MacGregor to deliver cranes for largest US-built hopper dredge

Manson Construction S Frederick Paup 1000x502

(SEATTLE) — MacGregor, part of Cargotec, will deliver two 120-foot double telescopic service cranes and one 50-foot telescopic stores crane for Frederick Paup, a self-propelled hopper dredge being built for Manson Construction Co. It will be the largest vessel of its type built in the United States and will operate all over the country.

The crane order was placed by Keppel AmFELS and booked into Cargotec’s 2020 fourth-quarter order intake. The cranes are planned to be delivered to the yard by the end of 2021, with commissioning and testing during 2022 prior to delivery of the dredge in spring 2023.

The larger service cranes are double telescopic cranes 80 feet long when stored that extend to 120 feet. The safe working load (SWL) for these cranes will be approximately 3,900 pounds at 120 feet and 108,000 pounds at minimum reach. The aft stores crane is a single telescopic crane 32 feet long when stored that extends to 50 feet. This model has been installed on a diverse range of vessels in recent years, including a number of fishing vessels in the Pacific Northwest.

MacGregor worked with the vessel owner/operator, Manson Construction of Seattle, and the designer, Hockema Group of Seattle, during the earlier design stage of the project to provide crane models that fit their requirements. The cranes will be built at MacGregor’s facility in Seattle, and the vessel is being built at the Keppel AmFELS shipyard in Brownsville, Texas.

– MacGregor

Manson Construction S Frederick Paup 1000x502
MacGregor rendering
By Professional Mariner Staff