Wheel Arrangement: 2-6-6-2
Tank or tender type: Rectangular tender
Build date: 1910
Serial number: 34389
Driver diameter: 55 in.
Boiler pressure: 210 psi
dimensions: 20 & 31x30 in
Grate area: 53 sq
Fuel: 13 tons coal, later converted to oil
Water capacity: 8,000 gal
1910-1940: Northern Pacific Railway #3100.
1940 – 1945: Polson Logging Company #3100. Railroad Camp, WA
1945 – 1959: Rayonier Inc. #3100. Railroad Camp, WA.
-Second sand dome added by Rayonier
-Unknown date: Tender converted for use as a fire car. Among other changes, the tender tank was narrowed and shortened. It was later scrapped when Rayonier abandoned their railroad operations.
Built for the Northern Pacific Railway, #3100 was the first locomotive of the Z-1 class 2-6-6-2s, of which six were built in 1910 (#3100-#3105). The Z-1 class was generally similar in basic dimensions to Great Northern's L-2 class, except the Z-1s lacked the Belpaire firebox and had piston valves. #3100 was used as a helper for NP freights traversing mountain passes in Idaho. In the late 1930s, the Polson Logging Company of Grays Harbor, Washington was in the market for larger locomotive power for it's expanding railroad and purchased #3100 from NP in 1940. #3100 spent the rest of her life working out of Railroad Camp on the Grays Harbor branch, both for Polson, and then Rayonier. Retired in the late 1950s, #3100 was scrapped at Railroad Camp in 1959.
Drawing: #3100 with Rayonier - 1950s
Photo: #3100 and other Polson locomotives in a 1940s publicity lineup - Warren W. Wing Collection
Photo: #3100 at Railroad Camp in 1953 - Martin E. Hansen Collection