GREEN BAY (WLUK) — Delays and disruptions will be coming to your daily commute.

A project involving I-41 flyover ramps in Brown County starts Tuesday, where a total of six flyover ramps will see closures.

The good news is, they won’t all be closed at the same time.

Delays and disruptions will be coming to your daily commute. A project involving I-41 flyover ramps in Brown County starts Tuesday, where a total of six flyover ramps will see closures. July 6, 2026 (WLUK/Tony Langfellow).

The Wisconsin Department of Transportation said this project is necessary to help preserve the roads.

It’s been more than 10 years since the I-41 corridor was completed.

Now with the creation of some new technology, six I-41 flyover ramps in Brown County and one in Winnebago County are getting an upgrade.

This includes the I-41/I-43 interchange and the I-41/WIS 29 interchange.

“The project will be milling off the existing deck overlay and then be doing any necessary deck repairs. And then we’ll be putting on this new overlay, which is a more robust weather resistant overlay that will protect the bridge decks here,” Wisconsin DOT Project Manager Josh Lang said.

The new overlay is called “Polyester Polymer Concrete.”

But what exactly is that? When you’re driving on the ramps, you may notice patchy black and white spots on the road — that’s what the DOT is fixing, with a new specialized type of concrete.

Lang said the new overlay is key for high traffic areas.

“The main purpose of this material is to protect the bridge decks. That’s what our structures see the most wear and tear, but it does have those added benefits. The traction benefits the durability and such there,” Lang said.

The $6.87 million project is being funded through a mixture of state and federal funding.

Lang said the project is happening now because this new overlay technology didn’t exist until after the original highway project was complete.

There are no other issues with the flyover ramps, according to Lang.

Most of the closures will be quick, but will cause delays and detours.

Lang called this project an important step in preserving the roads for years to come.

“It’s really exciting. It’s really a great application of this material and I’m excited to see how this performs to keep our infrastructure, everything that was built with this 41 expansion in great shape,” Lang said.

The first ramp closure starts Tuesday with I-41 south to 29 west.

Lang said that work will last about a week.

The DOT expects all of the Brown County improvements to be done by September.

The Winnebago County project will begin in 2027.

I-41/I-43 interchange, Brown County:

• Northbound I-41 to southbound I-43 southbound (over Velp Avenue)
• Northbound I-43 to southbound I-41 (over I-41)
• Northbound I-43 to northbound I-41

I-41/WIS 32/WIS 29 interchange, Brown County:

• Southbound I-41 to westbound WIS 29 (over WIS 29)
• Eastbound WIS 29 to northbound I-41 (over I-41/WIS 29)
• Northbound I-41 to westbound WIS 29 (over I-41)

Winnebago County:

• Northbound I-41 to northbound US 45 (over I-41)

• The Wisconsin Supreme Court has paused a case challenging the legality of ICE detainers.
• This hold will remain until a federal appeals court decides which court has jurisdiction.
• The lawsuit, filed by the ACLU, seeks to stop Wisconsin sheriffs from holding immigrant detainees for federal authorities.

MADISON – The Wisconsin Supreme Court is putting on hold a case challenging the legality of ICE detainers in Wisconsin until federal judges determine whether they will reconsider where the case should be tried.

In its July 6 order, the state Supreme Court also held off on deciding whether to allow the U.S. government to join the case, which seeks to block county jails from holding immigrant detainees at federal authorities’ request.

The case continues to sit in jurisdictional uncertainty. It’s currently under the state Supreme Court’s purview, but the county sheriffs being sued have asked a federal appeals court to take it.

The court’s order seeks to “avoid potential uncertainty and conflict” as the federal appeal plays out.

The American Civil Liberties Union of Wisconsin filed the lawsuit in September 2025, on behalf of the immigrant advocacy group Voces de la Frontera, against five Wisconsin sheriffs who have partnered with U.S. Immigration and Customs Enforcement to house immigrant detainees, an action known as a detainer.

More: Wave of Milwaukee ICE arrests is part of nationwide White House push

The state’s highest court agreed to take the case in December 2025, but the five sheriffs named in the lawsuit – Dave Gerber of Walworth County, Todd Delain of Brown County, Chad Billeb of Marathon County, David Zoerner of Kenosha County and Chip Meister of Sauk County – sought to have the case moved to federal court.

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