Attachment 6 - Steel Post and Cable Fence Specs_0001.pdf
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- Attached to
- BLM-CO - Knowles Canyon CG Improvements
- Solicitation number
- 140L4221Q0007
About this file
This announcement solicits competitive quotes for campground improvement work at Knowles Canyon Campground in Colorado. The Bureau of Land Management seeks a contractor to perform road, parking area, and fence construction, install precast concrete toilets, and construct campsite amenities. The worksite is located 20 miles west of Loma, Colorado within the McInnis Canyons National Conservation Area. The performance period is November 15, 2021 through March 31, 2022. The estimated value is $250,000 to $500,000. Interested small businesses are encouraged to attend an optional pre-bid site visit on March 25, 2021. Quotes are due by responding to the contracting officer with all required forms and documentation, including a bid bond and technical proposal, by the specified deadline.
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Text version
Knowles Campground Improvements and Expansion KNOWLES
SECTION 05 50 20
STEEL POST AND CABLE FENCE
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN WELDING SOCIETY (AWS)
AWS D1.1/D1.1M (2015; Errata 1 2015; Errata 2 2016) Structural Welding Code - Steel
ASTM INTERNATIONAL (ASTM)
ASTM A53/A53M (2018) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A500/A500M (2018) Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
PART 2 PRODUCTS
2.1 STEEL PIPE
Provide in accordance with ASTM A500/A500M or ASTM A53/A53M as applicable.
Pipe shall be either:
a. 3.5 inch (3 inch nominal), schedule 80 steel.
b. 2-7/8 inch drill pipe, 0.362 inch wall thickness, steel.
Used pipe may be supplied for the steel posts and caps; however pipe must be clean of excessive oil, grease, rust, etc. Used pipe must be straight and have no dents, bends, or obvious defects. All other materials shall be new.
2.2 PAINTING
Painting is not required.
2.3 WIRE ROPE
9/16 inch diameter, 6x26 Warrington or Seale strand configuration.
PART 3 EXECUTION
3.1 GENERAL INSTALLATION REQUIREMENTS
Verify all field dimensions prior to fabrication. Set steel pipe vertical and plumb. Layout the fence line continuous and straight, make curves
SECTION 05 50 13 Page 1
Knowles Campground Improvements and Expansion KNOWLES consistent and smooth. Drive posts without disturbing in-situ soil. If Contractor chooses to excavate soil or rock to facilitate post installation, then a minimum 18 inch diameter hole shall be excavated to allow compaction of backfill material. Backfill material shall be moisture conditioned and backfilled in 6 inch lifts. Each lift shall be thoroughly compacted.
3.2 WELDING
Perform welding in accordance with AWS D1.1/D1.1M
3.3 WIRE ROPE
Wire rope shall be installed with as few splices as practical.
3.4 GAPS IN THE FENCE - ACCESS
There shall be a +/- 4 foot gap in the fence at every campsite and at the day use area to allow access. There shall be a +/- 10 foot gap in the fence at the toilet buildings to allow access for toilet users and for pump truck access.
-- End of Section --
SECTION 05 50 13 Page 2
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