Southbound U.S. Highway 75 was shut down overnight in McKinney after a tractor-trailer crashed and burned. The accident happened about 10 p.m. when one of the big rig’s wheels blew out and it crashed into a guardrail near Wilmeth Road. The collision cracked the semi’s saddle tank and sparked a fire that reduced the 18-wheeler to slag, our colleagues at KXAS-TV (NBC5) report. The truck’s driver managed to escape, and no injuries were reported. Traffic was routed onto the southbound frontage road, but authorities expected to reopen the main lanes before the morning rush is over.