South Dakota Department of Transportation
State Government: Agencies/Departments/Divisions | Transportation
Recent News About South Dakota Department of Transportation
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Tabor-Platte rail trail feasibility study meetings announced by SDDOT
Public meetings have been scheduled to discuss the Tabor to Platte Rail to Trail Feasibility Study.
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Highway 16A in Custer State Park closed for church relocation
U.S. Highway 16A in Custer State Park will experience a temporary closure on Wednesday, February 26, 2025.
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Interstate 229 nighttime closures set for February in Sioux Falls
Two nighttime closures are planned for Interstate 229 in Sioux Falls to allow crews to work on sign structures.
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Bridge repairs scheduled on Interstate 29 near Jefferson & Elk Point
Work is set to begin on Interstate 29 at exit 9, with construction projected to start at exit 15 by late April.
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SDDOT outlines plans for 2025 spring load restrictions
The South Dakota Department of Transportation (SDDOT) has announced that highway maintaining authorities may impose load restrictions on roads between February 15 and April 30.
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Public invited to discuss future plans for Brookings area transportation
The South Dakota Department of Transportation (SDDOT), in partnership with the City of Brookings, is organizing a public meeting open house to discuss the development of a long-range transportation plan for the Brookings area.
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South Dakota DOT announces meeting for highway reconstruction in Pine Ridge
The South Dakota Department of Transportation (SDDOT) has announced an informational meeting to discuss the reconstruction project of U.S. Highway 18 and S.D. Highway 407 in Pine Ridge.
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Lane reduction set for I-229 northbound in Sioux Falls starting January 27
Beginning Monday, January 27, 2025, Interstate 229 northbound in Sioux Falls will undergo a lane reduction.
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South Dakota Transportation Hall of Honor Committee Accepting Nominations
The Transportation Hall of Honor Committee is accepting nominations for review and consideration for induction into the South Dakota Transportation Hall of Honor.
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SDDOT to Host 2023 Construction Kickoff Meeting on Hot Springs Urban Reconstruction Project
The South Dakota Department of Transportation (SDDOT), in cooperation with the City of Hot Springs, Avid4 Engineering, and Complete Concrete, Inc. will hold a construction meeting for the U.S. Highway 385 and U.S. Highway 18 urban reconstruction project in Hot Springs.
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SDDOT Seeks Public Input into the Interstate 29 (Exit 133) Interchange Modification Study
The South Dakota Department of Transportation (SDDOT), in collaboration with the City of Brookings and the Federal Highway Administration (FHWA), will hold a public meeting open house from 5:30 p.m. to 7 p.m. on Wednesday, February 15, 2023, in the council chambers of the Brookings City-County Government Center, located at 520 3rd St. in Brookings.
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Creativity Flourishes in Third Annual SDDOT Snowplow Naming Contest
The third annual Name the Snowplow Contest began in November, before the snow began to fly in earnest.
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Gov. Noem Announces Additional Guard Missions in Response to Winter Storms
On December 23, 2022, Gov. Kristi Noem announced additional missions that are being undertaken by the South Dakota National Guard in response to the winter storms across South Dakota.
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Gov. Noem Declares Winter Storm Emergency
Activates National Guard
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S.D. Highway 38 Closure Planned at Interstate 90 near Hartford for Bridge Repair
Repair work is scheduled to begin on the Interstate 90 eastbound bridge structure over S.D. Highway 38 (exit 390 at Hartford).
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New Construction Material Requirements for Build America, Buy America Act Begin in January
The new Act requirements will take effect Wednesday, Jan. 11, 2023, for all South Dakota Department of Transportation projects.
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Illegally Dumped Snow Causes Safety Issues
The South Dakota Department of Transportation (SDDOT) reminds the public and commercial snow removal operators that it is illegal to place or dump excess snow on highway right-of-way, which includes driving surfaces, shoulders, and ditches.
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U.S. Highway 212 Reopened Through Watertown
The South Dakota Department of Transportation (SDDOT) says that the project contractor, J&J Earthworks, Inc., has reopened U.S. Highway 212 to traffic.
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Public Comment Period Open for Draft Memorandum of Agreement for Ellis & Eastern Sioux Falls Area Railroad Bridges
The South Dakota Department of Transportation (SDDOT) was awarded a 2019 Special Transportation Circumstance (STC) Federal Grant to replace the current timber pile approaches (both east and west ends) with steel H-pile and pre-cast concrete tubs on two historic bridges (P-125 and P-131) in the Sioux Falls area.
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S.D. Highway 46 Reopened to Through Traffic Near Irene
The South Dakota Department of Transportation (SDDOT) says that S.D Highway 46 in Yankton County has been reopened to through traffic for the winter months.