Zoo Interchange Project Information

The Zoo Interchange project touches the cities of Milwaukee, Wauwatosa and West Allis and will cover about nine miles of freeway corridor leading to and through the actual interchange. We will post updates and other resources from the Department of Transportation to this page to assist you during the construction.

Call 1-800-ZOO-0003 24/7 for up-to-date information on getting to Froedtert Hospital.

Milwaukee Regional Medical Center remains accessible from all directions during the week of Sept. 28. Note that these closures are weather dependent and subject to change.

Travel Alerts

Watertown Plank Road Entrance Ramp Opens

The Watertown Plank Road westbound entrance ramp to U.S. 45 northbound reopens to traffic at 6 a.m. on Saturday, Oct. 4. Access will not be available from Watertown Plank Road eastbound.

Wisconsin Avenue Entrance Ramp Closes

The Wisconsin Ave. entrance ramp to U.S. 45 northbound will permanently close by 6 a.m. on Saturday, Oct. 4.

Watertown Plank Road Traffic Shift

There will be a traffic shift to the new roadway on Watertown Plank Road eastbound from Discovery Parkway to 86th Street by 6 a.m. on Friday, Oct. 3. Watertown Plank Road eastbound will be shifted to the new eastbound lanes.

Wisconsin Avenue Lane Closures

  • Two lanes will be closed on Wisconsin Avenue eastbound between 99th and 97th Streets from 9 a.m. – 3 p.m. on Monday Sept. 29.
  • One lane will be closed and the left turn lane restricted on Wisconsin Avenue eastbound between 99th and 97th Streets from 9 a.m. – 3 p.m. on Tuesday – Friday, Sept. 30 – Oct. 3.
  • One lane will be closed on Wisconsin Avenue eastbound between 94th and 95th Streets from 9 a.m. – 6 p.m. from Monday – Friday, Sept. 29 – Oct. 3.
  • One lane will be closed on Wisconsin Avenue westbound between 95th and 94th Streets from 7 a.m. – 3 p.m. from Monday – Friday, Sept. 29 – Oct. 3.

92nd Street Updates

  • Traffic on 92nd Street will shift to the new pavement the week of Sept. 8.
  • The bus stop on the west side of 92nd Street relocated just south of its former location. A temporary bus pad and shelter are now in place and pedestrian crosswalk markings and warning signs have been installed across 92nd Street.

Children’s Hospital Parking Structure

The Children’s Hospital parking structure Level A closed for eight weeks beginning Monday, Sept. 8. Access to the rest of the structure will remain open.

Park & Ride Shuttle Service

Campus shuttles are now running to/from State Fair Park & Ride and Burleigh Street Park & Ride. For more information go to: www.mrmccampus.org/alternate-transportation.

Weekly Traffic Restrictions by Route

From the North

  • Monday – Wednesday, Sept. 29 – Oct. 1: There will be an overnight closure of the ramp from U.S. 45 southbound to I-94 eastbound from 10 p.m. – 5 a.m.
  • Thursday – Friday, Oct. 2 – 3: There will be an overnight closure of the ramp from U.S. 45 southbound to I-94 eastbound from 11 p.m. – 4:30 a.m.
  • LONG-TERM CLOSURE: Use North or Wisconsin Avenues to access Froedtert & the Medical College of Wisconsin facilities. All eastbound ramps at Watertown Plank Road are closed until fall.

From the South

  • Friday, Sept. 26: There will be an overnight closure of U.S. 45 northbound from Wisconsin Avenue to North Avenue from 11 p.m. – 5:30 a.m.
  • Wednesday, Oct. 1: There will be an overnight closure of the Zoo Interchange system ramp from U.S. 45 northbound to I-94 eastbound from 10 p.m. – 5 a.m.
  • Friday, Oct. 3: There will be an overnight closure of I-894/U.S. 45 northbound at Greenfield Avenue from 11 p.m. – 6 a.m.
  • Saturday, Oct. 4: The Watertown Plank Road westbound entrance ramp to U.S. 45 northbound reopens to traffic by 6 a.m.
  • Saturday, Oct. 4: The Wisconsin Avenue entrance ramp to U.S. 45 northbound will permanently close by 6 a.m.

From the East

  • Friday, Sept. 26: There will be an overnight closure of the ramp from I-94 westbound to U.S. 45 northbound from 11 p.m. – 5:30 a.m.
  • Thursday, Oct. 2: There will be an overnight closure of the ramp from I-94 westbound to U.S. 45 northbound from 10:30 p.m. – 4:30 a.m.
  • Friday, Oct. 3: There will be an overnight closure of the ramp from I-94 westbound to U.S. 45 northbound from 11 p.m. – 6 a.m.

From the West

  • Friday, Sept. 26: There will be an overnight closure of the ramp from I-94 eastbound to U.S. 45 northbound from 11 p.m. – 5:30 a.m.
  • Sunday, Sept. 28: There will be an overnight closure of I-94 eastbound at Moorland from 11 p.m. – 4:30 a.m.
  • Sunday, Sept. 28: There will be an overnight closure of the ramp from I-94 eastbound to U.S. 45 northbound from 8 p.m. – 4:30 a.m.
  • Monday – Tuesday, Sept. 29 – 30: There will be an overnight closure of the ramp from I-94 eastbound to U.S. 45 southbound from 11 p.m. – 4:30 a.m.
  • Monday, Sept. 29: There will be a 15-minute rolling full closure on I-94 eastbound at 76th St. from 2 – 4 a.m.
  • Thursday, Oct. 2: There will be an overnight closure of the ramp from I-94 eastbound to U.S. 45 northbound from 10:30 p.m. – 4:30 a.m.
  • Friday, Oct. 3: There will be an overnight closure of the ramp from I-94 eastbound to U.S. 45 northbound from 11 p.m. – 6 a.m.
  • Friday, Oct. 3: There will be a traffic shift to the new roadway on Watertown Plank Road eastbound from Discovery Parkway to 86th Street by 6 a.m.

