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 for Proposed U.S. Highway 12 Reconstruction Project through Selby
March 29, 2022
The South Dakota Department of Transportation (SDDOT) will hold a public meeting open house on Tuesday, April 19, 2022, from 5:30 – 6:30 p.m. (CT) to inform area residents of the proposed U.S. Highway 12 reconstruction project through Selby.
Grade Raise on U.S. Highway 81 by Arlington to Begin
March 28, 2022
The South Dakota Department of Transportation (SDDOT) will begin a permanent grade raise on U.S. Highway 81 south of Arlington through the Twin Lakes area. Highway 81 will close to through traffic on Monday, April 4, 2022, as work on the grade raise begins.
Deck Rehabilitation to Begin on Cambell Street Bridge in Rapid City
March 28, 2022
The South Dakota Department of Transportation (SDDOT) says bridge deck improvements on the Cambell Street bridge, between Saint Patrick Street and the East Saint Joseph Street ramps, will begin on Monday, April 4, 2021. The work will primarily take place on the bridge deck surface with supporting work occurring underneath the bridge.
S.D. Highway 15 Closing to Traffic in Grant County
March 24, 2022
The South Dakota Department of Transportation (SDDOT) says that a section of S.D. Highway 15 will be closed to traffic in Grant County beginning on Monday, April 4, 2022.
Interstate 90 Construction Beginning in McCook County
March 23, 2022
The South Dakota Department of Transportation (SDDOT) says work is underway to reconstruct Interstate 90 westbound lanes from Salem to Humboldt.
