Company 3, along with Company 9 and Station 10, responded to a two vehicle traffic accident at the 34.3 NB of I-81. Upon arrival, found a pickup had hrydoplaned in to the median. A tractor-double trailer then hydroplaned, jack-knifed and overturned on to the pickup. The driver of the pickup self extricated with minor injuries. Hydraulic tools were used to extricate the driver of the tractor-trailer, who was then transported to the ED with minor injuries.