South Fork Ten Mile River Habitat Enhancement Project, Phase 2

South Fork Ten Mile River Habitat Enhancement Project, Phase 2

This Project is the third phase of implementation of The Nature Conservancy’s larger reach-wide habitat enhancement program in the lower 1.7 miles of the South Fork Ten Mile River with a goal of increasing survival and populations of coho salmon. This phase includes the following habitat enhancements immediately downstream of the Phase 1 improvements: 1) A long, deep alcove and shallow pond will be constructed to connect to the existing seasonal pond and valley wall wetland complex along the left valley edge; 2) The dry, rarely flooded 1965 gravel deposit on the left bank will be excavated out to create a 1.6-acre, tidal-bore flooded wetland. The wetland surface will be flooded daily during high tides and during nearly every storm event; 3) A small alcove set into a wide, tree-covered gravel bench will be constructed to provide complex, low-velocity, off-channel winter habitat in the upper project reach; and 4) Four accelerated recruitment-type large wood structures will be constructed to increase channel bedform and habitat complexity in the long glide reach. A mix of downed alder, willow slash, and whole redwood trees will be used to form the structures.

Unincorporated area

Mendocino

Northern California