Location
Geophysical survey dimensions and notes
490056 E 5840510 N (UTM31N)
WA ID 70911: Unknown wreck (UKHO 11268) Dimensions: 31.3m x 8.1m x 1.1m
70911 is discreet wreck remains located in the northern section of Area THREE. The remains appear quite diffuse in the sidescan sonar data comprising curvilinear dark reflectors with bright shadows. One side of the hull outline is visible as a diffuse, long and thin curvilinear anomaly. This wreck has a medium-large sized magnetic anomaly associated with it measuring 49nT suggesting ferrous material is present. The wreck remains are visible in the bathymetry data as an elongated mound in area of sand ripples and is orientated approximately southwest by northeast.
Build Type Loss
Construction Dimensions Shipyard Cause
Extent of Survival Unknown Unknown
Unknown Unknown Unknown
An unknown wreck, first detected in 1995 (SeaZone 11268). Survey data indicates the presence of an entire wreck, intact and upright, with small areas of minor debris surrounding the wreck; however it appears to be partially buried by mobile sands and located in a highly uneven area of the seabed. The wreck is orientated NNE-SSW and has dimensions of 35m x 5m x 1.4m. A significant magnetometer deflection has been associated with this wreck.
2°40'0"E F 70911 2°50'0"E 3°0'0"E 0 1:500 Sidescan sonar image of wreck 31.3m x 8.1m x 1.1m Multibeam bathymetry image looking northwest x1 vertical exaggeration 20m -35.75
Area
East Anglia THREE
F Depth
Metres LAT (lowest
astronomical tide) -34.00
Datum: WGS84 Projection: UTM31N
Legend
East Anglia THREE offshore windfarm East Anglia THREE Offshore Cable Corridor Wreck1
Notes: © ESRI 2°40'0"E 2°50'0"E
C B
Rev A
12/05/14 KL 22/04/14 KL
28/02/14 KL Date
Third issue
Second Issue First Issue
By Comment 1. Chapter 17, Table 17.15 and Appendix 17.3, Tables 1.2.1 and 1.2.2. 3°0'0"E
Original A3 Plot Scale
1:250,000 (map) © East Anglia Offshore Wind Limited 2014. 0 3 6km 0 2
4nm East Anglia Offshore Wind Unknown wreck (UKHO 11268)
Date Rev
Drg No EA3-650-525W-023-C C
Layout
12/05/2014 N/A
Figure 17.23
Magnetic profile of wreck 49nT Distance along profile
52°30'0"N
52°40'0"N
Mag field (nT)
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