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U.S. Highway 12 Closed between Morristown and Watauga in Corson County

As of Thursday, May 15, 2025, the work zone on U.S. Highway 12 between Morristown and Watauga is closed due to extremely wet weather conditions. Read More

SDDOT Accepting Letters of Intent for Transportation Alternatives (TA) Funding

The TA program uses federal transportation funds, designated by Congress, for specific activities that enhance the inter-modal transportation system and provide safe alternative transportation options. Read More

High Friction Surface Treatment Project Scheduled to Begin in the Custer Area

On Wednesday, May 14, 2025, a High Friction Surface Treatment (HFST) repair project is scheduled to begin on U.S. Highway 16 in the Custer area near the Keystone Wye Bridge. Read More

Project Scheduled to Begin on U.S. Highway 14A Near Deadwood

On Monday, May 12, 2025, work is scheduled to begin on a curb and gutter, erosion repair, and grading project on U.S. Highway 14A near Deadwood and Central City. Read More

Traffic Change Scheduled for S.D. Highway 37 (Dakota Avenue) Project in Huron

On Friday, May 9, 2025, the contractor will be working on utility work completion and placing storm sewer across Dakota Avenue at 2nd Street North. Read More

Shoulder Resurfacing Project Begins on Interstate 29 in Sioux Falls

Crews have begun shoulder resurfacing work on Interstate 29 at exit 84 for approximately one-half mile in Sioux Falls. Read More

White Lake Rest Areas on Interstate 90 Temporarily Closing for Annual Cleaning

The White Lake Rest Areas on both eastbound and westbound Interstate 90 will both be temporarily closing on Wednesday, May 7, 2025, at 7 a.m. for annual spring cleaning. Read More

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2024 Annual Report

Many stories of collaboration and advancement are featured in the 2024 report ranging from new interchanges, public engagement improvements, a coordinated response to a natural disaster, and much more. 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

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

Centerline Rumble Strips (CLRS)

The South Dakota Department of Transportation (SDDOT) will begin to deploy Centerline Rumble Strips (CLRS) on rural roads with 500 or higher Average Daily Traffic (ADT) in order to further prevent head-on and sideswipe crashes. Read More