Electrical Rebuild, Black Rock Lake Dam, Thomaston, Connecticut
The U.S. Army Corps of Engineers, New England District plans to issue an Invitation for Bids in July 2026 for electrical feeder upgrades at Black Rock Lake Dam in Thomaston, Connecticut, as a 100% Small Business Set-Aside under NAICS 238210 with a $19M size standard. The period of performance is approximately 180 days, and the estimated project magnitude is between $750,000 and $1,250,000. Work includes replacing the existing overhead dam feeder from the project office to a designated manhole with a buried conduit duct bank, and removing/replacing the gate tower feeder, fused disconnect, manual transfer switches, and gate tower electrical panels/transformer. The existing service entrance circuit breaker and enclosure will remain, while a new propane genset and underground propane tank/line will be installed in the project office parking lot to power both the project office and gate tower during utility loss. A new automatic transfer switch will feed existing panel MDP-1 from either the utility feeder or the new propane genset, with the propane tank sized for five days of runtime.