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County Engineer outlines Iowa DOT plan to convert Highway 63/C57 to J‑turn
Summary
County Engineer Catherine Nicholas reported that the Iowa DOT proposes converting the Highway 63 and C57 intersection to a Reduced Conflict Intersection (J‑turn), citing safety and cost benefits; the project is budgeted for FY2028 and county staff voiced concerns about the design.
County Engineer Catherine Nicholas provided an update during the July 21, 2026, Board of Supervisors meeting on an Iowa Department of Transportation plan to convert the Highway 63 and C57 intersection to a Reduced Conflict Intersection (RCI), also known as a J‑turn. The DOT presentation, according to meeting minutes, cited significant reductions in traffic accidents at comparable intersections in Minnesota and Wisconsin and said the design is supported primarily for safety improvements and cost‑effectiveness. The project is currently budgeted for Fiscal Year 2028.
Nicholas relayed that Black Hawk County has expressed concerns about the proposed design; the minutes record the county’s reservations but do not detail specific design changes requested. The board received the update; no formal action to endorse or oppose the DOT’s plan was recorded in the minutes.
