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  5. ›Western Transmission Main Phase 3C - St. Charles County, MO

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

Western Transmission Main Phase 3C - St. Charles County, MO

Closes 10/15/2026$2M – $4MInvitation for Bid
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Description

This sealed‑bid project calls for the design‑build construction of a new water transmission main in St. Charles County, Missouri. The scope includes installing approximately 14,741 ft of 30‑inch Class 250 ductile‑iron pipe, 337 ft of restrained‑joint pipe, about 50 ft of 42‑inch steel casing installed by jack‑and‑bore, and all associated appurtenances such as valves, hydrants, fittings, testing, disinfection, and restoration. The contractor must also provide a ten‑hour OSHA safety program, comply with prevailing‑wage requirements, Missouri immigration laws, and submit required bid security.

Attached files

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

Contact

Richard McGhay

[email protected]

(314) 354-7364

Key dates

Opened
8/25/2026
Pre-bid meeting
9/8/2026
Closes
10/15/2026

Last updated

Details

Type
Invitation for Bid
Industry
Water Management and Sanitation
NAICS
237110
Solicitation №
22-007

Budget estimate

$2,000,000 – $4,000,000

Based on typical costs for 30‑inch Class 250 ductile‑iron water mains (≈ $150‑$200 per linear foot) plus appurtenances, testing, and labor, the total contract value is likely in the $2‑$4 million range. The large pipe quantity and required safety/prevailing‑wage compliance drive the higher end of the estimate.

AI estimate from the solicitation

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