This initiative stems from the Navy’s Shipyard Infrastructure Optimization Program (SIOP), which aims to support the Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility’s (PHNSY & IMF) ability to continue serving the Navy decades into the future by maintaining and modernizing the US Pacific Fleet’s nuclear-powered submarines.
Under the agreement, Mammoet will be responsible for the transport using self-propelled modular transporters (SPMTs) and lifting using a specialized gantry. This toolbox of equipment will be used to install the dry dock’s floor sections which weigh upwards of 4,000t each.
After an anchoring ceremony in Hawaii, participants had the opportunity to commemorate their support by signing piles scheduled to be installed in the dry dock. (Image credit: PHNSY Public Affairs)
The initial work of installing foundational piles into the harbor waters has begun, with project completion expected by late 2027. The new dry dock will be deeper than the existing dry dock which will be replaced and will be able to accommodate Los Angeles and Virginia-class attack submarines for repair, maintenance, and modernization.
Pierre Mille, Sales Manager for Mammoet, states, “We are extremely pleased to have the opportunity to share our expertise and experience on this high-profile project. The heavy lift and transport development strategy we have shared with DHO will allow us to provide an efficient solution and offer the best possible execution strategy for this project. We are very thankful for the opportunity and are eager to build upon our methods to ensure we perform above expectations for our customers.”
Mammoet has also been involved in the modernization of historic multi-mission Dry Dock #1 in Brewer, Maine. (Image credit: Mammoet)
Upon completion, the upgraded facility is expected to have a significantly long life span. Notably, Mammoet has also been involved in the modernization of historic multi-Mission Dry Dock #1 in Brewer, Maine, which was originally constructed during World War II.
