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

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 3C). The project involves installing approximately 14,741 linear feet of 30‑inch Class 250 ductile‑iron water main, 337 linear feet of 30‑inch restrained‑joint ductile‑iron pipe, and about 50 linear feet of 42‑inch steel casing installed by jack‑and‑bore methods. All associated appurtenances—including butterfly valves, fire hydrants, air‑release valves, fittings, testing, disinfection, and restoration work—are included. Bidders must provide a 5 % bid security, comply with prevailing wage rates for St. Charles County, submit a Work Authorization Affidavit, and furnish a ten‑hour OSHA construction safety program. • 14,741 ft of 30‑inch ductile‑iron main installation • 337 ft of restrained‑joint pipe and 50 ft of 42‑inch steel casing jack‑and‑bore • Comprehensive appurtenances, testing, disinfection, and restoration; mandatory bid security and prevailing‑wage compliance.