SHIPWRECK REPORT: UNKNOWN STEAM LAUNCH AT NIAGARA SHOAL

IDENTIFICATION & SITE INFORMATION

•Wreck Name: Unknown (likely a steam launch)

•Type: Late 19th-century steam-powered vessel

•Location: Niagara Shoal, 44°17.212’N, 76°0.243’W

•Depth: 90 feet (27.4 meters)

•Bothttps://shotlinediving.com/wp-content/uploads/52895851813_b64678c0f7_c.jpg Conditions:

•Steep shoal

•Strong currents

•Wreck rests on a ledge above a slope descending to over 200 feet (61 meters)

VESSEL TYPE DESCRIPTION

The wreck appears to be a 30-foot (9.1-meter) steam launch, typical of the late 19th century. These launches were compact steam-powered vessels used for passenger transport, towing, or small-scale cargo operations. Key features of the wreck include:

•The engine appears to have been removed prior to abandonment.

•The Hull is significantly deteriorated, partially buried under layers of white periwinkle shells.

The vessel’s small size and utilitarian design suggest it may have been used locally or regionally for short trips rather than extensive voyages.

HISTORY

This wreck was discovered by Dennis McCarthy in 1993 during a non-contact survey of the nearby wreck of the Iroquoise conducted by the St. Lawrence Historical Foundation. Its proximity to the Iroquoise and its position just inside the U.S. side of the shipping channel suggest it may have been a secondary vessel associated with larger operations or local maritime activity.

The exact identity and circumstances of the steam launch’s sinking remain unknown. The absence of the engine may indicate that the vessel was deliberately Abandoned or salvaged prior to its final resting place on Niagara Shoal.

FINAL DISPOSITION

•The wreck rests on a ledge at 90 feet (27.4 meters), just 300 feet downstream from the Iroquoise.

•The site is located inside the U.S. side of the shipping channel, making it subject to strong currents and sediment movement.

•Over time, the wreck has deteriorated significantly, particularly since 2009, when observers noted advanced decay in its structural integrity.

CONDITIONS & ACCESSIBILITY

•Visibility & Hazards: The strong currents in the area can make diving challenging, and Visibility may be affected by sediment stirred by currents or passing ships.

•Dive Suitability: The depth and conditions make this wreck accessible to advanced divers with proper equipment and training for strong currents. A drift dive is the most practical method of exploration.

•Notable Features:

•White periwinkle shell deposits partially bury the wreck, creating an optical illusion of shallower depth.

•The wreck’s precarious position on the edge of a slope adds to the complexity of dives.

NOTMARs & ADVISORIES

•Divers should exercise caution due to the site’s proximity to the U.S. shipping channel and the steep slope below the wreck.

•Consult local Notices to Mariners (NOTMARs) for updates on current conditions and shipping activity in the area.

SIGNIFICANCE

The unknown steam launch at Niagara Shoal is a poignant reminder of the diverse array of vessels that plied the waters of the St. Lawrence River and Lake Ontario in the late 19th century. While small and unassuming, such vessels were integral to local economies and maritime operations.

The wreck’s deterioration highlights the fragile nature of underwater heritage, underscoring the importance of documentation and preservation efforts by organizations such as the St. Lawrence Historical Foundation.

RESOURCES & LINKS

•Maritime History of the Great Lakes: A source for historical records of similar vessels.

•Great Lakes Shipwreck Research: Detailed archival research on regional wrecks.

•St. Lawrence Historical Foundation: Original surveyor of the site.

CONCLUSION

The unidentified steam launch at Niagara Shoal, resting near the wreck of the Iroquoise, represents a small but intriguing piece of Great Lakes maritime history. Its deteriorated condition and position in a high-current area make it a challenging but rewarding dive for advanced divers. Further research and exploration may shed light on the vessel’s origins and its role in the region’s bustling maritime past.

KEYWORDS

Niagara Shoal, steam launch, shipwreck, strong currents, St. Lawrence Historical Foundation, Iroquoise wreck vicinity, white periwinkle shells, Great Lakes history.