US Naval Dry Dock

Project Information

The US Navy contracted 381 Constructors to enlarge and reconfigure a dry dock for submarines at Portsmouth Naval Shipyard in Kittery, Maine. This seven year project includes a two-bay addition to Dry Dock 1, as well as other improvements.

TIME

Ongoing

LOCATION

Kittery, Maine, USA

NUMBERS

300-acre shipyard

PRODUCTS

O-Pile® 187 -1131

Interesting Facts

For more information on the project please visit:

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The Challenge

Modernize and enlarge an aging dry dock originally designed for Los Angeles-class submarines, ensuring it remains capable of servicing newer submarine classes well into the future.

For Contractors

The 381 Constructors team utilized O-Pile® 187 -1131 for swift, on-schedule installation. The ability to deliver piles 100% manufactured in the USA ensured compliance with Navy requirements and reduced supply chain risks.

For Engineers

The reconfiguration of Dry Dock 1 required a system that could handle the structural demands of servicing larger and more advanced submarines. O-Pile® 187 -1131 provided the necessary load-bearing capacity and long-term durability.

For Owners

According to Sen. Susan Collins (R-Maine), who championed project funding, this expansion is crucial for national security. Upgrades to Dry Dock 1 ensure the Portsmouth Naval Shipyard can effectively maintain the submarine fleet for decades to come.