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Published December 1, 2025 at 7:00 PM
Updated December 2, 2025
Demolition, site work, paving and new construction of a civil project in New Underwood, South Dakota. Conceptual plans call for site work for a road / highway; for paving for a road / highway; for the demolition of a bridge / tunnel; for the construction of a bridge / tunnel; bridge / tunnel; and bridge / tunnel.
I90 E & W - Fm W of Exit 63 (Dusters Corner) to E of West Gate Rd; I90 E & W - Fm W of Exit 63 (Dusters Corner) to E of Exit 67 (Liberty Blvd) Length : 2.1 Route : I90E, I90W, I90WF County : Pennington As of December 01, 2025, the project is in Conceptual status. Anticipated letting Year is 2028. SDDOT - Grading, PCC Surfacing, Interchange Replacement (Exit 63), Replace Str Bridge and RCBC, Intelligent Transportation System (ITS) *Project information has been obtained through a public state transportation improvement plan (STIP). A STIP is a financial schedule for short- and long-range projects which is updated regularly. Information listed in the STIP often evolves based on funding availability. The project details, including timeline and value, are subject to change. The content management team will continue to pursue additional details as they become available.
Conceptual
Roads / Highways
$128,786,000.00
Public - State/Provincial
Demolition, New Construction, Paving, Site Work
Plans and Specifications are not available for this project. If that changes, they will be made available here.
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