Iowa DOT News

New detour for I-80 Westbound traffic exiting at U.S. 275/Iowa 92 through late fall 2016

Council Bluffs, IA — May 19, 2016 — A new detour will begin Tuesday, May 24, weather permitting, for motorists in Council Bluffs on westbound I-80 exiting at I-29 and U.S. 275/Iowa 92 (Exit 47), according to the Iowa Department of Transportation’s District 4 Office. 

Motorists will need to exit at South Expressway (Exit 3) if headed to U.S. 275/Iowa 92. (See attached map for detour) I-80 eastbound traffic will still be able to exit at U.S. 275/Iowa 92 (Exit 47) until late summer.

In addition to the detour, I-80 westbound to I-29 southbound traffic will shift to a new two-way configuration with northbound traffic beginning just north of the U.S. 275/Iowa 92 interchange. Traffic will shift back to the existing I-29 southbound lanes just south of the interchange.

Motorists should expect additional traffic shifts and detours over the summer and early fall as construction crews work to finalize the I-29 and U.S. 275/Iowa 92 interchange reconstruction. If you would like more information about detours and traffic impacts visit the program website,

Iowa DOT is in the process of reconstructing I-80, I-29 and I-480 in the Council Bluffs metropolitan area. This comprehensive interstate redesign will modernize the highway system and improve mobility and safety of approximately 18 miles of interstate. Motorists are encouraged to allow for extra travel time while this interstate improvement takes effect.


Contact: Scott Suhr, Iowa DOT Transportation Planner at 712.326.3712 or for more information.

Download I-29 Traffic Shift Map



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