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)
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
2023 Sturgis Rally Vehicle Count – Through Day Six
August 10, 2023
The South Dakota Department of Transportation (SDDOT) will provide daily traffic counts for vehicles entering Sturgis for the 83rd Annual Sturgis Motorcycle Rally which runs from Aug. 4-13, 2023.
SDDOT Seeks Public Input on Preliminary Recommendations for Colorado Boulevard Corridor in Spearfish
August 09, 2023
The South Dakota Department of Transportation (SDDOT), in collaboration with the City of Spearfish and HDR, Inc., will hold an open house public meeting at High Plains Western Heritage Center (825 Heritage Dr.) in Spearfish on Thursday, Aug. 24, 2023, from 5:30 to 7 p.m. (MT) to discuss and gather input on preliminary recommendations for the Colorado Boulevard corridor.
Closure Planned for Interstate 229 Northbound Off-ramp at Minnesota Avenue in Sioux Falls
August 09, 2023
Motorists should be aware that a closure is scheduled to begin at 9 a.m. on Monday, Aug. 14, 2023, on the Interstate 229 northbound off-ramp at Minnesota Avenue (exit 3).
Lane Closures Scheduled for Interstate 90 Near Piedmont
August 09, 2023
On Monday, Aug. 14, 2023, crews will begin work on Interstate 90 between exit 44 and exit 48.
Closure Planned for S.D. Highway 19 Near Humboldt (Exit 379)
August 09, 2023
On Thursday, Aug. 10, 2023, work is scheduled to begin on Interstate 90 at Humboldt (exit 379). Motorists should be aware that Highway 19 will be closed under I-90 to allow the work to be completed.
About SDDOT
Aeronautics Commission
Careers at the SDDOT
Careers - SDDOT Scholarships
Careers - Seasonal Positions
Divisions
Mission & Vision
Organizational Chart
Transportation Commission
Railroad Board and Railroad Authority
SD Administrative Rules
SD Codified Law
Region & Area Offices
Forms & Publications
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
Of Interest
© 2025 State of South Dakota. All Rights Reserved.
South Dakota Department of Transportation
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
Powered by:
Modern Logic
Modern Logic
Region & Area Offices
Travelers
© 2025 State of South Dakota. All Rights Reserved.
South Dakota Department of Transportation
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
Powered by:
Modern Logic
Modern Logic