Murphy Dam Outlet Works Improvements Project, Pittsburg, New Hampshire

The New Hampshire Department of Environmental Services is seeking qualified contractors to replace aging spill‑way valves at Murphy Dam and construct new hydraulic jet‑flow gates, concrete‑encased penstock liner extensions, and a reinforced‑concrete operator platform with heating, a jib crane, and upgraded electrical controls. The work also includes site‑improvement tasks such as road upgrades, erosion control, and selective demolition. The contract will be awarded on a unit‑price basis and will require a 5 % bid bond and full performance/payment bonds after award. • Replace two 84‑inch DOW valves with two 72‑inch jet‑flow gates and new hydraulic operators. • Install concrete‑encased steel penstock liner extensions and build a heated concrete operator platform with a jib crane. • Perform extensive civil works: demolition, grading, erosion control, road improvements, and electrical system upgrades.