I-35 southbound: Exit ramp closed.

At Exit 111A ramp to US 30 E. The exit ramp is closed because of night time construction work. A detour is in operation. Follow the Iowa DOT-recommended detour around the closure. See map for detour(s) . From 7:30PM CST to 6:00AM CST on weekdays and Sunday and from 7:30PM CST to 10:00AM CST on Saturday. Until December 14, 2026 at about 10:00AM CST. Comment: Jefferson RCE (800-251-2705) - Story County **Intermittent Ramp Closures**