Coaster Wreck 5149

Field Value
Wreck Category dangerous wreck
Wreck Location
Marine Coordinates (DMM) 		53 13.339 N,1 11.988 E
Latitude, Longitude
Decimal Degrees
  • Latitude: 53.222317
  • Longitude: 1.199800
Wreck Depth 23.93 m
Water Depth 31 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Type coaster
Sonar Length 90.2
Sonar Width 17.6
Shadow Height 7.5
Orientation 154
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Original Detection Year 1992
Last Detection Year 2018
Original Source survey vessel
Last Amended Date Sep 6, 2018

Simplified Wreck Survey

Underwater wreck site located in the North Sea off the coast of Norfolk England at coordinates 53 13.339 N 1 11.988 E. This underwater obstruction is identified as the remains of a steel coaster vessel lying in an inverted position on the seabed. Latest hydrographic surveys indicate a least depth of 23.93 meters within a general water depth of approximately 31 meters. The wreck measures 90.2 meters in length with a width of 17.6 meters and a structural height of 7.5 meters. The vessel is oriented on a 154/334 degree axis and sits on a seabed of rippled sand. Historical data suggests the wreck was originally misidentified as a stern trawler before diver inspections confirmed it to be an inverted coaster. The site exhibits minor scouring with dimensions of 3.7 meters in length and 2.3 meters in depth. Positioned in the North Sea, this wreck is charted as a navigational hazard for maritime traffic.

Surveying Details

HH090/565/01 8.12.92 INTACT WK EXAM'D 1.10.92 IN 531319.6N, 011205E [OGB] USING SYLEDIS. LEAST E/S DEPTH 22.3 IN GEN DEPTH 30 TO 33MTRS. SCOUR DEPTH 0.2MTR. DCS3 HT 8.6MTRS, LENGTH 100MTRS, WIDTH 15MTRS. LIES ON STEEP SLOPE OF BANK. SWEEP ATTEMPT ONLY RESULTED IN CLEARANCE OF BANK AT 23.5MTRS, ABOUT 375MTRS NW OF WK. (SEATEAM, HI 565). APPEARS FROM SONAR TRACE TO BE A LARGE STERN TRAWLER. INS AS WK 22MTRS. BR STD. HH090/593/01 17.12.93 EXAM'D 9.8.93 IN 531319.1N, 011205.1E [OGB] USING SYLEDIS [3 LOPS]. LEAST E/S DEPTH 21.8 IN GEN DEPTH 31.6MTRS. NO SCOUR. DCS3 HT 6.4MTRS, LENGTH 109MTRS, BREADTH 18MTRS. INTACT, LYING 155/335 DEG ON RIPPLED SAND. (OCEONICS (UK) LTD., HI 593). BR STD. 13.7.94 EXAMINED BY DIVER & FOUND TO BE WK OF COASTER LYING UPSIDE-DOWN ON SEABED. (FIELDEN, TELECON 13.7.94). NCA. HH242/570/04 4.8.95 INS AS WK 21.5MTRS. - NM 2925/95. SEP 2018/000212985 6.9.18 EXAM'D 25.3.18 IN 5313.339N 0111.988E [WGD]. LEAST M/B DEPTH 23.93MTRS IN GEN DEPTH 31MTRS, LENGTH 90.2MTRS, WIDTH 17.6MTRS, HEIGHT 7.5MTRS, ORIENTATION 154/334 DEGS. SCOUR DIMENSIONS LENGTH 3.7MTRS, 2.3MTRS DEEP, TOWARD 242 DEGS. INTACT AND INVERTED. (GARDLINE, HI 1515). AMEND TO DW 23.5MTRS IN REVISED POSITION.

General Comments

INTACT, INVERTED

WRECK MAP LOADING ... 53 13.339 N,1 11.988 E
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