
Traffic Changes Coming To I-90 Near Sioux Falls This Week
Late-night and early morning drivers on Interstate 90 near Sioux Falls will encounter two traffic disruptions this week.
According to the South Dakota Department of Transportation, the eastbound lanes of Interstate 90 at Exit 387 (Hartford) will be temporarily closed from 8:00 PM on Wednesday (December 17) to 6:00 AM on Thursday (December 18) to allow crews to set bridge girders over the eastbound lanes. During this overnight closure, eastbound I-90 traffic will be diverted using the Exit 387 off- and on-ramps before returning to the Interstate.
READ MORE: South Dakota Ramps Up Sobriety Checkpoints This December
The same traffic diversion for westbound I-90 will occur from 8:00 PM Friday (December 19) to 6:00 AM on Saturday (December 20) for bridge girder placement over the westbound lanes. During this overnight closure, westbound I-90 traffic will be diverted using the Exit 387 off- and on-ramps before returning to the Interstate.
Western Avenue (County Highway 151) will remain open during both overnight operations. Traffic on Western Avenue will be guided through the work zone by flaggers.
The overall completion date for the $12.6 million project is June 2026.

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