The South Dakota Department of Transportation is celebrating “511 Day” today (May 11, 2024).
South Dakota’s 511 traveler information telephone service started as #SAFE (#7223) in November 1996, then became 511 in 2001. Now it also includes a website at https://sd511.org and a mobile app, SDDOT 511.
The free service provides real-time travel information, including incidents, road conditions, closures, construction and weather forecasts, 24 hours a day, 365 days per year. As the SDDOT gears up for a busy summer construction and travel season, South Dakota citizens can continue to turn to SD511 for all of their traveler information needs.
Over the course of its 28 years, SD 511 has had:
- 25 million https://sd511.org website user engagements;
- Over four million phone calls to 511 South Dakota;
- Seven million SDDOT 511 mobile app user engagements;
- 325 thousand SDDOT 511 mobile app downloads; and,
- Three million My511SD alerts via email or text message.






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