
Sioux Falls Road Construction: What To Expect in 2025
Now that we've officially crossed over into spring we can be on the lookout for a few things, birds in the sky, green grass and flowers, and of course orange barrels on our roads.
Welcome to Sioux Falls's 2025 Road Construction Season!
This year, Sioux Falls will see a number of different projects impacting traffic throughout the city with five major tasks dominating the $70 million Capital Improvement Program:
- Arrowhead Parkway and Veterans Parkway Intersection
This project will fully reconstruct and widen the intersection of Arrowhead Parkway and Veterans Parkway. Work on Arrowhead Parkway will extend from Highline Avenue to Tenth Street, and work on Veterans Parkway will extend from Sixth Street to 26th Street.
Work will include underground utility improvements, a stormwater detention pond, three pedestrian underpasses, six retaining walls, grading, concrete surfacing, signing, street lighting, traffic signals, and a landscaped median.
As part of the project, Sixth Street between Foss Avenue and Veterans Parkway has opened to traffic to help alleviate traffic congestion due to this year’s intersection project.
Arrowhead Parkway will be closed east of the intersection during the 2025 construction. Veterans Parkway will remain open to one lane of traffic in each direction during construction.
Construction is expected to continue into November, as weather permits. Work will resume as weather allows in 2026 and continue until the project is substantially complete in November 2026.

- 12th Street from Ellis Road to Marion Road
The project consists of an asphalt overlay on the existing concrete surface to improve the ride for drivers. Other work occurring with the project includes accessible curb ramp replacement, storm drainage improvements, lighting improvements, and traffic system improvements.
During the work, 12th Street will be reduced to one lane of traffic in each direction between Ellis Road and Marion Road throughout construction.
This project is expected to begin in May and be completed this fall.
- Cliff Avenue and Interstate 229 Interchange
This will fully reconstruct the Cliff Avenue and I-229 interchange. Cliff Avenue will be reconstructed between 38th Street and the Spencer Park entrance, and the 41st Street intersection will be realigned further to the north.
Work will include underground utility improvements, two pedestrian underpasses, grading, concrete surfacing, signing, street lighting, and traffic signals.
I-229 traffic will have two lanes of traffic maintained in each direction throughout construction. The southbound on- and off-ramps will be closed during 2025, but the northbound on- and off-ramps will remain open.
Cliff Avenue will be reduced to one lane in each direction while school is in session.
Cliff Avenue will be fully closed between 38th Street and I-229 during the summer but should reopen to one lane of traffic in each direction by the time school starts this fall.
In 2026, the northbound on- and off-ramps will be closed, but the southbound on- and off-ramps will be open.
Construction is expected to continue into November as weather permits. Work will resume as weather allows in 2026 and continue until the project is substantially complete in the fall of 2026.
- 85th Street and Interstate 29 Diverging Diamond Interchange
This project consists of the construction of a new diverging diamond interchange at 85th Street and I-29.
Work will include underground utility installation, a pedestrian underpass, grading, concrete surfacing, signing, street lighting, and traffic signals.
The interchange project is expected to begin construction later this year and be completed in late 2026.
- South Veterans Parkway—Cliff Avenue to Sycamore Avenue
This project will consist of construction on South Veterans Parkway between Cliff Avenue and Sycamore Avenue.
Work will include underground utility installation, grading, concrete surfacing on Veterans Parkway, asphalt surfacing on Southeastern Avenue and Sycamore Avenue, signing, street lighting, and traffic signals.
Southeastern Avenue and Sycamore Avenue will be closed while construction is occurring in these intersections, but only one intersection will be closed at a time.
Southeastern Avenue will not close until school is out for the summer and will reopen before school starts in the fall.
No impacts are expected to traffic on Cliff Avenue.
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