TO: Board of Supervisors
FROM: Steven Lederer, Director of Public Works
REPORT BY: Sydney Barclay, Associate Engineer
SUBJECT: Budget Adjustment for the "Chiles Pope Valley Road MPM 3.63" project.
RECOMMENDATION
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Approve a Budget Amendment for the "Chiles Pope Valley Road MPM 3.63" Project 23006, RDS 22-27 (Fiscal Impact: $35,000; SB-1 Non-Operating Special Revenue Fund; Not Budgeted; Discretionary)
[4/5 vote required]
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BACKGROUND
The Chiles Pope Valley Road MPM 3.63 Project 23006 (RDS 22-27) construction was substantially completed on November 4, 2025. The project scope included replacement of the existing culvert wingwall structure, installation of upstream and downstream concrete slabs and rip rap to mitigate erosion and scouring, and installation of roadside concrete barriers and new guardrail.
During construction, several unforeseen site conditions were encountered that differed materially from those shown in the approved plan set. As a result, multiple contract change orders were necessary to complete the project that included, but were not limited to: extending the length and height of the upstream and downstream concrete roadside safety barriers, installing aggregate base backfill and plug paving between the concrete wingwalls and barriers, and chipping bedrock to properly key-in rock slope protection at the downstream end of the culvert. Due to permitting restrictions limiting construction to a defined work window, combined with the impending rainy season and limited remaining working days, portions of this work were completed on a time-and-materials basis to avoid construction delays and ensure regulatory compliance. The full extent of this additional work was finalized at the conclusion of construction and resolved through a balancing contract change order. In addition to an increased construction scope, the scope of services for the County's consultants also expanded. Additional coordination, design revisions, and construction support w...
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