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Chip Seal and Fog Seal Project Scheduled to Begin in Sioux Falls Area

On Tuesday, June 2, 2026, crews will begin a chip seal and fog seal project on several routes in the Sioux Falls Area. Read More

SDDOT Seeks Public Input for Proposed Structure Replacement Project on S.D. Highway 22 near Clear Lake

The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house on Wednesday, June 10, 2026, from 5:30 – 6:30 p.m. (CT) to inform area residents of a proposed bridge structure replacement project on S.D. Highway 22. Read More

SDDOT Seeks Public Input on Proposed Design for U.S. Highway 85 Reconstruction Project in Lawrence County

SDDOT will host a public meeting open house on Thursday, June 4, 2026, from 5:30 to 7 p.m. (MT) to share the proposed design for the U.S. Highway 85 reconstruction project from the Wyoming state line to U.S. Highway 14A (Cheyenne Crossing) in Lawrence County. Read More

Road Closure Scheduled on S.D. Highway 11 near Corson

Beginning Monday, June 1, 2026, S.D. Highway 11 will be closed from just north of 257th Street to 258th Street near Corson Read More

Closures Scheduled for Cliff Avenue at Interstate 229 in Sioux Falls

Beginning on Friday, May 29, 2026, the current two-way traffic configuration on Cliff Avenue between 41st Street and the Spencer Park access road will be switched from the two inside lanes to the two northbound lanes in Sioux Falls. Read More

SDDOT Seeks Public Comment on Temporary Racetrack Trail Closure in Meade County

SDDOT, in cooperation with the Federal Highway Administration (FHWA), is seeking public comment on a proposed Section 4(f) de minimis impact determination related to the temporary closure of a segment of the Racetrack Trail in Meade County. Read More

Road Closure Scheduled on S.D. Highway 248 Between Presho and Kennebec

Beginning on Tuesday, May 26, 2026, a project to repair a box culvert is scheduled to begin on S.D. Highway 248 in Lyman County. Read More

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SDDOT Earns Performance Excellence Network (PEN) Excellence Award

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. Read More

National Work Zone Awareness Week (NWZAW) April 20-24, 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. Read More