Deer Valley Shoulder Widening Project

4 Documents in Project


SCH Number
Lead Agency
Contra Costa County
Document Title
Deer Valley Shoulder Widening Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Agricultural Lands/Agricultureal Preserve District

Document Description
The purpose of this project is to improve two sections of Deer Valley Road, and existing arterial route in eastern Contra Costa County. The improvements to Deer Valley Road will provide wider recovery areas, and greater sight distances for drivers. The first section (Location 1) begins at the intersection of Deer Valley Road and marsh Creek Road and ends approximately 140 feet south of the bridge that crosses Marsh Creek. The second section (Location 2) is along a reversing curve beginning 2,100 feet north of the Deer Valley Road and Marsh Creek Road intersection and ending 3,200 feet north of the same intersection. Both locations will include widening lanes from 10 foot wide to 12 foot wide with 6 foot paved shoulders and 2 feet of shoulder backing on both sides. Curve warning signage will be installed as needed to increase safety along the two project locations and Class II bike lanes will be established at both locations with appropriate bike lane signage and striping.

Contact Information
Kimani Birden
Contra Costa County
Lead/Public Agency
255 Glacier Drive
Martinez, CA 94553

Phone : (925) 313-2190


37°52'57"N 121°46'36"W
Contra Costa
Total Acres
Marsh Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Other (Road Improvement)
Local Action
Road Safety
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Cultural Resources Cumulative Effects Drainage/Absorption Flood Plain/Flooding Geology/Soils Growth Inducement Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services Recreation Schools/Universities Septic System Solid Waste Transportation Vegetation Wetland/Riparian Wildfire
Reviewing Agencies
Air Resources Board, Major Industrial 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 Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB) California State Lands Commission (SLC) Department of Water Resources Office of Historic Preservation Resources Agency

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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