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Location


Geophysical survey dimensions and notes


4444987 E, 5793299 N (UTM30N)


WA ID 76951: Unknown wreck Dimensions: 14m x 2.8m x 2.7m


Triangular area of large diffuse dark reflectors with a distinct shadow identified as a wreck on a seabed dominated by small sand waves. No discernible internal reflectors are visible. A clear elongated mound orientated east - west is visible on the multibeam bathymetry with a perpendicular extension to the south and a small depression to the north of the wreck. A very large associated magnetic contact of 1424nT indicates that a significant amount of ferrous is present. This suggests a possible steel hull and/or ferrous content. No UKHO wreck or obstruction is recorded at this location.


Area


East Anglia THREE


F Build Type Loss


Construction Dimensions Shipyard Cause


Extent of Survival Unknown Unknown but very large magnetic response suggests a steel hull.


Unknown Unknown Unknown


No discernable internal reflectors are visible suggesting little internal structure remains. However, a distinct height of 1.5m has been recorded and therefore suggests that a significant external structure is remnant. A very large associated magnetic contact agrees with this suggestion. The wreck lies within an area with high sediment content which could possibly bury internal features.


1°30'0"E Legend


East Anglia THREE offshore windfarm East Anglia THREE Offshore Cable Corridor Wreck1


Notes: 1. Chapter 17, Table 17.15 and Appendix 17.3, Tables 1.2.1 and 1.2.2. 2°00'0"E 2°30'0"E 3°0'0"E F 76951


Datum: WGS84 Projection: UTM31N


0 1:500 Sidescan sonar image of wreck 15m x 11.5m x 1.5m SW Multibeam bathymetry image facing northwest with 6 height exaggeration NE 20m -39.00 Depth


Metres LAT (lowest


astronomical tide) -33.75


Distance along profile © ESRI 1°30'0"E 2°0'0"E


C B


Rev A


2°30'0"E


12/05/14 KL 22/04/14 KL


28/02/14 KL Date


Third issue


Second Issue First Issue


By Comment 3°0'0"E


Original A3 Plot Scale


1:800,000 (map) © East Anglia Offshore Wind Limited 2014. 0 7.5 15km 0 5 10nm


East Anglia Offshore Wind Unknown wreck (WA ID 76951)


Date Rev


Drg No EA3-650-525W-028-C C


Layout


12/05/2014 N/A


Figure 17.28


Magnetic profile of wreck 1424nT


52°00'0"N


52°30'0"N


Mag field (nT)


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