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Construction Scheduled to Resume on S.D. Highway 37 Near Mitchell
On Monday, March 24, 2025, construction work will resume on S.D. Highway 37 from the bridge at the Lake Mitchell Spillway through the intersection of Main Street and the S.D. Highway 37 Bypass. Read MoreConstruction Begins on S.D. Highway 73 Near Kadoka
On Monday, March 17, 2025, construction work began on S.D. Highway 73 from Kadoka to the south for eight miles. Read MoreLane Closures Scheduled on I-90 and Exit 406 at Brandon
On Monday March 24, 2025, lane closures will be placed on westbound Interstate 90 at Brandon (exit 406) as part of the Diverging Diamond Interchange (DDI) reconstruction project. Read MoreUrban Reconstruction Project to Resume on S.D. Highway 37 (Dakota Avenue) in Huron
On Wednesday, March 19, 2025, work will resume on the S.D. Highway 37 (Dakota Avenue) reconstruction project through Huron. Read MoreSDDOT in Search of Borrow Material Providers for S.D. Highway 37 Project North of Huron
The SDDOT is reaching out to area landowners to generate interest as a borrow provider Read MoreConstruction Scheduled to Begin on Bridge Replacement Project on S.D. Highway 79 in Harding County
Construction Scheduled to Begin on Bridge Replacement Project on S.D. Highway 79 in Harding County Read MoreU.S. Highway 81 Lane Closure Scheduled Near Madison
Beginning on Monday, March 17, 2025, a lane closure will be placed on U.S. Highway 81 in Lake County near the city of Madison. Read MoreFeatured Resources
Condensed External Winter Highway Maintenance Plan
Full External Winter Highway Maintenance Plan
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2025-2028 Statewide Transportation Improvement Program (STIP)
Highway Needs and Project Analysis Report (Needs Book) 2022 - Interactive Map - (under pavement management products)
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