  H10827--OPR-F344-WH-98;  DURING MAINSCHEME HYDROGRAPHY A SIGNIFICANT SIDE SCAN SONAR CONTACT (3773.3P) WAS FOUND.  DIVERS INVESTIGATED THE CONTACT AND FOUND A STEEL BARGE MEASURING 60'X30'X10' RESTING UPRIGHT IN SURROUNDING DEPTHS OF 50 FEET.  THE BARG