Traffic on I-75 between Hamilton Place and the state line is at a crawl from wrecks and high volume.
The southbound left lane is blocked at exit 4-A, Hamilton Place Boulevard. Another southbound wreck is blocking the shoulder at mile marker 1, and the traffic volume is contributing to the slowdown, according to the Tennessee Department of Transportation.
Motorists are advised to slow down and use extra care in the crush.
Heavy traffic also has been reported on Interstate 24 west of Chattanooga.