Bridge over I-29 at Onawa to Be Closed Friday for Upgrades

Bridge over I-29 at Onawa to be closed Friday for upgrades

The closure is scheduled for approximately 9 a.m. to 3 p.m., weather permitting, the Iowa Department of Transportation said. Message signs will direct traffic through detours while the bridge is closed.

Closure of the Iowa 175 bridge over I-29 near Onawa begins on Friday, December 12

SIOUX CITY, Iowa – December 9, 2025 – If you drive on the Iowa 175 bridge over I-29 west of Onawa at I-29 Exit 112 you need to be aware of an upcoming closure that may affect your trip, according to the Iowa Department of Transportation’s Sioux City construction office. On Friday, December 12, weather permitting, crews will be closing the Iowa 175 bridge from approximately 9:00 a.m. to 3:00 p.m. so traffic control can be updated on the structur…