Benson Road and Interstate 229



Project Summary:

Widening Ramps and converting interchange to a Diverging Diamond Interchange (DDI).

View more information on the City of Sioux Falls website

Project Timeline:

April 3, 2023 - Substantial completion in 2024

Overall completion date of June 2025

Year two of construction: March 11, 2024 - Nov. 2024

Benson Road traffic will be maintained on the north side of Benson Road as the south half of Benson Road is being reconstructed.

 

Traffic Control Maps:

Benson Road Year Two Layout PDF

6th Street Phase One Layout PDF

Potsdam Ave. Detour Route PDF  The Contractor will be closing Potsdam Ave. on Tuesday, March 12, 2024, as they remove concrete pavement from Benson Road.

I229 Southbound On-Ramp at Benson Road Closure

 

Project Updates: 

May 13, 2024 - Press Release

Starting Monday, May 20, 2024, through Monday, July 1, 2024, the Interstate 229 southbound on-ramp at the Benson Road Diverging Diamond Interchange (DDI) construction project will be closed for the installation of utilities, grading, and concrete surfacing. During the month-long closure, I-229 on-ramp traffic will be detoured to Benson Road, Cliff Avenue, and Rice Street. Benson Road will remain open from Cliff Avenue to I-229. Access will be maintained to businesses throughout the project.

Motorists should be prepared for delays and use alternate routes during peak travel times through the I-229 and Benson Road construction project. Drivers are urged to use caution and reduce their speed while traveling through the area. Traffic control measures will continue to guide motorists around all closures.



April 22, 2024: 

March 15, 2024 – April 15, 2024, Completed Work Concrete has been removed from Benson Road from Lewis Ave. to Interstate 229. Grading work has begun on Benson Road.  Barrier curb and sidewalk is being removed from the Benson Road Structure. Two-way traffic will be maintained on Benson Road throughout the project.  There is a lane closure in place for southbound Interstate 229 traffic through the Benson Road project.   

Anticipated work in April 15, 2024 – May 15, 2024: Benson Road continues to be graded from Lewis Ave to Interstate 229. Benson Road bridge work will continue  

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April 8, 2024
: The southbound Interstate 229 driving lane has been closed today, Monday, April 8, 2024, as construction crew begin work on the Benson Road bridge at the I-229 and Benson Road interchange. The lane closure is anticipated to be in place through Friday, May 31, 2024. Benson Road will remain open from Cliff Avenue to I-229, while the lane closure is in place. Motorists should be prepared for delays and use alternate routes during peak travel times through the I-229 and Benson Road work area. Traffic control measures will continue to guide motorists around all closures.

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Press Release - April 2, 2024
: Starting Thursday, April 4, 2024, Lewis Avenue will close at Benson Road for the installation of utilities and grading. The closure will be in place through Wednesday, May 8, 2024. Benson Road will remain open to traffic as the contractor works on the south driving lanes from Casco Avenue to Interstate 229. Traffic will be maintained on the north side of Benson Road. Access will be maintained to businesses throughout the project.

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Sept. 26, 2023:

A $34.3 million reconstruction project on Benson Road and the Interstate 229 interchange is unfolding in Sioux Falls, S.D. The undertaking, a combined effort by the South Dakota Department of Transportation (SDDOT) and the city of Sioux Falls, includes construction of a Diverging Diamond Interchange (DDI), structure development work, and road widening. Read the full article here.

 

Project Photos:

 


Project Contract Amount:

$34.3 Million

 

Project Contacts:

Contractor: 
T&R Contracting
Connor Christensen
605-332-1170

SDDOT:
Steven Neumeister  
605-940-1063


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