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.

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Project Timeline:

Spring 2025 - Spring 2026

Project Updates:

Nov. 24, 2025: 

Oct. 15, 2025 – Nov. 15, 2025 Completed Work: The contractor completed all permanent pavement markings for the projects. In-slope shaping has been finished across all project areas. Permanent seeding, mulching, fertilizing, and delineator installation have been completed north of I-90. Permanent fencing north of I-90 has also been installed.

Anticipated Work Nov. 15, 2025 – Dec. 15, 2025: The contractor will continue permanent seeding, mulching, and fertilizing south of I-90. Delineators and permanent fencing will also be installed south of I-90. Work on these projects is anticipated to be completed by December 5, 2025.

Project Photos:

STATEWIDE CONSTRUCTION PROJECTS PAGE

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