Geyserville Bank Stabilization, Riparian Revegetation, and Fish Habitat Enhancement Project
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Summary
- SCH Number
- 2011082002
- Lead Agency
- Sotoyome Resource Conservation District
- Document Title
- Geyserville Bank Stabilization, Riparian Revegetation, and Fish Habitat Enhancement Project
- Document Type
- MND - Mitigated Negative Declaration
- Received
- Present Land Use
- Land Intensive Agriculture
- Document Description
- The project site is located on the left (eastern) bank of the Russian River, some 300 ft. downstream of Geyserville Bridge in Sonoma County, CA. Historical aerial photographs show that the site has been relatively stable in recent decades until works to protect the Geyserville bridge redirected flow against this bank, while expanding the eastern edge of the massive gravel bar that now occupies most of the river in this location. Severe erosion to the project site has occurred over the last year. Site survey has revealed freshly-exposed vertical banks behind many fallen mature trees (see site photos) with a large section now completely lacking riparian vegetation. From inspection of a section of the exposed bank, it appears that the original sandy bank was at some point in the past, stabilized with debris, mostly concrete slabs mixed with construction debris. The aggressive erosion process is likely to continue, contributing many more tons of fine sediment (alluvial sand and levee topsoil) along with construction debris into the river, together with several more mature trees that are now close to the edge of the bank. The length affected by the erosion and the proposed work is 497 feet. If the erosion is allowed to continue for even one more winter there is indication that the existing healthy riparian will continue to erode another 500 feet downstream.
- Contact Information
-
Kara Heckert
Sotoyome Resource Conservation District
P.O. Box 11526
Santa Rosa, CA 95406
Phone : (707) 569-1448
Location
- Coordinates
- 38°42'45.78"N 122°53'38.03"W
- Counties
- Sonoma
- Total Acres
- 0.772
- Parcel #
- 140-240-013
- State Highways
- Hwy 128
- Waterways
- Russian River
- Township
- 10N
- Range
- 9W
- Other Location Info
- City/Nearest Community: Geyserville
Notice of Completion
- Review Period Start
- Review Period End
- Local Action
- Site Plan
- Project Issues
- Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Geologic/Seismic Minerals Noise Soil Erosion/Compaction/Grading Traffic/Circulation Vegetation Water Quality Wetland/Riparian Land Use
- Reviewing Agencies
- California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Department of State Parks, Division of Boating and Waterways California Department of Transportation, District 4 California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, North Coast Region 1 California State Lands Commission Central Valley Flood Protection Board Department of Water Resources Resources Agency
Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.