Part of a 'triangle of fire' defense which included Fort Worden and Fort Casey, Fort Flagler helped in the defense of Admiralty Inlet, the gateway to Puget Sound, Bremerton Naval Shipyards and the growing cities of Seattle and Tacoma.

Construction at Fort Flagler began in 1899 with gun batteries Wilhelm, Rawlins and Revere on the main gun line north of the Parade Ground.  Over the next 7 years, construction continued with the addition of 6 more gun batteries, a mortar batter, an anti-aircraft battery, 4 fixed searchlight emplacements and dozens of wood-structure support buildings and housing for fort troops and administration.

During World War I, many of the guns were removed for shipment to the war front in Europe, or were scrapped.  After the war, the fort population was reduced to a caretaker detachment, and by 1937 many of the troop barracks were demolished due to deterioration.

In World War II, new barracks were built, the 1920 era Anti-Aircraft Battery was moved into a 'revised' Battery Rawlins.  The remaining heavy guns were removed by the end of WWII, and in 1954 Fort Flagler was officially deactivated and declared surplus the next year.

Today, Fort Flagler State Park has the same borders as the original fort, and through the dedication of volunteers and park staff, the batteries and historic buildings are preserved for you to explore. 

For more information on the history and function of these defense emplacements visit the Park Museum. 

For pictures and basic info, tap/click a numbered location to the right.