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Press Releases
Interstate 90 Nighttime Closures Planned for Reconstruction Project at Piedmont (Exit 46)
Beginning Tuesday, Nov. 3, 2026, eastbound Interstate 90 will be closed nightly from 9 p.m. to 6 a.m. through Thursday, Nov. 5, 2026, for the installation of girders for the new overpass bridge at exit 46. Eastbound traffic will be detoured via exit 46 onto Sturgis Road, then to Stagestop Road, and back onto I-90 at exit 48. Read MoreGovernor Rhoden Leads Groundbreaking Ceremony for Historic Platte-Winner Bridge Construction Project
On Thursday, Oct. 22, 2026, Governor Larry Rhoden and South Dakota Department of Transportation (SDDOT) Secretary Joel Jundt were joined by federal, state, and local leaders for the historic Platte-Winner Bridge groundbreaking event. Read MoreSDDOT Seeks Public Input for Sioux Falls Railroad Corridor Analysis and Crossing Safety Study
The public meeting open house is scheduled for Wednesday, Oct. 28, 2026, from 5-7 p.m. at the City of Sioux Falls - City Center. Read MoreSDDOT Seeks Public Input for 10th and 11th Street Viaducts Replacement Study in Sioux Falls
SDDOT in conjunction with the City of Sioux Falls, South Eastern Council of Governments (SECOG)/Sioux Falls Metropolitan Planning Organization (MPO), and Federal Highway Administration (FHWA) will hold a public meeting open house to discuss the 10th and 11th Street Viaduct Replacement Major Investment Study and gather public input on three options for replacing the viaduct structures. Read MoreSDDOT Seeks Public Input for Rapid City Major Investment Study
The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house on Tuesday, Oct. 20, 2026, and on Wednesday, Oct. 21, 2026, from 5:30 p.m. to 7 p.m. MT. in Rapid City. Read MoreSouth Dakota Transportation Commission Awards Economic Development Grants for Infrastructure Improvement
The South Dakota Transportation Commission recently awarded approximately $2.36 million in economic development grants for infrastructure improvements to rural communities across the state. Read MoreWeekend Road Closure Scheduled for U.S. Highway 14A Near Broken Boot Gold Mine Southwest of Deadwood
A weekend road closure is scheduled to begin on Friday, Oct. 9, 2026, at 10 p.m. for pipe installation on U.S. Highway 14A at the Broken Boot Gold Mine southwest of Deadwood. Read MoreFeatured Resources
2027-2030 Statewide Transportation Improvement Program (STIP)
There will be a hearing before the South Dakota Transportation Commission on Thursday, Oct. 29, 2026, to consider amendments to the following administrative rule: 70:01:02:01– Minnehaha County speed zone rule.
More information about the rule amendment may be found at the following link on the OpenSD website: https://rules.sd.gov/agency?agency=DOT%20%20Department%20of%20Transportation
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Meetings & Events
Transportation Commission Meeting 10/29/2026
10/29/2026 8:00 AM MT / 9:00 AM CT
The agenda and corresponding attachments for the meeting, as well as additional information about the Commission, can be found here Boards and Commissions
View DetailsTransportation Commission Meeting 11/12/2026
11/12/2026 8:00 AM MT / 9:00 AM CT
The agenda and corresponding attachments for the meeting, as well as additional information about the Commission, can be found here Boards and Commissions
View DetailsPublic Information Meeting: S.D. Highway 50 from .2 miles west and .5 miles east of Avon
11/17/2026 4:30 PM MT / 5:30 PM CT
The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house on Tuesday, Nov. 17, 2026, from 5:30 to 6:30 p.m. (CT) to inform area residents of the proposed project on S.D. Highway 50 from approximately one-quarter mile to the west and one-half mile to the east of Avon. The public meeting open house will be held at the Avon Fire Hall, located at 106 1st Ave. E., in Avon.
View DetailsRailroad Board & Authority Meeting 11/18/2026
11/18/2026 10:00 AM MT / 11:00 AM CT
The agenda and corresponding attachments for the meeting, as well as additional information about the Board, can be found here Boards and Commissions
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