  H10891/99--OPR-K171-KR;  OBSTRUCTION LOCATED BY SIDE SCAN SONAR AND MULTIBEAM ECHOSOUNDER IN LAT. 29/22/25.48N, LONG. 093/11/26.12W(NAD83) WITH A LEAST DEPTH OF 43.8 FEET (MLLW).  (ENTERED 2/01 BY MBH)