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Pavement Repair Project Scheduled to Begin on Interstate 90 West of Spearfish
Beginning Monday, July 13, 2026, a pavement repair project is scheduled to begin on the eastbound lanes of Interstate 90 west of Spearfish. Read MoreSDDOT Seeks Public Input for Proposed Project on S.D. Highway 25 Near Scotland
SDDOT will hold a public meeting open house on Tuesday, July 28, 2026, for a proposed grading, surfacing, and structure project on S.D. Highway 25 from two and one-half miles north of S.D. Highway 50 to U.S. Highway 18 near Scotland. Read MoreLane and Road Closures Scheduled for Interstate 229 and Cliff Avenue at Exit 4 in Sioux Falls
Beginning Monday, July 13, 2026, temporary lane and road closures are scheduled on Interstate 229 (I-229) and Cliff Avenue at exit 4 in Sioux Falls to allow crews to set bridge girders for the new northbound I-229 bridge. Read MoreAsphalt Paving Project Scheduled on S.D. Highway 271 Near Artas
On Wednesday, July 15, 2026, asphalt paving will begin on S.D. Highway 271, from S.D. Highway 10 to the North Dakota border. Read MoreLane Closures Scheduled on Interstate 29 and S.D. Highway 115 near Dell Rapids
On Wednesday, July 8, 2026, lane closure will be placed on Interstate 29 from mile marker 70 to 62, and on S.D. Highway 115 for three miles near Dell Rapids. Read MoreS.D. Highway 44 East of Lennox Scheduled to Reopen to Traffic
On Wednesday, July 1, 2026, S.D. Highway 44 from 279th Street to 280th Street on the east side of Lennox will reopen to traffic on a primed gravel surface. Read MorePaving Project Scheduled to begin on S.D. Highway 27 South of Langford
On Monday, June 29, 2026, an asphalt concrete paving project is scheduled to being on S.D. Highway 27, approximately two miles south of Langford. Read MoreFeatured Resources
2026 Planned Construction Map
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Meetings & Events
Tentative 2027-2030 STIP Public Meeting July 14
7/14/2026 1:00 PM MT / 2:00 PM CT
Live virtual presentations will be provided to share statewide project information for the Tentative 2027-2030 STIP.
Tuesday, July 14, 2026, at 2 p.m. CT/1 p.m. MT
Register in advance to participate virtually by clicking this Zoom link: https://state-sd.zoom.us/meeting/register/dzpIN9s1TTaSK8NsQ6iyLA
View DetailsRailroad Board & Authority Meeting 07/15/2026
7/15/2026 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
View DetailsAeronautics Commission Meeting 07/16/2026
7/16/2026 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 DetailsTentative 2027-2030 STIP Public Meeting July 16
7/16/2026 6:00 PM MT / 7:00 PM CT
Live virtual presentations will be provided to share statewide project information for the Tentative 2027-2030 STIP.
Thursday, July 16, 2026, at 7 p.m. CT/6 p.m. MT
Register in advance to participate virtually by clicking this Zoom link: https://state-sd.zoom.us/meeting/register/pnQObf20R6CwNStMPjAZVw
View Details