Public Works lays out data-driven 40-year road maintenance plan that hinges on steady annual funding
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Summary
Public Works showed commissioners a 40-year, segment-by-segment pavement plan using PCI scores and Brightly Predictor software. At an optimal funding level (~$5.2M/year) the county can avoid pervasive failures; under lower funding the model predicts escalating full-depth reclamations.
Public Works director T.J. Imburger presented a 40-year pavement-preservation plan that uses pavement condition index (PCI) data and the Brightly Predictor platform to prioritize segment-level maintenance. The approach sequences crack sealing, mill-and-overlay and full-depth reclamation triggered by PCI thresholds and produces cost scenarios tied to annual funding levels.
Imburger presented two modelled funding scenarios. Under an optimum funding scenario of roughly $5.2 million per year (today’s dollars), the model shows a program of preventive maintenance and limited mill-and-overlay that keeps the system largely in serviceable condition and delays widespread failures for decades. Under a constrained scenario (~$1.2 million/year), the model showed that the county would fall into repeated full-depth reclamations and accelerating failures within 10–20 years.
Board members pressed on assumptions, the need for recursive five-year PCI updates, and the difference between segment-level versus whole-road resurfacing. Imburger said the county now has detailed PCI scores for roughly 2,100 road segments and can produce an actionable year-by-year playbook once funding levels and priorities are set. The board did not adopt a funding level at the workshop but asked staff to run additional scenarios tied to realistic revenue streams.
