Iowa DOT News Release

Changing traffic patterns on southbound I-29 in Sioux City begin March 23 #iatraffic

Posted on: March 15, 2018

SIOUX CITY, Iowa – March 15, 2018 – Southbound Interstate 29 traffic between U.S. 77, Iowa 12, and Wesley Parkway and Floyd Boulevard (exit 147a) will be shifted to the southbound frontage road near Wesley Parkway to accommodate reconstruction of the southbound I-29 lanes beginning at 3 p.m. Friday, March 23, until Thursday, Oct. 11, weather permitting, according to the Iowa Department of Transportation’s Sioux City construction office. The southbound Pierce Street on-ramp and southbound Floyd Boulevard off-ramp will be closed.

Southbound I-29 traffic exiting to Floyd Boulevard will be asked to exit at Hamilton Boulevard and follow the signed detour. Detour maps can be viewed at

The Iowa DOT reminds motorists to drive with caution, obey the posted speed limit and other signs in the work area, and be aware that traffic fines for moving violations are at least double in work zones. As in all work zones, drivers should stay alert, allow ample space between vehicles, and wear seat belts.

The latest traveler information is available anytime through our 511 system. Visit; call 511 (within Iowa) or 800-288-1047 (nationwide); stay connected with 511 on Facebook or Twitter (find links at; or download the free app to your mobile device.

To receive email or text alerts about traffic incidents, road closures, traffic delays, and other restrictions that affect this highway route or other routes you travel, the Iowa DOT offers the “Your 511” option on It’s easy to subscribe to Your 511 and sign up to receive the email/text alerts. Visit for simple, step-by-step instructions.


Contact: Dakin Schultz at 712-274-5837 or

Iowa highway in the evening