12th Street Bridge Reduced to One Lane Starting June 1

Published on May 29, 2026

Traffic on the West 12th Street bridge near Grange Avenue will be reduced to one lane in each direction beginning Monday, June 1, as crews launch phase two of the 12th Street Bridge Preservation project. The lane reductions are expected to remain in place for two to three weeks, weather permitting.

Crews will close the inside eastbound and westbound lanes, as well as the center turn lane. Traffic will be shifted to the outside lanes in both directions.

“We appreciate the public’s patience as crews complete this important maintenance work,” said Brad Ludens, principal engineer for the City of Sioux Falls. “This project will help extend the life of the bridge so it can continue serving the traffic needs of the city far into the future.”

Phase two includes concrete bridge deck repairs on the inside lanes, application of a two-coat polymer chip seal, replacement of deteriorated strip seal joints at both ends of the bridge and installation of permanent pavement markings.

Access to nearby properties and businesses will be maintained throughout construction. Drivers are encouraged to use alternate routes when possible and allow extra travel time.

Phase one of the project included concrete bridge deck repairs on the outside lanes, repairs to deteriorated surface finishes on barrier curbs, tree trimming, chain-link fence replacement and repairs to a retaining wall coping panel at the southeast corner of the bridge.

The work is necessary to maintain the long-term condition and safety of the structure. The project cost is approximately $431,000.

Drivers should use caution when traveling through the work area and watch for workers and equipment.

Construction is expected to be completed by the end of June. For more information on this project, visit siouxfalls.gov/street-construction.