Brown Road Bridge reconstruction

County Road 146 in Orono

Hennepin County, in partnership with the City of Orono, is currently preparing plans for the replacement of a bridge on Brown Road South (County Road 146). The bridge carries Brown Road over Long Lake Creek located north of Lake Minnetonka just south of Fox Street.

Construction is scheduled to begin June 5, 2017.

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Current work

Over the past few months, crews have made significant progress on the Brown Road (County Road 146) bridge project.

Bridge abutments nearing completion

One of the major activities that is nearing completion is forming and pouring new bridge abutments. Abutments are supporting structures located at each end of the bridge span. They provide support for the entire bridge. Weather permitting, abutment work is expected to be complete by Friday, July 21.

Abutment work

Construction crews work on forming the abutment before pouring.

Erosion protection work begins Monday, July 24

With reconstruction moving at a good pace in this area, crews are expected to begin riprap sloping. Riprap is a man-made form that is comprised of large rocks or concrete objects. It is intended to protect bridge abutments and shorelines from erosion.

This work is expected to last approximately a week, weather permitting.

Structural work follows

Once sloping work is completed, crews will begin structural work of the bridge. Structural work will include placing bridge beams and bearings in order to provide a resting surface for the bridge deck. Structural work is expected to continue into August followed by deck work.

The bridge is expected to reopen later in the fall.

Closures and traffic access

Brown Road Bridge to closed

Since June 5, the Brown Road Bridge (County Road 146) over Long Lake Creek has been closed to traffic as crews began reconstruction.

The bridge is located just south of Fox Street. Built in 1921, it is in critical need of replacement. The reconstructed bridge will meet current standards and be safer for road users with wider shoulders and updated railings.

Work is anticipated to last into the fall.

Brown Road bridge detour map

Project detour map (PDF)

Signed detours will be provided to guide through traffic. Access for local traffic around the bridge closure will be maintained.

Metro Transit during construction

As a result of the bridge project, there will be changes to Metro Transit bus stop locations and route detours. An update will be sent before any changes in bus routes go into effect.

The best way to stay updated on current routes, as well as changes and detours, is to visit Metro Transit's rider alerts website at www.metrotransit.org/rider-alerts. Riders can also contact the Metro Transit hotline at 612-373-3333.

Learn more

Built in 1921, the existing bridge is 23 feet long, 24 feet wide and utilizes steel beams with a concrete deck. It is a two-lane bridge with no shoulders and no pedestrian accommodations. Current sufficiency rating for the bridge is 48.9 out of a possible 100 and is classified as scour critical. The new bridge will have wide shoulders installed, have updated crash-worthy railings and eliminate the scour critical classification.

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