Project Tag: rov

Guam Outfall Diffuser Installation

Global was subcontracted by Healy Tibbitts Builders (HTB) to install a new outfall and diffusers for the Guam Waterworks Authority as an upgrade of the treatment plant’s existing high density polyethylene (HDPE) outfall pipe. The outfall pipe is located in the Philippine Sea, approximately 2,000 feet offshore at an approximate depth of 140 FSW. The …

ROV Recovery of Sunken Tug Samantha J

The 35’ steel-hull tug Samantha J sank in the Northumberland Channel near Nanaimo, BC in 2014 after she was overcome by the barge she was towing. The vessel sank in 230 feet of water and remained submerged for 4 years with hundreds of gallons of fuel oil, engine oil and hydraulic oil on board. Recurring …

Floating Bridge Anchor Cable Excavation

Global was subcontracted to excavate and side-cast bottom sediment around the anchor cables holding Seattle’s I-90 floating bridge in position so the cables could be replaced. The process utilized a jetting tool designed and fabricated by Global, as well as ROV observation to guide the jetting tool into position and monitor the excavation of material. …

Subsea Cabling Project

Global was contracted by L3 MariPro to provide all diving and ROV work for a subsea cabling project off the coast of Florida. Mobilizing from Fourchon, LA the team secured all dive and ROV equipment aboard a Dynamic Positioning Ship (DP2) hired by Global as the dive support vessel. An Ultrashort Baseline (USB) acoustic positioning …

Hood Canal Bridge Band Removal

Washington State DOT determined that to avoid galvanic corrosion, two stainless steel bands that had previously been installed on one of the Hood Canal Bridge’s anchor cables needed to be removed; Global was awarded the small works project bid. The team mobilized to the site on Global’s Prudhoe Bay and used their Falcon ROV to …