DRIVING 45 -50 MPH IN THUNDERSTROM, VEHICLE SKIDDED, APPLIED BRAKES, BRAKES LOCKED, SKIDDED OFF OF ROAD OVER A CULVERT IN A CONSTRUCTION AREA, VEHICLE ROLLED SEVERAL TIMES AND LANDED WITH IMPACT ON DRIVER'S SIDE FRONT END. FRONT END CRUSHED, DRIVER SIDE CRUSHED, CAB CRUSHED, CONSOLE CRUSHED, ETC. FRONT END OF DRIVER'S SIDE CRUSHED ALMOST FLUSH WITH PAVEMENT. DRIVER'S SIDE AIRBAG DID NOT DEPLOY.*AK