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South Dakotans Shaping the Future of Transportation
June 30, 2026
Public engagement is at the heart of effective transportation planning, and at the South Dakota Department of Transportation (SDDOT), the voices of residents, businesses, community leaders, and travelers help shape the system used every day across the state. As South Dakota prepares for the Tentative 2027–2030 Statewide Transportation Improvement Program (STIP), SDDOT is inviting South Dakotans to lean, participate, and help guide future investments.
SDDOT Earns Performance Excellence Network (PEN) Excellence Award
May 12, 2026
The Performance Excellence Network (PEN), a regional Baldrige-based program serving South Dakota, North Dakota, and Minnesota, recently recognized 18 recipients across multiple organizations with 2025 Performance Excellence Awards at the annual conference. The South Dakota Department of Transportation (SDDOT) was one of the recipients; and the only organization to earn the Excellence Award designation – the highest recognition level awarded by PEN.
National Work Zone Awareness Week (NWZAW) April 15-19, 2026
March 26, 2026
As construction season ramps up across South Dakota and the nation, it’s time for an important annual reminder: safety in work zones saves lives. National Work Zone Awareness Week (NWZAW) is a nationwide campaign held each spring to encourage drivers to stay alert, reduce distractions, and use extra caution when traveling through road construction areas.
Move Over Law - July 1, 2025
June 02, 2025
South Dakota’s updated Move Over Law became effective as of Tuesday, July 1, 2025. The updated law now applies to all vehicles occupying the shoulder using amber, yellow, or blue warning lights.
Diverging Diamond Interchange (DDI)
June 01, 2025
The LaCrosse Street Diverging Diamond Interchange (DDI) in Rapid City and the 41st Street DDI in Sioux Falls were designed to enhance safety and address future travel needs in high volume intersections within two communities experiencing population growth. The DDI design improves safety by reducing vehicle conflict points.
