This is a contract for annual maintenance dredging of the Grays Harbor and Chehalis River Federal Navigation Channel in Washington State. The work is to be performed in Grays Harbor County, specifically from the Pacific Ocean to the Port of Grays Harbor and the cities of Aberdeen, Hoquiam, and Cosmopolis. The project involves maintenance dredging annually over a fifteen-year period. The performance period for this work is from 2018 through 2033.