Contacts

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 Transportation Asset Management Plan (TAMP)

Studies

Special Studies

Public Meetings

Construction Projects

Programs & Services

Civil Rights

Americans with Disabilities Act (ADA) Civil Rights Program Equal Employment Opportunity (EEO) On-the-Job Training (OJT) Title VI Tribal Relations (TERO)

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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Forms & Publications

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SDDOT Engagement Opportunities

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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 Snowplow Blizzard Bracket

U.S. Highway 81 Through Yankton

Project Home Contacts

SDDOT:
Naren Pamarthi: 605-668-2929

Contractor:

Muth Electric Inc. 605-996-7300

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)

DOT Intranet

Request Public Records
State of SD Home Page

Travelers

Bicycle/Pedestrian Rest Area/Ports of Entry Road Construction/Travel Conditions Spring Load Restrictions Sturgis Rally Travel Information FAQ Truckers Winter Travel Alerts & Road Condition Information

Forms & Publications

Brochures Forms Manuals Maps Newsletters Reports

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

U.S. Highway 81 Through Yankton

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Region & Area Offices

Travelers

Forms & Publications

© 2026 State of South Dakota. All Rights Reserved.