South DakotaDepartment of Transportation

Aviation

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Bridges

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Highways

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Public Transit

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Railroads

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Doing Business

Certification & Accreditation

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Contractors

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Engineering/Design Services

Consultant Services Downloadable Files Manuals News & Updates Right of Way / Relocation Assistance Standard Bid Items Standard Plates Surveyors Utility Coordination

Environmental

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Local Governments

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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 Tentative Statewide Transportation Improvement Program – STIP Transportation Asset Management Plan (TAMP)

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Civil Rights

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Outdoor Business Signing

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Programs

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Travelers

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Inside SDDOT

About SDDOT

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Region & Area Offices

Region and Area Offices Aberdeen Mitchell Pierre Rapid City Maintenance Unit Map (Region/Area)

Of Interest

Buckle Up Phone Down SDDOT Snowplow Naming Contest Work Zone Awareness Week 2025 Graduates Other State DOTs

KOTA TV Talks about Rock Fall Mitigation Project in Spearfish Canyon

KOTA story about the rockfall mitigation project in Spearfish Canyon (7/22/25)

https://www.kotatv.com/video/2025/07/22/south-dakota-department-transportation-looking-protect-highway-14a-future-damage/

South Dakota Department of Transportation
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501

605-773-3265 (voice) 605-773-6214 (fax) Contact Us

Region & Area Offices

Region and Area Offices Aberdeen Mitchell Pierre Rapid City Maintenance Unit Map (Region/Area)

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South Dakota Department of Transportation
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501

605-773-3265 (voice) 605-773-6214 (fax) Contact Us

KOTA TV Talks about Rock Fall Mitigation Project in Spearfish Canyon

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Region & Area Offices

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© 2025 State of South Dakota. All Rights Reserved.