Mont Louis Wreck

Field Value
Wreck Category dangerous wreck
Mont louis Wreck Location
Marine Coordinates (DMM) 		51 21.567 N,2 55.771 E
Latitude, Longitude
Decimal Degrees
  • Latitude: 51.359450
  • Longitude: 2.929517
Wreck Depth 13.9 m
Water Depth 15 m
Water Level Effect always under water/submerged
Vertical Datum Lowest Astronomical Tide
Name MONT LOUIS
Type roll on-roll off
Flag FR
Length 135 m
Width 9.4 m
Draught 6.7
Orientation 45
Tonnage 4210
Tonnage Type gross
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk Aug 25, 1984
Original Detection Year 1984
Last Detection Year 2025
Original Source Lloyd's and Marine Underwriter's reports
Surveying Details H4489/76 4.9.84 IN POSN 512136.7N, 025551.8E, LYING ON STBD SIDE, HEADING SW. PORT SIDE OF VESSEL SHOWS ABOVE W/L. N.CARD LTBY 'OOSTENDE BK' MOVED TO 512145N, 025550E TO MARK WK. SALVAGE OF CONTAINERS IN PROGRESS. (BELGIUM HYD TLX 30.8.84 & DOVER CG). WK COMPLETELY COVERED AT HW. (LL 3.9.84). NCA YET. H4489/76 7.9.84 WK NOW SUBMERGED AT LOW WATER AND STARTING TO BREAK UP. (LL 6.9.84). H4489/76 10.9.84 VESSEL STARTING TO BREAK UP AND LEAK OIL. (LL 8.9.84). INS AS ST IN 512137N, 025552E. - NM 2498(P)/84. H4489/76 27.9.84 WK VISIBLE 3MTRS ABOVE MLLWS. (OSTENDE NM 112(T)84). COVERED BY P NOTICE. VESSEL BROKEN IN 2 PIECES & GALES PREVENTING SALVAGE. FLOATING PLATFORMS & CRANES MOVED TO HELP PROTECT WK AS WELL AS SALVAGE CARGO. (LL, 13.9.84). H4489/76 2.10.84 WK VISIBLE APPROX 3.5MTRS ABOVE LLWS. N CARD BUOY OOSTENDEBANK MOVED TO 512145N, 025550E. S CARD BUOY FL(6+1)15S IN 512118N, 025554E. (OOSTENDE NM 114(T)/84). H4489/76 15.10.84 ALL CONTAINERS OF URANIUM HEXAFLUORIDE HAVE BEEN SALVAGED. FURTHER WORK TO BE UNDERTAKEN. (LL 5.10.84). WK HAS SHIFTED AND IS NOW IN A MORE UPRIGHT POSITION. (LL 11.10.84). WK TO BE ABANDONED BY OWNERS. (TELECON 15.10.84 WITH THEIR LONDON SOLICITORS). H4489/76 6.11.84 SALVAGE OF HEXAFLUORIDE COMPLETED. PART OF WRECK SHOWS AT LW. BUOYAGE REMAINS AS IN BELGIUM NM 114(T)/84. (COASTAL HYD SERVICE, OSTEND, TLX 5.11.84). INS ST & MOVE OOSTENDEBANK N BUOY, Q, TO 512145N, 025550E. ALSO INS S CARD, Q(6)+LFL15S, IN 512118N, 025554E. - NM 3099/84. H4489/76 3.12.84 BUOYAGE AMENDED IN NETH NM 699(P)/84 - OOSTENDE N.BANK NOW IN 512124N, 025548E, S CARD IN 512128N, 025545E, & A NEW E CARD, Q(3)10S IN 512133N, 025604E. AMEND POSN OF OOSTENDE N BANK BUOY TO 512124N, 025548E, S CARD POSN TO 512128N, 025545E, AN E CARD BUOY Q(3)10S ESTD 300MTRS E IN 512133N, 025604E. - NM 3366/84. H4489/76 29.4.85 CONTRACT FOR SALVAGE OF WK TO BE SIGNED IN MAY. (LL 16.4.85). 1.7.85 SALVAGE OPS TO COMMENCE IN JULY AND LAST UNTIL SPRING 1986. (LL, 28.6.85). H4489/76 1.8.85 SALVAGE OPS COMMENCED 16.7.85. (LL, 17.7.85 & OOSTENDRADIO WARNING 84/85). H4489/76 16.10.85 WK RAISED AND TOWED TO ZEEBRUGGE ON 29.9.85. (LL, 1.10.85). NCA YET. H4489/76 9.1.86 VESSEL HAS BEEN ONLY PARTIALLY SALVAGED. BUOY POSNS: OOSTENDEBANK N 512154N, 025554E, Q; S CARD 512128N, 025547E, Q(6)+LFL15S; E CARD 512132N, 025600E, Q(3)10S. (OSTEND TELEX 19.12.85 & BELGIUM NM 141/85). NCA YET. H4489/76 12.1.87 WRECKAGE NOW SWEPT CLEAR AT 14MTRS. OOSTENDEBANK N BUOY MOVED TO 512115N, 025300E. OTHER BUOYS WITHDRAWN. (OSTEND RO NAV WARNING 507/86 & TELEX 9.1.87). AMEND TO SW 14MTRS. DELETE S & E CARD BUOYS. AMEND POSN OF OOSTENDEBANK N BUOY TO 512115N, 025300E. - NM 273/87. SEP 2010/000138707 17.9.10 SHOWN AS SW 13.9MTRS [LAT] IN 5121.567N, 0255.771E [WGD] ON BELGIAN 102 [NE DTD 6.10, 1:60,000].
Last Amended Date Sep 29, 2025

Circumstances of loss

BUILT IN 1972 BY OY WARTSILA AB, TURKU. OWNED AT TIME OF LOSS BY CAMPAGNIE GENERALE D'ARMAMENTS MARITIMES. PASSAGE DUNKIRK FOR RIGA. SANK FOLLOWING COLLISION WITH M RO-RO M FERRY OLAU BRITANNIA. VESSLES REMAINED LOCKED AFTER COLLISION, WHEN OLAU WAS PULLED CLEAR BY TUGS, MONT LOUIS SANK AT ONCE. CARGO INCLUDED 30 CONTAINERS OF URANIUM HEXAFLUORIDE, ALL OF WHICH WERE RECOVERED. WAS CARRYING 935 BRITISH, GERMAN & DUTCH PASSENGERS. NONE LOST. (MSD).

WRECK MAP LOADING ... 51 21.567 N,2 55.771 E
Mont Louis on Wreck Map Mont Louis Wreck on Google Map

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FAQ

Where is the MONT LOUIS wreck located?

The MONT LOUIS wreck is located at coordinates 51 21.567 N,2 55.771 E.

How deep is the MONT LOUIS and where exactly is it located?

The MONT LOUIS lies at a depth of about 13.9 meters and is located at coordinates 51 21.567 N,2 55.771 E.

How deep is the seabed around the MONT LOUIS?

The seabed around the MONT LOUIS lies at approximately 15 meters deep.

When did the MONT LOUIS sink?

The MONT LOUIS sank on Aug 25, 1984.

When was the wreck of the MONT LOUIS discovered?

The wreck of the MONT LOUIS was discovered in 1984.

What country did the MONT LOUIS belong to?

The MONT LOUIS belonged to FR.

What was the tonnage of the MONT LOUIS?

The MONT LOUIS had a tonnage of 4210 tons.

What type of wreck is the MONT LOUIS?

The MONT LOUIS is classified as a roll on-roll off.

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