Split-Hull Hopper Dredge Delivered By Nichols

The Nichols Brothers, Whidbey Island, Wash., facility completed the second of the two hulls comprising the 265-foot by 54-foot by 22-foot split hull, self-propelled hopper dredge for Manson Construction Company in Seattle, in May of this year. Each of these massive sections was towed from Whidbey Island to Manson's Seattle facility. The 24-foot by 44-foot by 16-foot superstructure with 16- foot by 20-foot wheelhouse was barged down to the Manson dock. The 18-man crew will be comfortably housed in these centrally heated and air-conditioned crew's quarters.

This unusual split-hull concept was conceived before 1900, but has been used primarily in dump barges. Manson's new dredge Newport, being self-propelled, will be a new departure from their traditionally tugassisted barges. Through this design, Robert W. Long, Seattle naval architect, has provided Manson with a vessel capable of dredging mud and sand to a depth of 65 feet. Hopper capacity is 4,000 cubic yards.

The propulsion system featuring two "Z" drive steerable propellers and a bow thruster from Maritime Industries, Vancouver, B.C., makes this huge vessel more maneuverable and provides the ability to work in confined waters.

Other stories from November 1983 issue


Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.