2023 SDDOT Annual Report

As demonstrated in the report, the 2022-23 winter season was one for the record-books. Our SDDOT winter maintenance staff (and those behind the scenes) worked countless hours to keep South Dakota’s Interstate and state highway system clear and safe in some of the toughest winter weather conditions experienced in recent years.

Why Navigation Apps Are Not Helpful During Winter Weather Events

Many motorists plug their travel destination into a navigation app to find the fastest and most efficient route possible. While these navigation apps can be useful, it is best to put them away during winter weather events and turn to and the SD511 mobile app for vital traveler information regarding the latest road conditions.

Gear up for winter and sign up for notifications through SD511!

Gearing up for the winter season? When you're visiting don't forget to sign-up for customized notifications.

Vote for the SDDOT in America's Transportation Awards!

On Wednesday, Sept. 13, 2023, the American Association of State Highway and Transportation Officials (AASHTO) unveiled the Top 12 contenders competing for two national 2023 America’s Transportation Awards.

Move Over, It’s the Law

South Dakota’s Move Over law requires travelers to move over and/or slow down when a stopped vehicle is in use of amber, yellow, or blue warning lights.

Sign Up for Notifications Through SD511

The SDDOT 511 system is designed to help travelers access information regarding road conditions, construction, and severe weather, via the Web or phone—24/7 to make their travels in South Dakota more enjoyable and safer.

Work Zone Awareness

National Work Zone Awareness Week (NWZAW) is an annual spring campaign held at the start of construction season to remind drivers to be attentive while traveling through work zones during the busy summer travel months.

Working Through Winter - How a SDDOT Project Continues to Move Forward Despite Harsh Conditions

Even in the brutal cold of the winter months, the SDDOT still makes significant progress on important construction projects. One of these projects during the winter of 2023 is the Day County Highway 446A bridge replacement over Blue Dog Lake, located northeast of Waubay.

What is the SDDOT Winter Highway Maintenance Plan?

When winter arrives each year, the South Dakota Department of Transportation (SDDOT) is responsible for performing maintenance activities on nearly 7,800 miles of roadways.

How well is the SDDOT doing, customers provide input!

In 2021, the South Dakota Department of Transportation (SDDOT) conducted a Statewide Customer Satisfaction Survey of residents and key customer groups including senior citizens, truckers, farmers/ranchers, and emergency vehicle operators. Take a look at the results.
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