Marie Leonhardt (Probably) Wreck

Field Value
Wreck Category dangerous wreck
Marie leonhardt (probably) Wreck Location
Marine Coordinates (DMM) 		51 50.661 N,1 37.329 E
Latitude, Longitude
Decimal Degrees
  • Latitude: 51.844350
  • Longitude: 1.622150
Wreck Depth 15.04 m
Water Depth 16 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Name MARIE LEONHARDT (PROBABLY)
Type steam ship
Flag GB
Length 76.5 m
Width 11.3 m
Draught 4.9
Sonar Length 40.41
Sonar Width 6.78
Shadow Height 1.4
Orientation 305
Tonnage 1466
Tonnage Type gross
Cargo coal
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk Feb 14, 1917
Bottom Texture Sand
Original Detection Year 1917
Last Detection Year 2022
Original Source published World War 1 losses
Surveying Details SANK 2.25M E 0.5 N FROM SUNK LTV. (WW1SL). H6611/32 20.9.32 BEING DISPERSED. (TH, NM 45/32). H2047/33 27.3.33 NOTED FROM SWIRL. DRIFT SWEPT 5.7.32 - FOUL AT 41FT, CLEAR AT 39FT. GEN DEPTH IN VICINITY 61FT. (HMS KELLETT, SWEEP REPORT 1932). INS AS WK 6.5FMS. - NM ACTION. H1334/60 & H2047/33 5.5.60 EXAM'D USING HSA. SWEPT CLEAR AT 46FT, FOUL AT 47FT. LEAST E/S DEPTH 51 IN GEN DEPTH 60FT. SCOUR 68FT. (ECES, 11.11.59). H2134/70 26.2.70 EXAM'D 31.7.69 IN 515038N, 013726E [OGB] USING HIFIX.3 [2 LOP]. SWEPT CLEAR 13.9MTRS, FOUL 14.3MTRS. LEAST E/S DEPTH 15.2 IN GEN DEPTH 17.5 TO 18MTRS. SCOUR DEPTH 20.6MTRS. (HMS EGERIA, HI 1/69). AMEND TO WK 7FMS 4FT. - NM 1087/60. H2047/33 8.11.60 FURTHER AMENDMENT IN POSN. (ERROR IN ROS). - NM 3047/60. H2134/70 27.2.70 AMEND TO SW 7FMS 3FT. (DATUM CHANGE TO LAT). NE 1975. 9.1.73 AMEND TO SW 13.9MTRS. NC 1975. H3180/74 22.9.75 NOT LOCATED. (HMS ENTERPRISE, HI 11/75). NCA. H1954/80 22.3.82 EXAM'D 4.11.81 IN 515038N, 013727E [OGB] USING HIFIX/6 [2 LOP]. SWEPT CLEAR AT 13.9, FOUL AT 14.0MTRS. LEAST E/S DEPTH 16.1 IN GEN DEPTH 18MTRS. NO DCS3 SHADOW. LENGTH 100MTRS, BREADTH 30MTRS. LIES 120/300 DEGS. (SOISS, HI 24). NCA. H2912/83 12.10.84 LOCATED, NOT EXAMINED. (SOISS, HI 191). NCA. H4024/86 12.2.88 EXAM'D 21.8.87 IN 515038N, 013726E [OGB] USING TRISPONDER [4 LOP]. SWEPT CLEAR AT 14.4, FOUL AT 14.8MTRS. LEAST E/S DEPTH 14.9 IN GEN DEPTH 18.5MTRS. DCS3 HT 3.7MTRS, LENGTH 80MTRS, WIDTH 14MTRS. LYING IN ONE PIECE AND VIRTUALLY BURIED IN SEABED. ORIENTATED 115/295 DEG. MAG ANOMALY INDICATES MAX OF SOME 1780 TONNES IRON CONTENT. (NP 1016, HI 373). AMEND TO SW 14.4MTRS. - NM 768/88. H3933/88 19.9.89 LOCATED, NOT EXAMINED. (NP 1016, HI 455). NCA. HH090/494/01 22.8.90 EXAM'D 29.6.90 IN 515037N, 013727E [OGB] USING TRISPONDER [7 LOP]. LEAST E/S DEPTH 15.4 IN GEN DEPTH 18MTRS. SCOUR DEPTH 20MTRS. NO DISTINCT DCS3 SHADOW OBTAINED. SONAR LENGTH 90MTRS, BEAM 20MTRS. LIES 120/300 DEG, PARTIALLY BURIED IN AREA OF SANDWAVES. LARGE MAG. ANOMALY OBSERVED. (NP 1016, HI 494). NCA. HH090/573/01 30.9.93 LOCATED, NOT EXAMINED. GEN DEPTH NOW 16.3MTRS. STRONG MAGNETIC ANOMALY. (NP 1016, HI 573). HH090/690/01 20.5.96 LOCATED, NOT EXAMINED. (NP 1016, HI 690). HH090/724/01 19.5.97 EXAM'D 23.4.97 IN 515037.1N, 013727.1E [OGD] USING DGPS. SWEPT CLEAR 14.3, FOUL 14.6MTRS. LEAST E/S DEPTH 15.4 IN GEN DEPTH 17.5MTRS. SCOUR DEPTH 0.5MTR. DCS3 HT 3MTRS. LENGTH 50MTRS, WIDTH 25MTRS. LIES 160/340 DEGS. LARGE MAGNETIC ANOMALY. AN AREA OF BROKEN DEBRIS, PARTIALLY BURIED BY DEPOSITION. (NP 1016, HI 742). BR STD. HH090/768/01 3.7.98 LOCATED, NOT EXAMINED. (NP 1016, HI 768). NCA. HH090/851/01 6.7.99 LOCATED, NOT EXAMINED. (NP 1016, HI 851). NCA. HH090/886/01 24.5.00 LOCATED BY