Western Transmission Main Phase 4C

The Public Water Supply District No. 2 of St. Charles County is seeking sealed bids for the construction of a new water transmission main (Phase 4C). The work includes installing approximately 12,180 ft of 30‑inch ductile‑iron water main, 160 ft of 48‑inch steel casing beneath two highways (Hwy T and Hwy OO) using jack‑and‑bore methods, and installing associated valves, fire hydrants, air‑relief valves, fittings, and connections to the existing system. All necessary appurtenances, restoration, and incidental work are included. The contract will be awarded to the most responsive, responsible bidder submitting the lowest bid, subject to prevailing wage and immigration compliance requirements. • 12,180 ft of 30‑inch ductile‑iron water main installation • 160 ft of 48‑inch steel casing installed by jack‑and‑bore beneath highways • Installation of butterfly valves, gate valves, fire hydrants, air‑relief valves, and related fittings • Requires compliance with Missouri prevailing‑wage rates, immigration work‑authorization, and a 10‑hour OSHA safety program • Bid submission deadline: 11/19/26 10:00 am (sealed bids)