Press Releases

SDDOT Hosting Public Meeting for Public Input for I-90/U.S. Highway 85 Spearfish Rest Area/Welcome Center Corridor Study

March 22, 2023
The South Dakota Department of Transportation (SDDOT), in collaboration with the South Dakota Department of Tourism and Stantec Consulting, will hold an open house public meeting at Spearfish City Hall, located at 625 N. 5th St. in Spearfish, on Wednesday, April 5, 2023, from 5:30 to 7 p.m. A short presentation will be provided at 5:45 p.m.

Interstate 29 Reopened From Watertown to North Dakota State Line (3/22/23)

March 22, 2023
Northbound and southbound lanes of Interstate 29 from Watertown to the North Dakota state line reopened at 8 a.m. on Wednesday, March 22, 2023.

Interstate 29 Scheduled to Close at 7 p.m. (Tuesday, March 21, 2023) from Watertown (exit 177) to North Dakota State Line

March 21, 2023
Interstate 29 (both northbound and southbound) will be closed from Watertown (exit 177) to the North Dakota state line at 7 p.m. on Tuesday, March 21, 2023.

Construction to Resume on 41st Street DDI Construction Project in Sioux Falls

March 20, 2023
The South Dakota Department of Transportation (SDDOT) says that phase two construction of the 41st Street Diverging Diamond Interchange (DDI) project will begin on Monday, March 27, 2023.

Interstate 90 Construction Project Begins Near Humboldt

March 20, 2023
The South Dakota Department of Transportation (SDDOT) says work is scheduled to begin on Interstate 90 near Humboldt (exit 379) to Buffalo Ridge (exit 390) on Monday, March 20, 2023.