Attachments.pdf

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Culvert Repairs, Colebrook River Lake, Colebrook, CT
Solicitation number
W912WJ25QA064
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This document is a detailed Statement of Work (SOW) Appendix A for Drainage Culvert Repairs at Colebrook River Dam in Colebrook, Connecticut. The project involves stabilizing and rebuilding outflow structures and drainage channels for four existing drainage culverts, with a construction value between $100,000 and $250,000. Specific work requirements include excavating slopes, removing and reusing existing rip rap, installing gabion baskets, filter fabric, concrete structures, pipe extensions, geotextile, lawn soil, and seeding while maintaining erosion control.

The procurement is a small business set-aside under NAICS code 237310 with a $45 million size standard, specifically for the U.S. Army Corps of Engineers New England District. All vendors must have an active SAM.gov registration at submission, with non-registered vendors being automatically rejected. The technical documentation includes extensive photographic and diagrammatic evidence of existing culvert conditions, proposed modifications, cross-sectional designs, and installation specifications for each of the four culvert locations, providing comprehensive guidance for potential contractors.

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Amendment W912WJ25QA064-0001.pdf PDF
Solicitation - W912WJ25QA064.pdf PDF

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DRAINAGE CULVERT REPAIRS

COLEBROOK RIVER DAM

426A COLEBROOK RIVER RD, COLEBROOK, CT 06021

STATEMENT OF WORK APPENDIX A

Informational Photographs and Diagrams

Figures 1-3: Project and Culvert locations

Figure 4: Typical cross-section of gabion wall construction

Figure 5: Gabion specifications

Figure 6: Geotextile specifications

Figure 7: Illustration of concrete headwall to be used at culvert 3

Figure 8: Typical cross sections of drainage design and rip rap outflow

Figures 9&10: As-built drawings for Culvert one

Figures 11-14: Existing conditions at Culvert one

Figures 15-16: As built drawings for Culverts two and three

Figures 17-24: Existing conditions at Culvert two

Figures 25&26: Existing conditions at Culvert three

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>,,., �, . " J·,,, Figures 29-32: Existing conditions at Culvert four

Figures 33-37: Existing conditions inside concrete riser pipe at Culvert four

Figure 38: Cross section example

Figure 39: Example Culvert 1

Figure 40: Example Culvert 2

Figure 41: Example Culvert 3

Figure 42: Example Culvert 4

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