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
Fifth Annual SDDOT Snowplow Naming Contest Underway
November 06, 2024
The Fifth Annual Snowplow Naming Contest hosted by the South Dakota Department of Transportation (SDDOT) is now open and will run through Friday, Dec. 6, 2024.
Temporary Off-Ramp Closure Scheduled on Interstate 90 at Exit 379 (Humboldt)
November 05, 2024
At approximately 9 a.m. on Thursday, Nov. 7, 2024, a temporary off-ramp closure is scheduled on Interstate 90 at exit 379 (Humboldt).
SDDOT Seeks Public Input on Traffic Study in Spearfish
November 03, 2024
The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house to discuss and receive public input on a recently completed traffic study for the area of Old U.S. Highway 14, Interstate 90 (exit 10), and North Avenue in Spearfish. The public meeting open house is scheduled for Tuesday, Nov. 19, 2024, at the Spearfish School District Career and Technical Education Center.
Southbound Lane of Interstate 190 Closure Planned for Bridge Repair Work on Interstate 90 in Rapid City
October 31, 2024
Beginning at 8:30 a.m. (MT) on Monday, Nov. 4, 2024, the southbound lane of Interstate 190 (over Interstate 90) will be closed to continue bridge repair work due to an over height load hit.
Pre-Construction Informational Meeting Scheduled in Rapid City for Next Phases of U.S. Highway 385 Project
October 30, 2024
The South Dakota Department of Transportation (SDDOT) will hold a pre-construction informational meeting to share details about the next phase of the U.S. Highway 385 construction project. The meeting will be held on Thursday, Nov. 21, 2024, from 5-7 p.m. (MT) at Rimrock Church, located at 12200 S.D. Highway 44 in Rapid City.
