Wheel Arrangement: 2-6-6-2t
Tank or tender type: Full saddle-tank
Build date: March 1926
Serial number: 59087
Driver diameter: 44 in.
Boiler pressure: 200 psi
Cylinder dimensions: 17 & 26x24 in
Grate area: 26 sq ft
Tractive effort: 38,000 lbs
Weight: 226,000 lbs
Fuel: 4 tons coal, later converted to oil
Water capacity: 2,500 gal
1926-1928: Potlatch Lumber Company #24. Bovill, ID (1928 – Elk River, ID).
1931-1934: Potlatch Forests Inc. #24. Elk River, ID
1934-1959: Weyerhaeuser Timber Co #108. Longview, WA.
1959-1964: Static display. Longview, WA.
1964-present: Stored. Puget Sound Railway Historical Association (Northwest Railway Museum), Snoqualmie, WA.
-Painted "Olive green & Aluminum, Style 220, Painting Scheme A" when built. - Jim Wilke notes from Baldwin records.
-Unlike the other two full saddle tank logging Mallets (Saginaw 4 & 5), Potlatch #24 was built with the air reservoirs mounted on top of the saddle tank.
-Unknown date: Cabbage stack added while at Potlatch Forests Inc, later removed
-1970: Northwest Short Line of Seattle, WA imported 500 HO scale brass models of #108. However, the models lack #108's distinctive tank-mounted air reservoirs. The model also has a standard logging Mallet cab with two equally-sized windows on each side. On #108's cab the front windows are smaller. For all intents and purposes, the model is really of Saginaw #4 & #5, except the model does have #108's modified fuel bunker.
-The fireman's side cross-compound compressor is now at the Mt. Rainier Scenic RR.
This full saddle tank Mallet was built as #24 in 1926 for the Potlatch Lumber Company of
Bovill, Idaho. In 1936 it was sold to the Weyerhaeuser Timber Company for use on their line
near Longview, Washington, and renumbered to 108. Retired in 1959, #108 was placed on display
in Longview along with a Lidgerwood tower skidder. In 1964, #108 was
removed from display and donated to the Puget Sound Railway Historical Association
of Snoqualmie, WA. #108 was moved from Longview to Auburn, WA, and then
shipped with other PSRHA equipment stored at Auburn over the NP line to
Snoqualmie. Once at Snoqualmie, #108 was placed in storage. Since
then, #108 has remained in storage, some parts have found their way to other
locomotives in the collection (one of the compressors was apparently used on
2-8-2 Rayonier #70).
Drawing: Potlatch Lumber #24 as built
Drawing: Potlatch Forests Inc. #24 - 1934
Drawing: Weyerhaeuser 108 – late 50s
Photo: #108 at Headquarters Camp, WA in 1952 - Martin E. Hansen Collection
Photo: 108 in Niblock Yard - 1986
Photo: 108 in storage - 2000
An example of the NWSL HO scale #108 model