Tesla Road Mile Marker 9.50 Emergency Storm Damage Repair, in Livermore, Alameda County.


SCH Number
Public Agency
Alameda County Public Works Agency (ACPWA)
Document Title
Tesla Road Mile Marker 9.50 Emergency Storm Damage Repair, in Livermore, Alameda County.
Document Type
NOE - Notice of Exemption
Document Description
During the 2022-2023 winter storms, an approximately 80-foot-long section of the northbound Tesla Road at approximately MM 9.50 experienced subsidence failure due to heavy rainfall. Per site observations, the mode of failure might have included a potential clogged culvert which contributed to rainwater flow saturating the soil underneath the road, eroding the soil layers, and causing it to become unstable. Overtime, this potentially lead to the formation of voids resulting in sinks and settling into gaps which compromised the road surface in the form of cracks and deformations. The sinkage has caused the road to become impassable, resulting in traffic disruptions and safety hazards for pedestrians and vehicular traffic. Tesla Road is mainly used by vehicular traffic as an alternate Interstate 580 access to the Altamont Pass from the city of Tracy to the city of Livermore. The damaged section includes the northbound lane, a portion of the southbound lane, and the earthen embankment. The slope below the embankment is about 2.5:1 Both side of the roadways is currently closed on both directions. The temporary emergency repairs at Tesla Rd MM 9.50 consist of the removal of the debris along the damaged roadway, rebuilding the roadway by recompacting and grading the roadway with virgin Class 2 AB fill material and reconnect the storm drain with a new culvert pipe to match the existing pipe size. This will be followed by the reconstruction of the roadway with aggregate base grading and asphalt concrete paving.

Contact Information

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


Cross Streets
Tesla Road MM 9.50

Notice of Exemption

Exempt Status
Statutory Exemption
Type, Section or Code
SEC. 15269, Emergency Services Act Sections 855 (b) and 8625 of the California Government
Reasons for Exemption
These projects are categorically 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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