BATH (AP) – The Navy on Thursday awarded Maine shipyard Bath Iron Works a final $1.4 billion contract to build the DDG-1000 Zumwalt Class destroyer, U.S. Sen. Susan Collins said.

The DDG-1000, previously known as DD(X), is the Navy’s next-generation destroyer, said Collins, R-Maine, a member of the Senate Armed Services Committee.

In July, the Navy announced that BIW would deliver the first ship of the class to the Navy. BIW, a subsidiary of General Dynamics Corp., and Northrop Grumman in Mississippi will alternate completion and delivery of follow-on ships.