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The company traces its origins back to 1919 when it started operations with coal unloading at New York docks.
500-ton crane
Heavy-Lift Capability
The company operates a 500-ton revolving crane capable of handling massive objects, such as lifting the Space Shuttle Enterprise.
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.
Culture + Values
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.
Environment + Sustainability
4 billion gallons
Annual sewer overflow diverted
Participates in Project Clean Lake to reduce combined sewer overflow by diverting billions of gallons annually.
10‑mile pipeline
Sediment pipeline implementation
Electric boosters used in a notable project with a significant sediment pipeline system.
Vision: Culture of environmental and social responsibility embedded in all operations.
Planet: Committed to creating healthy and resilient coastal communities with highest degree of care and protection.
Innovation: Invested in electric boosters, repowering vessels, electrifying operations, and acquiring electric hydraulic cranes.
Equipment: Fleet includes three fully‑electric E‑cranes, seven hydraulic dredges, tugboats with Tier II+, and hopper dredges with Tier IV engines to reduce NOₓ and particulate emissions.
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