Northwest Levee Improvements and Stone Road Seepage Reduction Project

2 Documents in Project

Summary

SCH Number
2018072062
Lead Agency
Bethel Island Municipal Improvement District
Document Title
Northwest Levee Improvements and Stone Road Seepage Reduction Project
Document Type
MND - Mitigated Negative Declaration
Received

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
3085 Stone Rd PO Box 244
Bethel Island, CA 94511

925-684-2210

Location

Coordinates
38°01'41"N 121°38'26"W
Counties
Contra Costa
Cross Streets
Canal Rd, Stone Rd, Bethel Island Rd, Windsweep Rd and Gateway Rd
Zip
94511
Total Acres
40
Parcel #
029-040-011
Waterways
Dutch, Sand Mound, Taylor and Piper Sloughs
Township
2N
Range
3E
Section
10
Base
MD
Other Location Info
Bethel Island

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (levee and drainage improvements)
Local Action
Other Action Other Action: flood control
Project Issues
Cumulative Effects Landuse Wetland/Riparian Water Supply Water Quality Vegetation Tribal Cultural Resources Traffic/Circulation Toxic/Hazardous Soil Erosion/Compaction/Grading Recreation/Parks Public Services Population/Housing Balance Noise Minerals Geologic/Seismic Flood Plain/Flooding Drainage/Absorption Biological Resources Archaeologic-Historic Air Quality Agricultural Land Aesthetic/Visual
Reviewing Agencies
Department of Conservation State Lands Commission Regional Water Quality Control Bd., Region 5 (Sacramento) California Department of Parks and Recreation Caltrans, District 4 Central Valley Flood Protection Board Delta Protection Commission Delta Stewardship Council Department of Fish and Wildlife, Marine Region Department of Fish and Wildlife, Region 3 Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Office of Historic Preservation Resources Agency
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