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US 10/WIS 441 expansion need

Traffic volume and flow

The Fox Cities area is one of the fastest growing areas in the state. As a result, traffic volumes have risen sharply over the last decade. In 2004, traffic counts ranged from 42,000 to 66,000 vehicles per day along existing US 10/WIS 441 and from 75,000 to 91,000 per day along existing US 41 within the study area. 

Existing US 10/WIS 441 does not have sufficient capacity to safely handle expected traffic increases and lacks auxiliary lanes, which help preserve traffic flow between closely spaced interchanges. Most of the existing interchanges also need improvements such as longer on and off-ramps and additional turning capacity at the ramp intersections.

US 41/10/WIS 441 Interchange

In particular, the existing US 41/10/WIS 441 interchange has severe deficiencies. Due to safety concerns involving the operation of two former at-grade intersections, four traffic movements within the interchange were eliminated in 1997:

• Northbound US 41 to westbound US 10
• Southbound US 41 to westbound US 10
• Eastbound US 10 to northbound US 41
• Eastbound US 10 to southbound US 41

Two of these ramp movements remain out of service, and the ramps cannot be restored without a complete upgrade of the interchange.

Little Lake Butte des Morts Bridge

Law enforcement officials have expressed concern regarding the safety of the Little Lake Butte des Morts bridge for the traveling public. The existing bridge has only 3.5-foot-wide shoulders and does not allow stalled motorists to pull completely off the live traffic lanes. 

In addition, westbound traffic crossing the bridge can not see a safe distance over the crest of the bridge. Lane expansion is necessary to accommodate the heavy traffic on the bridge and to ensure motorists' safety.

Expansion purpose

The proposed expansion of US 10/WIS 441 and related interchange and auxiliary lane improvements will:

• Provide additional roadway capacity to serve existing and projected traffic volumes.
• Improve operational efficiency and safety for local and through traffic.
• Contribute to improved regional economic development.

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Northeast Transportation Region, greenbay.dtd@dot.state.wi.us
Last modified: May 10, 2007