[4] She was powered by "double vertical (compound) marine steam engines" capable of driving her at 10.5 knots (19.4 km/h; 12.1 mph).

[3] She was equipped with three American LaFrance steam piston pumps rated at a capacity of 3,000 US gallons per minute (0.189 m3/s) each.

On July 30, 1914, Duwamish was involved in fighting the fire on the Grand Trunk Pacific dock.

[6][7] This capacity was only exceeded in 2003 by the Los Angeles Fire Department's Warner Lawrence, which delivers 38,000 US gallons per minute (2.397 m3/s).

[9][10] She is permanently moored at the Historic Ships Wharf near the Museum of History & Industry at South Lake Union Park in Seattle.