060721-N-0857S-005 (Jul. 21, 2006)US Navy (USN) Boatswain's Mate 2nd Class (BM2) Timothy Colwart ties up the Naval Support Activity (NSA) New Orleans, Louisiana (LA), flag barge after a trip on the Mississippi River. The boathouse Sailors provide shuttle boat service for USN military and civilian personnel that travel between NSA's two facilities located on the east and west banks of the river.U.S. Navy official photo by Sam Shore (RELEASED)