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
SDDOT Seeks Public Input on the Tripp County Master Transportation Plan
April 15, 2024
The South Dakota Department of Transportation (SDDOT), in coordination with Tripp County, will hold a public meeting open house on Tuesday, April 23, 2024, from 5:30 – 7 p.m. to inform residents and business owners about the county’s first master transportation plan.
Temporary Closure Scheduled for S.D. Highway 19 Near Humboldt Exit
April 12, 2024
(UPDATE: Due to forecasted rains, this temporary closure is rescheduled to Thursday, April 18, 2024.)
On Tuesday, April 16, 2024, bridge work is scheduled to begin on Interstate 90 near Humboldt, exit 379. This bridge work will result in a temporary closure of S.D. Highway 19 underneath I-90 as contractors remove the existing structure. The Highway 19 closure is scheduled for 8 a.m.
National Work Zone Awareness Week - April 15-19, 2024
April 11, 2024
National Work Zone Awareness Week (NWZAW) is an annual awareness campaign held at the start of construction season to remind drivers to be attentive through work zones during the busy summer travel months. The official theme for NWZAW 2024, is “Work zones are temporary. Actions behind the wheel can last forever.”
Signals at Crazy Horse Memorial and Oreville Junction Scheduled to Be Activated
April 10, 2024
Beginning Wednesday, May 1, 2024, the traffic signals at both Crazy Horse Memorial and U.S. Highway 16/S.D. Highway 244 at Oreville Junction will once again be activated.
Intersection Improvement Project Scheduled to Resume at Blunt Junction
April 10, 2024
During the week of April 15, 2024, work will resume on the reconstruction project at the Blunt Junction (intersection of U.S. Highways 14 and 83) located four miles west of the town of Blunt.
