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Motorists on Interstate 90 in Austin will be detoured each night June 16-19 from 8 p.m. to 6 a.m., while construction crews place deck work over the highway at Fourth Street Northwest, according to the Minnesota Department of Transportation.

According to a Wednesday release, I-90 detours will start at 8 p.m. each night and end the next morning by 6 a.m., so the highway is open during the daytime hours. This schedule runs from the evening of June 16 through the morning of June 20.

The deck work for the Austin I-90 bridges project prepares the bridge for crews to pour the concrete bridge deck next month.

This is year two of a three-year $50 million construction project at six sites in Austin. The new bridge will open to traffic at 4th Street Northwest by late fall. Other bridge construction is planned for 2026.

During the daily overnight closures, motorists will be detoured from 8 p.m. to 6 a.m.:

• Eastbound I-90 traffic will be slowed to travel up and down the off- and on-ramps at Fourth Street Northwest.
• Westbound I-90 traffic will be detoured off I-90 at Highway 218 south (Exit 180 B) on the east side of Austin. Travel south on Highway 218 to Mower County Road 28 west to Highway 105 north where it will reconnect with I-90 on the west side of Austin at the Highway 105/Oakland Avenue bridge. Westbound traffic will be able reach Austin destinations by using exits at:
  • Oakland Place Northeast (Exit 180 A)
  • 11th Drive Northeast (Exit 179)
  • Sixth Street Northeast (178B) – No traffic will be allowed past this exit during the nightly closures.