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The USRA Light Mountain was a USRA standard class of steam locomotive designed under the control of the United States Railroad Administration, the nationalized railroad system in the United States during World War I. This was the standard light freight locomotive of the USRA types, and was of 4-8-2 wheel arrangement in the Whyte notation, or 2′D1′ in UIC classification.

A total of 47 locomotives were built under the auspices of the USRA.

Original owners[]

USRA originals[]

Railroad Quantity Class Road

numbers

Notes
Missouri Pacific Railroad 7 MT-69 5301–5307 Built 1919 by ALCO. All Scrapped 1943-1947
Nashville, Chattanooga and St. Louis Railway 5 J1-54 550–554 Built 1919 by ALCO-Richmond. All Scrapped 1945-1949
New York, New Haven and Hartford Railroad 10 R-1 3300–3309 Built 1919 by ALCO-Schenectady. All Scrapped 1949-1951
Southern Railway 25 Ts-1 1475–1499 Built 1919 by ALCO. Three to AGS 6692–6694,

five to CNOTP 6495–6499. All Scrapped 1950-1955

Total 47

Copies[]

Railroad Quantity Class Road

numbers

Notes
Louisville and Nashville Railroad 22 L-1 400–421 Built 1926-1930 by Baldwin . All Scrapped 1953-1957
Nashville, Chattanooga and St. Louis Railway 8 J1-54 555–562 Built 1922 by Baldwin . All Scrapped 1955-1956
New York, New Haven and Hartford Railroad 30 R-1-a 3310–3339 Built 1919 by ALCO . All Scrapped 1943-1958
New York, New Haven and Hartford Railroad 9 R-1-b 3304–3348 Built 1918-1919 by ALCO. All Scrapped 1943-1945
New York, Ontario and Western Railway
Minneapolis, St. Paul and Sault Ste. Marie Railroad (Soo Line) 21 N-20 4000–4020 Built 1926-1930 by ALCO and Soo Line. All Scrapped 1944-1959
Total 90

None of the originals built by the USRA or any of the subsequent copies were preserved, being scrapped from 1943 to 1959.

File:Usra.jpg

Steam Locomotives of the United States Railroad Administration (USRA).
Switchers 0-6-00-8-0
Light 2-8-22-10-24-6-24-8-2
Heavy 2-8-22-10-24-6-24-8-2
Articulated 2-6-6-22-8-8-2
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