Hickman Road Interchange Construction

On this page...

Upcoming Traffic Changes
About the Project

Long Term Detours
Photo Gallery

Upcoming Traffic Changes

Ramp Openings: Douglas NB Off Ramp on 8/19, Hickman SB On Ramp on 8/25, and University SB Off Ramp also on 8/25.
Ramp Closures: Both Douglas SB On Ramps and the Hickman SB Off Ramp closures begin on 8/27 and last through mid-December.

* These openings and closures may happen late at night and affect traffic the following day.

About the Project

What: Replacement of the interchange at Interstates 80/35 and Hickman Road.

Why: Data shows that traffic volume in this area is projected to increase nearly 35 percent by 2042. The updated interchange will improve traffic flow and increase safety.

How: A diverging diamond configuration, similar to the interchange update in Ankeny at I-35 and 1st Street, will be constructed to increase safety. We’ll also be adding lanes to Hickman Road and adding lanes on I-35/80 from University to Douglas. Learn more about Diverging Diamond Interchanges.

When: All the design work has been completed and the project was awarded to United Contractors in July 2024. Construction began shortly after that. This is a multi-year project that is expected to be finished in 2028.

Project Budget: $94 million

Long Term Detours

Visit Iowa DOT News to find detour information for closures lasting less than a week.

Southbound Ramps at Hickman and University Avenues

The southbound on-ramp at Hickman Avenue and southbound off-ramp at University Avenue will be closed beginning April 21, 2025. The closures are expected to last 120 days.

Northbound Ramps at Hickman and University Avenues

The next stage will overlap with the work noted above and is expected to begin early to mid-June, 2025. The I-80/35 NB Hickman ramp and the NB Douglas off ramp will be closed. The current plan is to reopen the Douglas ramp in mid-July and the Hickman ramp in early September.

Greenbelt Trail

Beginning October 1st, the Greenbelt Trail will be closed where it crosses under I-35/80. The bridge is being reconstructed and it is important to keep the work zone clear for everyone’s safety.

Two detours are in place during the closure:

The first will take you south to University Avenue, then north on NW 114th Street to get back on the trail heading east.
The other option goes north along the Timberline Park Trail to the Douglas Avenue Trail. Follow that trail east to 100th Street and then go south to get back on the trail.