Greenway bridges

Portland Avenue (County Road 35) and Cedar Avenue (County Road 152) Midtown Greenway bridges reconstruction projects 

Hennepin County is reconstructing the Portland Avenue (County Road 35) and Cedar Avenue (County Road 152) bridges over the Midtown Greenway in Minneapolis in 2017.

Reconstruction is needed to address safety and structural issues due to the age of the bridges. Both of the century-old bridges will be reconstructed in their original historic style, and receive design and functional improvements.

Work is expected to take place over one construction season, beginning in early spring 2017

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Construction updates

Updated April 27, 2017 

Portland and Cedar Avenues to close May 8 for greenway bridge demolition

Starting Monday, May 8, Portland Avenue (County Road 35) and Cedar Avenue (County Road 152) in Minneapolis will close between 28th Street and Lake Street as reconstruction of the two bridges over the Midtown Greenway begins. 

Both bridges will be closed to all road traffic for the duration of the project. Work is expected to last one construction season and be significantly complete with the road reopened by December this year. See below for detour information.

There will also be some short-term lane reductions on Portland and Cedar avenues ahead of the full closure May 8, so crews can complete prep work on sanitary sewer lines. The reductions will occur during off-peak times and should not impact traffic significantly. The work is tentatively scheduled for May 4 and 5.

Greenway trail closure at Cedar Avenue expected May 15

Starting Monday, May 15, the greenway trail is expected to close at Cedar Avenue as crews demolish the bridge. This work is expected to last several days with the trail reopened by the weekend. See below for detour information.

Once demolition of the Cedar Avenue bridge is complete and the trail is reopened, crews will begin demolition of the Portland Avenue bridge and the trail will be closed at this location for approximately five days. This closure is expected to happen Monday, May 22. 

Efforts will be made throughout construction to minimize trail impacts whenever possible. In general, crews will stagger work so the trail is not closed at both bridge locations at once. Full closures of the trail are expected to be relatively infrequent and short-term.

 

Detours, closures and travel considerations

Updated April 2017

Starting Monday, May 8, both Portland and Cedar Avenues will be closed to all traffic between 28th Street and Lake Street for the reconstruction of the bridges over the Midtown Greenway. 

The roadways over the bridges will be closed for the duration of the projects.

Trail impacts will be minimized whenever possible, but occasional closures, detours and other impacts should be expected throughout 2017. Work impacting trail users will generally be staggered to avoid simultaneous closures at both locations.

Upcoming greenway trail closures:

All trail closure dates are estimates and subject to change.

May 15-19 (Cedar Avenue): Trail closure is needed for bridge demolition. 

May 22-26 (Portland Avenue): Trail closure is needed for bridge demolition.

 

Portland Avenue bridge detour

Trail

  • Park Avenue (existing bike lane for southbound, temporary contraflow bike lane for northbound)
  • East 28th Street (temporary two-way protected bike lane on south side of street)
  • 5th Avenue South (shared roadway use)

Road (motor vehicles)

  • Franklin Avenue (County Road 5)
  • Chicago Avenue South
  • Lake Street (County Road 3)

Road (bikes) 

  • East 28th Street 
  • 4th Avenue South
  • E 32nd Street

Portland detour graphics (PDF)

Cedar Avenue bridge detours

Trail

  • 18th Avenue South (shared roadway use)
  • East 28th Street (temporary two-way protected bike lane on south side of street)

Road

  • Lake Street (County Road 3)
  • Hiawatha Avenue (Highway 55)

 Cedar detour graphics (PDF)

Project information

Hennepin County is reconstructing the Portland Avenue and Cedar Avenue bridges over the Midtown Greenway in Minneapolis in 2017. To minimize impacts on trail and road users, reconstruction work will occur on both bridges simultaneously and major closures will be coordinated between the two projects when possible.

Reconstruction of the bridges is needed to address safety and structural issues due to the age of the bridges.

Portland Avenue layout (PDF)

Cedar Avenue layout (PDF)

Design changes

During reconstruction, improvements will be made to the design and function of the bridges, while maintaining their historic architectural styles.

Portland Avenue planned improvements

  • Widening sidewalk on bridge deck from eight to 10 feet
  • Changing traffic lanes from three ten-foot through lanes to two 13-foot through lanes
  • Adding a three-foot buffer to the existing 6-foot bike lane
  • Adaptable design to accommodate possible future transit infrastructure

Portland Avenue bridge cross section (PDF)

Cedar Avenue planned improvements

  • Widening sidewalk on bridge deck from eight to 10 feet
  • Changing traffic lanes from four 10-foot lane through lanes to two 11-foot through lanes and two 13-foot through lanes
  • Adding structural reinforcements beneath the bridge deck to extend longevity
  • Adaptable design to accommodate possible future transit infrastructure

Cedar Ave bridge cross section (PDF)

Construction Timeline

Construction work is expected to begin in early spring 2017 and last through fall 2017.

Public involvement

Upcoming engagement activities

There are no upcoming engagement activities scheduled at this time.

Past public engagement activities

  • Project staff presented plans for the Cedar and Portland bridge reconstructions at the Midtown Philips neighborhood meeting on March 28, 2017. The meeting was held at Abubakar As Saddique Islamic Center.
  • Community open house on Wednesday February 15, 2017 at the Midtown Greenway Coalition offices.
  • Project staff presented plans for the Cedar Avenue bridge reconstruction at the East Phillips Improvement Coalition neighborhood meeting on February 9, 2017. The meeting was held at East Philips Park Cultural and Community Center.
  • Project open house on August 24, 2016 at the Midtown Greenway Coalition offices  to present preliminary designs and gather public feedback.
  • A "pop-up" meeting held on the Greenway on August 31, 2016 to present preliminary designs and gather public feedback.

Open House and "pop-up" meeting presentation boards (PDF)

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