MAGNETOMETER ONLY. (NP 1016, HI 886). NCA. HH090/885/01 2.6.00 LOCATED BY MAGNETOMETER ONLY. (NP 1016, HI 885). NCA. HH090/935/01 7.6.01 LOCATED BY MAGNETOMETER ONLY. (NP 1016, HI 935). NCA. HH090/936/01 20.6.01 LOCATED BY DCS3 AND MAGNETOMETER. (NP 1016, HI 936). NCA. HH090/993/01 1.7.02 NOT LOCATED BY DCS3, E/S OR MAGNETOMETER. GEN DEPTH 17MTRS. (NP 1016, HI 993). AMEND TO FOUL. BR STD. HH091/023/01 2.6.03 EXAM'D 22.3.03 IN 5151.083N, 0137.809E [WGD] USING DGPS. LEAST E/S DEPTH 17.5 IN GEN DEPTH 18MTRS. NO SCOUR. STRONG MAGNETIC ANOMALY. SMALL AREA OF DEBRIS. (NP 1016, HI 1023). COODINATE CONVERSION INCORRECT. POSN IS 5150.650N, 0137.320E [WGD]. CHARTED GEN DEPTH IS 15MTRS. RETAIN AS FOUL IN REVISED POSN. BR STD. HH091/116/01 15.12.05 EXAM'D 4.7.05 IN 5150.650N, 0137.339E [WGD] USING DGPS. LEAST M/B DEPTH 15.25 IN GEN DEPTH 16MTRS. SCOUR 1MTR DEEP. LENGTH 35MTRS, WIDTH 20MTRS, HT 0.75MTR. LIES 110/290 DEGS. STRONG MAGNETIC ANOMALY. APPEARS TO BE COVERED BY A SANDWAVE. RETAIN AS FOUL. (NP 1016, HI 1116). RETAIN AS FOUL IN REVISED POSN. BR STD. HH091/165/01 26.3.07 EXAM'D 24.6.06 IN 5150.661N, 0137.323E [WGD] USING DGPS. LEAST M/B DEPTH 15.10 IN GEN DEPTH 16MTRS. COVERS AN AREA 40MTRS BY 24MTRS, HT 0.9MTR, ORIENTATED 150/230 DEGS. NO APPARENT EVIDENCE OF WRECK OR DEBRIS, ALTHOUGH IT MAY BE BURIED BENEATH A SANDWAVE. (NETSURVEY, HI 1165). AMEND FOUL 15.1MTRS IN REVISED POSN. BR STD. HH091/262/01 5.2.09 LOCATED, NOT EXAM'D. (MARIN MATTEKNIK, HI 1262). NCA. SEP 2009/000043963 8.6.09 LEAST DEPTH NOW 14.5MTRS. (DIGITAL BATHY DATA FOR HI 1264, VIA RT1B). AMEND WK 14.5MTRS. BR STD. 11.11.10 EXAM'D 8.2010 IN 5150.661N, 0137.330E [WGD] USING DGPS. LEAST M/B DEPTH 15.39 IN GEN DEPTH 17.5MTRS. NO SCOUR. LENGTH 57MTRS, WIDTH 26MTRS, HT 2.1MTRS. NO APPARENT EVIDENCE OF A WK OR DEBRIS, APPEARS TO BE BURIED BENEATH SANDWAVE. (MMT, HI 1339). NCA. 27.2.13 EXAM'D 13.10.12 IN 5150.659N, 0137.328E [WGD]. LEAST M/B DEPTH 15.12 IN GEN DEPTH 18MTRS. NO SCOUR. LENGTH 63MTRS, WIDTH 14.2MTRS, HT 2.4MTRS. LIES 120/300 DEGS. STRONG MAGNETIC ANOMALY. PARTIALLY BURIED BY ADJACENT SANDWAVE. (NETSURVEY, HI 1398). INTACT, COLLAPSED, ?BOWS WNW. NCA. SEP 2014/000153152 13.10.14 LOCATED 2014 IN 5150.661N, 0137.330E [WGD]. LEAST M/B DEPTH 15.5MTRS. (EGS, HI 1459). NCA. SEP 2016/000181430 7.3.17 EXAM'D 14.08.16; IN 5150.661N, 0137.330E [WGD]. LEAST M/B DEPTH 15.1MTRS IN GEN DEPTH 17MTRS, LENGTH 47.71MTRS, WIDTH 19MTRS, HEIGHT 1.3MTRS, ORIENTATION 125/305 DEGS. MAJORITY OF WRECK IS BURIED. (EGS, HI 1522, RRS TE2A). AMEND WK 15.1MTRS. SEP2019/000280195 29.11.2019 EXAM'D 10.09.19; IN 5150.660N, 0137.329E [WGD]. LEAST M/B DEPTH 15.2MTRS IN GEN DEPTH 16MTRS, LENGTH 45.77MTRS, WIDTH 15.71MTRS, HEIGHT 1.44MTRS, ORIENTATION 124/304 DEGS. REMAINS OF A LARGE WRECK WITH NUMEROUS FEATURES STANDING PROUD OF THE MAIN BODY OF THE WRECK. WRECK ORIENTATED WITH SANDWAVES AND PARTIALLY COVERED BY A SANDWAVE ON SW SIDE. (MCA, H525 HI1641). AMEND WK 15.2MTRS IN REVISED POSN. SEP 2022/000210614 27.09.2022 EXAM'D 09.06.2022 IN 5150.661N, 0137.329E [WGD]. LEAST M/B DEPTH 15.040000000000001MTRS IN GEN DEPTH 16MTRS. LENGTH 40.410000000000004MTRS, WIDTH 6.78MTRS, HEIGHT 1.4MTRS, ORIENTATION 305/125 DEGS. PARTIALLY COVERED BY SANDWAVE. (A-2-SEA SOLUTIONS LTD, HI 1763 TE3A). RSDRA2025000337797 09.07.2025 LOCATED IN M/B DATASET 2025. LEAST M/B DEPTH 15.24MTRS. DEEPER THAN CHARTED. NFS. (NJORD SURVEY AB, HI1896, DTD 28.05.2025). RETAIN DW 15MTRS.
Last Amended Date Jul 10, 2025

