Western Transmission Main Phase 4B - St. Charles County, MO

The Public Water Supply District No. 2 of St. Charles County is seeking sealed bids for the construction of a major water transmission main (Phase 4B). The work includes installing approximately 7,435 linear feet of 30‑inch unrestrained DIP water main, 3,352 linear feet of 30‑inch restrained DIP water main, and 500 linear feet of 42‑inch steel casing installed by jack‑and‑bore beneath the Norfolk Southern Railroad and Highway 70. The scope also covers all associated appurtenances, valves, hydrants, and two valve vaults. Bidders must provide a 5 % bid security, comply with Missouri prevailing wage rates for Warren County, adhere to state immigration laws, and submit an OSHA‑approved 10‑hour safety program. The contract will be awarded to the most responsive, responsible bidder submitting the lowest responsive bid. • 7,435 LF of 30‑inch unrestrained DIP water main • 3,352 LF of 30‑inch restrained DIP water main • 500 LF of 42‑inch steel casing (jack‑and‑bore) under railroad and highway • Complete set of valves, hydrants, and two valve vaults, with prevailing‑wage and safety‑program requirements.