S.D. Highway 25 in Clark County Near Bradley

Sept. 19, 2025:

Aug. 15–Sept. 15, 2025 — Completed work: S.D. Highway 25 remains closed for six miles south, beginning at S.D. Highway 20. The contractor continued grading operations toward the south while installing concrete pipe culverts beneath the roadway. Paving preparations are in the early stages, with topsoil and other finishing work beginning at the northern end of the project.

Sept. 15–Oct. 15, 2025 — Anticipated work: The contractor has moved to the next section of S.D. Highway 25, north of S.D. Highway 20, and will continue grading operations, material hauling, stockpiling and pipe culvert installations. This scope of work is expected to continue through October and beyond, weather permitting, to meet project timelines. Updates will follow as the schedule advances over the next few weeks.

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Sept. 12, 2025: 

On Monday, Sept. 15, 2025, S.D. Highway 25 in Clark County will be closed from S.D. Highway 20 north for three miles. This closure is in place to allow crews to perform grading operations.

A signed car detour will be in place guiding motorists around the work zone utilizing 437th Avenue and 155th Street (County Road 20). Truck traffic is asked to find alternate state routes to detour around the project. 

The current closure on Highway 25 south of Highway 20 for six miles remains in place.