Beginning at 7 a.m. Tuesday until the work is completed, the westbound lanes of Fifth Avenue South from South 12th Street to South Eighth Street will be closed. Westbound traffic will be detoured north at 12th Street to Second Avenue South, west to South Eight Street and then south to Fifth Avenue South. The eastbound lanes will be converted back to two lanes of eastbound traffic. There will be no left turns for eastbound traffic at South Eighth Street. The city of Fort Dodge will be performing full-depth concrete replacement in the westbound lanes. Detours will be posted. Weather permitting, the lanes will be opened back up by Friday.