Treat Boulevard/Jones Road (Iron Horse Trail) Overcrossing and the Right Turn Lane on Oak Road to Treat Boulevard


SCH Number
Lead Agency
Contra Costa County
Document Title
Treat Boulevard/Jones Road (Iron Horse Trail) Overcrossing and the Right Turn Lane on Oak Road to Treat Boulevard
Document Type
NEG - Negative Declaration
Document Description
The proposed project involves the construction of a Class Bicycle/Pedestrian Bridge with ramps over Treat Boulevard at the intersection with Jones Road. Existing temporary BART parking on the north end of the overcrossing and the Jones Road northbound right turn lane to Treat Boulevard would be removed. The alignment within the northbound right turn lane provides separation from the John Muir Diablo Health System facility and preserves a stand of mature trees along Jones Road. Landing ramps would be constructed on Jones Road. The bridge overcrossing would connect with a realigned portion of the Iron Horse Trail on the north end and the existing trail alignment on the south end. A northbound right turn lane on Oak Road located one block west of Jones Road, would be constructed to replace the dedicated right turn lane used to construct the overcrossing right of way on Jones Road. The site is within the Pleasant Hill BART Station Specific Plan area in Central Contra Costa County.

Contact Information

Maureen Toms
Agency Name
Contra Costa County
Contact Types
Lead/Public Agency


Walnut Creek
Contra Costa
Cross Streets
Treat Boulevard/Jones Road
State Highways

Notice of Completion

Review Period Start
Review Period End
Development Types
Transportation:Other (pedestrian bridge and right turn lane)
Local Actions
infra structure
Project Issues
Aesthetics, Air Quality, Geology/Soils, Noise, Transportation
Reviewing Agencies
Air Resources Board, Transportation Projects, California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), Resources Agency, California Department of Transportation, District 4 (DOT)
Reviewing Agency Comments
California Department of Transportation, District 4 (DOT)

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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