Supervisors approve Iowa DOT detour agreement for bridge work; county told detour likely next summer

The Franklin County Board of Supervisors approved an agreement with the Iowa Department of Transportation to detour primary-highway traffic onto local roads during planned bridge work. County staff described the detour route as diverting traffic from Highway 65 onto county roads C13 and S56 toward the county line and said the pattern will mirror prior detours. A motion to approve was moved, seconded and passed by voice vote. The board asked about timing; staff said the bridge work was expected “next summer sometime” and had been pushed back from an earlier target. Staff added that a multi-month window is likely and described a typical three-month construction window for similar projects. Why it matters: detours route heavier traffic onto local roads, which can affect maintenance needs, traffic patterns and local safety considerations. The board approved the agreement to comply with DOT requirements for routing primary-highway detours onto local roadways.