Construction Begins on S.D. Highway 73 Near Kadoka

For Immediate Release:
Tuesday, March 18, 2025

Contact:
Doug Sherman, Winner Area Engineer, 605-961-4926

KADOKA, S.D. – On Monday, March 17, 2025, construction work began on S.D. Highway 73 from Kadoka to the south for eight miles. The project includes grading, structure replacement, interim surfacing, and lighting. 

Construction work will begin with the removal of asphalt surfacing on the south end of the project. Motorists should expect delays and adjust speeds when driving on dirt surfaces within the work zone. During adverse weather, the driving surface may quickly become impassable. During those times, Highway 73 may be temporarily closed until the surface is dry enough to carry traffic.

The prime contractor on this $25.5 million project is Loiseau Construction Inc. from Flandreau, SD. The overall completion date for the project is June 2026. 

Featured Project Information:
Find more information about this project on the SDDOT website at https://dot.sd.gov/kadoka.

About SDDOT:
The mission of the South Dakota Department of Transportation is to provide a safe and efficient public transportation system.

For the latest on road and weather conditions, road closures, construction work zones, commercial vehicle restrictions, and traffic incidents, please visit https://sd511.org or dial 511.

Read more about the innovative work of the SDDOT at https://dot.sd.gov.

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