- Fish Habitat Restoration
Cascade Mountains, OR (2000)
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This was a joint venture in Oregon between the Dept. of Fish & Game,
US Army Corps of Engineers, US Forest Service, and the Bureau of Reclamation
to improve the habitat of this stream for endangered salmon. An 8' x 100'
closed-ended AquaDam® was used.
Due to the extreme angle of the hillside where the AquaDams® had to start, a 4' x 40' closed-ended
backup AquaDam® had to be placed behind it. Notice the white pipe which runs underneath the 8' high AquaDam®.
This allowed the water flow entering the pool to pass through.
The work area has been dewatered. This picture is looking straight down the bank
of a major road that is leaking water through its
foundation. During summertime low flows, this vital habitat pool, teeming with thousands
of fish, could no longer be regulated because of the severe leakage.
A trench will be dug and filled with soil that will seal the foundation of the roadway to
stop the leakage. The man-made culvert gates that extend underneath the road can open and
shut to regulate the water flow.