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South DakotaDepartment of Transportation

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Inside SDDOT

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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 16A in Keystone

Project Home Contacts Public Involvement

SDDOT:
Isaac Schulz
605-673-4948

Contractor:
Complete Concrete
605-388-0111

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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Travelers

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Forms & Publications

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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

U.S. Highway 16A in Keystone

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Region & Area Offices

Travelers

Forms & Publications

© 2026 State of South Dakota. All Rights Reserved.