A NORTH BOUND VESSEL WAS GOING TO THE BRIDGE AND UNIT 1 MOVED IN BEHIND IT. UNIT 1 DID NOT REQUEST THE BRIDGE OPENING AND HAD RESTRICTED VISION FROM THE SUN AND CAMERAS TOP OF THE BOAT AND DID NOT SEE BRIDGE CLOSING WHEN HE DID HE HIT REVERSE BUT THINKING BRIDGE WAS STOPPING AND REOPENING COULDN'T BACK THROUGH AND STRUCK THE BRIDGE.