S.D. Highway 28 East of Estelline to S.D. Highway 15

Project Summary:

The project will replace and upgrade all drainage structures leading to improved drainage. The project will be fully regraded cutting hills and filling valleys leading to improved sight distance. The project will include adding shoulder width to the segment.    

• Drainage Upgrades
• Grading
• Shoulder Widening

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Project Timeline:

April 2025 - Nov. 2025

Detour Map:

Project Updates:

May 20, 2025: 

April 15, 2025 – May 15, 2025, Completed Work: The contractor has completed salvage removal and grading is underway west of I-29. Pipe placement has been completed 269th Avenue to 270th Avenue and is underway from 270th Avenue to I-29. The box culvert two miles west of I-29 has been completed and fully backfilled. Box culvert work is currently underway east of I-29. 

Anticipated work May 15, 2025 – June 15, 2025: Grading work between 269th Avenue and 271st Avenue should be completed by the end of June. Grading work will then proceed east toward I-29. Box culvert work east of I-29 is expected to complete in June. Precast box culvert work east of I-29 is tentatively planned for late June or early July. 

STATEWIDE CONSTRUCTION PROJECTS PAGE

PCN: 04HM