Iowa DOT News

Ramp and lane closures on north- and southbound I-29 at exit 135 in Woodbury County begin Monday morning #iatraffic

SIOUX CITY, Iowa – June 25, 2014 – The northbound Interstate 29 off-ramp and southbound I-29 on-ramp at Woodbury County Road D-51/Port Neal Road (exit 135) will be closed to accommodate the reconstruction of the Port Neal interchange Monday morning, June 30, weather permitting, according to the Iowa Department of Transportation’s Sioux City construction office.

In addition, north- and southbound I-29 traffic will be restricted to one lane at exit 135.

On- and off-ramp I-29 traffic will be detoured to the Sergeant Bluff interchange (exit 141). The detour will be in operation until Nov. 21. Motorists should pay special attention to the signs directing traffic through the work zone.

Iowa DOT’s construction project website,, includes more complete information on major construction projects that will affect travelers across Iowa this construction season, including specific project details, project detours and traffic impacts, costs, schedules, construction updates, contact information, and an interactive map that includes current projects on Iowa’s interstate and state highways. 

The Iowa DOT reminds motorists to drive with caution, obey 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.

For the latest traveler information anytime, 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.


Contact: Dean Herbst at 712-239-1367 or [email protected]




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