Ronald Eugene Graybeal, 50, of Newport, Tennessee is charged with one count of felony death by vehicle, two counts of misdemeanor death by vehicle, DWI, and possession of methadone, marijuana, and drug paraphernalia.
He appeared in court Tuesday for an initial appearance on the felony charge. His bond was initially set at $500,000, but Tuesday it was increased to $600,000.
Graybeal was expected to return to court Wednesday for an initial appearance on the remaining charges.
Troopers say Graybeal was driving his big rig on I-40 West just west of the U.S. 15-501 exit in Durham about 4 p.m. Thursday when he failed to react to slowing traffic and plowed into three smaller vehicles - killing the drivers of all three.
Graybeal was not injured.