Three foot six inch gauge railways in the United States explained

A list of gauge railways in the United States. Apart from historical railways, it is commonly used in underground coal mines.^{[1] [2]} Also, in the past, this gauge had been a popular choice for urban mass transit systems (see table below).

Railroads

State/territory	Railway
Arkansas	Arkansas Midland Railroad (1872-1883, then converted to 3 ft gauge)(defunct) Brinkley, Helena and Indian Bay Railway (1889 to 1900, then converted to standard gauge)(defunct)
California	Los Angeles Railway (dual gauge lines with standard gauge track also present) (all dual gauge lines shared with Pacific Electric) (defunct) Mount Lowe Railway (partially converted to standard gauge) (U.S. National Register of Historic Places status) (defunct) Pacific Electric (standard gauge lines and dual gauge lines with standard gauge track also present) (all gauge trackage was dual-gauged with standard gauge trackage) (all dual gauge lines shared with Los Angeles Railway) (defunct) Poway–Midland Railroad (operating) San Diego Electric Railway (converted to standard gauge) (defunct) San Francisco cable car system (U.S. National Historic Landmark status) (operating) Southern California Railway Museum (standard gauge lines, gauge lines, and dual gauge lines with standard gauge track and gauge track also present) (operating)
Colorado	Denver Tramway (defunct) Henderson molybdenum mine (mostly defunct)
Maine	New Brunswick Railway (crossed into New Brunswick, Canada) (converted to standard gauge) (defunct)
Nebraska	Covington, Columbus and Black Hills Railroad (defunct)
New Jersey	Philadelphia and Atlantic City Railroad (converted to standard gauge) (defunct) Philadelphia and Atlantic City Railway (defunct) Pleasantville & Ocean City Railroad (converted to standard gauge) (defunct)
New York	City Island Railroad (defunct) Pelham Park Railroad Company (converted to a monorail) (defunct)
Oregon	Former Portland, Oregon city streetcar system (operated by various companies at different times, including the Portland Street Railway Company; the Portland Railway, Light and Power Company; and the Portland Traction Company), last lines closed 1950. Except for the line to Vancouver, Washington, the interurban lines of the same companies were standard gauge,[3] as were a few of the city lines (in the southeast part of the city).[4]
Pennsylvania	Mauch Chunk Switchback Railway (U.S. National Register of Historic Places status) (defunct) Pioneer Tunnel[5] (operating)

See also

• Narrow gauge railroads in the United States
• Heritage railway
• 2 ft gauge railroads in the United States
• 2 ft 6 in gauge railroads in the United States
• 3 ft gauge railroads in the United States
• Three foot six inch gauge railways in the United Kingdom

Notes and References

1. Book: A Study of Coal Mine Haulage in Illinois. H. H.. Stoek. J. R.. Fleming. A. J.. Hoskin. Engineering Experiment Station Bulletin. 132. University of Illinois. July 1922. 102–103. 22 June 2011.
2. Book: https://books.google.com/books?id=p4OXrgHYSk4C&pg=PA232. Raymond L.. Lowrie. SME Mining Reference Handbook. Excavation, Loading, and Material Transport. Society for Mining, Metallurgy and Exploration. 2002. 232. 9780873351751. 9 Oct 2012.
3. Book: Labbe, John T.. Fares, Please! Those Portland Trolley Years. 1980. The Caxton Printers. Caldwell, Idaho (US). 0-87004-287-4.
4. Book: Thompson, Richard M. . Portland's Streetcar Lines . 2010 . . 98. 978-0-7385-8126-2 .
5. http://www.pioneertunnel.com/ Pioneer Tunnel - official website