The Washington State Department of has approved plans by the Port of Seattle to refurbish Pier 90 to accommodate a temporary cruise ship terminal. Plans by the Port of Seattle to refurbish Pier 90 to accommodate a temporary cruise-ship terminal will actually be better for the environment, according to the Department of Ecology. Ecology's authorization certifies that the Port's plans meet federal and state requirements for protecting shore areas and water quality, and it enables the Port to begin construction this summer so that cruise ships may begin docking at the facility next spring. The project will benefit the environment by replacing Pier 90's deteriorating, creosote-treated wood piles with a smaller number of concrete piles.