I-229/26th Street/Southeastern Avenue Reconstruction Projects
26th Street and Interstate 229, including the Southeastern Avenue intersection, will be reconstructed beginning in 2019. The project will be a two-year project and is jointly funded by the South Dakota Department of Transportation and the City of Sioux Falls. The project area is experiencing high crashes, long driver delays, and has outdated geometrics. The project will add a railroad overpass, add turn lanes at Southeastern Avenue and 26th Street and also 26th Street and Interstate 229 to improve travel times and safety through the area. The project will also improve pedestrian movements across the interstate. 26th Street will remain open throughout the project.
- March 25, 2019 - Begin construction, closing southern lanes of 26th Street
- May 2, 2019 - Close Southeastern Ave south of 26th St
- March 28, 2019 - Begin demolition of bridges over I-229 and Big Sioux River
- April, 2019 - Close Yeager Road
- October 2019 - Complete bridges over I-229 and Big Sioux River/BNSF
- November 2019 - Phase 1A/B completed
Commuter Route Information
26th St will remain open with one lane each direction
Southeastern Ave south of 26th St and Yeager Road will close later this spring.
Detour routes will include: Cliff Ave, 57th St, and Sycamore Ave