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
Public Involvement
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
Temporary Road Closure Scheduled for Minnesota Avenue at Interstate 229 in Sioux Falls
February 04, 2026
On Wednesday, Feb. 11, 2026, South Minnesota Avenue at Interstate 229 will be temporarily closed beginning at 9:30 a.m. as contractors install the temporary bridge over Minnesota Avenue.
Agencies Seek Public Comment on Draft Agreement in South Dakota
February 02, 2026
The South Dakota Department of Transportation (SDDOT), in collaboration with the Federal Highway Administration (FHWA), is seeking public comment on the draft 2026 Section 106 Programmatic Agreement (PA) for the Federal Aid Highway Program in South Dakota.
SDDOT Snowplow Contest Winners . . . Like a Rhinestone Plowboy - Riding out in a Plow on a Snow-Filled “Roadeo”
January 16, 2026
The South Dakota Department of Transportation (SDDOT) is excited to announce another round of outstanding winners in the sixth annual snowplow naming contest.
Yankton County Highways Scheduled for Closure for James River Bridge Replacement Project
January 15, 2026
Beginning on Tuesday, Jan. 20, 2026, Yankton County Highway 587 (Stone Church Road) and County Highway 217 (Northwest Jim River Road) will be closed to through traffic for the replacement of the James River Bridge.
S.D. Highway 127 Scheduled to Close for Bridge Replacement Project Near Sisseton
January 15, 2026
Beginning on Tuesday, Jan. 20, 2026, a bridge and box culvert replacement project is scheduled to begin over the Little Minnesota River on S.D. Highway 127 near Sisseton.
