Fireboat No. 1 was built in 1929 for the Port of Tacoma by the Coastline Shipbuilding Company of Tacoma, Washington for US$148,000. She is 96 feet 6 inches (29.41 m) long with a 21-foot-6-inch (6.55 m) beam and a 6-foot (1.8 m) draft. Her seven water cannons have a capacity of 10,000 US gallons per minute (0.63 m3/s). Fireboat No. 1 is the only fireboat in U.S. history to protect a major port by herself for more than half a century.