New Closure Planned for I-29/41st Street Project in Sioux Falls
Traffic flow in and around an ongoing road construction project on 41st Street and Interstate 29 in Sioux Falls is being changed again.
The South Dakota Department of Transportation says that beginning Monday (June 5) at 7:00 AM, access to Shirley Avenue from 41st Street in Sioux Falls will be closed to through traffic to allow crews to reconstruct Shirley Avenue from Shirley Place to 41st Street.
That closure will remain in effect until late June. Access to local businesses will be maintained.
The work is all part of the 41st Street Diverging Diamond Interchange Project, which has been underway at the I-29 interchange since April of last year.
When it's completed by June of 2024, the new interchange will increase traffic flow in the area and reduce the number of accidents getting on and off the interstate.
The project's website describes a diverging diamond interchange as:
The DDI resembles a conventional diamond interchange. Drivers make right turns at a DDI just as they would at a regular diamond interchange. Drivers who want to turn left cross over to the left side of the road and then make their left turn. Because traffic is on the left side of the road between the crossover points, all left turns occur without having to cross opposing traffic.