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S.D. Highway 271 Project to Begin in North Central South Dakota from S.D. Highway 10 to North Dakota Border
Beginning Monday, April 13, 2026, a project is scheduled to begin in north central South Dakota on S.D. Highway 271 from S.D. Highway 10 to the North Dakota border. Read MoreSDDOT Seeks Public Input for Proposed S.D. Highway 28 Bridge Structure Replacement over Lake Poinsett Inlet
SDDOT) will hold a public meeting open house on Thursday, April 23, 2026, from 5:30 – 6:30 p.m. to inform area residents of a proposed bridge structure replacement project on S.D. Highway 28. Read MoreSDDOT Seeks Public Input for Proposed U.S. Highway 12 Structure Replacement over Whetstone Diversion Channel in Big Stone City
SDDOT will hold a public meeting open house on Monday, April 20, 2026, for the proposed structure replacement project on U.S. Highway 12 over the Whetstone Diversion Channel in Big Stone City. Read MoreConstruction Project Scheduled to Begin on S.D. Highway 28 in Toronto
On Thursday, April 9, 2026, an urban reconstruction project will begin on S.D. Highway 28 through Toronto. Traffic control will be placed first. Read MoreSDDOT to Host 2026 Construction Season Kick-Off Webinar for National Work Zone Awareness Week
Webinar scheduled for Friday, April 17, 2026, at 2 p.m. (CT) / 1 p.m. (MT). Read MoreSDDOT to Hold Public Meeting on S.D. Highway 27 Structure Replacement Project between Britton and Langford
The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house on Thursday, April 16, 2026, from 5:30 – 6:30 p.m. (CT) to inform area residents of the proposed S.D. Highway 27 structure replacement project between Britton and Langford. Read MoreTraffic Signals at U.S. Highway 212 and 33rd Street SE in Watertown to be Set for Flashing Operation Mode
Beginning Tuesday, April 7, 2026, the traffic signals located at U.S. Highway 212 and 33rd Street SE in Watertown will be set to a flashing yellow/red operation mode. Read MoreFeatured Resources
Notice of Public Hearing:
Pursuant to the authority vested in the South Dakota Transportation Commission by South Dakota Codified Law chapter 1-26, the Transportation Commission will hold a public hearing in the Commission Room of the Becker Hansen Building at 700 E. Broadway Ave. in Pierre, on Thursday, April 23, 2026, at 9 a.m. (CT) to consider amendments to Administrative Rule of South Dakota numbered: 70:01:02:44 – Lincoln County speed zone rule
The South Dakota Transportation Commission is considering whether to reduce the speed limit on South Dakota Highway 115 around its intersection with South Veterans Parkway in Lincoln County, South Dakota. The current speed limit in that area is fifty-five miles per hour, but a reduced speed limit would be more appropriate in this urban area. The purpose of reducing the speed limit is to enhance safety.
View here: https://rules.sd.gov/
2026 Planned Construction Map
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Meetings & Events
Transportation Commission Meeting 04/09/2026
4/9/2026 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 DetailsTraffic Incident Management System (TIMS) – Sioux Falls, SD – 4/9/26
4/9/2026 5:30 PM MT / 6:30 PM CT
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 DetailsInterstate 29 - Exit 26, S.D. Highway 50, and Exit 31, S.D. Highway 48 Interchanges over I-29 Public Meeting
4/14/2026 4:30 PM MT / 5:30 PM CT
The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house to discuss and receive public input on the above project. A short presentation will take place at 5:30 p.m.
View DetailsRailroad Board & Authority Meeting 04/15/2026
4/15/2026 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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