Seymour No. 4 Dam Improvements

The Seymour No. 4 Dam Improvements project, managed by the Connecticut Department of Energy and Environmental Protection, involves comprehensive structural upgrades to a dam located in Oxford, Connecticut. The scope of work includes replacing the existing spillway with a concrete drop inlet structure featuring a 48-inch discharge pipe and an energy dissipator, as well as installing a new 16-inch outlet pipe controlled by a stainless steel slide gate. Additional technical requirements include installing a new valve and extension stem on the existing low level outlet, constructing a 100-foot auxiliary spillway with a concrete core wall, and raising the crest by one foot while repairing eroded areas. Site work consists of clearing trees from the embankments and left dike, filling the downstream slope near the new spillway, and placing riprap on the upstream slope. This solicitation, identified as DS-202506378-01EA, requires electronic bid submission through CTSource by October 6, 2026. Bidders must be registered with CTSource and provide a bid bond of 10 percent. The contract mandates strict adherence to personnel certifications, requiring that identified staff be the ones assigned to the project, with any changes subject to agency approval. Bids must remain valid for 90 days following the closing date. The procurement process includes mandatory pre-bid meeting requirements and specific technical specifications for materials and construction as detailed in the project drawings and addenda.