Freeman Ave. has now been reopened to traffic.
Police say Donald R. Hewitt, 49, of Covington, was operating the truck westbound on Mehring Way. He turned southbound onto Freeman Ave. and lost control of the tractor trailer, causing the vehicle to overturn.
The truck also struck a guardrail.
Hewitt has been charged with failure to control.
An overturned tractor trailer has shut down a local roadway.
The incident happened just before 10 a.m. near Freeman Ave. and Mehring Way. Freeman Ave. between Mehring Way and West Eighth Street is closed.
The truck was carrying 49,000 pounds of coal. Diesel fuel was also spilled.
Crews estimate it will take some time to clean up the mess.
The driver of the truck was not seriously hurt.
FOX19 has a crew on the way and will bring you updates as they become available.