Traffic Signal Improvement Project Scheduled for Sioux Avenue and Pierre Street Intersection in Pierre

For Immediate Release: 
Thursday, Aug. 27, 2026

Contact: 
Dean VanDeWiele, Pierre Area Engineer, 605-773-5294

PIERRE, S.D. - From 7 a.m. to 5 p.m. on Sunday, Aug.30, 2026, 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.

Traffic Impacts:
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 will only be able to turn right onto Sioux Avenue after stopping at a temporary stop sign.

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.

Featured Project Information:
Find additional information, construction timelines, and project maps on the SDDOT website at https://dot.sd.gov/euclid.

Sign Up for Text Notifications:
For updates on major traffic changes on the Euclid reconstruction project, subscribe to a free text-in service. To subscribe, simply text EUCLID to 605-566-4041. Subscribers can unsubscribe at any time. 

About SDDOT:
The mission of the South Dakota Department of Transportation is to provide a safe and efficient public transportation system.

For the latest on road and weather conditions, road closures, construction work zones, commercial vehicle restrictions, and traffic incidents, please visit https://sd511.org or dial 511.

Read more about the innovative work of the SDDOT at https://dot.sd.gov.

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