Berlin Mills Railway 7

Berlin Mills Railway 7 is a 2-4-2ST steam locomotive at Steamtown National Historic Site in Scranton, Pennsylvania. It was built in 1911 by the Vulcan Iron Works for the Berlin Mills Railway, an industrial line in Berlin, New Hampshire.[1] Number 7 worked there as a switcher until November 1944, when it was sold to the Groveton Papers Company of Groveton, New Hampshire.[1] In 1956, it was finally replaced by a diesel locomotive, ending 45 years of use.[1] After a few years of idleness, though, the locomotive was leased to the Woodsville, Blackmount and Haverhill Steam Railroad, a new tourist railroad near Haverhill.[1] It operated as the only locomotive for this company until it folded after 1963. It was ultimately donated to Steamtown by the Groveton Paper Company in 1969.[1]

Berlin Mills Railway 7
No. 7 on static display at Steamtown National Historic Site, on April 6, 2024
Type and origin
Power typeSteam
BuilderVulcan Iron Works
Serial number1679
ModelI-15-S
Build dateJanuary 1911
Specifications
Configuration:
 • Whyte2-4-2ST
 • UIC1′B1′ n2tG
Gauge4 ft 8+12 in (1,435 mm)
Leading dia.26 in (660 mm)
Driver dia.44 in (1,118 mm)
Trailing dia.26 in (660 mm)
Length30 ft 9 in (9.37 m)
Width9 ft 10 in (3.00 m)
Adhesive weight85,000 lb (38.6 tonnes)
Loco weight115,000 lb (52.2 tonnes)
Fuel typeCoal
Fuel capacity2 short tons (1.8 tonnes)
Water cap.1,500 US gal (5,700 L; 1,200 imp gal)
Boiler pressure140 psi (0.97 MPa)
CylindersTwo, outside
Cylinder size17 in × 24 in (432 mm × 610 mm)
Valve typeSlide valves
Performance figures
Tractive effort18,759 lbf (83.44 kN)
Career
OperatorsBerlin Mills Railway, Groveton Papers Company, Woodsville, Blackmount and Haverhill Railroad
Numbers7
LocaleWhite Mountains Region
Last run1963
RetiredJanuary 25, 1956 (revenue service)
1963 (excursion service)
Preserved1969
Restored1962
Current ownerSteamtown National Historic Site
DispositionOn static display

References

edit
  1. ^ a b c d e "Berlin Mills Railway No. 7". Steamtown. United States National Park Service. February 14, 2002. Archived from the original on November 6, 2013.