An overturned tractor trailer has traffic snarled this morning.  Westbound lanes of 240 at Walnut Grove COMPLETELY BLOCKED.  Use an alternate route at least thru 8am.

TDOT Traffic Cameras

8:10am UPDATE:  Apparently overturned trucks on the interstate are contagious.  It's happened again.  This time on I-40 Eastbound just East of Highway 64:

Avoid the area until at least 9:30am