South Dakota Road Closures

Road closures are a frequent part of life in South Dakota. Check road conditions before you drive, especially in the winter.
Written by Alison Daurio
Reviewed by Jessica Barrett
Updated on Mar 23, 2023
Road closures in South Dakota usually accommodate road maintenance or construction, but severe winter weather can also cause unexpected shutdowns. You can check the 511 traveler information service for live updates on traffic conditions and road closures in South Dakota.
If you’ve ever been caught on I-90 in the middle of a blizzard, you may have been directed off the interstate and into the nearest town to wait out the storm. While most South Dakota road shutdowns are due to roadwork, if you’re
driving in the snowy season
, it’s important to stay on top of traffic information and plan travel routes accordingly.
We're here to help you prepare for highway shutdowns in South Dakota
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How to check for road closures in South Dakota

South Dakota drivers are familiar with road closures due to accidents, roadwork, or bad weather. But road closures aren’t always predictable—and running into one without advance notice can be a major inconvenience. 
If you drive on South Dakota’s interstates, you can stay ahead of road closures by visiting
or calling 511. This traveler information service gives drivers general information about traffic in South Dakota, including details about roads that are closed, blocked, or impassable
 If you’re outside the state but plan to travel into South Dakota, you can call 866-MYSD511 (866-697-3511) for information about road closures. You can also download the SDDOT 511 app to get real-time access to traffic information from the South Dakota Department of Transportation.

Rapid City road closures 

For drivers in
Rapid City
, you can find a list of scheduled road closures

What to do if you witness an accident

In addition to scheduled construction and inclement weather, car accidents are a major source of road shutdowns. Here’s what you should do if you witness an accident while driving:
  • Stay calm and focus on the road. 
  • Find a safe place to pull over and call 911.
  • If it’s safe to do so, exit your vehicle and aid the victims
  • If you’re driving on a road where an accident occurred, slow down and follow
    South Dakota move-over laws
    for emergency vehicles.  
The best way to prevent additional accidents at the scene of a collision is by driving responsibly. It can be tempting to rubberneck, but another accident will not only cause extended road closures, it will raise your insurance rates, too.

How to save on car insurance in South Dakota

While driving in South Dakota can be stressful—especially if you run into unanticipated road closures—saving money on your car insurance doesn’t have to be. Whether you’re just trying to meet
South Dakota’s car insurance laws
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