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Barrier Repair Project Scheduled to Begin on I-90 at Piedmont and Rapid City
Beginning on Wednesday, March 11, 2026, crews will begin a barrier repair project between the Piedmont service road and the eastbound lanes of Interstate 90. Read MoreIntersection Modification and Traffic Signal Project Begins on U.S. Highway 81 (Broadway Avenue) in Yankton
An intersection modification and traffic signal project has begun on U.S. Highway 81 (Broadway Avenue) in the City of Yankton. Read MoreTemporary Lane Closure Scheduled on Eastbound Interstate 90 (Exit 55) in Rapid City
Beginning at 9 a.m. on Thursday, March 5, 2026, crews are scheduled to make repairs to a tower light located on eastbound Interstate 90 at exit 55 (Deadwood Avenue) in Rapid City. Read MoreClosure Continues on U.S. Highway 385 from Pactola Dam to Taylor Ranch Road Near Hill City
With the planned reconstruction timeline, motorists are reminded that a closure is currently in place from Pactola Dam to Taylor Ranch Road until Friday, March 20, 2026. Read MoreTransportation Alternatives (TA) Recipients Announced by Transportation Commission at February Meeting
The South Dakota Transportation Commission awarded 16 sidewalk, trail, and shared use path Transportation Alternatives (TA) projects totaling approximately $9.5 million at the recent commission meeting held in Pierre. Read MoreRockfall Mitigation to Begin in Cleghorn Canyon on S.D. Highway 44 in Rapid City
Beginning Monday, March 2, 2026, crews will begin a rockfall mitigation project on S.D. Highway 44 across from the Cleghorn Springs State Fish Hatchery in Rapid City. Read MoreBridge Improvement Grant (BIG) Recipients Announced by Transportation Commission at February Meeting
The South Dakota Transportation Commission awarded 21 preservation, rehabilitation, and replacement Bridge Improvement Grants (BIG) totaling approximately $17.8 million at the recent commission meeting held in Pierre. Read MoreFeatured Resources
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Meetings & Events
2026 SDDOT Labor Compliance Webinar
3/10/2026 9:00 AM MT / 10:00 AM CT
The SDDOT and Elation Systems will be hosting a joint webinar, March 10, 2026, at 10 a.m. (CT). SDDOT will be covering the new Davis Bacon Wage Decision and updated Defined Work Classifications, and the basic use of the electronic payroll submission system (EPSS) through Elation System as well as possible compliance issues that may arise.
View DetailsTransportation Commission Meeting 03/12/2026
3/12/2026 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:
View DetailsRailroad Board & Authority Meeting 03/18/2026
3/18/2026 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.
View DetailsTraffic Incident Management System (TIMS) – Box Elder, SD – 3/18/2026
3/18/2026 12:00 PM MT / 1:00 PM CT
Traffic Incident Management Training
This training provides instruction on safe, efficient, and coordinated response to traffic incidents. The course emphasizes responder safety, quick incident clearance, and effective interagency communication to reduce risks and restore normal traffic operations as quickly as possible.
View Details