Part of Interstate 40 is currently closed temporarily in both directions due to emergency maintenance on the Hernando de Soto bridge over the Mississippi River, the Arkansas Department of Transportation said Tuesday.
The I-40 bridge connects West Memphis and Memphis, Tenn.
Traffic was being rerouted to the Interstate 55 bridge over the river, about three miles south of the I-40 span.
Arkansas Department of Transportation spokesman Dave Parker said the I-40 bridge would be closed at least through Tuesday night.
A routine inspection of the bridge revealed a "crack that requires further investigation," Department of Transportation officials said in a tweet.
The agency is working with the Tennessee Department of Transportation to ensure the bridge is safe before reopening to motorists, the tweet read.
Parker said the bridge had passed its last inspection in September.
Arkansas drivers headed east on I-40 should take Exit 5 to I-55 to cross the Mississippi River into Memphis, the Department of Transportation said in a news release.
Tennessee drivers headed west on I-40 should take the I-55 bridge across the Mississippi River to cross into Arkansas, then take Exit 4 to access I-40 westbound.
Updates may be monitored at IDriveArkansas.com.
The Associated Press contributed to this report.