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)
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
Centerline Rumble Stripe Projects Scheduled to Begin in Rapid City Region
April 21, 2026
Beginning Tuesday, April 28, 2026, crews will begin installing centerline rumble stripes and performing crack sealing on multiple highways throughout the Rapid City region.
Asphalt Paving Project Scheduled to Begin on U.S. Highway 16A in Custer State Park
April 20, 2026
Beginning Tuesday April 21, 2026, an asphalt paving project is scheduled to begin on U.S. Highway 16A in Custer State Park over pipe and box culvert replacement areas that have been completed.
S.D. Highway 25 Closure Planned for Grading Project Near Bradley
April 15, 2026
On Tuesday, April 21, 2026, crews will begin grading work on S.D. Highway 25 from S.D. Highway 20 north for approximately four miles.
Project Scheduled to Begin on U.S. Highway 212 between Eagle Butte and La Plant
April 14, 2026
On Monday, April 20, 2026, a project is scheduled to begin on U.S. Highway 212 from just east of Eagle Butte to La Plant.
Project Scheduled to Begin on S.D Highway 44 by Lennox
April 14, 2026
Beginning Monday, April 20, 2026, S.D. Highway 44 will be closed from the south side of the Oriole Avenue intersection to the intersection of Highway 44 (280th Street) to begin grading work by Lennox.
About SDDOT
Aeronautics Commission
Careers at the SDDOT
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
© 2026 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
© 2026 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
