Unknown Wreck 116788

General Comments

Wreck removed from the chart sometime after 1998. No information found as to why wreck was removed. (LAH 7/29/2013) LNM16/70--3-18-70, 11TH CGD; A WRECK COVERED BY 55FT OF WATER AND MARKED BY AN UNLIGHTED GREEN AND WHITE BUOY EXISTS IN APPROX. 32-37.6N, 117-15.0W. ***CL 952/75, NOS; THIS ITEM WAS INVESTIGATED ON MARCH 12, 1975. INITIAL CONTACT WAS MADE THROUGH THE USE OF SSS USING MINI-RANGER TO CONTROL POSITION. THE DA LAUNCH USED ITS FATHOMETER TO POSITION ITSELF OVER THE WRECK, AND TWO BUOYS WERE DEPLOYED. DIVERS DESCENDED TO THE WRECK AT 100FT. THE WRECK IS ON THE GRADUAL SLOPING BOTTOM AND STICKS UP FROM THE BOTTOM APPROX. 20FT. IT IS A LARGE WRECK (APPROX. 150FT) ENCRUSTED WITH MARINE GROWTH AND IS HARDLY RECOGNIZABLE AS A METAL STRUCTURE. THE MAST WAS REMOVED SOME TIME AGO AND THE REPORTED DEPTH OF 55FT OVER THE WRECK IS NO LONGER VALID. DIVERS POSITIONED THE MARKER BUOY OVER THE LEAST DEPTH IN POS.32 37 38.57N, 117 15 02.88W, COMPARED DEPTH GAUGES AND ASCENDED. A POSITION WAS TAKEN ON THIS BUOY FROM THE LAUNCH USING MINI-RANGER. DEPTH GAUGE LEAST DEPTH WAS CHECKED AGAINST THE FATHOMETER RECORD OVER THE WRECK. THE LEAST DEPTH OVER THE WRECK AT THE TIME OF OBSERVATON WAS 98', WHICH REDUCES TO 93.2' USING PREDICTED TIDES FOR PT. LOMA WITH BROADWAY AS THE REFERENCE STATION. BECAUSE OF THE DEPTH, THIS ITEM IS NOT CONSIDERED A HAZARD. THE CHARTED 55FT REPORTED DEPTH WAS CHANGED TO ITS PRESENT CHARTED DEPTH OF (93) 15FM.