PIERRE, S.D. – On Thursday, Oct. 22nd, from 5:30 p.m. to approximately 9 p.m., the traffic signals at the intersection of U.S. Highway 14 (Sioux Avenue) and S.D. Highway 1889 (Pierre Street) will be temporarily turned off while a new traffic signal cabinet is installed.
While the signals are inactive, east/west traffic on Sioux Avenue will continue through the intersection without needing to stop.
Southbound commuters utilizing Pierre Street or Highway 1889 will be detoured onto Pleasant Drive, access to Sioux Avenue from Pierre Street will not be allowed.
Commuters should proceed through the work zone at low speeds and be attentive for construction workers and equipment. Minimal delay is anticipated.
The prime contractor on this $26.4 million project is Morris Inc. of Fort Pierre, SD. The overall completion date for this multi-year project is Friday, Nov. 20, 2026.






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