Coast Guard Chief Petty Officer Harold Zurlo marks down the status of day markers while aboard a TANB (Trailerable Aids to Navigation Boat) near Lake Arthur, Louisiana, Oct. 12, 2020. Coast Guard crewmembers from Aids to Navigation Team Sabine conducted a damage assessment survey of the navigable waterways along Lake Arthur, Grand Lake, and the Mermentau River in the aftermath of Hurricane Delta.