Watertown Area Projects

S.D. HIGHWAY 15

Project Information: 

Work on the project includes grading, interim surfacing, and structure reconstruction.


Press Releases: 

-March 29, 2021


Detour Maps: 

-Beginning on April 5, 2021
-The car detour route is on Grant County Highway 19/Deuel County Highway 443 from U.S. 212 to S.D. Highway 20. The truck detour route is Highway 20 from Interstate 29 to U.S. 212.

S.D. Highway 15 Car Detour  S.D. Truck Detour  

Contact: 

Watertown Area Office: 605-882-5166

Interstate 29 Northbound

Project Information: 

Work on the project includes overlaying the existing pavement and improving bridge decks and guardrails on the northbound lanes. This project also includes an asphalt overlay of S.D. Highway 10 at Exit 232.


Press Releases: 

-March 25, 2021
-April 23, 2021


Detour Map: 



Contact: 

Watertown Area Office: 605-882-5166

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