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


Project Updates: 

Completed work: The Contractor completed the girder placement for the bridge. For the remaining month of February, the work will continue for the construction of the abutments as well as decking for the bridge pour.

Anticipated work to be completed: Grading for the substructure is almost complete. Retaining walls on the west side of I229 are being installed. Work on the structure will continue throughout the winter with a substantial completion date to have the roadway open to traffic by June 2023.

Project Photos:

February 2023: 

January 2023:

December 2022:

November 2022:

October 2022:

September 2022:

August 2022:

July 2022:

June 2022:

May 2022: 





Project Contract Amount:

$6.5 Million 


Project Contacts: 

Contractor: Grangaard Construction, Inc of Watertown, SD

SDDOT: Corey McClelland 605-940-1879



TransportationDoing Business
Certification & AccreditationContractorsEngineering/Design ServicesEnvironmentalLocal Governments
Projects & Studies
PlanningStudiesConstruction ProjectsSDDOT InnovationPublic Meetings
Programs & ServicesTravelersInside SDDOTDOT Fact BookBlogsHome test