Swamp Creek Fish Passage Improvement Project, Siskiyou County
- SCH Number
- Public Agency
- Regional Water Quality Control Board, Region 5 (Central Valley), Redding
- Document Title
- Swamp Creek Fish Passage Improvement Project, Siskiyou County
- Document Type
- NOE - Notice of Exemption
- Document Description
- This project proposes to improve fish passage conditions at two culverts along Swamp Creek, located in a remote portion of Siskiyou County, California. This project proposes to reduce the sediment load, improve fish passage and improve the quality of instream and riparian fish habitat. The project goals include the following: stabilize the stream channel, reduce vertical erosion, improve fish passage and improve connectivity between isolated sections of intermittent stream corridor. Based upon data from field surveys, the project requires construction of a series of grade control structures (i.e. boulder weirs or cross vanes), and revegetation. The boulder weirs will be designed to redirect flow toward the center of the channel just below two culvert road crossings. Several weirs will be required to properly dissipate the energy below each culvert. The weirs will be used to step down the water surface to the existing grade downstream. The project will benefit the McCloud River redband trout ("McCloud redband"; oncorhynchus mykiss ssp.) which is a unique subspecies of redband trout native to the Upper McCloud River drainage of Shasta County. Swamp Creek is considered to be a key component of the designated redband trout refugium. In an effort to prevent Federal listing of the redband trout as a threatened species, State and Federal resource agencies in cooperation with private landowners have undertaken actions to address degradation of such refugium. Fish passage at road crossings is a major biological concern in several redband streams. Restoration of the fish passage capability at these sites is a high priority of Federal and State resource agencies.
- Contact Information
Regional Water Quality Control Board, Region 5 (Central Valley)
415 Knollcrest Drive, Suite 100
Redding, CA 96002
Phone : (530) 224-4783
Notice of Exemption
- Exempt Status
- Categorical Exemption
- Type, Section or Code
- Section 15333
- Reasons for Exemption
- Project is a creek restoration project/fish passage improvement project of less than five acres in size and will benefit the McCloud River redband trout ("McCloud redband"; oncorhynchus mykiss ssp.) which is a unique subspecies of redband trout native to the Upper McCloud River drainage of Shasta County. There are no hazardous materials at or around the project site that may be disturbed or removed.
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