  H10804/98-99--OPR-K171-KR;  AN OBSTRUCTION WAS FOUND DURING HYDROGRAPHIC SURVEY OPERATIONS (INVOLVING SIDE SCAN SONAR AND MULTIBEAM SOUNDING) IN LAT. 29/28/12.31N, LONG. 093/39/55.49W (NAD83) WITH A SHOALEST SOUNDING OF 32 FEET (MLLW).

  S-K613-WH-0