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.

NWZAW has been observed for more than 20 years and was launched as a public awareness campaign to help everyone understand that they play a role in keeping motorists and roadway workers safe.

South Dakota Department of Transportation’s SD511 Traveler Information System informs travelers, law enforcement, emergency responders, and highway maintenance personnel of conditions that affect travel. Its main purpose is to help the public make well-informed travel decisions.

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.

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 https://www.sd511.org/ and the SD511 mobile app for vital traveler information regarding the latest road conditions.

Gearing up for the winter season? When you're visiting sd511.org don't forget to sign-up for customized notifications.

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.

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.

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.

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.