 HISTORY
  H-10598/95--OPR-J343-MI;  SIDE SCAN SONAR AND DIVER INVESTIGATION REVEALED A IRREGULAR CHUNK OF CONCRETE, 11 FT ACROSS, 3 FT OFF THE BOTTOM. LEAST DEPTH WAS 16FT.  EVALUATOR RECOMMENDS  TO NOT CHART, USE SHOALER DEPTHS IN THE IMMEDIATE VICINI