The US Navy wasted nearly $2 billion on a failed effort to overhaul its aging cruiser fleet
Congress provided funding for a 15-year ship modernization program. Since 2015, the Navy has spent roughly $3.7 billion of those funds trying to modernize seven cruisers.
Poor planning and oversight forced the sea service to decommission four of the seven cruisers mid-service, costing $1.84 billion of wasted expenditure.
The deactivated warships were cannibalized for parts for remaining cruisers in the modernization program.
Nine Ticonderoga-class cruisers are still in service with the US Navy.
The GAO report said the Navy "has yet to identify the root causes of unplanned work or develop and codify root cause mitigation strategies to prevent poor planning from similarly affecting future surface ship modernization efforts."
The Navy continues to face rising maintenance costs and declining funding despite years of warnings from defense officials and experts about the problem.
The Navy has yet to develop a new class of cruiser after scrapping the next-generation Cruiser program in favor of procuring upgraded versions of the Arleigh Burke-class destroyers.
The Navy recently announced a $10 billion effort to refurbish its older Arleigh Burke-class destroyers.
Only three ships are expected to complete the modernization program.