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SDDOT Seeks Public Comment on Draft Section 4(f) De Minimis Evaluation for Proposed Project on S.D. Highway 15 in Deuel County
The South Dakota Department of Transportation (SDDOT) has proposed a project to reconstruct S.D. Highway 15 from Clear Lake to the junction of U.S. Highway 212 to increase the shoulder width, re-establish ditch section, and flatten out deficient vertical curves. Section 4(f) of the Department of Transportation Act of 1966 (49 U.S.C. 303) requires a special effort be made to preserve the natural beauty of the countryside and public and recreation lands, wildlife and waterfowl refuges, and historic sites. Read MoreTransportation Commission Awards Funding for Forty Local Bridge Projects
The South Dakota Transportation Commission awarded funding for forty local bridge projects totaling approximately $3.5 million at their regularly scheduled meeting in Pierre on Thursday, Aug. 27, 2026. Read MoreTraffic Signal Improvement Project Scheduled for Sioux Avenue and Pierre Street Intersection in Pierre
From 7 a.m. to 5 p.m. on Sunday, Aug.30, 2026, the traffic signals at the intersection of U.S. Highway 14 (Sioux Avenue) and S.D. Highway 1889 (Pierre Street) will be temporarily turned off while a new traffic signal cabinet is installed. Read MoreSDDOT Seeks Public Comment on Draft Section 4(f) De Minimis Evaluation for Proposed Project on U.S. Highway 385 in Lawrence County
The South Dakota Department of Transportation (SDDOT) has proposed a project to reconstruct a horizontal curve on U.S. Highway 385 located four miles south of U.S. Highway 85 in Lawrence County. Section 4(f) of the Department of Transportation Act of 1966 (49 U.S.C. 303) requires a special effort be made to preserve the natural beauty of the countryside and public and recreation lands, wildlife and waterfowl refuges, and historic sites. Read MoreMultiple Bridge Deck Chip Seal Projects Scheduled to Begin in Rapid City Area
Beginning Monday, Aug. 31, 2026, crews will begin a bridge deck chip seal project at three different locations in the Rapid City area. Read MoreTraffic Switch Scheduled on S.D. Highway 28 Project in Toronto
On Monday Aug. 24, 2026, a traffic switch is scheduled on S.D. Highway 28 through Toronto. Read More2026 Sturgis Motorcycle Rally Vehicle Count – Through Day Ten
The South Dakota Department of Transportation (SDDOT) provided daily traffic counts at nine locations for vehicles entering Sturgis for the 86th Annual Sturgis Motorcycle Rally, from Aug. 7-16, 2026. Read MoreFeatured Resources
2026-2029 Statewide Transportation Improvement Program (STIP)
On Wednesday, Sept. 9, 2026, the Interim Rules Review Committee of the South Dakota Legislature will consider amendments adopted by the South Dakota Transportation Commission to the administrative rule ARSD 70:01:02:62 – Union County speed zone rule.
Additional information about these rule amendments is available on the South Dakota Administrative Rules website.There will be a hearing before the South Dakota Transportation Commission on Tuesday, Sept. 22, 2026, to consider amendments of the following administrative rules:
- 70:01:02:01 – Minnehaha County speed zone rule;
- 70:01:02:39 – Jackson County speed zone rule;
- 70:01:02:59 – Sully County speed zone rule;
- 70:07:01:01 – Definitions;
- 70:07:04:09 – Reasons for Debarment;
- 70:07:04:10.02 – Hearing request; and
- 70:07:04:15 – Term of debarment.
More information about the rule amendments 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 09/10/2026
9/10/2026 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 DetailsRailroad Board & Authority Meeting 09/16/2026
9/16/2026 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 DetailsAeronautics Commission Meeting 09/17/2026
9/17/2026 1:00 PM MT / 2:00 PM 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 09/22/2026
9/22/2026 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
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