B13-26 Industrial Park Water Main Replacement

The City of Concord, New Hampshire, is seeking bids for the replacement and upsizing of an existing 8” water main with a new 12” water main, plus related water system appurtenances in Industrial Park Drive. The project includes furnishing and installing zinc-coated, double-cement-lined Class 52 ductile iron water main, temporary bypass water piping, new hydrants, gate valves, fittings, water services, service valves, thrust restraint, testing, disinfection, and connections to the existing water system. The work also includes abandoning, cutting, capping, plugging, removing, and disposing of existing water mains, water services, hydrants, valves, and appurtenances. Key considerations for bidders include: • Replacement of existing water main with a new 12” water main • Installation of temporary bypass water piping and new hydrants • Connection to existing water system • Abandoning and removal of existing water mains and appurtenances • Restoration of turf, driveways, sidewalks, and roadways The project requires bidders to submit a base bid and an add alternate bid for non-zinc pipe. The city reserves the right to reject any or all bids and to waive informalities. • Base Bid: Replacement of existing water main with a new 12” water main, including all related work and appurtenances • Add Alternate 1: Deduct for non-zinc pipe Bidders must submit their bids by July 9, 2026, at 2:00 PM, and must include all required documents, including a bid form, itemized bid sheets, and a 10% bid bond. The city will evaluate bids based on price and other factors, and will award the contract to the bidder deemed to be in the best interest of the city.