San Pablo Dam Seismic Upgrade

6 Documents in Project

Summary

SCH Number
2005092021
Lead Agency
East Bay Municipal Utility District
Document Title
San Pablo Dam Seismic Upgrade
Document Type
NOP - Notice of Preparation
Received
Present Land Use
Contra Costa County designates the project area as Watershed lands, with General Agriculture District and Exclusive Agriculture District zoning.

Document Description
EBMUD completed a study of the San Pablo Dam in coordination with the California Division of Safety of Dams in 2004. The study determined that the hydraulic fill material in the embankment and the alluvium foundation underlying the embankment are susceptible to liquefaction. The study showed hat the dam would slump and could decrease in height by as much as 35 feet in a magnitude 7.25 earthquake on the Hayward Fault, allowing water to flow over the top, resulting in downstream flooding. The San Pablo Dam Seismic Upgrade would improve the dam such that it would meet seismic safety requirements by improving foundation materials in place and adding a downstream buttress.

Contact Information
Jason Munkres
East Bay Municipal Utility District
Lead/Public Agency
375 Eleventh Street, MS 701
Oakland, CA 94623-1055

Phone : (510) 287-0106

Location

Cities
Orinda Richmond San Pablo
Counties
Contra Costa
Cross Streets
San Pablo Dam Road
Total Acres
~70
Waterways
San Pablo Reservoir, Various Creeks
Township
1N
Range
4W
Section
12

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities
Local Action
Other
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Cultural Resources Cumulative Effects Drainage/Absorption Flood Plain/Flooding Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Noise Public Services Schools/Universities Solid Waste Transportation Vegetation Wetland/Riparian Wildlife Energy
Reviewing Agencies
California Department of Conservation (DOC) California Department of Health Care Services (DHCS) California Department of Parks and Recreation California Department of Transportation, District 4 (DOT) California Native American Heritage Commission (NAHC) California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB) Central Valley Flood Protection Board Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Divison of Financial Assistance California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

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.

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