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Engineer and commissioners praise completion of Gibson Bridge project; minor material spec noted
Summary
County staff and an engineering consultant reported the new bridge is complete and accepted; commissioners praised contractors and discussed a minor out-of-spec gradation on base material that staff deemed practical to accept with documentation.
Treasure County staff and a consultant reported at the April 1 meeting that the county's bridge project is complete and in service. Commissioners praised the contractor team and the bypass work that kept traffic moving during construction.
An engineering review flagged a minor gradation variance in the bedding material (a slightly higher percentage of fine material than the specification allowed). Staff said the deviation is small and that placing the final surfacing material will mitigate any practical performance concern for the bridge. Commissioners asked that the variance be documented so the county has a record in case of later claims; staff agreed and said they would circulate the documentation.
Why it matters: the bridge replaces a known pinch point and the county said it will improve local travel and safety. Staff emphasized the project was completed on schedule under challenging weather and praised local contractors used on the job.
Next steps: staff will finalize close-out paperwork, document the material gradation variance, and continue to monitor the new structure for settlement and normal post-construction performance.
