UPDATED INFORMATION: Temporary Closure Scheduled for Cliff Avenue at Interstate 229 in Sioux Falls

UPDATED INFORMATION as of Jan. 8, 2026:

For Immediate Release: 
Tuesday, Jan. 6, 2026

Contact:
Mike Schmidt, Project Engineer, 605-940-1000

Temporary Closure Scheduled for Cliff Avenue at Interstate 229 in Sioux Falls

SIOUX FALLS, S.D. – On Friday, Jan. 9, 2026, South Cliff Avenue at Interstate 229 will be temporarily closed beginning at 9:30 a.m. as contractors remove a temporary bridge over Cliff Avenue. Weather permitting, the work is expected to be completed in one hour. During the closure, drivers should use exits 3 (Minnesota Avenue) and 5 (East 26th Street) as detour routes.

Flaggers will be present to direct southbound and northbound Cliff Avenue traffic onto the I-229 northbound and southbound on- and off-ramps. Motorists are reminded to use caution and reduce their speed while workers and equipment are present.

The prime contractor for this $48 million project is T&R Contracting, Inc. of Sioux Falls, SD. The overall project completion date is June 2027.

Featured Project Information:
Find additional information about this project on the SDDOT website at https://dot.sd.gov/i229exit4.

Sign Up for Text Notifications: 
For updates on MAJOR traffic changes on this reconstruction project, subscribe to a free text-in service. To subscribe, simply text "I229Exit4" 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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