Lowmount Wreck

Surveying Details

H4115/17 SUNK WITH MASTS VISIBLE IN POSN 4 MILES SE FROM NAB LTV. (WW1SL). CHART AS ST (MASTS) IN 503946N, 005024W MARKED BY LT BUOY. - FNM 412/17 & 357/18. H5583/22 31.8.22 DISPERSED. CLEAR TO 36FT [LWST]. (TRINITY HO). AMEND TO WK 6FMS & DELETE BUOY. - NM 1442/22. H5781/23 22.8.23 OBSTN 095DEGS, 3.75 MILES FROM NAB TR IN 503930N, 005130W. (ADMIRAL, PORTSMOUTH, 21.8.23). H5781/23 10.9.23 LOCATED BY DIVER IN 503940N, 005022W. LEAST DEPTH 4.5FMS [MLWS]. (SURVEY [C9193]). AMEND TO WK 4FMS 3FT IN REVISED POSN, MARKED BY LIT CONL BUOY GPFL(3)G 10S. - NM ACTION. H7021/25 21.10.25 DISPERSAL OPS AGAIN IN PROGRESS. - NM 1679(T)/25. H7003/26 28.10.26 LEAST DEPTH NOW 32FT. (AUTHORITY NOT STATED). AMEND TO WK 5.25FMS & DELETE BUOY. H6319/48 5.10.48 AMEND POSN TO 503946N, 005024W. (SCES). - NM 2183/48. H6319/48 14.2.49 INS G SPH BUOY CLOSE W OF WK. (TH). - NM 299/49. H6319/48 5.5.51 EXAM'D APRIL 1951 IN 503946N, 005018W USING HSA. SWEPT CLEAR 26, FOUL 27FT. LEAST E/S DEPTH 33FT. SCOUR 43FT. (SML 325, 11.11.59). AMEND TO WK 5FMS 2FT. BR STD. H6319/48 16.7.52 SWEPT JUNE 1952 IN 503946N, 005024W USING HSA AFTER FURTHER DISPERSAL. SWEPT CLEAR AT 30, FOUL AT 31FT. LEAST E/S DEPTH 33 IN GEN DEPTH 39FT. STANDS 8FT ABOVE SEABED IN A SMALL BUT PRONOUNCED SCOUR 3FT DEEP. ONLY A SMALL PART OF WK IS PROUD OF SEABED AND WAS ONLY FOUND ONCE ON E/S. AREA SWEPT COVERED RADIUS OF 400FT FROM WK. WK BUOY BEARS 091DEGS, 900FT FROM WK. (HMS SHARPSHOOTER, 16.7.52). AMEND TO WK 5FMS. - NM 1512/52. H6319/48 BUOY NOW G CONL INT QKFL G. (TRINITY HOUSE). - NM 978/53. H6319/48 19.1.65 SWEPT CLEAR AT 38FT IN GENERAL DEPTH OF 39FT. (TRINITY HOUSE, 1964). AMEND TO WK 6FMS 2FT & DELETE BUOY. - NM 136/65. WZ 537 & NAVEAM 7823 ISSUED. 16.2.68 ONE PART OF WK STANDS 6FT ABOVE SEABED. (BSAC). H2214/70 23.1.70 NOT LOCATED DESPITE INTENSIVE SEARCH USING TRANSIT AND FISHERMAN'S SONAR. (SCES, ROS DTD 4.3.70). RETAIN AS CHARTED. 29.1.74 NOW CHARTED AS SW 11.5MTRS. NC 2045.NOW CHARTED AS SW 11.1MTRS [LAT]. NC 2045. H2318/74 28.4.76 FOUND BY TRANSIT SONAR IN 1973. LEAST E/S DEPTH 10.7MTRS. GOOD SONAR RESPONSE FROM EASTWARD. (SCES, HI 62/75). AMEND TO WK 10.7MTRS. - NM BLOCK 980/76. H3847/86 21.3.89 AREA EXAM'D 8.12.88 USING TRISPONDER AND DCS3. NOTHING OF SIGNIFICANCE FOUND. RECOMMEND RETAIN AS CHARTED. (HMSML GLEANER, HI 366). NCA. SEP 2019/000094901 19.05.19 EXAM'D 8.4.19 IN 5039.790N, 0050.408W [WGD]. LEAST M/B DEPTH 10.21MTRS IN GEN DEPTH 11MTRS. LENGTH (DEBRIS AREA) 68MTRS, WIDTH (DEBRIS AREA)22MTRS, HEIGHT 1.08MTRS, ORIENTATION 022/202 DEGS. (CLINTON MARINE SURVEY AB, HI 1561). AMEND DW TO 10.2MTRS IN REVISED POSITION.