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  5. ›Western Transmission Main Phase 2C - St. Charles County, MO

Public Water Supply District No. 2 of St. Charles County·Missouri

Western Transmission Main Phase 2C - St. Charles County, MO

Closes 3/31/2026$2M – $4MInvitation for Bid
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Description

Western Transmission Main Phase 2C is a water‑utility construction project that will extend a water main along Highway Z and Highway D in New Melle, Missouri. The contractor must install approximately 5,422 linear feet of 30‑inch ductile‑iron water main, 936 feet of 30‑inch restrained‑joint ductile‑iron water main, 192 feet of 36‑inch HDPE water main, and associated appurtenances, including connections to existing mains at both ends. The bid is sealed, with a 5 % bid bond required, and all work must comply with prevailing wage rates, Missouri immigration laws, and OSHA safety program requirements. • Install 5,422 LF of 30‑in. ductile‑iron water main and related fittings. • Install 936 LF of 30‑in. restrained‑joint ductile‑iron main and 192 LF of 36‑in. HDPE main. • Provide all necessary connections, appurtenances, and compliance with prevailing‑wage and OSHA regulations.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Richard McGhay(Director of Public Works)

[email protected]

(314) 354-7364

Key dates

Opened
2/24/2026
Questions due
3/23/2026
Pre-bid meeting
3/10/2026
Closes
3/31/2026

Last updated

Details

Type
Invitation for Bid
Industry
Water Management and Sanitation
NAICS
237110
Solicitation №
20-003

Budget estimate

$2,000,000 – $4,000,000

The contract will likely be valued in the low‑ to mid‑multi‑million‑dollar range. Assuming an average installed cost of $350‑$600 per linear foot for large‑diameter ductile‑iron and HDPE pipe (material + labor + appurtenances), the 5,422 LF of 30‑in. DI alone could be $1.9‑$3.3 M. Adding the 936 LF of restrained‑joint DI, 192 LF of HDPE, and related fittings pushes the total to roughly $2.5‑$4.5 M. Therefore a reasonable estimate is $2 M at the low end to $4 M at the high end, with the final figure dependent on exact material prices, site conditions, and prevailing‑wage calculations.

AI estimate from the solicitation

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