South DakotaDepartment of Transportation
Transportation
Aviation
About Office of Aeronautics Services
Office of Aeronautics Services
Airports Conference
Aerospace Education
Airport Information
Links
Aviation Systems Plan
Bridges
Office of Bridge Design
Design & Plans
Historical Bridges
Inventory & Inspection
Posted Structures
Reference Information
SD Bridge Photos
Doing Business
Certification & Accreditation
About Certification & Accreditation
SDDOT Accreditation Certification List
Approved Products
Manuals & Documents
Welding Certifications
Training
Contractors
Bid Letting Information
Concrete Pipe Release
Contractors/Suppliers
Prequalified Contractors
CMS Web Reports
Disadvantaged Business Enterprise (DBE)
Fuel Price Index
Labor Compliance
Materials
Preconstruction Meetings
Price Adjustment Guidelines
Standard Specifications
Subcontract Requirements
Forms & Documents
Webinars
Alternative Contracting
Engineering/Design Services
Consultant Services
Downloadable Files
Manuals
News & Updates
Right of Way / Relocation Assistance
Standard Bid Items
Standard Plates
Surveyors
Utility Coordination
Environmental
About Environmental
Agreements
Endangered Species
Environmental Assessments
Forms
Stormwater
Wetland Mitigation
Local Governments
About Local Governments
Bridge Improvement Grants
City/County Fund Balances
Emergency Relief (ER)
Federal Bridge Program
Forms & Documents
Secure Accounts Billing
Transportation Economic Development Grants
Urban Systems
Rural Access Infrastructure Fund Program
Traffic Incident Management
Training
Projects & Studies
Planning
Carbon Reduction Strategy
Freight Plan
Long Range Plan
Metropolitan Planning Organization
Non-state Public Road Inventory
Pavement Condition Monitoring
Pavement Management
South Dakota EV Fast Charging Plan
Statewide Transportation Improvement Program – STIP
Transportation Asset Management Plan (TAMP)
Construction Projects
Inside SDDOT
Forms & Publications
Brochures
Forms
Manuals
Maps
Newsletters
Reports
SDDOT Engagement Opportunities
Join One of Our Contact Lists
Press Releases
Media Kits
News Stories
Branding and Identity Guidelines
Learn More about the SDDOT Logo
SDDOT Blog
Press Releases
Asphalt Surfacing to Begin on S.D. Highway 20 in Perkins County
August 16, 2021
The South Dakota Department of Transportation (SDDOT) says crews will begin asphalt resurfacing operations the week of Aug. 23, 2021, for 30 miles on S.D. Highway 20 from Prairie City to Meadow Corner.
Chip Seal and Fog Seal Projects to Begin in Pierre Area
August 13, 2021
The South Dakota Department of Transportation (SDDOT) says chip seal and fog seal applications will be applied to several highways in the Pierre area. The contractor will start on Tuesday, Aug. 17, 2021,
Paving Operations to Begin on Interstate 229 Between Exit 2 (Western Avenue) and Exit 1 (Louise Avenue)
August 13, 2021
South Dakota Department of Transportation (SDDOT) says beginning Tuesday, Aug. 17, crews will begin paving operations on Interstate 229 between exit 2 (Western Avenue) and exit 1 (Louise Avenue).
Interstate 90 Off-Ramp Closure Planned at Exit 390 (Buffalo Ridge) Near Hartford
August 12, 2021
The South Dakota Department of Transportation (SDDOT) says that a closure is planned for the westbound off-ramp at Exit 390 (Buffalo Ridge) on Interstate 90 near Hartford.
S.D. Highway 87 to be Closed Through Portions of Wind Cave National Park
August 12, 2021
According to Wind Cave National Park, S.D. Highway 87 will be closed starting on Aug. 16, 2021, through Oct. 12, 2021, due to maintenance on the Beaver Creek Arch Bridge (mile marker 41.3) and the Pigtail Bridge (mile marker 43.0).
