Shotline Diving

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Henley Island Cluster (3 Wrecks), Martindale Pond, St. Catharines, ON

Explore the submerged remnants of the Henley Island Cluster, believed to be canal utility hulls, now partially buried beneath landfill in Martindale Pond.

Shotline Diving Wreck Profile

  • Name: Henley Island Cluster
  • Type: Unconfirmed, believed barges or large canal utility hulls
  • Year Built:
  • Builder: Unknown; likely retired canal assets
  • Dimensions: 50-55 m (164-180 ft); Unknown; Unknown
  • Registered Tonnage:
  • Location: Southwest Martindale Pond near Henley Island shoreline
  • Coordinates: 43.193527, -79.270953
  • Original Owners: Unknown
  • Number of Masts: Not visible

Wreck Location Map

Vessel Type

Unconfirmed, believed to be timber canal barges or service scows.

Description

This site consists of three distinct wrecks, visible in historic aerial photographs and pond drainage documentation. Two of the wrecks are now believed to be buried beneath the expanded landfill of Henley Island.

History

The site may represent a deliberate scuttling ground for obsolete vessels after the Third Canal fell out of use. As the pond transitioned to recreational use, vessels were often left in situ or buried to reinforce shorelines. Aerial photographs from 1955 and 1965 confirm the presence of three large hulls, each approximately 50-55 meters in length, making this one of the largest composite sites in Martindale Pond.

Significant Incidents

  • No casualties recorded.

Final Disposition

The vessels were likely abandoned pre-1955, possibly scuttled and later buried by landfill and shoreline reclamation. Currently, one wreck may be accessible, while two are considered fully buried. The site is non-divable unless sediment shifts or excavation occurs.

Current Condition & Accessibility

The remaining visible outline of the wrecks is likely submerged under silt just off the southern edge of Henley Island. Future drone or magnetic surveys may help outline the third visible hull.

Resources & Links

[shotline_reference_links slug=”henley-island-cluster-3-wrecks-martindale-pond-st-catharines-on” title=”References & Links”]

These vessels represent some of the largest and oldest known wrecks in Martindale Pond. Documentation, maps, or family history regarding the Henley Island development or barge work in the 1940s-50s would be valuable for further research.

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.

  • Wreck 5 – Henley Island Cluster (3 Wrecks), Martindale Pond, St. Catharines, ON
  • Coordinates: 43.193527, -79.270953
  • Depth Range: Unknown (believed shallow, buried)
  • Estimated Lengths: 50–55 m (164–180 ft)
  • Casualties: None recorded
  • Site Location: Southwest Martindale Pond near Henley Island shoreline

Shotline Diving Wreck Profile

  • Wreck Names: Henley Island Cluster
  • Other References: “Wreck 5 – Triple Barge Cluster”
  • Vessel Types: Unconfirmed, believed barges or large canal utility hulls
  • Site Context: Three distinct wrecks were visible in historic aerials and pond drainage photos; two now lie beneath expanded Henley Island landfill
  • Access: Remaining visible outline likely submerged under silt just off the southern edge of the island

Photo Verification:
1955 aerial: All three visible
1965 drainage photo: One still exposed, two obscured under developing landmass

CONSTRUCTION & OWNERSHIP

  • Build Type: Presumed timber canal barges or service scows
  • Estimated Dimensions: 50–55 m (164–180 ft)
  • Material: Likely heavy timber construction; canal-standard flat-bottomed hulls
  • Builder/Owner: Unknown; vessels likely retired canal assets repurposed or scuttled

PROPULSION

  • Power: Unknown; presumed unpowered canal transport or dredging barges
  • Engine/Masts: Not visible in imagery or drainage documentation

HISTORICAL CONTEXT

This site, now partially buried beneath Henley Island’s infill, may represent a deliberate barge scuttling ground used post-canal service. As the Third Canal fell out of use and the pond’s recreational transformation began, obsolete vessels were frequently left in situ or buried to reinforce shorelines.

The 1955 and 1965 photographs confirm the presence of three large hulls — each approximately 50–55 meters in length — making this one of the largest composite sites in Martindale Pond. Two of the three are now assumed to be completely buried beneath Henley Island’s modern footprint.

FINAL DISPOSITION

  • Date of Abandonment: Pre-1955
  • How: Likely scuttled and later buried by landfill and shoreline reclamation
  • Condition: One potentially accessible; two considered fully buried
  • Diving Status: Non-divable unless future sediment shift or excavation occurs; drone or magnetic survey may yield outline of third visible hull

REFERENCES & LINKS

Community Callout: These vessels represent some of the largest and oldest known wrecks in the pond. If you have documentation, maps, or family history about the Henley Island development or barge work in the 1940s–50s, we’d love to hear from you.

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