“Definitely an exciting feature that we’re rolling out this year on SD 511,” SDDOT […] KELO Sioux Falls. Counties, tribes can add winter information to SD511. Story by Kelli Volk ...

South Dakota’s 511 traveler information telephone service started as #SAFE (#7223) in November 1996, then became 5-1-1 in 2001. SDDOT marks '511 Day' on Saturday Skip to main content Skip to ...