SJ County Bridge Rehab

5 Documents in Project


SCH Number
Lead Agency
Caltrans 3 (Marysville) (California Department of Transportation, District 3)
Document Title
SJ County Bridge Rehab
Document Type
NOD - Notice of Determination

Document Description
Caltrans proposes to rehabilitate mechanical and electrical systems that enable the operation of the Old River Bridge (#29 0045) on SR 4 at the county line of Contra Costa and San Joaquin counties. The Old River Bridge as it currently operates is a narrow, two-lane span without shoulders or sidewalks. It crosses Old River, which serves as the county line between Contra Costa and San Joaquin Counties. In this area, Old River is a navigable waterway under the jurisdiction of the United States Coast Guard. The swing span (the moveable portion of the bridge) is the central part of the bridge deck, which swings out perpendicular to the rest of the structures, opening a passage for marine traffic. The mechanical and electrical components that support operation of the bridge date back to the construction of the control house in 1938, when the operation of the swing span was first mechanized. The equipment is old and appears archaic even to the uneducated eye. The work will be limited to repair and replacement of the mechanical and electrical components, most of which reside within the bridge structure.

Contact Information
Janet Bailey
California Department of Transportation, District 3
1976 E Dr Martin Luther King Blvd
Stockton, CA 95205

Phone : (209) 948-7690


Contra Costa San Joaquin
Cross Streets
SR 4 at Old River
State Highways
Old River
Other Location Info
Discovery Bay

Notice of Determination

Approving Agency
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA

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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