Northwest Levee Improvements and Stone Road Seepage Reduction Project

4 Documents in Project


SCH Number
Lead Agency
Bethel Island Municipal Improvement District (BIMID)
Document Title
Northwest Levee Improvements and Stone Road Seepage Reduction Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
general/heavy ag, single fam high-density res, water rec, flood hazard combining dist. overlay

Document Description
The project would involve construction of improvements along the Taylor Slough levee between stations 0+00 and 130+00 (site 1), and seepage reduction improvements along the Sand Mound Slough levee between levee stations 340+00 and 450+00 (site 2). Site 1 levees would be improved to meet Bulletin 192-82 criteria, including raising and widening the levee crest, waterside slope armoring, landside slope flattening, installation of a levee crown all-weather road, and geotechnical remediation. Site 1 would also include habitat creation along 8,000 lf of the land and waterside of the levee. Site 2 may include drainage blanket and ditch construction, monitoring well installation, and subsurface drainage enhancements to address ongoing seepage issues along Windsweep and Stone Roads. The project would take approx 2 years to construct.

Contact Information
Regina Espinoza
Bethel Island Municipal Improvement District
Lead/Public Agency
3085 Stone Rd PO Box 244
Bethel Island, CA 94511

Phone : (925) 684-2210


38°01'41"N 121°38'26"W
Contra Costa
Cross Streets
Canal Rd, Stone Rd, Bethel Island Rd, Windsweep Rd and Gateway Rd
Total Acres
Parcel #
Dutch, Sand Mound, Taylor and Piper Sloughs
Other Location Info
Bethel Island

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (levee and drainage improvements)
Local Action
flood control
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Cultural Resources Cumulative Effects Drainage/Absorption Flood Plain/Flooding Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services Recreation Transportation Tribal Cultural Resources Vegetation Wetland/Riparian
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW) California Department of Parks and Recreation California Department of Transportation, District 4 (DOT) California Native American Heritage Commission (NAHC) Central Valley Flood Protection Board Delta Protection Commission Delta Stewardship Council Department of Fish and Wildlife, Marine Region Department of Water Resources Office of Emergency Services, California Office of Historic Preservation Resources Agency California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB) California Department of Conservation (DOC) California State Lands Commission (SLC)

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 or via phone at (916) 445-0613.

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