BATH, Maine — The U.S. Navy has awarded a contract modification to Bath Iron Works worth up to $38 million for work on a class of Navy destroyers.

Republican U.S. Sen. Olympia Snowe of Maine said Thursday that the award allows BIW to provide engineering services in detail design and construction for the DDG-1000 warships.

The first DDG-1000, the USS Zumwalt, is under construction at BIW and is scheduled to be delivered to the Navy in 2013.