Identification and Site Information #
History #
The John B. King, built in 1917, was a large drilling barge designed for public works projects, specifically deepening the St. Lawrence River channel. The scow, weighing over 700 tons and fitted with 12 drills, played a crucial role in widening the waterway. Its owner, John B. King & Co., had a contract with the Department of Public Works for this task.
On June 26, 1930, a catastrophic event unfolded near Brockville Narrows. The John B. King was preparing to detonate dynamite charges under the vessel when a severe thunderstorm hit the area. A bolt of lightning struck the scow, igniting the explosives stored on board. The resulting explosion was massive, with debris launched 200 feet into the air, destroying the vessel. Of the 41-43 crew members, only 11 survived. Notably, a dog named Hero, previously known for saving a life, perished alongside 30 crew members. Rescue operations were launched immediately, and only 13 bodies were recovered. Seventeen crew members remain unaccounted for to this day.
Final Disposition #
The wreck of the John B. King remains in the Brockville Narrows of the St. Lawrence River. While salvage operations recovered some parts of the vessel, the scow was largely lost in the explosion, with extensive wreckage spread throughout the riverbed.
Located By & Date #
The exact wreck site remains documented but largely undisturbed since the disaster. The location is near Cockburn Island, St. Lawrence River, at coordinates 44.56283°N, 75.71179°W.
Memorial #
A monument was erected on Cockburn Island in 1930 by the Canada Department of Public Works in honor of the men who perished in the explosion. This monument serves as a lasting memorial to the bravery and sacrifice of the crew.
Notmars & Advisories #
Navigational hazards and wreckage from the John B. King may still be present in the Brockville Narrows. Boaters and divers are advised to take caution in the area due to the possibility of submerged debris.
Resources & Links #
•Maritime History of the Great Lakes
•Canadian Public Works Department Records
Conclusion: #
The John B. King disaster is remembered as one of Canada’s most tragic maritime accidents. The memorial on Cockburn Island stands as a poignant reminder of the lives lost in service of public works on the St. Lawrence River. The story of this vessel highlights both the dangers of early 20th-century maritime construction and the unpredictable forces of nature.
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