Agreement No. 2010-0125-R4; Silveira Bank Stabilazation Project

Summary

SCH Number
2010118013
Lead Agency
Planning and Research, Office of (Office of Planning and Research)
Document Title
Agreement No. 2010-0125-R4; Silveira Bank Stabilazation Project
Document Type
NOE - Notice of Exemption
Received

Document Description
The proposed Project would restore approximately 35 feet of the Garden Creek stream bank that was damaged by high in flows in 2009. Work is anticipated to occur when the stream has ceased to flow, but any water present would be diverted through a pipe or pumped around the site. A gravel bar directing flow toward the damaged bank would be removed from the channel. A toe trench would be placed along the damaged bank and one (1) row of rock slope protection (RSP) boulders would be placed in the trench. Imported soil would be placed over the RSP to create a 2:1 (horizontal:vertical) slope and provide suitable substrate for vegetation. Total fill, including RSP and imported soil, would be approximately 46.3 cubic yards. Gravel from the gravel bar may be used to fill in the around the RSP. The bank would be revegetated with native seed mix and willow stakes. Natural fiber erosion control fabric would be secured to the bank for erosion control. Equipment used will include a backhoe, screened trash pump if needed for dewatering the site, sand bags, and hand tools.

Contact Information
Mike Hill
California Department of Fish and Game
Central Region 1234 E. Shaw Avenue
Fresno, CA 93710

805 489 7355

Location

Cities
San Luis Obispo
Counties
San Luis Obispo

Notice of Exemption

Exempt Status
Other
Type, Section or Code
C: 33; S: 15333
Reasons for Exemption
This Project would reduce sedimentation and enhance riparian and aquatic habitat in Garden Creek and has no potential for significant environmental effects if completed under the protective features included in Stream Alteration Agreement No. 2010-0125-R4.
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