A semitrailer loaded with 41,000 pounds of cheese crashed on E-470 on Monday morning, splitting in half and causing a traffic backup on the toll road.The crash happened about 6:30 a.m. at East 96th Avenue when the truck hit the bridge and veered off the road and into the center median, the Colorado State Patrol said.The driver and a passenger were not injured and the driver was cited for careless driving. The cheese was being transported to Laredo, Texas.