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Pontoon X was the first to depart the graving dock at Concrete Technology Corporation in Tacoma (2/21/08).Pontoon ZD makes its way out of Concrete Technology Corporation in Tacoma under the guidance of Foss Tugboats (2/21/08).With pontoon X clear of the graving dock, crews from WSDOT, Foss Tugboats and Kiewit-General focus on pontoon ZD (2/21/08).Foss Tugboats played a critical role in float-out operations, ensuring pontoons cleared the graving dock without incident (2/21/08).