Circumstances of loss

BUILT IN 1902 BY SCHIFFSWERFT H KOCK. OWNED AT TIME OF LOSS BY THE ADMIRALTY (EVERETT & NEWBIGGIN). TRIPLE EXPANSION ENGINE OF 129NHP FOR 9 KNOTS. PASSAGE HARTLEPOOL FOR LONDON. CARGO COAL. MINED. FIVE MEN LOST.

General Comments

PARTIALLY COVERED BY SANDWAVE

WRECK MAP LOADING ... 51 50.661 N,1 37.329 E
Marie Leonhardt (Probably) on Wreck Map Marie Leonhardt (Probably) Wreck on Google Map

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FAQ

Where is the MARIE LEONHARDT (PROBABLY) wreck located?

The MARIE LEONHARDT (PROBABLY) wreck is located at coordinates 51 50.661 N,1 37.329 E.

How deep is the MARIE LEONHARDT (PROBABLY) and where exactly is it located?

The MARIE LEONHARDT (PROBABLY) lies at a depth of about 15.04 meters and is located at coordinates 51 50.661 N,1 37.329 E.

How deep is the seabed around the MARIE LEONHARDT (PROBABLY)?

The seabed around the MARIE LEONHARDT (PROBABLY) lies at approximately 16 meters deep.

When did the MARIE LEONHARDT (PROBABLY) sink?

The MARIE LEONHARDT (PROBABLY) sank on Feb 14, 1917.

When was the wreck of the MARIE LEONHARDT (PROBABLY) discovered?

The wreck of the MARIE LEONHARDT (PROBABLY) was discovered in 1917.

What country did the MARIE LEONHARDT (PROBABLY) belong to?

The MARIE LEONHARDT (PROBABLY) belonged to GB.

What cargo was the MARIE LEONHARDT (PROBABLY) carrying?

The MARIE LEONHARDT (PROBABLY) was carrying coal.

What was the tonnage of the MARIE LEONHARDT (PROBABLY)?

The MARIE LEONHARDT (PROBABLY) had a tonnage of 1466 tons.

What type of wreck is the MARIE LEONHARDT (PROBABLY)?

The MARIE LEONHARDT (PROBABLY) is classified as a steam ship.

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