I-29 southbound: Entrance ramp closed.

At Entrance ramp from US 20 W; US 75 S. The entrance ramp is closed due to road construction work. A detour is in operation. Follow the Iowa DOT-recommended detour around the closure. See map for detour(s) . Until September 18, 2026 at about 5:00PM CDT. Full schedule below: • June 2, 10:00AM - September 18, 5:00PM Comment: Sioux City RCE (712-239-1367) - Woodbury County