The Chelmsford Water District is seeking a qualified contractor to replace and upgrade its transmission and water mains. The scope includes installing roughly 3,700 ft of 8‑inch ductile‑iron water main, about 40 new water service connections, bypass piping, 1,100 ft of 10‑inch ductile‑iron transmission pipe, 7,600 ft of 10‑inch HDPE transmission pipe, and modifying the Davis Street valve vault, with associated paving work. The contractor must complete the major construction within 214 consecutive calendar days, followed by a 30‑day final paving period, and comply with Massachusetts prevailing‑wage and payroll reporting requirements. A 5 % bid security is required. • Install 3,700 ft of 8‑in DI water main and 40 service connections • Install 1,100 ft of 10‑in DI transmission pipe plus 7,600 ft of 10‑in HDPE transmission pipe • Modify Davis Street valve vault and perform initial and final paving within a tight schedule • Must meet state prevailing‑wage rules and submit payroll documentation • Bid deadline March 11 2026 1:00 PM; documents available from February 11 2026