Ongoing Closures

Watertown Plank Road/U.S. 45 Ramp Closures

Reminder: the following long-term road closures are in effect until late fall.

  • Watertown Plank Road closed under U.S. 45, from Innovation Drive to Discovery Parkway.
  • Watertown Plank Road on-ramps to U.S. 45 southbound and northbound closed.
  • The U.S. 45 northbound off-ramps to Watertown Plank Road are closed.
  • The U.S. 45 southbound off-ramps to Watertown Plank Road eastbound is closed.

A Look Ahead

  • Early October:
    • The westbound Watertown Plank Road entrance ramp to U.S. 45 northbound opens. 
    • The Wisconsin Avenue entrance ramp to U.S. 45 northbound closes. 
    • 76th Street bridge opens.
  • Mid-October:
    • The U.S. 45 northbound exit ramp to eastbound Watertown Plank Road opens. 
    • The U.S. 45 northbound exit ramp to westbound Watertown Plank Road opens. 
    • A single lane in each direction on Watertown Plank Road, under U.S. 45, opens. 
    • Watertown Plank Road, from Discovery Parkway to 87th Street, completed. 
    • The U.S. 45 northbound exit ramp to Wisconsin Avenue closes. 
    • The U.S. 45 northbound exit ramp to Bluemound Road closes. 
    • The U.S. 45 southbound exit to Wisconsin Avenue closes. 
    • Bluemound Road over U.S. 45 closes for demolition and rebuild. 
    • 84th Street closes under I-94. 
    • Highway 100 southbound entrance to I-94 West reopens. 
    • Core Zoo Interchange construction begins.

Available Resources
The latest information on the long-term closures of Watertown Plank Road and U.S. 45 ramps is available to you through several sources.

  • App: A “Travel MRMC” app is now available on Android and iPhone devices. Find your quickest route to campus through construction and traffic congestion.
  • Online: www.MRMCcampus.org or through your organization’s intranet
  • E-mail: Check your inbox for the latest construction information from your organization.
  • Printed materials: Watch your mailbox for a special Milwaukee Regional Medical Center 2014 Route Guide.
  • Phone: Call 1-800-ZOO-0003 for the best route information. Live assistance now available 24/7.
  • Twitter: Sign up to receive the most up-to-date information: @TravelMRMC

Wisconsin Avenue Commuting

Alternative Routes

While Wisconsin Avenue is the most direct route to campus, trying a different route may save you time. Watertown Plank Road remains open during construction from Discovery Parkway to the east. The following options are worth a try.

  • Swan Boulevard: Swan Boulevard is open and delay-free. Swan serves as a vital link to our campus. Access to Swan Boulevard is available from Watertown Plank Road just east of Highway 100 and from North Avenue.
  • Discovery Parkway: Discovery Parkway is open and connects Watertown Plank Road (just west of 92nd Street) to Swan Boulevard. From Swan Boulevard, Discovery Parkway flow freely onto Watertown Plank Road eastbound with no traffic signals or stop signs. Likewise, westbound Watertown Plank Road traffic will flow freely onto northbound Discovery Parkway without traffic signals or stop signs.
  • Highway 100: Highway 100 is fully open between North Avenue and Bluemound Road, including additional through lanes and multiple intersection turn lanes. As an alternative to taking Wisconsin Avenue to campus, take Highway 100 to Watertown Plank Road east — it doesn’t close until just east of Discovery Parkway/Innovation Drive. Turn north onto Swan Boulevard to south Discovery Parkway which flows onto east Watertown Plank Road.

Wisconsin Avenue Parking Restrictions

New parking restrictions are in effect on Wisconsin Avenue between 92nd Street and 87th Street to assist with traffic flow. Parking will no longer be allowed between 6 – 8:30 a.m. and 3:30 – 6 p.m., Monday – Friday.

Bus Route 31 Changes

Route 31 (State – Highland) has new detours in place along Watertown Plank Road between 92nd Street and Innovation Drive/Swan Boulevard. The following detours are now in effect. The new schedule is also available on www.RideMCTS.com.

Fare-Free Route: Pedestrians needing to travel on Watertown Plank Road between 92nd Street and Innovation Drive/Swan Boulevard will not be required to pay a fare when boarding a Route 31 bus from 92nd Street or Watertown Plank Road at Innovation Drive/Swan Boulevard. If a transfer is requested, however, the passenger must pay full fare. Please watch for signs in the area.

Read the latest traffic report

Real-Time Twitter Updates



Receive real-time updates from the Milwaukee Regional Medical Center.

Twitter Feed (@TravelMRMC)

WI-Department of Transportation Links

Map of Construction

Map of Zoo Interchange Project including real-time traveler information and construction schedule information.

Current Travel Times

Make sure you arrive on time by checking the current travel times on construction areas.

Closures and Detours

View the latest highway closures including expected start and end times and detour information.