Seismic Retrofit - Russian River Viaducts


SCH Number
Lead Agency
Caltrans 4 (Oakland) (California Department of Transportation, District 4)
Document Title
Seismic Retrofit - Russian River Viaducts
Document Type
NOE - Notice of Exemption

Document Description
Ensure that the roadway above two viaducts (#20-0071 and #20-0072) remains stable in the event of a large earthquake. The project will strengthen the bridge joints by attaching standard seat extenders (3 per joint) to the two existing joints, and by installing new tube steel assemblies that will hang under the bridge deck.

Contact Information
Oliver Lberien
California Department of Transportation, District 4
111 Grand Avenue
Oakland, CA 94623-0060

Phone : (510) 622-0803



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1(c)
Reasons for Exemption
Existing highway facility that will not have any impacts to environmental resources.

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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