Naval Shipyards: Complete Information Needed for Decision-Making on Multibillion-Dollar, 50-Year Infrastructure Program

What GAO Found The Navy’s Shipyard Infrastructure Optimization Program (SIOP) will surpass $200 billion and take over 50 more years to execute, based on GAO’s analysis of Navy plans. Developing the plans and cost estimates to rebuild the Navy’s four public shipyards has taken the Navy years longer—and will cost much more—than originally anticipated due to multiple challenges and changes involved in the program. For example, environmental issues led to additional projects and more extensive work affecting project plans and costs at the shipyards, including Puget Sound Naval Shipyard (see figure