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US 10/WIS 441 (County CB-Oneida St.) Expansion

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US 10/WIS 441 (County CB-Oneida St.) Expansion - Alternatives

US 10/WIS 441 | US 41

Note - This site is for reference purposes only. For the most current info. visit http://us41wisconsin.gov/wis441/.

Ongoing preliminary engineering efforts include:

  • Adding mainline capacity on US 10/WIS 441 including an additional bridge over Little Lake Butte des Morts
  • Upgrading existing interchanges
  • Adding auxiliary lanes where needed

Note - The following sections summarize concepts that were developed during previous planning studies. Some design concepts may be updated during the ongoing preliminary engineering efforts.

As part of the original expansion study, preliminary alternatives were evaluated at each interchange within the study corridor and preferred alternatives were selected. These preferred alternatives ranged from minimal to substantial improvements.

Renewed study evaluated new preferred alternatives at the County P (Racine St.) and the County AP (Midway Rd.) interchanges. Preferred alternatives at the other interchanges are unchanged from the original expansion study.

Alternatives include:

  • Adding another driving lane in each direction on US 10/WIS 441
  • Adding an outside auxiliary lanes between interchanges where needed

The following documents are in Adobe PDF PDF format.
(Note: Some files are large and may take longer to download depending on individual connection speeds. Users may need to zoom in to see details.)

US 10/WIS 441 interchanges

County CB Interchange

  • No improvements planned

US 41 interchange

Three alternatives were originally considered at the US 10/US 41/WIS 441 system interchange. The Southwest loop alternative, described below, was selected as the preferred alternative. This preferred alternative is not affected by the renewed expansion study.

Southwest loop alternative includes:

  • Retaining loop ramp in southwest quadrant for southbound US 41 to eastbound US 10
  • Constructing flyover ramp over US 41 for eastbound US 10 to northbound US 41
  • Constructing flyover ramp over US 41 and US 10/WIS 441 for westbound US 10 to southbound US 41
  • Constructing flyover ramp over US 41 for northbound US 41 to westbound US 10
  • Constructing direct connection ramps for other movements

County P (Racine St.) interchange

Two alternatives were considered in the original study, and a trumpet configuration similar to the current layout was selected as the preferred alternative.

In our renewed study, the location of the interchange was shifted to the north due to the flattening of the horizontal curve on US 10/WIS 441 through this area. A new preferred interchange alternative has been selected to provide smooth traffic flow through the interchange and minimize real estate impacts.

New alternative includes:

  • Constructing new US 10/WIS 441 bridges over Racine St. on and off-ramps and realigning US 10/WIS 441 to flatten horizontal curvature
  • Constructing a more traditional “diamond” style layout for the westbound on and off-ramps and including a roundabout at the westbound ramp terminal intersection
  • Constructing free-flow eastbound on and off-ramps similar to the existing layout
  • Proposing a roundabout at the intersection of Racine St. with the interchange ramps
  • Restricting access from 12th St. to Racine St. to right-in/right-out only

County AP (Midway Rd.) interchange

Three alternatives were considered in the original study, and ‘Modify Existing Diamond’ alternative was selected as the preferred alternative.

In the renewed study, location of the interchange was shifted east due to the flattening of the horizontal curve on US 10/WIS 441 through this area. A new preferred interchange alternative was selected to provide smooth traffic flow through the interchange and minimize real estate impacts.

New alternative includes:

  • Constructing new US 10/WIS 441 bridges over Midway Rd. and realigning US 10/WIS 441 to flatten horizontal curvature
  • Proposing roundabouts at the intersections of County AP with eastbound and westbound entrance and exit ramps
  • Reconstructing portion of County AP in the interchange area
  • Lengthening on and off-ramps

WIS 47 (Appleton Rd.) interchange

Interchange ramp alignments are not expected to change from existing configuration. However, WisDOT will investigate the use of roundabouts at ramp terminal intersections and at intersections of WIS 47 with Valley Rd. and Midway Rd..

Improvements include:

  • Widening US 10/WIS 441 bridges over WIS 47 (Appleton Rd.) to accommodate six lanes
  • Proposing roundabouts at the intersections of WIS 47 with eastbound and westbound entrance and exit ramps
  • Lengthening on and off-ramps

Oneida St. interchange

Interchange ramp alignments are not expected to change from existing configuration.

Improvements include:

  • Widening US 10/WIS 441 bridges over Oneida St. to accommodate six lanes
  • Proposing roundabouts at the intersections of Oneida St. with eastbound and westbound entrance and exit ramps
  • Lengthening on and off-ramps
  • Transitioning from six-lane roadway to existing four-lane roadway east of the interchange

Little Lake Butte des Morts crossing

Improvements include:

  • Adding new parallel bridge south of existing bridge. New bridge will handle eastbound traffic and will have three through lanes and one auxiliary lane
  • Re-decking existing bridge. Existing bridge will handle westbound traffic and will have three through lanes and one auxiliary lane

US 41 interchanges

County II (Winchester Rd.) interchange

Improvements include:

  • Adding turn lanes at ramp and crossroad intersections

County BB (Prospect Ave.) interchange

  • No improvements planned

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