The US Navy’s shipyard overhaul is going to cost billions more and take decades longer than planned, watchdog warns

The GAO report found that the program "will surpass $200 billion and take over 50 more years to execute." Photo by Daniel DeAngelis/Norfolk Naval Shipyard Overhauls to US Navy public shipyards will take decades longer and cost billions more, according to a new report. The GAO found that unplanned issues and costs have extended timelines. Deteriorating conditions at yards have led to backlogs on ship maintenance. The US Navy's plan to repair its public shipyards is expected to cost billions more and take decades longer than originally planned, according to a new government watchdog report. The Shipyard Infrastructure Optimization Program is intended to fix poor conditions at the Navy's four public shipyards, which maintain the fleet's nuclear-powered submarines and aircraft carriers .