California water rights guide
Funding provided by the State of California Wildlife Conservation Board and The Nature Conservancy
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manly gulch fish passage improvement
Included in the National Fish Habitat Partnership’s 2018 Waters to Watch List
Manly Gulch is a tributary to the Little North Fork of the Big River in Mendocino County. In the 1930’s, a WPA project completely blocked fish passage for steelhead and coho salmon. In 2017, Trout Unlimited’s North Coast Coho Project restored access by restoring and realigning 600 feet of the stream and reconnecting it to the Little North Fork. This improved flow and improved sediment conditions, as well as providing off-channel high flow refugia for juvenile salmonids during high flow conditions. benefiting The project included the creation of a 70-foot long backwater alcove and 530 feet of channel with gravel riffles, pools and large wood cover structure. In addition a new bridge was built over Manly Gulch where it crosses State Park Road.
The project also provided off-channel high-flow refugia for juvenile salmonids during elevated flows in the Little North Fork of the Big River. And it provided access for both juvenile and adult steelhead and coho to more than 4,000 feet of spawning and rearing habitat in the upper reaches of this stream.