Traffic Alert! Interstate 90 Lane Closures and Diversions Coming
Get ready for some new traffic challenges on Interstate 90 in eastern South Dakota.
Starting Tuesday (August 27) at 7:00 PM, the South Dakota Department of Transportation will temporarily close eastbound and westbound lanes on Interstate 90 and divert traffic through the on and off-ramps at Exit 406 at Brandon, so that crews can set bridge girders.
This traffic diversion will be in effect until 7:00 AM, Wednesday (August 28).
Lane closures and traffic diversions are also planned from 7:00 PM, Wednesday until 7:00 AM, Thursday (August 29) to install components to build the bridge deck.
Traffic on South Dakota Highway 11 will be maintained during both overnight traffic diversions.
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This project includes the reconstruction of Exit 406 (Brandon) with added lighting, signals, and mainline Interstate work. This project also includes three structure replacements.
The interchange will be reconstructed as a Diverging Diamond Interchange (DDI). Westbound I-90 lanes (along with the railroad structure on I-90) will be reconstructed in 2024 and the eastbound lanes in 2025. T
The interchange itself and the new structure over I-90 will be reconstructed between the 2024 and 2025 construction seasons.
The $41.3 million project is expected to be completed by June of 2026.
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