About
Built in Canada.
Floating worldwide.
Sentinel Heavy Barges builds sectional steel barges for the marine construction industry. Over 900 of our barges are working across Canada and the United States.
Marine construction runs on platforms — barges that hold cranes, hammers, dredges, and crews steady on the water. We started Sentinel because what was available to contractors was either too small to do the job, too heavy to mobilize without specialty rigging, or built with threaded connections that seized after one season in salt water.
We worked with naval architects and Transport Canada to engineer a flat rectangular closed-deck sectional barge that locks together with cast male-female couplers — fast, repeatedly, without corrosion failure — and built a fabrication shop around CSA-grade steel and robotic welding to back it up.
Today, Sentinel barges work on bridge piers in the Maritimes, dredge platforms in the Great Lakes, pile-driving floats on the Pacific coast, and remote back-country lakes that no permit truck can reach.
In Our Shop
One shipyard. One crew. Every weld laid down on the same floor.
Sentinel sections aren't subbed out. Every hull plate is cut, every coupler is cast and machined to spec, and every weld is laid down by our crew on the same shop floor — one weld procedure, one steel grade, one set of QC eyes. That's why a section we built fifteen years ago still couples cleanly with one we shipped last week.
