Surveying Details
H5649/56 26.9.56 POSN 522656N, 014532E. (TH NM 60/56). INS AS DW (MAST) WITH G CON BUOY CLOSE ESE. - NM 2437/56. H5649/56 14.4.58 SWEPT CLEAR AT 8FT, FOUL AT 9FT. LEAST E/S DEPTH 12FT IN GEN DEPTH 18FT. NO SCOUR POSN 522656N, 014532E BY HSA. (ECES, 18.9.57). AMEND TO SW 1FM 2 FT. BR STD. H5649/56 27.7.59 SURVEY AFTER DISPERSAL. LEAST DEPTH 16FT [LWST]. GEN DEPTH 18FT. MANY SMALL PIECES OF WRECKAGE SCATTERED AROUND, NONE OF WHICH STAND MORE THAN 1FT OFF THE BOTTOM. BUOY WITHDRAWN. (TH, 10.7.59). AMEND TO WK 2FMS 4FT. DELETE BUOY. - NM 1706/59. H1410/61 31.1.63 NO TRACE FOUND. (HMS ECHO, 1962). H1810/65 29.7.65 NOT FOUND. (ISS, 1965). H2351/65 3.1.67 NOT FOUND. (HMS EGERIA, 1966). DELETED. - NM ACTION. H2098/74 19.11.74 LOCATED IN 522656N, 014331N USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 4.0 IN GEN DEPTH 5.4MTRS. SCOUR DEPTH 5.7MTRS. (ISS, HI 10/74). INS WK 4MTRS. BR STD. H2098/74 29.1.76 POSITION CONFIRMED. LEAST E/S DEPTH 4.4 [LAT]. (HMS ECHO, 30.9.75). H4658/71 29.11.77 NOT FOUND USING DCS3. (HMS ENTERPRISE, 25.10.77). H2098/74 19.12.78 NOT FOUND. POSSIBLY ENCROACHED BY LOWESTOFT BANK. (HMS ENTERPRISE, HI 64A/78). DELETED. BR STD. H2098/74 10.10.79 EXAM'D 25.6.79 IN 522654.8N, 014533E [OGB] USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 4.3 IN GEN DEPTH 5.5MTRS. NO SCOUR. LIES ALMOST COMPLETELY BURIED GIVING VERY POOR SONAR RETURNS. (HMS EGERIA, HI 63A/79). RECHART USING LEAST DEPTH OBTAINED IN 1974. - NM 2544/79. H1960/79 29.10.80 EXAM'D 15.9.80 IN 522654.6N, 014532.4E [OGB] USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 3.6 IN GEN DEPTH 5.5MTRS. DCS3 HT 1.5MTRS. ALMOST COMPLETELY BURIED GIVING POOR SONAR CONTACT. NO SCOUR. (HMS ECHO, HI 62A/80). AMEND TO WK 3.6MTRS. BR STD. H1958/80 8.1.82 CLOSE SOUNDED ONLY, IN 522655N, 014534E [OGB] . LEAST E/S DEPTH 3.6 IN GEN DEPTH 5MTRS, SCOUR 5.8MTRS. SMALL BROKEN UP CONTACT SCATTERED OVER AREA OF APPROX 15MTR RADIUS. (HMS ECHO, HI 28). NCA. H2041/81 4.10.82 EXAM'D 3.6.82 IN 522656N, 014531E [OGB] USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 3.6 IN GEN DEPTH 5.5MTRS. NO SCOUR. CONSISTS OF NUMBER OF PIECES OF WRECKAGE LYING WITHIN AREA 60 X 30MTRS. THE NORTHERN PIECE IS SHOALEST. NOT DETECTED BY SONAR. SHOALER SANDBANK 1 CABLE TO THE E. (HMS EGERIA, HI 85). NCA. H2910/83 25.6.84 EXAM'D 28.3.84. CLOSE AGREEMENT WITH PREVIOUS FIX DETAILS. LEAST E/S DEPTH 5 IN GEN DEPTH 5.4MTRS. NO SCOUR. A SMALL, WELL BROKEN UP CONTACT THAT WAS NOT DETECTED BY SONAR. RETAIN CHARTED DEPTH. (HMS ENTERPRISE, HI 189). NCA. H4023/86 14.9.87 NOT LOCATED. (NP 1016, HI 372). NCA. H3932/88 4.7.89 LOCATED, NOT EXAM'D. (NP 1016, HI 454). HH090/489/01 16.8.90 LOCATED BY MAGNETOMETER ONLY. APPEARS TO HAVE BEEN COVERED OVER. RETAIN AS CHARTED. (NP 1016, HI 489). NCA. HH090/514/01 26.6.91 LOCATED BY MAGNETOMETER ONLY. GEN DEPTH NOW 2MTRS. (NP 1016, HI 514). AMEND TO FOUL. - NM 2060/91. HH090/546/01 8.7.92 LOCATED MAGNETOMETER ONLY. (NP 1016, HI 546). NCA. HH090/571/01 10.8.93 NOT EXAM'D. (NP 1016, HI 571). NCA. HH090/624/01 26.5.94 NOT LOCATED. (NP 1016, HI 624). NCA. HH090/663/01 5.7.95 LOCATED BY MAGNETOMETER ONLY. (NP 1016, HI 663). NCA. HH090/688/01 25.4.96 LOCATED BY MAGNETOMETER ONLY. (NP 1016, HI 688). NCA. HH090/735/01 6.5.97 LOCATED, NOT EXAMINED. (NP 1016, HI 735). NCA. HH090/767/01 30.6.98 LIES IN AREA NOT ISONIFIED. (NP 1016, HI 767). NCA. HH090/849/01 9.6.99 LOCATED BY MAGNETOMETER ONLY. GEN DEPTH 3MTRS. (NP 1016, HI 8489). AMENDED TO ABEY. BR STD. HH090/884/01 12.4.00 LOCATED BY MAGNETOMETER ONLY. (NP 1016, HI 884). NCA. HH090/941/01 11.6.01 NOT LOCATED. GEN DEPTH 3MTRS. (NP 1016, HI 941). NCA. HH090/999/01 10.5.02 NOT LOCATED. (NP 1016, HI 999). AMENDED DEAD. NCA. HH091/021/01 12.5.03 NOT LOCATED. (NP 1016, HI 1021). NCA. RSDRA2024000328456 9.7.25 NOT LOCATED IN M/B DATASET (2024). NOW BURIED. (CLINTON MARINE SURVEY, HI1860 DTD 2024). AMEND BURIED.