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Interstate 90 Exit 46 Interchange - Piedmont
Interstate 90 Exit 46 Interchange - Piedmont
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Rapid City Region /
Rapid City Area /
Interstate 90 Exit 46 Interchange - Piedmont
Project Summary:
The project will reconstruct Exit 46, including construction of a new, realigned overpass bridge to replace the existing structure, which has reached the end of its service life.
The new alignment will also carry traffic over the railroad, eliminating the at-grade crossing and improving safety and traffic flow in the area.
Sign Up for Text Notifications:
For updates on MAJOR traffic changes, subscribe to a free text-in service. To subscribe, simply text the keyword listed below to 605-566-4041. Subscribers can unsubscribe at any time.
Text i90exit46 to 605-566-4041
Project Updates:
Coming Soon
Project Photos:
PCN: 034J
Schedule:
- Spring 2026 - Fall 2027
Location:
- Interstate 90 Exit 46 - Piedmont
Benefits:
- Reconstruct Interchange
- Interchange Grading
- Surfacing
Estimated Cost:
- Coming Soon
Contractor:
- Coming Soon
© 2026 State of South Dakota. All Rights Reserved.
South Dakota Department of Transportation
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
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© 2026 State of South Dakota. All Rights Reserved.
South Dakota Department of Transportation
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
Becker-Hansen Building
700 E. Broadway Ave.
Pierre, SD 57501
Powered by:
Modern Logic
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