Around 1100 hrs Upper Saucon Fire and EMS are dispatched to the intersection of Route 309 and Center Valley Parkway for an accident with rescue. Crews arrive to find one tractor trailer crashed into the side of another with the driver heavily entrapped. Additional rescue companies are requested including the Lehigh County Special Ops team to assist with extrication. 4 different heavy rescue companies go in service with tools and air bag systems to free the driver. At one point the trailer of one truck is lifted off the other, a trauma team from Lehigh Valley Hospital is requested to the scene for immediate trauma treatment of the trapped driver. Around 3 hours after the initial crash crews finally extricate the driver and he is transported to a local trauma center with critical injuries. The roadway is shut down for several hours for cleanup and investigation..