S.D. Highway 50 and S.D. Highway 37 - Tyndall

Project Summary:

S.D. Highway 50, S.D. Highway 50 East and West - From West of S.D. Highway 37 South Junction to East of Tyndall

• Intersection Reconstruction
• Urban Reconstruction
• Grading

Project Timeline:

Fall 2026 - Fall 2027

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Project Updates:

The S.D. Highway 50 reconstruction project, from the west end of the S.D. Highway 37 South divided highway section west of Tyndall, east to the east end of the divided highway section on the east side of Tyndall was originally scheduled to begin during the 2025 construction season.  At this time, the reconstruction project has been postponed to the 2026 construction season. 

Each year, the SDDOT places planned projects into the STIP (Statewide Transportation Improvement Program). The STIP is a four-year program listing projects developed through the coordinated efforts of the Department of Transportation, Transportation Commission, state and federal agencies, local and tribal governments, metropolitan planning organizations, public agencies, transportation providers, citizens and other interested parties. The program identifies highway and intermodal improvements to preserve, renovate, and enhance South Dakota's transportation system. 

As the SDDOT works on multi-year projects, contractors’ schedules, and budget considerations; projects may be postponed to the following construction season. The SDDOT does not anticipate any work to be done of the Highway 50 project during the 2025 season. If any pre-construction prep work does begin this fall, it will be minor and will not affect traffic.

STATEWIDE CONSTRUCTION PROJECTS PAGE

PCN: 04K7