Hetch Hetchy 6

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Hetch Hetchy 6
Hetch Hetchy RR engine 9.JPG
Hetch Hetchy Engine No. 6 after restoration
Type and origin
Power type Steam
Builder Lima Locomotive Works
Serial number 3170
Model 80-ton Class C Shay
Build date November 1921
Configuration Three truck Shay
Gauge 4 ft 8 12 in (1,435 mm)
Driver dia. 36 in (914 mm)
Adhesive weight 167,200 lb (76 t)
Total weight 167,200 lb (76 t)
Fuel type Oil
Fuel capacity 1,800 US gal (6,814 l)
Water cap 3,500 US gal (13,249 l)
Boiler 50 in (1,270 mm)
Cylinders Three
Cylinder size 13 12 in × 15 in (343 mm × 381 mm)
Performance figures
Tractive effort 35,100 lbf (156 kN)
  • 1921–1926: Hetch Hetchy Railroad
  • 1926–1958: Pickering Lumber Corp.
Numbers 6
Retired 1958
Current owner El Portal Transportation Museum

Static display

Hetch Hetchy Railroad Engine No.6
Hetch Hetchy 6 is located in California
Hetch Hetchy 6
Hetch Hetchy 6 is located in the US
Hetch Hetchy 6
Location CA 140, El Portal, California
Coordinates 37°40′27″N 119°47′11″W / 37.67417°N 119.78639°W / 37.67417; -119.78639Coordinates: 37°40′27″N 119°47′11″W / 37.67417°N 119.78639°W / 37.67417; -119.78639
Area less than one acre
Built 1921
Architect Lima Locomotive Co.
Architectural style 3T Shay Locomotive
NRHP Reference # 78000360 [2]
Added to NRHP January 30, 1978

Hetch Hetchy Railroad no. 6 is a standard gauge three truck Shay locomotive built for the Hetch Hetchy Railroad by Lima Locomotive Works in 1921.

Hetch Hetchy Engine No. 6 prior to restoration

Although it operated as a common carrier, the Hetch Hetchy Railroad was built by the City of San Francisco to build the O'Shaughnessy Dam across Hetch Hetchy Valley as part of the city's water supply. The dam was completed in 1923 and the railroad scaled back operations, selling some of its equipment, including #6, which was sold to Pickering Lumber Corporation in Standard, California. The locomotive served Pickering's logging operations until 1958 when it was retired.[1]

The railroad operated four Shays at different times. Number 6 was by far the largest, the only three truck Shay of the lot and weighing more than twice as much as the others.[1]

It is in a small collection of railroad equipment owned by the National Park Service near El Portal, California. Number 6 was added to the National Register of Historic Places in 1978 as Hetch Hetchy Railroad Engine No.6.[2]


  1. ^ a b c "Lima Locomotive Works, Inc. s/n 3170". Shay Locomotives. Retrieved 4 February 2010. 
  2. ^ a b National Park Service (2009-03-13). "National Register Information System". National Register of Historic Places. National Park Service.