GRAND CHUTE, Wis. (WBAY) - The Wisconsin Department of Transportation (WisDOT) Northeast Region announced the WIS 15/Northland Avenue Diverging Diamond Interchange (DDI) and the northbound I-41 on and off ramps will open late on Monday, September 15.

This work is weather-dependent and subject to change. After opening the DDI, crews will continue to work on finishing the remaining portions of the interchange.

The southbound I-41 on and off-ramps at WIS 15//Northland Avenue will remain closed until late fall.

What is a Diverging Diamond Interchange

A DDI is a type of highway interchange that improves safety and traffic flow by making it easier for drivers to turn left onto the freeway. DDI briefly shifts traffic on the local highway to the opposite side of the road, allowing free flow

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