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Interstate 90 Nighttime Closures Planned for Reconstruction Project at Piedmont (Exit 46)
October 29, 2026
Beginning Tuesday, Nov. 3, 2026, eastbound Interstate 90 will be closed nightly from 9 p.m. to 6 a.m. through Thursday, Nov. 5, 2026, for the installation of girders for the new overpass bridge at exit 46. Eastbound traffic will be detoured via exit 46 onto Sturgis Road, then to Stagestop Road, and back onto I-90 at exit 48.
Governor Rhoden Leads Groundbreaking Ceremony for Historic Platte-Winner Bridge Construction Project
October 22, 2026
On Thursday, Oct. 22, 2026, Governor Larry Rhoden and South Dakota Department of Transportation (SDDOT) Secretary Joel Jundt were joined by federal, state, and local leaders for the historic Platte-Winner Bridge groundbreaking event.
SDDOT Seeks Public Input for Sioux Falls Railroad Corridor Analysis and Crossing Safety Study
October 16, 2026
The public meeting open house is scheduled for Wednesday, Oct. 28, 2026, from 5-7 p.m. at the City of Sioux Falls - City Center.
SDDOT Seeks Public Input for 10th and 11th Street Viaducts Replacement Study in Sioux Falls (1)
October 13, 2026
SDDOT in conjunction with the City of Sioux Falls, South Eastern Council of Governments (SECOG)/Sioux Falls Metropolitan Planning Organization (MPO), and Federal Highway Administration (FHWA) will hold a public meeting open house to discuss the 10th and 11th Street Viaduct Replacement Major Investment Study and gather public input on three options for replacing the viaduct structures.
SDDOT Seeks Public Input for Rapid City Major Investment Study
October 09, 2026
The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house on Tuesday, Oct. 20, 2026, and on Wednesday, Oct. 21, 2026, from 5:30 p.m. to 7 p.m. MT. in Rapid City.
