Simplified Wreck Survey
UK Hydrographic Office wreck survey details for the potential underwater shipwreck Yucca, located off the East Coast of England in the North Sea near the UK coastline. Wreck position coordinates: 52 26.221 N, 1 47.51 E. Historical hydrographic surveys conducted by Royal Navy vessels including HMS Egeria, HMS Echo, and HMS Enterprise between 1968 and 2016 document the structural dimensions and condition of the seabed obstruction. The intact hull remains upright, oriented at a 135/315 degree heading, with a measured length of 60.8 meters, width of 11.5 meters, and a height of 7.8 meters. Multibeam echo sounder surveys record a least depth of 13.99 meters in a general surrounding water depth of 20 meters, featuring a surrounding seabed scour measuring 110 meters long and 2.3 meters deep. Sonar contacts confirm a distinct structural outline of the complete hull and fittings with a small magnetic deflection.
Surveying Details
H3198/18 7.6.18 REPORTED TO HAVE BEEN 'BLOWN TO BITS'. (AUTHORITY NOT STATED). H7688/68 30.9.69 WK IN 522612N, 014730E USING HSA. LEAST E/S DEPTH 17.0 IN GEN DEPTH 19-20MTRS. SCOUR DEPTH 21MTRS. IRREGULAR SMALL PIECE OF WKGE RUN OVER WHILST SOUNDING. NOT SATISFACTORILY RELOCATED ON SUBSEQUENT SEARCH. NO SONAR CONTACT OBTAINED. NEEDS TO BE SWEPT. (HMS EGERIA, H525 59/69, 30.9.69). CHART AS WK 9FMS 2FT. - NM 1921/69. H7688/68 26.11.70 EXAM'D 16.6.70 IN 522611N, 014739E USING HSA. LEAST E/S DEPTH 15.7 IN GEN DEPTH 19-20MTRS. SCOUR DEPTH 21MTRS. SEABED FLAT. (HMS ECHO, HI 7B/70). AMEND TO WK 8FMS 3FT IN REVISED POSN. - NM 45/71. 31.7.74 NOW CHARTED AS WK 15.2MTRS [LAT]. NC 1543. H2098/74 26.1.76 LOCATED IN 562612N, 014737E USING HIFIX [2 LOP] & HSA. LEAST E/S DEPTH 14.0 IN GEN DEPTH 19MTRS. NO SCOUR. (HMS ECHO, HI 15/75). AMEND TO WK 14MTRS [7FMS 4FT] IN REVISED POSN. - NM 310/76. H4658/71 29.11.77 LOCATED IN 522612N, 014738E USING HIFIX/6 [2 LOP]. NOT CLOSELY EXAMINED. (HMS ENTERPRISE, R-OF-S 25.10.77). NCA. H2098/74 19.12.78 EXAM'D 6.9.78 IN 522612N, 014737E USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 14.4 IN GEN DEPTH 18-19MTRS. SCOUR DEPTH 20.8MTRS. LIES NW/SE. DCS3 HT 2.2MTRS, LENGTH ABT 125FT. GOOD ALL ROUND SONAR CONTACT FROM RANGES UP TO 100MTRS. (HMS ENTERPRISE, HI 64A/78). SHOWN AS WK 14.2MTRS ON FAIR SHEET!. NCA. H2098/74 10.10.79 LOCATED 21.6.79 IN 522611N, 014737.4E USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 14.6 IN GEN DEPTH 19-21MTRS. DCS3 HT 2MTRS [POOR SHADOW]. LYING 130/310DEGS. LENGTH 55MTRS. SCOUR, 2MTRS DEEP, RUNS 030DEGS FROM WK. (HMS EGERIA, HI 63A/79). APPEARS TOO LONG TO BE THE 'YUCCA'!. RETAIN AS CHARTED. H1960/79 30.10.80 EXAM'D 11.9.80 IN 522612N, 014737.2E USING HIFIX/6 [2 LOP]. SWEPT CLEAR AT 13.4, FOUL AT 13.7MTRS. LEAST E/S DEPTH 14.1 IN GEN DEPTH 20MTRS. SCOUR 2MTRS DEEP. DCS3 HT 5MTRS. LYING 135/315DEGS, LENGTH 50MTRS. GOOD SONAR CONTACT SHOWING DISTINCT OUTLINE OF COMPLETE HULL AND SOME FITTINGS. (HMS ECHO, HI 62A/80). AMEND TO SW 13.4MTRS. BR STD. H3932/88 4.7.89 FOUND DURING AREA SONAR SEARCH. NOT EXAM'D. (NP 1016, HI 454). NCA. HH090/546/01 8.7.92 EXAM'D 21.5.92 IN 522611.9N, 014737.9E [OGB] USING 3-RANGE TRISPONDER. SWEPT CLEAR AT 14.0, FOUL AT 14.3MTRS. LEAST E/S DEPTH 14.2 IN GEN DEPTH 20MTRS. SCOUR 1.9MTRS DEEP. DCS3 HT 3.7MTRS, LENGTH APPROX 60MTRS. LIES 140/320DEGS. UPRIGHT GIVING A GOOD SONAR RESPONSE. SMALL MAGNETIC DEFLECTION NOTED. (NP 1016, HI 546). AMEND TO SW 14MTRS IN 522612N, 013738E [OGB]. BR STD.HH090/664/01 5.7.95 LOCATED, NOT EXAMINED. (NP 1016, HI 664). NCA. SEP 2016/000091758 24.7.17 EXAM'D 17.12.16 IN 5226.221N, 0147.510E [WGD]. LEAST M/B DEPTH 13.99MTRS IN GEN DEPTH 20MTRS, LENGTH 60.8MTRS, WIDTH 11.5MTRS, HEIGHT 7.8MTRS, ORIENTATION 135/315 DEGS. SCOUR LENGTH 110MTRS, 2.3MTRS DEEP, TOWARDS 020 DEGS. (GARDLINE, HI 1494). AMEND DW 13.9MTRS IN REVISED POSN.