The Illinois Department of Transportation plans to close more than 11 miles of eastbound Interstate 270 from Illinois 3 to the Interstate 55/70/270 interchange near Troy beginning on Friday, the agency said. Weather permitting, pavement repairs are planned along the highway.
The closure is planned from 9 p.m. Friday to 5 a.m. Monday, IDOT said.
IDOT plans to use a 24-mile detour by having traffic travel on northbound Illinois 3 to eastbound New Poag Road to southbound Interstate 255 to eastbound I-55/70 near Collinsville to access eastbound Interstate 70. Eastbound I-270 traffic will not be able to travel east of Illinois 3.
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Travelers and heavy trucks intending to use eastbound I-270 to bypass downtown St. Louis should remain on eastbound I-70 through downtown St. Louis to I-55/70 in East St. Louis to avoid delays, IDOT said.