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Home : Home : Shipyards

Building the Shipyards the Nation Needs

The Navy's four public shipyards -- Norfolk Naval Shipyard (NNSY), Portsmouth Naval Shipyard (PNSY), Puget Sound Naval Shipyard and Intermediate Maintenance Facility (PSNS&IMF), and Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY&IMF) --  perform a vital role in national defense by executing maintenance on submarines and aircraft carriers in order to provide combat-ready ships to the fleet.

Originally designed and built in the 19th and 20th centuries to build sail- and conventionally-powered ships, the Navy's public shipyards are not efficiently configured to maintain and modernize nuclear-powered aircraft carriers and submarines. With the Navy's needed focus on operations, the aging shipyards have been unable to adequately sustain and optimize their facilities, utilities, dry docks, equipment and information technology infrastructure. These inefficiencies and obsolete facilities result in higher maintenance costs, schedule risks and reliability issues.

To create the shipyards that our nation needs requires making significant investments to modernize dry docks, optimize industrial processes and modernize standard equipment to bring these critical industrial sites to modern standards.

The Navy established the Shipyard Infrastructure Optimization Program (SIOP) program office in May 2018. SIOP is a centrally-managed program led by Naval Sea Systems Command (NAVSEA), with support from Naval Facilities Engineering Command (NAVFAC) and Commander, Navy Installations Command (CNIC). NAVSEA is the operating agent and the technical authority for all four shipyards, executing the capital equipment program while NAVFAC provides facilities engineering and construction programs, supports environmental and compliance requirements and retains head-of-contracting-activity authority for facilities and dry dock investments. CNIC is the Navy's shore integrator and directs the Navy's shore environmental program.

The Navy will ensure that the optimization process fully integrates environmental considerations including natural and cultural resources, water and air quality, and more. During the development of individual shipyard plans, the Navy will develop alternatives for assessment under the National Environmental Policy Act (NEPA), Endangered Species Act (ESA) and the National Historic Preservation Act (NHPA). The Navy will work with stakeholders as part of the decision-making process and will conduct all appropriate NEPA, natural resource and NHPA analyses; agency and government-to-government consultations and public engagement and obtain all required permits to ensure a proactive approach to environmental protection.



Navy Shipyards

Shipyard News

Pearl Harbor Battle of Midway legacy continues
USS Yorktown (CV-5) in Dry Dock 1 at the Pearl Harbor Navy Yard, 29 May 1942, receiving urgent repairs for damage received in the Battle of Coral Sea. She left Pearl Harbor the next day to participate in the Battle of Midway.
May 25, 2023 - Eighty-one years ago this week, Sailors and civilians turned the tide of the War in the Pacific. The shipyard each of us call home today played a pivotal role ensuring our Pacific Fleet was ready to surprise the Imperial...

Five ways to improve emotional health: Coping with the ups and downs of daily life comes easily for some, while others might experience extreme anxiety
May 24, 2023 - During the course of daily life, everyone experiences ups and downs resulting from internal or external stimuli. For some, coping with those ups and downs comes easily. However, for others, changes may cause extreme anxiety...

Pennsylvania availability begins: The ballistic missile submarine's arrival marks Dry Dock 4's return to service following recent seismic mitigation work
USS Pennsylvania (SSBN 735) enters Dry Dock 4 May 11, 2023, beginning an 18-month Extended Refit Period at Puget Sound Naval Shipyard & Intermediate Maintenance Facility in Bremerton, Washington. It will be the first extended refit performed on a ballistic missile submarine at PSNS & IMF. (U.S Navy photo by Jeb Fach)
May 24, 2023 - USS Pennsylvania (SSBN 735) entered Dry Dock 4 at Puget Sound Naval Shipyard & Intermediate Maintenance Facility May 11, to begin an 18-month Extended Refit Period.This will be the first maintenance availability in Dry Dock 4...

PHNSY at Onizuka Day of Exploration
Petty Officer 1st Class Adam Massingil, Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility, center, observes two children testing a load they built by lifting it with a crane, at the PHNSY demonstration table Onizuka Day of Exploration, held at University of Hawaii West Oahu, April 22, 2023. Massingil was among a handful of volunteers representing the shipyard at the event as they led activities such as a demonstration of a 3D dry dock simulator, building loads to be lifted with a crane, and trying on diving gear with members of the dive shop. Known as Hawaii's largest STEM event, Onizuka Day of Exploration featured over 100 hands-on activities, workshops, and classes for all ages to enjoy; with a special focus on Hawaiian culture, sustainability, and career development.
May 23, 2023 - A handful of volunteers represented the shipyard at the Onizuka Day of Exploration event, held at University of Hawaii West Oahu, April 22, 2023. The volunteers led activities such as a demonstration of a 3D dry dock...

Crew board development teammates earn Navy Civilian Service Achievement Medals for their innovative efforts
TEAM MEMBERS (from left): Joseph J. Doyle, Seth M. Zwiefelhofer, Bret M. Brown, Daniel F. Souza, Matthew D. Randle, Dennis G. Noah, Adam W. Knauss, Josh T. Fernandez, Dakota S. King, Brett W. Miller, Kyle R. Barone, Thomas L. Hengst, Kellan M. Smalley, Capt. Jip Mosman, Daniel S. Gile, Michelle L. Gilbert, Jonathan D. Fritsch, Michael C. Landin, Joseph R. Goosey, Allie M. Grega, Thomas K. Serrano, Steven K. Denton, Anthony J. Larrea, Mark M. Matos. NOT PICTURED: Heidi L. Butts, Sydney C. Harris, Douglas S. Harms, Mitchell F. Hutchison, Jacob W. Musser, Raymond C. Quitano, Morgan L. Schaleger, Mark W. Simmons, Daniel J. Smith, Alex C. Vandegrift. (U.S. Navy photo by Wendy Hallmark)
May 17, 2023 - The team of Puget Sound Naval Shipyard & Intermediate Maintenance Facility employees who helped spearhead the development of digital crew boards at the command, as part of the Naval Sustainment System - Shipyards initiative,...