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
News Stories
Roundabouts, Diverging Diamonds & Speed Limits for Drivers - Keloland 7/26/2024
July 26, 2024
Roundabouts are all over Europe. Now, we are seeing more of them in KELOLAND. The simple rule is that drivers yield to the vehicles already in the roundabout, and they allow drivers to keep moving through the intersection. Traffic engineers say they reduce severe crashes by 80 percent. The newest addition to traffic management in KELOLAND is the diverging diamond.
Lacrosse Street in Rapid City was the first. The 41st Street diverging diamond in Sioux Falls was the second, and the state has more...
2024 Dakotas Transportation Annual - 07/24/024
July 24, 2024
The 2024 Dakotas Transportation Annual contains up-to-date information about some of South Dakota's ongoing infrastructure projects. The publication contains a wealth of resources and information available to its readers.
REad the FUll Publication Here
Complete Concrete Overcomes Complications to Bring New Life to Aging Infrastructure in Hot Springs, South Dakota - Western Builder Magazine July 2024
July 08, 2024
The South Dakota Department of Transportation (SDDOT) is nearing the conclusion of the Hot Springs Urban Reconstruction project in Hot Springs, South Dakota. Located in the southwestern part of the state, the town has a population of approximately 3,500. Despite having a small population, Hot Springs is a popular tourist destination due to the springs and its proximity to other attractions like the Black Hills.Read the full article here
Construction crews working to improve technical roadways - Dakota News Now 07/05/2024
July 08, 2024
Summer tourism and traffic can be a lifeline for some communities, which is why a landslide cutting off Teton Pass Highway in Wyoming to begin the summer season caused concern and logistical issues.
A temporary fix prevented some commuters from continuing to add roughly 90 miles to their commutes, but the delicate project is far from over.
“Our plan is starting to take shape. There’s still a lot of moving parts on that plan, but what we want to do is get traffic back on the original alignment, r...
Sioux Falls diverging diamond officially complete - Keloland 07/02/2024
July 08, 2024
The 41st St. diverging diamond in Sioux Falls is officially complete.
After two and a half years of construction, drivers can finally use the new diverging diamond at the intersection of I-29 and 41st St.
“I would also like to thank the daily commuters that likely found a new route to work,” city of Sioux Falls director of public works Mark Cotter said.Watch and Read the full story here
