Alhambra Valley Road Erosion Repair - 3 Sites Project
Summary
SCH Number
2026010464
Public Agency
Contra Costa County
Document Title
Alhambra Valley Road Erosion Repair - 3 Sites Project
Document Type
NOE - Notice of Exemption
Received
Posted
1/16/2026
Document Description
The purpose of this project is to repair three embankment failures and reconstruct the roadway to restore twoway traffic to a stretch of Alhambra Valley Road that was damaged during the 2023 winter storm events. The road is currently limited to one lane for travel at two of the embankment failure locations. The road embankments will be repaired and stabilized by constructing soldier pile retaining walls and reconstructing the collapsed roadway at all three sites. The existing road pavement will also be repaired the length of the erosion within the project area at all three sites. In addition, an existing 18-inch diameter HOPE storm drain culvert crossing Alhambra Valley Road and the bank armoring at the culvert's outfall will be replaced and repaired at the western-most site and an inlet and culvert will be installed at the eastern-most site. The repair work at all three sites will include clearing and grubbing on the embankment, excavation, construction of soldier pile retaining walls, embankment repair and stabilization, installation of rock slope protection and guardrail, and roadway reconstruction. Real Estate transactions, utility relocations, temporary traffic control, and tree and vegetation trimming and removal may be necessary. The project is anticipated to be constructed in 2027 and take approximately 70 working days to complete. No night or Sunday work is anticipated. Applicable best management practices will be implemented such as storm drain inlet protection, silt fencing, and straw wattles. Regulatory permits will be obtained before construction.
Contact Information
Name
Sandeep Kajla
Agency Name
Contra Costa County Public Works
Job Title
Project Manager
Contact Types
Lead/Public Agency / Parties Undertaking Project
Phone
Name
Syd Sotoodeh
Agency Name
Contra Costa County Department of Conservation and Development
Job Title
Senior Planner
Contact Types
Lead/Public Agency
Address
Phone
Location
Cities
Martinez
Counties
Contra Costa
Regions
Northern California
Zip
94553
Parcel #
362-100-004
Other Location Info
Three embankment failure locations along Alhambra Valley Road at 1 mile, 1.3 miles,
and 1.6 miles east of Castro Ranch Road in unincorporated central Contra Costa County.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301(c)
Reasons for Exemption
The activity/project consists of the repair and reconstruction of an existing street at three locations and drainage system at one location, involving negligible expansion of use beyond that previously existing and is therefore exempt pursuant to Article 19, Section 15301 (c) and 15302(c) of the CEQA Guidelines. There is no substantial evidence that the project involves unusual circumstances resulting in, or which might reasonably result in, significant impacts which threaten the environment. None of the exceptions in CEQA Guidelines section 15300.2 apply.
County Clerk
Contra Costa
Attachments
Notice of Exemption
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