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Building the Shipyards the Nation Needs

The Navy's four public shipyards need substantial recapitalization and reconfiguration in order to improve the timely return of ships and submarines back to the fleet following maintenance and modernization, which in turn supports the combat readiness of the Navy the nation needs.

Naval Sea Systems Command's Shipyard Infrastructure Optimization Program (SIOP) is a comprehensive, 20-year, $21-billion effort to modernize infrastructure at the four naval shipyards through:

  • Performing critical dry dock repairs.
  • Restoring and optimally placing shipyard facilities.
  • Replacing aging and deteriorating capital equipment.






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Shipyard Infrastructure Optimization Program video



Navy seeks public input on planned Pearl Harbor shipyard improvement projects
Sept. 23, 2020 - The Navy’s Shipyard Infrastructure Optimization Program (SIOP) took another step forward Sept. 15

Portsmouth Shipyard Opens Renovated Insulators Shop
Portsmouth Naval Shipyard, Kittery, Maine:  A Ribbon Cutting Ceremony was held on 22 June 2020 to official complete the new home of the Shop 57 Insulators in building 166.  Pictured (l to r):  Pipe Shop Superintendent Brian Donnell, Shipyard Commander Capt. Daniel Ettlich, Public Works Officer Cmdr. Doug Herrin, and Structural Associates Project Manager Greg Halsey.
July 1, 2020 - Portsmouth Naval Shipyard officially opened the renovated Building 166 for the Shop 57 Insulation

Secretary Geurts visits Pearl Harbor Naval Shipyard with an eye on the future
James F. Geurts, assistant secretary of the Navy for research, development and acquisition, looks into Pearl Harbor Naval Shipyard & Intermediate Maintenance Facility’s Dry Dock #3. In Fiscal Year 2022 once the last Los Angeles-class submarine availability is complete, the shipyard’s Dry Dock #3 will become obsolete due to its size. To maintain and grow PHNSY & IMF’s nuclear maintenance capacity and provide best value to taxpayers, the Shipyard Infrastructure Optimization Program will optimize this critical shipyard location.
Feb. 14, 2020 - Joint Base Pearl Harbor-Hickam, HAWAII -- James F. Geurts, assistant secretary of the Navy for

Pearl Harbor Naval Shipyard’s Dry Dock One turns 100
Rep. Ed Case (center), shipyard worker (left), and Ali'i Pauahi Hawaii Civic Club member (right) at Dry Dock One on Aug. 21, 2019.
Aug. 23, 2019 - JOINT BASE PEARL HARBOR-HICKAM, Hawaii – Today Pearl Harbor Naval Shipyard and Intermediate


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