   H11216/04 -- AN OBSTRUCTION WAS FOUND WITH 200% SIDE SCAN SONAR IN POSITION: 30/ 10' 16.79" N, 081/ 41' 38.78" W [NAD 83]. THE OBSTRUCTION IS A PIPE LAYING FLAT ON THE BOTTOM OF THE RIVER FLOOR APPROXIMATELY 8 METERS LONG EXTENDING 0.33 METERS, (1.08