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Presentation: pavement-management survey shows Denison average PCI 54, backlog 32%; analyst recommends funding lift to stabilize conditions
Summary
Infrastructure Management Services presented a pavement-management survey showing Denison’s average Pavement Condition Index (PCI) is 54, with a backlog (PCI ≤40) of about 32%; analysts said $2 million per year would hold the network steady while current spending will let average PCI decline.
Consultants from Infrastructure Management Services presented the results of a citywide pavement-management survey to Denison City Council on Tuesday, reporting an average Pavement Condition Index (PCI) of 54 across the network and a backlog — the share of pavement with PCI at or below 40 — of about 32 percent.
Megan Ratliff, a pavement engineer with Infrastructure Management Services, explained the PCI is an ASTM-standard (D6433) index that scores road segments from 0 to 100 based on surface distresses such as cracking, potholes and patching; concrete streets in Denison scored better on average than asphalt streets. Ratliff said the firm ran a five-year financial analysis that projects continued decline in average PCI under current funding levels; at roughly $2,000,000 per year the city could maintain the current PCI over a five-year horizon.
Council members and staff discussed causes for deteriorated sections, including older water and sewer mains under asphalt streets that may require utility replacement before a lasting pavement rehabilitation. City staff noted past projects that replaced utilities and pavement had improved network scores and said the survey will help prioritize streets for both maintenance and capital replacement. Consultants factored a 3 percent annual inflation assumption into their five-year cost projections and noted that higher inflation during the COVID period had previously driven cost spikes.
Council members asked about the relative merits of concrete versus asphalt in the local climate and soils; staff and consultants said concrete typically lasts longer but choices depend on local materials and soil conditions. The consultant recommended using the survey results to develop a multi-year plan — including crack sealing and prioritized rehabilitation — and to consider funding options (including potential bond packages) to address the backlog.
