DRIVING APPROXIMATELY 70 MPH AT 7:30AM ON A SATURDAY ON A 4 LANE INTERSTATE. LIGHT RAIN, TRUCK STARTED HYDROPLANING SIDEWAYS, NO TRACTION AT ALL, THEN SUDDEN TRACTION THRUSTING TRUCK INTO GUARDRAIL HEAD ON, BOUNCED BACKWARDS INTO THE MIDDLE LANE, THEN TRACTION AGAIN MOVING TRUCK FORWARD INTO A DITCH, UP THE EMBANKMENT AND HITTING A TREE HEAD ON. TOTAL LOSS OF TRACTION AND BRAKES. AIRBAGS DID NOT DEPLOY. OVER $10,000 IN DAMAGE.