In 2012, HEGER designed a steel floating drydock based on parameters provided by VIGOR. The dock was designed to meet the requirements of the American Bureau of Shipping for lifting vessels displacing up to 80,000 long tons and US Navy’s MIL-STD 1625D for lifting vessels displacing up to 40,000 LT.
The dock’s design vessels were considered to be some of the world’s largest cruise ships such as CARNIVAL LEGEND, the largest vessels in Military Sealifts Commands’ fleet such as T-ESB and T-AH, and US Navy ships including the LHD/LHA hull and LPD-17 class.
The floating drydock design included naval architecture evaluations, structural designs, equipment sizing, layouts and schematics for various mechanical and electrical components. Notable outfitting items included a 3-point fixed mooring system, vehicle access bridge, pedestrian gangways with utility services, vessel handling trolley system, stormwater collection tanks, etc.
The floating drydock designed included naval architecture evaluations, structural designs, equipment sizing, layouts and schematics for various mechanical and electrical components. Notable outfitting items included a 3-point fixed mooring system, vehicle access bridge, pedestrian gangways with utility services, vessel handling trolley system, stormwater collection tanks, etc.
HEGER also assisted VIGOR in developing a Facility Certification Report (FCR) which was submitted to NAVSEA for review prior to commissioning and certification.
After being built in 2014 by SHANGHAI ZHENHUA HEAVY INDUSTRIES (ZPMC) located in Shanghai, China, the dock was delivered in three pieces to Portland, Oregon aboard a heavy lift vessel.
After the dock was assembled and installed in its mooring gripes, the dock was certified by HEGER engineers and put into service in late 2014. The dock is also certified by NAVSEA for docking US Naval vessels.
HEGER continues to provide ongoing engineering support with routine maintenance inspections.
