  H10835/98-99--OPR-K171-KR;  LOCATED AN OBSTRUCTION BY SIDE SCAN SONAR AND MULTIBEAM ECHOSOUNDER IN LAT. 29/14/29.69N, LONG. 094/30/54.56W (NAD83) WITH A LEAST DEPTH OF 46 FEET MLLW.  (ENTERED 9/01 BY MBH)
 F00592/10-OPR-K380-TJ-10-- Survey coverage do