If you are taking Interstate 40 westbound into Memphis crossing over the Mississippi River into Arkansas, expect to be re-routed.

All lanes on the Hernando Desoto Bridge were closed yesterday until further notice after an inspection found a significant crack that requires immediate repair. It is unknown when the bridge will reopen. Drivers can use the Interstate 55 bridge to cross the river.

The Tennessee Department of Transportation released the following statement:

“TDOT contract crews will begin emergency repairs on the I-40 Hernando DeSoto Bridge over the Mississippi River after a routine inspection uncovered the crack in the bottom side of the bridge truss. For the motoring public’s safety, the bridge will be entirely shut down while crews investigate the crack’s extent further and then repair the problem, which could take some time.”