The U.S. Navy on Monday awarded Bath Iron Works a $23.9 million modification to a previously awarded contract as a lead yard for the DDG 51, or Arleigh Burke-class destroyers.

The work will provide engineering and technical assistance for new construction of DDG 51-class destroyers, according to the announcement from Naval Sea Systems Command.

The Navy originally planned to replace the Arleigh Burke-class line of destroyers with Zumwalt-class “stealth” destroyers, but truncated the line and reverted to funding Arleigh Burke-class destroyers after Congress raised concerns about construction costs for the new line.

The Navy reverted to contracting for new Arleigh Burke-class destroyers in 2010, and Bath Iron Works conducted sea trials on the first vessel it built for the restarted line in 2016.

All but 1.5 percent of the work will be performed in either Brunswick or Bath, according to the announcement.

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