Shipyard Infrastructure Optimization Program - SIOP

05/14/2026

Welcome aboard Captain! CAPT David M. Matvay has taken the helm at PMO 555 (SIOP).

Capt. Luke B. Greene salutes his relief, Capt. David M. Matvay during Greene's retirement and Change of Office ceremony May 7. Matvay assumed duties as program manager for the Navy’s Shipyard Infrastructure Optimization Program (SIOP), Program Management Office (PMO) 555 at the National Museum of ...

05/12/2026

Congratulations to CAPT Luke Greene on retirement after 34 years of dedicated service to our Nation! Fair winds and following seas.

Capt. David M. Matvay assumed duties from Capt. Luke B. Greene as program manager for the Navy’s Shipyard Infrastructure Optimization Program (SIOP), Program Management Office (PMO) 555 at the National Museum of the U.S. Navy.

05/07/2026

04/28/2026

Congratulations to members of our team at Norfolk Naval Shipyard recognized by CAPT Greene April 21!
* Jennifer Wills, for her leadership and analysis in delivering one of SIOP's modeling and simulation capabilities.
* John Knibb, for his coordination of several key projects including modernization of the shipyard's electrical systems, and studies
of the shipyard's utilities and weight handling program.
* Traycie West, for her management of complex permitting and regulatory obligations to ensure projects can proceed.
* Sharon Raymond, for her leadership as acting Infrastructure Planning Division manager.
* Sandra Dunn, Chris Schellhammer, and J.C. Douglass for their support of a wide range of SIOP efforts!

04/23/2026

Great team building with Bring a Child to Work Day and a Washington Nationals game!

04/23/2026

04/14/2026

Congratulations to members of our team at Puget Sound Naval Shipyard and Intermediate Maintenance Facility recognized by CAPT Greene
April 13!
* Heather Hammers, for her coordination with stakeholders for the proposed new multi-mission dry dock, enabling the design team
to refine the potential scope for its contracting.
* Rick Mathison, for his role in establishing a contract to move shipyard staff to leased spaces during SIOP-related
construction.
* Dave Ulrich, for taking on industrial planning division manager responsibilities in addition to his normal role with utilities.

04/09/2026

KITTERY, Maine – Chief of Naval Operations Adm. Daryl Caudle visited Portsmouth Naval Shipyard to engage with shipyard leadership regarding ongoing submarine modernization efforts, technological innovation and quality-of-service initiatives, April 9.

04/07/2026

Our SIOP/NAVFAC/shipyard/industry team continues to make progress on building the new Dry Dock 5 at Pearl Harbor Naval Shipyard! Program Executive Officer Infrastructure and Expeditionary Mark Edelson got to see it in person during a March 30 visit. Through SIOP, NAVFAC’s OICC PHNSY is delivering state-of-the-art facilities, utilities, and infrastructure that will enhance the Navy’s ability to overhaul, repair, and modernize submarines well into the future. , ,

03/19/2026

Planners, engineers, and program personnel from Naval Sea Systems Command, Naval Facilities Engineering Systems Command, the Shipyard Infrastructure Optimization Program (SIOP), and all four U.S. public naval shipyards receive training on the Shipyard Industrial Process Model (SIPM) at the Washingto...