SEATTLE - Petty Officer 2nd Class Aaron Harris, a boatswains mate at Coast Guard Station Quillayute River, Wash., conducts a bar assessment on Apr. 7, 2012. A river bar is assessed by a qualified coxswain periodically to determine the level of restrictions needed to be applied to vessels crossing the river entrance. U.S. Coast Guard high dynamic range photo by Petty Officer Eric J. Chandler.
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