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Commissioners warn of bridge backlog, seek prioritization and inspection review
Summary
Commissioners spent substantial time debating a decades-long bridge backlog and inspection reliability, urged a bridge-prioritization work session and discussed criteria (load rating, bus routes, traffic counts and structure type) that guide which bridges are repaired or closed.
Commissioners devoted an extended portion of the meeting to concern over a long-running backlog of bridge maintenance and the county’s ability to prioritize limited capital funds.
Several commissioners warned that past underinvestment means the county will face difficult trade-offs if many aging bridges reach the end of their service life simultaneously. One commissioner argued that replacing low-traffic bridges now could leave the county short of funds to address higher-traffic structures that carry more people and economic activity.
Staff described the county’s prioritization framework: first preserve routes critical for bus service and examine load ratings; secondarily consider traffic counts to determine public-impact; and thirdly evaluate structure type and remaining useful life. Staff noted that some lower-cost steel or T-beam solutions have shorter lifespans, while decks on certain designs may fail suddenly despite acceptable substructure ratings.
On inspection reliability, commissioners and staff acknowledged past problems with bridge inspection contractors and said inspection reports can provide uncertain life estimates, especially when a deck is thin or when inspectors miss critical defects. Staff recommended a dedicated work session to lay out priorities for bridge and asphalt preservation, noting that recent budgeting added approximately $1.2 million to the bridge budget over two fiscal years but that more funding would be needed to close a decades-long gap.
The discussion concluded with direction to consider a targeted work session on prioritization and preservation strategies so the board can clarify trade-offs and program funding decisions before more structures deteriorate.
