Manson Construction Company of Seattle initialized a project to build a new, high capacity derrick barge for marine construction service. Glosten designed the barge hull to suit Manson’s innovative operational needs.
The barge needed to support a huge crane and extensive construction hardware, but also maintain the maximum clear deck area for construction services work. Shipyard constructability and schedule issues were also a concern.
Creative Engineering Solutions
Maximum clear deck area was achieved by installing the large mooring winches below deck, with mooring wires running through line galleries under the deck to overboarding sheaves mounted in recessed pockets at each corner of the hull. With the goal to design the hull that Manson needed, while considering shipyard constructability and schedule issues, Glosten engineering efforts were carried out in consultation with Gunderson Marine, of Portland, Oregon, the barge hull builder. Glosten designed the barge hull in detail and obtained ABS Class approval including stability approvals to allow unlimited, offshore derrick barge service.
The barge hull was delivered to the Manson yard in Houma, Louisiana, where Manson completed the outfitting and commissioning. Glosten supported Manson on-site with technical guidance on mechanical systems and resolving regulatory questions. The derrick barge has an American MG509 crane with a 265′ boom, and a capacity of 1000 tons over the stern and 800 tons fully revolving.
Related Case Studies
Emergency Vessel Attachment & Towing System
Glosten has worked with partners to develop a unique Emergency Vessel Attachment & Towing System (EVATS™) designed to overcome some of the most dangerous aspects of emergency towing.Read More
Ballast Module Retrofit Program
Glosten was tasked with developing a ballast module retrofit design and integration program for a major tank barge operator. Upon determining the most practical integration solution, Glosten provided...Read More
Bulk Carrier Ballast Water Treatment System Retrofit
The Sheila Ann, a Panamax bulk carrier owned by CSL, was scheduled for drydocking in December of 2014. CSL tasked Glosten with determining the feasibility of retrofitting the...Read More
A Shipboard and Land-Based Ballast Water Treatment Testing Facility
Glosten served as the technical consultant for the engineering and design of the Golden Bear Facility, and helped develop the facility’s standard procedures and quality control practices.Read More