From KYTC: We have a report of a crash blocking the eastbound lanes of Interstate 24 near the 33 mile marker on the Cumberland River Bridge.  The bridge is at the Livingston-Lyon County Line.This is a single vehicle crash.  At this time, I-24 eastbound traffic is backed up about 4 miles at the crash site.Estimated duration is 2 hours or approximately 4:45 p.m., CST.