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:
Sept. 18, 2025:
Aug. 15 – Sept. 15, 2025, Completed Work:
The contractor completed grading and salvage placement from Peg Mucky Run Exception to 466th Avenue. Rough grading was finished from the SD 15 junction to 475th Avenue east of I-29. Seeding and mulching were completed west of I-29 to 469th Avenue. Permanent fence installation is mostly complete west of I-29.
Anticipated Work Sept. 15 – Oct. 15, 2025:
The contractor will complete the half-mile of grading from 466th Avenue to Estelline, which has been delayed due to wet conditions. Grading will continue east of I-29, with about 2.5 miles remaining. Salvage gravel will be placed on completed sections of grade.
Temporary surface treatment will be applied on about four miles of grade west of I-29 in the coming days. Seeding and mulching will resume in the remaining areas west of I-29 once conditions are dry enough. Additional temporary surface treatment is expected to be placed on completed grade sections, weather permitting.
Project Photos:
Project Contract Amount:
$10.4 Million
Project Contacts:
SDDOT:Bryce Olson
605-881-7149
605-882-5166
STATEWIDE CONSTRUCTION PROJECTS PAGE
PCN: 04HM
