Unknown Wreck 114418

General Comments

HISTORY LNM14/75--WOODEN DRYDOCK AT POS.41-09-30N, 72-45W, IN 90 FT., BUOY EST. LNM16/75--BUOY EST. AT WK. COVERED BY 43 FT AT POS.41-09-21N, 72-41-37W LNM33/77--CHANGE POS. FROM 41-09-21N, 72-41-57W TO 41-09-17.5N, 72-44-58.5W, COVERED 42 FT (MLW); LIGHTED BUOY DISCONTINUED RU/HE MAR--9/10/82, 9/30/82--FOUND BY SIDE SCAN. DIVERS ATTEMPTED LEAST DEPTH DETERMINATION BUT PREVENTED DUE TO POOR VISIBILITY. WIRE DRAG HUNG AT 49 FT CLEARED TO 45.5 FT; POS. 41-09-21.98N, 72-44-58.01W FE241WD/82--OPR-B660-RU/HE-82; ITEM 7; WK FOUND DURING INVESTIGATION IN LAT 41-09-21.98N, LONG 72-44-58.01W; POSITIONED BY SSS ANALYSIS AND WIRE DRAG HANG; DIVER INVESTIGATION CONDUCTED BUT WAS UNSUCCESSFUL IN OBTAINING LEAST DEPTH OR POSITION; EVALUATOR RECOMMENDED CHARTING 42 FT WIRE DRAG CLEARANCE IN SURVEY POSITION. (UPDATED MSM 9/89) F00469/00-- OPR-B317-RU; ITEM LOCATED BY SIDE SCAN SONAR. LD OF 62 FEET OBTAINED BY SWMB SONAR IN LAT. 41-09-22.33N, LONG. 72-44-55.91W. DIVER LD NOT POSSIBLE DUE POOR VIS. EVALUATOR RECOMMENDS DELETING CHARTED 42-FOOT CLEARED DEPTH AND CHARTING A 62WK AS SURVEYED. (UP 2/23/01, SJV) H12479/2012; NOS -- Submerged non-dangerous wreck was detected using RESON 7125 object detection multibeam. Data Reduced to MLLW using verified water level and finalized TCARI grid. Wreck dimensions approximately 39m long by 29m wide and 69 ft deep. DESCRIPTION **** OBSTRUCTION, COE, 4/2/75; LOCATED WK BY ECHO SNDR. W/43 FT LD (PLOTTING SHEET ONLY) **** OBSTRUCTION SURVEY REPORT, NAVAL UNDERWATER SYSTEMS CENTER, MAY 1977; LOCATED WK BY SIDE SCAN SONAR AND LORAN C CONTROL AT POS.9930 Z 69720.1, 9930 Y 50280.7; DIVERS VERIFY EXISTENCE AND DESCRIBE WK AS INTACT WITH MANY LARGE TIMBERS PROTRUDING FROM BREAKS IN THE HULL BUT APPARENTLY STABLE AND NOT SUSCEPTIBLE TO RAPID BREAKUP; TOP OF WK WAS 42 FT INSIDE FLOOR WAS 70 FT AND GENERAL DEPTHS ARE APPROX. 85 FT OVER A FEATURELESS BOTTOM COMPOSED OF FINE SAND AND SILT, VISIBILITY WAS LIMITED TO 1-2 FT.