S.D. Highway 47 Lyman County Fort Thompson to Iona

Project Summary:

This project will consist of asphalt concrete surfacing, pipe repair, and box culvert replacements.

Sign Up for Text Notifications:

For updates on MAJOR traffic changes, subscribe to a free text-in service. To subscribe, simply text the keyword listed below to 605-566-4041. Subscribers can unsubscribe at any time. 

Text Lyman47 to 605-566-4041

Project Timeline:

Spring 2025 - Fall 2025

Project Updates:

May 20, 2025: 

April 15, 2025 – May 15, 2025, Completed Work: The contractor continued to work on pipe repair and pipe replacements throughout the project. They also began cold milling operations on the north end of the project working south. Work began on the turn lane widening at the intersection of Highway 47 and BIA #10. The contractor placed asphalt concrete for the mainline pipe replacement locations and began placing asphalt concrete for spot leveling. Work on the south box culvert began, and the contractor completed removal of the existing pipe and undercut for the new box culvert.  

Anticipated work May 15, 2025 – June 15, 2025: The contractor will continue to work on the pipe repairs and replacements throughout the project. Cold milling operations will continue from north to south. Asphalt concrete paving will begin at the north end of the project working towards the south end of the project. Construction of the new box culvert will continue.  

Project Photos:

STATEWIDE CONSTRUCTION PROJECTS PAGE

PCN: 05UN, 06Q8, 069Q, 06YC