U.S. Highway 16 Corridor
On Tuesday, Aug. 4, 2026, the South Dakota Department of Transportation (SDDOT) will hold an informational meeting at 5 p.m. to share information on the background and phases for the U.S. Highway 16/16B/Catron Boulevard interchange construction project in Rapid City.
The construction information meeting will take place in the event room at Black Hills Energy, located at 7001 Mount Rushmore Rd. in Rapid City.
A pre-recorded presentation will be playing throughout the evening, and project staff will be available to answer questions about construction impacts for commuters and adjacent businesses.
The project area includes the intersection of Highway 16/16B and Catron Interchange and a portion of Promise Road. Construction is anticipated to take place from later this year through late 2032.
Meeting Materials:
November 22, 2022 – Intersection of U.S. Highway 16 & Neck Yoke Road
Nov. 2, 2023 - US16 Corridor Study Sub-Area Analysis (East of Rockerville to west of Neck Yoke Road)
April 4, 2024 – U.S. Highway 16 (Enchantment Road to the Tower Road Overpass)