Howard Hanson Dam (HHD) Drain Cleaning

This solicitation from the Department of the Army Corps of Engineers Engineering District Seattle seeks drainage cleaning services at Howard Hanson Dam in Ravensdale, Washington. The base requirement is for a contractor to develop an outlet tunnel drain cleaning work plan and perform the cleaning. Optional tasks include additional outlet tunnel, spillway, and embankment drain cleanings. Quotes are due by June 12, 2020 and will be evaluated based on price and the quoter's experience cleaning government-owned dam drains and seepage drains.

The acquisition is set aside for total small business. The primary NAICS code is 562910 for remediation services, with a place of performance in Ravensdale, Washington. The solicitation seeks cleaning of 159 floor drains in the outlet tunnel using downhole cameras. Optional requirements include inspecting and cleaning 50% of spillway drains, selecting additional drains in the outlet tunnel and spillway for cleaning based on sediment levels, and cleaning horizontal embankment drains in the spillway, all to be completed between August and October 2020. Amendments were issued to change the set aside designation and extend the response deadline.