. Binding and Connecting: US gage 13-1/2.
4. Tensile Strength: 60,000 - 75,000 (psi).
5. Elongation: 12 percent maximum.
D. Fasteners: Resistant to a force of at least 900 pounds while still remaining in a locked and closed position:
Modification of
31 36 00 - 2
1. Galvanized, ASTM A764, Finish I, Class I, Type 3 with the same weight of coating as specified in ASTM A641.
E. Stone: Hard, durable, graded from four (4) inches to eight (8) inches diameter. Four inches shall be the smallest dimension on any side of the stone.
PART 3 EXECUTION
NOT APPLICABLE
END OF SECTION
| PART 1 GENERAL |
| 1.1 GENERAL |
| A. This section covers furnishing wire mesh gabion baskets and rock fill materials in accordance with these specifications. |
| 1.2 REFERENCES |
| A. The latest edition of the following publications form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only. |
| B. American Society for Testing and Materials (ASTM) |
| 1.3 SUBMITTALS |
| A. The following shall be submitted: |
| 1. Manufacturer's product data showing gabion wire twist or welded pattern, components to be used, erection and component tolerances, typical construction details, and construction procedures. |
| 2. Design criteria recommended by manufacturer. |
| PART 2 PRODUCTS |
| A. Gabions: Uniform hexagonal wire mesh woven in two (2) or 3-1/2 twist pattern with openings fabricated in such a manner as to be non-raveling and designed to provide required flexibility and strength. Wire mesh shall have deformability sufficient t... |
| B. Wire: Galvanized steel, Class 3, ASTM A641: |
| PART 3 EXECUTION |
| END OF SECTION |
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