Bid 22-15 Rte 202A WATER MAIN EXTENSION AND STORAGE TANK

The city of Rochester, NH is seeking a design‑build contractor to install a 256‑k‑gallon composite elevated water storage tank and extend the Route 202A water main, including associated civil works, utility coordination, and optional homeowner‑service items. The scope covers excavation, trenching, ductile‑iron and HDPE water‑main installation, tank erection, traffic control, storm‑water management, pavement work, and environmental mitigation. Several alternates provide optional upgrades and homeowner‑service components. • Base scope: 256 k‑gal elevated storage tank, water‑main extension from Fillmore Blvd to tank site, automatic flushing system, and bridge over stream. • Alternates: Optional “Alternate A” items and “Alternate B” (Dustin Homestead water‑service) covering additional ductile‑iron pipe, fittings, valve, ledge excavation, interior plumbing, and driveway paving. • Engineering & quality requirements: NH‑licensed PE design, compliance with IBC 2015, AWWA D103‑19, NSF‑61, extensive testing, and warranties (1‑year workmanship, up to 5‑year cathodic‑protection). • Procurement constraints: Only bidders pre‑qualified under RFQ 21‑36 may submit; the water‑tank must be supplied by Statewide Aquastore, Inc. • Schedule highlights: Mandatory pre‑bid conference on 11 Aug 2021, bid receipt deadline 8 Sep 2021 5 pm, bid opening 9 Sep 2021 2:30 pm.