USS Ohio (SSGN 726) in dry dock at Puget Sound Naval Shipyard. The Columbia-class is to replace the Ohio class. U.S. Navy file photo.
The US Navy’s ambitious plan to construct 12 Columbia-class submarines equipped with intercontinental ballistic missiles (ICBM) could hit the wall owing to the cost overruns of US$20 million, or about 20% of the projected cost, The Eurasian Times reports.
