- Fish Habitat Construction Mitigation
Eel River, Redcrest, CA (1999)
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To protect fish habitat along a side channel of the Eel River, a channel
had to be constructed through 200' of dry gravel bar and 100' out into
the river. To isolate the work area, three 1' x 100' AquaDams® were
placed in a crescent shape out into the wide and shallow Eel River.
Notice the brown contained water.
A canal had to be dug out into the middle of the river so that an
adequate flow of water could reach the side channel. To isolate the
work area, the AquaDams® extended far out into the shallow, flowing
river. The 300' of AquaDams® took approximately 2 hours to install.
To get the needed flow, a large mouth had to be excavated at the
end of the channel. The dirty water caused by the excavation was
totally isolated from the river.
AquaDams® can be turned to form virtually any configuration.
A view of the other end of the channel, where it intersects the
side channel with a large fish population. Upstream, the channel
will need to be blocked off for construction purposes. This will
isolate over a mile of stream channel, causing it to dry up. A
water channel had to be dug to supply this stretch of river with
the needed water.