

Founded by Francis and Richard B. Weeks, the company began unloading coal at New York docks with two floating cranes and rapidly grew its maritime expertise.
Over decades it expanded services—wreck removal, navigational aids installation, dredging, marine construction—and built one of North America’s largest floating fleets.
Now a standalone subsidiary of Kiewit (since January 2023), it leverages deep equipment resources and legacy partnerships dating back to the 1960s.
Typical projects span coastal protection, port infrastructure, tunnels (e.g., Spadina Subway, Euclid Tunnel), and heavy
lift salvage of aircraft and vessels.
With divisions in construction, dredging, tunneling, aggregates and marine services, it delivers turnkey solutions using cranes, dredges, barges, tugs and custom yards.
Standout feats include recovering the downed US Airways Flight 1549 hull.
We care for the well
being of our people and help them grow in their ability to be successful.
We conduct our business to the highest ethical standards and take responsibility for our actions.
We commit to excellence in all we do with a focus on quality and continuous improvement.
We preserve the unique culture to build a stronger organization for future generations of employees.