To: Board of Supervisors
From: Warren Lai, Public Works Director/Chief Engineer
Report Title: APPROVE the Deer Valley Road Safety Improvements Project and take related actions under CEQA
☒Recommendation of the County Administrator ☐ Recommendation of Board Committee
RECOMMENDATIONS:
APPROVE the Deer Valley Road Safety Improvements Project (Project) and AUTHORIZE the Public Works Director, or designee, to advertise the Project, unincorporated Brentwood area. [County Project No. 0672-6U4166, DCD-CP#24-26] (District III).
DETERMINE the Project is a California Environmental Quality Act (CEQA), Categorical Exemption, pursuant to Article 19, Section 15301(c) of the CEQA Statute and Guidelines, and
DIRECT the Director of Department of Conservation and Development (DCD), or designee, to file a Notice of Exemption (NOE) with the County Clerk, and
AUTHORIZE the Public Works Director, or designee, to arrange for payment of a $25 fee to DCD for processing, and a $50 fee to the County Clerk for filing the NOE.
FISCAL IMPACT:
Estimated Project cost: $1,865,000. 60% Highway Safety Improvement Program, 40% Local Road Funds.
BACKGROUND:
The purpose of this project is to provide roadway safety improvements along four curves on Deer Valley Road. This project consists of installing dynamic/variable speed feedback signs and roadside warning signs, installing guardrail, and widening curves. Curve 1 will install two speed feedback signs, widen the shoulder by eight feet for approximately 350 linear feet, and place shoulder backing along the edge of the pavement. Curve 2 will install one speed feedback sign and replace the existing Chevron warning signs to a more reflective material. Curve 3 will widen the existing pavement by two feet which will require removal of three mature eucalyptus trees for increased site visibility, install one speed feedback sign, and approximately 500 linear feet of new guardrail. Curve 4 will widen the gravel shoulder to six feet from the edge of pavement and install eight Chevron warning signs along the curve and install two speed feedback signs. Ground excavation to a depth of approximately six feet will be necessary for installation of speed feedback signs and guardrail. Real estate transactions and utility relocations will be necessary. Construction is anticipated to begin in summer 2026 and take approximately two months to complete; temporary traffic control is expected to last for approximately the same period. Emergency vehicles will have access at all times.
CONSEQUENCE OF NEGATIVE ACTION:
Delay in approving the project may result in a delay of design and construction and may jeopardize funding.