S.D. Highway 10 - Between Britton and Houghton

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Project Summary:

This project consists of widening the shoulder of the roadway to improve safety and will include a structure and pipe replacement. Additionally, the intersection will be modified at the turn lane.

Project Timeline:

Summer 2024 - Spring 2026

Project Updates:

Nov. 21, 2025: 

Expected Work Suspension:
Work is expected to suspend around Nov. 26, 2025, (weather dependent). Approximately 2–3 miles remain to be completed next spring.

Work Remaining:
Remaining work includes grading to Britton, paving at the pipe culvert locations, and completing erosion control measures.

Project Photos:


Project Contract Amount:

$22.9 Million

Project Contacts:

SDDOT: 
Robert Ward
605-626-7885

Contractor: 
Loiseau Construction