Inslope Repair Project Scheduled to Begin on S.D. Highway 89 in Custer Area

For Immediate Release:
Wednesday, June 25, 2025

Contact:
Jay Noem, Project Manager, 605-673-4948

CUSTER, S.D. – On Monday, June 30, 2025, an inslope repair project is scheduled to begin on S.D. Highway 89 in the Custer area near Sylvan Lake. Temporary stop signals and flaggers will be used to guide travelers through the work zone. Motorists should expect delays. The inslope repair project on Highway 89 is expected be complete by Friday, Aug. 1, 2025.  

The prime contractor for this $195,000 project is Mainline Contracting, Inc. of Rapid City, SD. The overall project completion date is Friday, Oct. 31, 2025.

About SDDOT:
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For the latest on road and weather conditions, road closures, construction work zones, commercial vehicle restrictions, and traffic incidents, please visit https://sd511.org or dial 511.

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