Patterson Pass Road Mile Marker 6.25 Storm Damage Repair, East of Livermore


SCH Number
Public Agency
Alameda County Public Works Agency (ACPWA)
Document Title
Patterson Pass Road Mile Marker 6.25 Storm Damage Repair, East of Livermore
Document Type
NOE - Notice of Exemption
Document Description
During the 2022-2023 winter storms, an approximately 25-foot-wide road embankment along the south side of Patterson Pass Road at Mile Marker 6.25 eroded and failed. Temporary plastic liners were installed to prevent further erosion, and sand ballast bags kept it in place. The proposed emergency repair consists of excavating approximately 200 cubic yards of soil, installing rock slope protection (RSP) fabric, and placing approximately 660 cubic yards of ¼ ton RSP and Class 1 backing materials in the eroded area. The bank shoulder area will be restored to match both of the existing sides and the road structural section will be restored with asphalt concrete.

Contact Information

James Yoo
Agency Name
Alameda County Public Works Agency
Job Title
Associate Environmental Compliance Specialist
Contact Types
Lead/Public Agency


Cross Streets
Patterson Pass Road Mile Marker 6.25

Notice of Exemption

Exempt Status
Statutory Exemption
Type, Section or Code
Statutory Exemption (Sections 15269)
Reasons for Exemption
This project is statutorily exempt by specific provisions of the California Environmental Quality Act as described proclaimed by the Governor pursuant to California Emergency Services Act Sections 8558(b) and 8625 of the California Government code.
County Clerk


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