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
News Stories
KELO: Major changes coming to Minnesota Avenue-I-229
February 11, 2026
The I-229 interchange reconstruction project in Sioux Falls continues on to Minnesota Avenue. A temporary road closure caused a snag in traffic Wednesday morning.
DRG Media Group: Informational meeting being held next week for season two of Euclid Avenue Reconstruction Project in Pierre
February 12, 2026
An informational meeting to discuss the second year of reconstruction on Euclid Avenue (S.D. Highway 1889, formerly U.S. Highways 14/83) in Pierre will be held next week (Feb. 19, 2026).
SDDOT Reminders for Upcoming 2026 Spring Load Restrictions
February 12, 2026
Under the authority of SDCL 32-22-24, Highway Maintaining Authorities may restrict loads anytime between February 15 to April 30 to protect their highways from break-up during the spring thaw.
SDDOT Seeks Public Input for Development of Brookings Area Transportation Plan
February 10, 2026
The South Dakota Department of Transportation (SDDOT), in conjunction with the City of Brookings, will hold a public meeting open house on Wednesday, Feb. 25, 2026, from 4 – 6 p.m. to discuss and receive public input on the development of the Brookings Area Transportation Plan (BATP).
AASHTO Journal: Latest Two-Minute Update Profiles South Dakota DOT
February 06, 2026
The American Association of State Highway and Transportation Officials recently released the latest episode in its “State DOT 2-Minute Update” video series; this one focusing on the South Dakota Department of Transportation.
