Sioux Falls - 60th Street N. over Interstate 229


Project Summary:

Located on the east side of Sioux Falls on 60th St. N, is a four-span prestressed bridge built-in 1961 crosses over I229 just south of the I90/I229 interchange. The current bridge 50-221-170 has a 30ft wide roadway that carries two-way traffic over I229 with no sidewalks for pedestrians. Due to the expected increase in traffic volumes and the bridge nearing the end of its service life, a new bridge is scheduled to replace the existing one.

The new bridge will be able to accommodate a higher traffic volume in the future along with pedestrian needs and future growth. The new bridge will be a two-span steel girder bridge with a 40 ft wide roadway. This bridge will be constructed to accommodate two lanes of traffic as well as pedestrians with a sidewalk on the north side of the structure. The new structure will also be able to accommodate a bridge widening in the future to the south, along with an exit planned to connect I229 and 60th St. N.

Project Timeline: 

The new bridge construction is planned to start on May 23, 2022, with an expected completion date of August 11, 2023.

Project Detours and Project Plans:

60th St N was officially closed to thru traffic on May 31st, 2022
The Contractor is anticipating the start date of the bridge demolition on September 20, 2022


Public Detour Map for 60th Street Closure

Traffic Control Plans for Contractors (PDF)


Project Updates: 

Aug. 1, 2023

July Completed Work: The contractor finished paving and installing the guardrail in July. The bridge was opened to traffic in mid-July as the contractor finished punch list items. The project is very close to being completed.  

Anticipated work in August: The contractor will continue finishing punch list items for the bridge until Aug. 11, 2023. 


June 30, 2023: 
On Thursday, July 6, 2023, a nighttime closure is planned for the 60th Street Bridge over Interstate 229 just south of the Interstate 90/229 interchange. Read the full press release here.


June 29, 2023:

June Completed Work:  The contractor finished pouring the sidewalk and approach slabs on the bridge. All bridge work is completed except for the slope protection and sidewalk fence. The contractor is currently paving 60th St N on both sides of the bridge to tie into the existing roadway.  

Anticipated Work in July: The contractor plans to finish paving and installing the guardrail at the beginning of July. Once complete, traffic will be allowed onto 60th St N. Simultaneously, the contractor will move equipment and supplies out of the I-229 median and open the passing lanes for both North and South directions.  


May 24, 2023:

May Completed WorkThe Contractor poured the barriers on the bridge and placed a finished surface on the concrete. Simultaneously, the Contractor has placed backfill material at the bridge ends to build the subbase to elevation before building the approach slabs.  

Anticipated Work in June: The Contractor plans to pour the sidewalk and approach slabs on both sides of the bridge. This process also includes the installation of pedestrian railings attached to the bridge. In addition, the base course will be hauled and placed before paving occurs on 60th St N.   


April 28, 2023: 

April Completed Work:  The Contractor placed the deck steel and poured the bridge deck as expected. Minor adjustments with additional soil were added on the embankments accommodate the equipment required to place concrete on the bridge deck.  

Anticipated work in May:  The Contractor plans to pour the sidewalk and barrier railing on the bridge. In between these two separate pours, the Contractor will place drop inlets and place fill material behind each abutment for the bridge.  


January 18, 2023
The South Dakota Department of Transportation (SDDOT) says that work will begin on Tuesday, Jan. 24, 2023, for the 60th Street Bridge over Interstate 229 just south of the Interstate 90/229 interchange. Read the full press release here.

September 19, 2022:
The South Dakota Department of Transportation (SDDOT) says that bridge demolition will begin on Tuesday, Sept. 20, 2022, for the 60th Street Bridge over Interstate 229 just south of the I-90/229 interchange.

May 18, 2022

Project Photos:

February 2023: 

January 2023:

December 2022:

November 2022:

October 2022:

September 2022:

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July 2022:

June 2022:

May 2022: 





Project Contract Amount:

$6.5 Million 


Project Contacts: 

Contractor: Grangaard Construction, Inc of Watertown, SD

SDDOT: Greg Aalberg 605-367-5680



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