S.D. Highway 73 - Kadoka to the White River

Project Summary:

S.D. Highway 73 - From South of the White River to Kadoka

• Grading
• Structure Work
• Interim Surfacing
• Lighting

Project Timeline:

March 2025 - June 2026

Project Updates:

July 22, 2025: 

May 15, 2025 – June 15, 2025, Completed Work: Unclassified excavation continued for earthwork balances on the south end of the project. Unclassified excavation also started again north of the White River bridge for earthwork balances. The contractor began cold milling and full depth reclamation north of the White River bridge. Began removing old base course and undercutting north of the White River bridge. Continued the installation of RCP pipe on the north side of the project, bypassing certain areas and doing locations convenient for the contractor. Fence removal and the installation of temporary fence was finished. Waterline pipe installation continued throughout the job. The contractor finished the installation of the new box culvert and removed the diversion from the road.  

Anticipated work June 15, 2025 – July 15, 2025: The contractor plans to continue unclassified excavation on the north side of the White River bridge and the location south of the White River bridge. Cold milling asphalt on the north side of the White River bridge will continue. Continuation of old base course removal and undercut. Plan to set new base course and grading road north of the White River bridge. Planning to complete asphalt paving on bridge ends and transition on south end of the project. Planning to complete waterline installation and begin waterline tie ins (requiring area water shutdown). 

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PCN: 05HV