Little Goose Dam JFF Discharge Pipe Repair

Owner: US Army Corps of Engineers - Walla Walla District

Starbuck, WA
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January 2015 - March 2015
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Project Details

Advanced American Construction worked with the US Army Corps of Engineers to repair and strengthen the damaged JFF outfall pipe and improve the process piping at the juvenile fish facility at the Little Goose Dam. AAC removed wood debris from the existing juvenile fish facility outfall pipe, removed a section of JFF outfall pipe for paint repair, reinstalled a section of JFF outfall pipe and furnished and installed JFF process piping air vents on the sampling tank and holding tank drain lines. AAC needed to perform dive work downstream of the Little Goose dam, where currents were too strong to allow diving operations. Dive work had to be coordinated to allow a complete lockout of all 8 spillbays, all 6 powerhouse units and the navigational lock. All work was performed on time and on budget.

Project Highlights

  • Removed wood debris that was fouling the existing juvenile fish facility outfall pipe
  • Removed 50' section of JFF outfall pipe for shotcrete and paint repair
  • Reinstalled 50' section of JFF outfall pipe with additional horizontal supports and saddles
  • Furnished and Installed JFF process piping air vents on sampling tank and holding tank drain lines

Project Photos