The bridge, which crosses a Claylick Creek, is between Frances Road and View Road in the southwest quadrant of the county.
Crittenden County Judge-Executive Perry Newcom said this morning that the bridge could be closed for several months before proper repairs can be made.
Mexico Road turns into Sisco Chapel Road, also known as SR 2132, near where the bridge is out. The road serves local traffic, commuters and agriculture vehicles.
