Shotline Diving

Connecting You to the Depths of the Great Lakes

Record LS1775/40

Explore the submerged wreck LS1775/40 in Lake Ontario, a navigational hazard with a mysterious history.

Shotline Diving Wreck Profile

  • Name: LS1775/40
  • Type: Likely a sunken barge
  • Year Built:
  • Builder:
  • Dimensions: Length X ft (Y m); Beam; Depth of hold
  • Registered Tonnage:
  • Depth at Wreck Site: 1.83 m / 6 ft
  • Location: Lake Ontario
  • Coordinates: LAT 43° 02′ 57″ N, LONG 79° 00′ 07″ W

Wreck Location Map

Vessel Type

Vessel Type: Likely a sunken barge based on hydrographic survey observations.

Description

Structure:

  • Wooden beams detected beneath the mud layer.
  • Soft mud filling much of the surrounding area.
  • Visibility: Not visible to the naked eye during surveys but clearly detected on the fathogram.

History

Charting and Surveys:

  • The wreck was originally identified and charted with the designation “LS1775/40.”
  • A 1980 Hydrographic Survey (H9889/80) confirmed the presence of the wreck through fathometer readings and pole soundings.
  • Despite slight variations in depth findings, the charted depth of 5 feet over the wreck was not disproven.

Significant Incidents

  • The Marine Safety Manual (MSM) in September 1988 retained the wreck on nautical charts, with the note: “DEPTH OVER WRECK 5 FT.”
  • This designation ensures that mariners are alerted to the hazard.

Final Disposition

The wreck’s shallow depth makes it a navigational hazard, and its charted presence underscores the importance of hydrographic surveys in maintaining maritime safety. Although its identity is uncertain, its structural characteristics suggest it may have been a barge used in nearby trade or industrial activities.

Current Condition & Accessibility

Visibility: The wreck is not visible at the surface but can be detected using sonar or other hydrographic survey tools.

Access: The shallow depth (5–6 feet) makes this site hazardous for navigation, especially for smaller vessels operating near the wreck.

Condition: Likely a wooden barge that has become embedded in soft mud over time.

Resources & Links

[shotline_reference_links slug=”record-ls1775-40″ title=”References & Links” show_ref_button=”yes”]

The wreck identified as LS1775/40 remains an intriguing feature of Lake Ontario’s underwater landscape. While its shallow depth poses a navigational challenge, its preservation on nautical charts ensures ongoing awareness and maritime safety in the region.

Legacy Notes & Full Historical Record

This section preserves the original unedited Shotline content for this wreck so that no historical detail is lost as we transition to the new logbook format.

SHIPWRECK REPORT: LS1775/40 (Unidentified Barge)

IDENTIFICATION & SITE INFORMATION

  • Name: LS1775/40
  • Type: Likely a sunken barge
  • Location: Lake Ontario
  • Coordinates:
    • Charted Position: LAT 43° 02′ 57″ N, LONG 79° 00′ 07″ W
    • Hydrographic Survey Position: LAT 43° 02′ 57.1″ N, LONG 79° 00′ 06.5″ W
  • Depth:
    • Charted Depth: 5 feet over the wreck
    • Hydrographic Survey (H9889/80): Least depth recorded as 6 feet, though pole soundings indicated slightly deeper depths.
  • Surrounding Conditions:
    • The wreck is embedded in soft mud with hard spots, believed to be wooden beams.

WRECK DESCRIPTION

Type: Submerged wreck, likely a barge based on hydrographic survey observations.

Structure:

  • Wooden beams detected beneath the mud layer.
  • Soft mud filling much of the surrounding area.
  • Visibility: Not visible to the naked eye during surveys but clearly detected on the fathogram.

HISTORY AND SURVEY INFORMATION

Charting and Surveys:

  • The wreck was originally identified and charted with the designation “LS1775/40.”
  • A 1980 Hydrographic Survey (H9889/80) confirmed the presence of the wreck through fathometer readings and pole soundings.
  • Despite slight variations in depth findings, the charted depth of 5 feet over the wreck was not disproven.

Recommendations:

  • The Marine Safety Manual (MSM) in September 1988 retained the wreck on nautical charts, with the note: “DEPTH OVER WRECK 5 FT.”
  • This designation ensures that mariners are alerted to the hazard.

CURRENT CONDITION

  • Visibility: The wreck is not visible at the surface but can be detected using sonar or other hydrographic survey tools.
  • Access: The shallow depth (5–6 feet) makes this site hazardous for navigation, especially for smaller vessels operating near the wreck.
  • Condition: Likely a wooden barge that has become embedded in soft mud over time.

SIGNIFICANCE

The wreck’s shallow depth makes it a navigational hazard, and its charted presence underscores the importance of hydrographic surveys in maintaining maritime safety. Although its identity is uncertain, its structural characteristics suggest it may have been a barge used in nearby trade or industrial activities.

RECOMMENDATIONS FOR MARINERS

  • Navigation: Exercise caution when operating near the wreck’s charted location, particularly in shallow-draft vessels.
  • Dive Considerations: Due to the soft mud and shallow depth, this site is not suitable for recreational diving.

REFERENCES

  • Marine Safety Manual (MSM), September 1988
  • Hydrographic Survey H9889/80

CONCLUSION

The wreck identified as LS1775/40 remains an intriguing feature of Lake Ontario’s underwater landscape. While its shallow depth poses a navigational challenge, its preservation on nautical charts ensures ongoing awareness and maritime safety in the region.

KEYWORDS

#Shipwreck #LS1775/40 #LakeOntario #HydrographicSurvey #MaritimeSafety #NavigationalHazard

record-ls1775-40 1980-03-14 07:49:00