Briones Area Guardrail Upgrades


SCH Number
Public Agency
Contra Costa County
Document Title
Briones Area Guardrail Upgrades
Document Type
NOE - Notice of Exemption
Document Description
Contra Costa County Public Works Department (County) proposes to remove sub-standard Metal Beam Guardrails (MBGR) and end treatments and replace them with Midwest Guardrail System (MGS) and end treatments. Approximately 43 existing guardrails with a total length of approximately 14,238 linear feet, including end treatments, will be upgraded. The construction process will include removal and replacement of guardrails and posts, relocation of several guardrail posts near end treatments with grading as needed, and miscellaneous repairs as needed. Construction is currently anticipated to occur in summer 2024 and will take approximately 9 weeks to complete.

Contact Information

Shravan Sundaram
Agency Name
Contra Costa County Public Works Department
Job Title
Environmental Analyst
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project


Unincorporated Martinez Area
Contra Costa
Northern California, San Francisco Bay Area, Unincorporated
Other Location Info
This project is located along portions of Reliez Valley Road, Alhambra Valley Road and Bear Creek Road which are arterials and major collector roadways in unincorporated Martinez area in Contra Costa County.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Article 19, Section 15302(c)
Reasons for Exemption
The activity consists of the replacement or reconstruction of existing facilities (guardrails) in the same location and with the same purpose and capacities as the facility replaced or reconstructed.
County Clerk
Contra Costa


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