The Lower Powerhouse was located near the mouth of Sequalitchew Creek down in the Canyon. The DuPont Company in ca. 1910 constructed the facility along with some large storage tanks. The flume which came from the pump house to a surge tank , then a 275ft – 300ft long pressure flume pipe to the Powerhouse. During a January winter in 1925 a washout occurred with damaged trestle and flume. A year later a gravel slide occurred and filled the interior up to 10ft deep with gravel. About this time the flume was removed as power became available from the local PUD.
The Lower Powerhouse Low Resolution - High Res available from DuPont Museum
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