TO: Board of Supervisors
FROM: Steven Lederer, Director of Public Works
REPORT BY: Daniel Basore, Engineering Supervisor
SUBJECT: Project creation and Budget Amendment for the "Bale, Big Ranch, Lodi, Silverado Trail, and West Zinfandel Paving Project," RDS 25-06. Approval of Amendment No.1 to Agreement No. 240426B with GHD Inc.
RECOMMENDATION
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Approve and authorize creation of project 25042 for the "Bale, Big Ranch, Lodi, Silverado Trail, and West Zinfandel Paving Project," RDS 25-06; and approve a Budget Amendment to fund engineering and administrative expenses and approval of Amendment No. 1 to Agreement No. 240426B with GHD Inc., for additional engineering services. (Fiscal Impact: $50,000 Expense; Measure T Special Revenue; Not Budgeted; Discretionary)
[4/5 vote required]
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BACKGROUND
Roads planned for rehabilitation are selected based on their existing Pavement Condition Index (PCI), which is an overall measure of the condition of the road surface developed by the United Sates Army Corps of Engineers and later standardized by American Society for Testing and Materials (ASTM). The PCI shows a numerical index ranging from 0 to 100, with 100 being a best roadway condition that is anticipated to support 20 years of use.
Public Works uses the PCI information to develop a 5-year plan which optimizes the use of available funds to assist in prioritizing road resurfacing projects. This is not an analysis that selects repairs based on "worst first." Instead, it is based on repairs that provide the greatest efficiency per dollar spent. In many cases spending smaller amounts of money on maintenance towards roads that aren't in bad shape can sometimes be much more effectively spent than a larger funding amount towards a road that has already failed.
The roads to be included in the project are as follows:
Bale Lane (0.70 miles) - All
Big Ranch Road (0.7 miles) - Oak Knoll Ave (east) to End
Lodi Lane (0.53 miles) - All
Silverado Trail (2.4 miles) - Zinfandel...
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