Plan Ahead For Overnight Detours On I-90 This Weekend

More traffic flow adjustments await drivers on Interstate 90 near Sioux Falls this weekend.

One project down

Starting today (Thursday), traffic will be shifted onto the new pavement and bridge on Western Avenue over I-90 in Hartford (Exit 387), marking the completion of phase one of construction. Two lanes of traffic will remain open on the new pavement on Western Avenue with a 10-foot width restriction in place. A temporary westbound off-ramp will be utilized during construction of the permanent off-ramp.

One project to go

Phase two construction will begin immediately and includes building the second half of the bridge and Western Avenue. Work will continue through the fall and winter as weather allows.

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In addition, overnight closures are scheduled to take place on I-90 for bridge removal work:

From 8:00 PM Friday (October 17) to 6:00 AM Saturday (October 18), eastbound I-90 traffic will be diverted around the closure via the on-ramp and off-ramp at Exit 387.
From 8:00 PM Saturday to 6:00 AM Sunday, traffic will be two-way, and the westbound off-ramp will be closed. Traffic should use the westbound off-ramp at Exit 390.

The $12.6 million project is expected to be completed in June 2026.

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