State Route 4 Bypass Project, Segment 3

11 Documents in Project


SCH Number
Lead Agency
State Route 4 Bypass Authority
Document Title
State Route 4 Bypass Project, Segment 3
Document Type
SIR - Supplemental EIR

Document Description
The Authority proposes to construct Seg. 3 of the Bypass to relocate existing SR4 as a regional route outside of urbanized areas of Brentwood. A limited-access Bypass with improved east-west connections to SR4 would improve regional circulation through east Contra Costa County and provide a more balanced distribution of current and future traffic.

Contact Information
Nancy Wein
State Route 4 Bypass Authority
Lead/Public Agency
255 Glacier Drive
Martinez, CA 94553

Phone : (925) 313-2275


Contra Costa
Cross Streets
Balfour Road / State Route 4 (Byron Highway) / Vasco Road
Total Acres
~ 257
State Highways
Highway 4
R. Paul Krey Elementary
Marsh Creek, Kellogg Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Other (Roadway Construction)
Local Action
Authority to Construct
Project Issues
Agriculture and Forestry Resources Cultural Resources Cumulative Effects Growth Inducement Land Use/Planning Noise Recreation Transportation Vegetation Wildlife
Reviewing Agencies
Air Resources Board, Transportation Projects 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 Highway Patrol California Native American Heritage Commission (NAHC) California Public Utilities Commission (CPUC) California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB) Department of Water Resources Office of Historic Preservation Resources Agency California Department of Conservation (DOC)

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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