VEHICLE WAS GOING 15-20 MPH WHILE CROSSING A BRIDGE. FRONT PASSENGER'S SIDE CONTROL ARM BROKE IN HALF WITHOUT WARNING, CAUSING VEHICLE TO CRASH INTO STEEL SUPER STRUCTURE OF BRIDGE. VEHICLE DIDN'T HIT ANYTHING PRIOR TO THE CRASH, AND VEHICLE LOST COMPLETE STEERING. DEALER WAS NOTIFIED. *AK MANUFACTURER NOTIFIED. REAR DRIVE ASSEMBLIES ALSO HAD TO BE REPLACED. DEALER HAS ATTEMPTED TO REPAIR THREE TIMES. *TT