South Fork Ten Mile River Habitat Enhancement Project, Phase 2


SCH Number
Public Agency
California State Coastal Conservancy (SCC)
Document Title
South Fork Ten Mile River Habitat Enhancement Project, Phase 2
Document Type
NOE - Notice of Exemption
Document Description
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.

Contact Information

Joel Gerwein
Agency Name
California State Coastal Conservancy
Job Title
North Coast Program Deputy Manager
Contact Types
Lead/Public Agency


Unincorporated area
Northern California
Cross Streets
Camp 2 Ten Mile Road near Hwy 1
Total Acres
State Highways
SR 1
South Fork Ten Mile River

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Section 15333
Reasons for Exemption
This restoration project does not to exceed five acres in size and will assure the restoration, enhancement, and maintenance of coho salmon habitat.
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