Delta Islands and Levees Feasibility Study


SCH Number
Lead Agency
United States Army, Army Corps of Engineers (USACE)
Document Title
Delta Islands and Levees Feasibility Study
Document Type
EIS - Draft EIS
Present Land Use
Recreation - land is open water owned by East Bay Regional Parks/Big Break Regional Shoreline

Document Description
The selected plan proposes approx 340 acres of intertidal marsh restoration at Big Break via direct placement of 1,000,000 cy of material from annual O&M dredging over an estimated 10-year period and is both the Selected Plan and the Environmentally Preferred Alternative. Dredged material would come from O&M activities in the SF Bay to Stockton DWSC between approx station points 400+00 and 850+00. Dredged material would be directly pumped to the restoration site, rather than typical land-based dredged material placement sites. Approx 340 acres of open water habitat would be restored to intertidal marsh habitat, with approx 90 acres planted with aquatic vegetation. The remaining 245 acres would be underwater channels and shallow habitat for aquatic fauna species. In addition, the 50 acre remnant levee along the northern edge of Big Break would be treated for invasive plant species and would be planted with native riparian species.

Contact Information
Anne Baker
U.S. Army Corps of Engineers
Lead/Public Agency
1325 J St, 10th Floor
Sacramento, CA 95814

Phone : (916) 557-7277


Contra Costa
Total Acres
Parcel #
037-191-004-3, -029-0
State Highways
Big Break, Dutch Slough, San Joaquin River

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (340 acres of tidal marsh habitat)
Local Action
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Cultural Resources Cumulative Effects Hydrology/Water Quality Land Use/Planning Noise Recreation Transportation Vegetation Wetland/Riparian
Reviewing Agencies
California Department of Fish and Wildlife, North Central Region 2 (CDFW) California Department of Parks and Recreation California Department of Transportation, District 3 (DOT) California Highway Patrol California Native American Heritage Commission (NAHC) Central Valley Flood Protection Board Delta Protection Commission Delta Stewardship Council Department of Water Resources Resources Agency State Water Resources Control Board, Division of Water Quality California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

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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