Work is well underway on the project to improve Interstate 35 in West Des Moines.
The DOT is working on new southbound lanes between the West Mixmaster and Raccoon River Bridge.
The next phase of the project requires closing the Grand Avenue ramps on southbound I-35 beginning Thursday. Drivers will not be able to get to or from Grand Avenue until the fall.
The eastbound Grand Avenue to northbound I-35 ramp will also be closed for two weeks, but then reopen to traffic.