State Route 4 Median Buffer Zone

4 Documents in Project


SCH Number
Lead Agency
Caltrans 4 (Oakland) (California Department of Transportation, District 4)
Document Title
State Route 4 Median Buffer Zone
Document Type
FIN - Final Document

Document Description
Caltrans proposes to construct a safety improvement project on SR4. A 6 foot buffer zone will be created between the opposing lanes of traffic. The outside shoulders will be upgraded to standards for errant vehicle recovery, and to provide an area whereby emergency vehicles can pull off the road to assist motorists. The Kellogg Creek Bridge will be widened to provide standard shoulders. Additionally, the curve at the intersection of Byron Highway will be reconfigured to meet horizontal curve standards and sight distance requirements.

Contact Information
Joseph Douglas
California Department of Transportation, District 4
PO Box 23660
Oakland, CA 94623-0060

Phone : (510) 622-8799


Contra Costa
Cross Streets
Byron Hwy.
Other Location Info
Discovery Bay

Notice of Completion

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