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Press Releases›

Interstate 29 Lane Closures Planned as Part of 41st Street DDI Construction Project in Sioux Falls

The South Dakota Department of Transportation (SDDOT) says that northbound and southbound Interstate 29 will be reduced to two lanes in each direction in the passing lanes at the 41st Street interchange beginning Monday, March 27, 2023, while crews begin work on the 41st Street Bridge. Read More

Work Scheduled to Resume on U.S. Highway 18 in Winner

The South Dakota Department of Transportation (SDDOT) says that work is scheduled to resume on the reconstruction of U.S. Highway 18 in Winner on Thursday, March 23, 2023. Read More

2023 Spring Load Restriction – Press Release #4 (Week of March 27 - 31, 2023)

Spring Load Limit Restrictions will apply to the road segment(s) and at the indicated weight limit Read More

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

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.Read More

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

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.Read More

S.D. Highway 46 Reconstruction Project Near Irene to Resume

The South Dakota Department of Transportation (SDDOT) says the reconstruction project on S.D. Highway 46, from U.S. Highway 81 to the west edge of the City of Irene, is tentatively scheduled to resume on Monday, April 3, 2023. Read More

South Dakota Transportation Hall of Honor Committee Accepting Nominations

The Transportation Hall of Honor Committee is accepting nominations for review and consideration for induction into the South Dakota Transportation Hall of Honor. Read More

SDDOT Seeks Public Input for Proposed U.S. Highway 18 Reconstruction Project in Davis

The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house on Monday, March 27, 2023, from 5:30 – 6:30 p.m. CT to inform area residents of the proposed U.S. Highway 18 reconstruction project from Railroad Avenue to Montana Avenue in the town of Davis.Read More

SDDOT Seeks Public Input for Proposed U.S. Highway 18 Reconstruction Project in Hutchinson County

The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house at 5:30 p.m. on Thursday, March 30, 2023, at the Tripp-Delmont School, located at 105 S. Sloan St. in Tripp. The public meeting is being held to discuss and receive public input on the proposed project on U.S. Highway 18 from one mile east of S.D. Highway 37 to S.D. Highway 25 in Hutchinson County. Read More

SDDOT Seeks Public Input into the Interstate 29 (Exit 133) Interchange Modification Study

The South Dakota Department of Transportation (SDDOT), in collaboration with the City of Brookings and the Federal Highway Administration (FHWA), will hold a public meeting open house from 5:30 p.m. to 7 p.m. on Thursday, March 30, 2023, in the council chambers of the Brookings City-County Government Center, located at 520 3rd St. in Brookings. Read More

Featured Resources

2023 Hall of Honor Nomination Form The deadline for submitting nominations is 5 p.m. on Friday, May 19, 2023.
Rules Hearing before the Interim Rules Review Committee on April 11, 2023
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View the 2022 – 2023 Snowplow Contest Winners
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2022-23 Winter Highway Maintenance Plan

2023-2026 Statewide Transportation Improvement Program (STIP)
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Working Through Winter - How a SDDOT Project Continues to Move Forward Despite Harsh Conditions

Even in the brutal cold of the winter months, the SDDOT still makes significant progress on important construction projects. One of these projects during the winter of 2023 is the Day County Highway 446A bridge replacement over Blue Dog Lake, located northeast of Waubay.Read More

What is the SDDOT Winter Highway Maintenance Plan?

When winter arrives each year, the South Dakota Department of Transportation (SDDOT) is responsible for performing maintenance activities on nearly 7,800 miles of roadways. Read More

How well is the SDDOT doing, customers provide input!

In 2021, the South Dakota Department of Transportation (SDDOT) conducted a Statewide Customer Satisfaction Survey of residents and key customer groups including senior citizens, truckers, farmers/ranchers, and emergency vehicle operators. Take a look at the results. Read More

Gear up for winter and sign up for notifications through SD511!

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

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