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Lane Closure Scheduled for Minnesota Avenue at Interstate 229 in Sioux Falls

Beginning at 8:30 a.m. on Wednesday, July 16, 2025, the northbound outside lane of Minnesota Avenue will be closed between the Interstate 229 northbound on-ramp and the I-229 southbound off-ramp. Read More

SDDOT Seeks Public Input for the Bryant Master Transportation Plan Study

The South Dakota Department of Transportation (SDDOT), in collaboration with the City of Bryant, will hold a second public meeting open house on Wednesday, July 23, 2025, from 5:30 to 7 p.m. at Bryant City Center, located at 115 E. Main St. in Bryant. Read More

Bridge Replacement Project to Begin on S.D. Highway 34 Near Union Center

On Wednesday, July 16, 2025, crews will begin a project to remove the bridge over East Elm Creek on S.D. Highway 34 located seven miles west of Union Center. Read More

Railroad Crossing at U.S. Highway 14/U.S. Highway 281 Junction Near Wolsey Scheduled to Close Temporarily

On Wednesday, July 16, 2025, the Burlington Northern Santa Fe Railroad Company will be conducting railroad crossing replacement work near the U.S. Highway 14 and U.S. Highway 281 north junction located four miles north of Wolsey. Read More

Shared Use Path to be Detoured on the Pierre Side of the Missouri River Bridge

Beginning on Tuesday, July 15, 2025, bike and pedestrian traffic on the Pierre side of the Missouri River Bridge will be detoured. Read More

Multiple Chip Seal and Fog Seal Projects Scheduled to Begin in the Pierre Area

On Tuesday, July 15, 2025, crews will begin a chip seal and fog seal project on several routes in the Pierre area. Read More

Structure Work Scheduled on Southbound Interstate 29 Over 12th Street and Ellis and Eastern Railroad in Sioux Falls

On Monday, July 14, 2025, work is scheduled to begin on the Interstate 29 southbound structures over 12th Street and the Ellis and Eastern Railroad tracks in Sioux Falls. Read More

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- Thursday, July 17, 2025, at 7 p.m. (CT). Virtual meeting - online only. Zoom Meeting Registration Link
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South Dakota Transportation Commission will be considering amendments to the following rule: ARSD 70:01:02:44 – Lincoln County speed zone rule. The rules hearing date is July 24, 2025 at 9:00 a.m. Central Time.
A link to the Open SD website where more information can be found is: https://rules.sd.gov/agency.aspx?agency=DOT%20%20Department%20of%20Transportation

2025-2028 Statewide Transportation Improvement Program (STIP)
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Highway Needs and Project Analysis Report (Needs Book) 2022 - Interactive Map - (under pavement management products)

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Updated Move Over Law in South Dakota

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. Read More

Diverging Diamond Interchange

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. Read More

Make our Roads Safer: We challenge you. Buckle Up, Phone Down!

South Dakota is one of 28 states that participate in the Buckle Up Phone Down (BUPD) safety campaign. The Buckle Up Phone Down challenge is simple: when you get into any vehicle, buckle up your seatbelt. If you are a driver, put the cell phone down. Turn it off if you have to. Every trip, every time! Read More

2024 South Dakota Strategic Highway Safety Plan (SHSP)

The 2024 South Dakota Strategic Highway Safety Plan (SHSP) details a vision for highway safety in South Dakota and outlines interim objectives to progress toward a safer transportation system. Throughout the Plan, there are many informative graphics that help illustrate the importance of highway safety. Read More