gauge railroads in the United States are historical railroads, or are commonly used in underground coal mines. In the past, this gauge had been a popular choice for urban mass transit systems. 3 ft 6 in gauge railroads include:

Railroads State/territoryRailroadArkansasArkansas 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) Fort Smith Street Railway (defunct) Cotton Plant Railroad (1879-1881, then converted to 3 ft gauge)(defunct) CaliforniaCahuenga Valley Railroad (defunct) East Santa Cruz Street Railway (defunct) 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) Horsecar system of Santa Rosa 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)ColoradoDenver Tramway (defunct) Henderson molybdenum mine (mostly defunct)ConnecticutDanbury Street Railroad (defunct)IllinoisCairo Street Railway (defunct) Citizens Street Railroad (Springfield) (defunct)IowaPeoples Street Railway (Centerville) (defunct) Muscatine Street Railway (defunct) Ottumwa Street Railroad (defunct) Olean Street Railway (defunct)KansasAbeline Street Railway (defunct) Chetopa Street Car Company (defunct) Consolidated Street Railway (Cottonwood Falls) (defunct) Mankato Street Railway (defunct) McPherson Street Railway (defunct) Newton City Street Railway (defunct) Salina Railway (defunct) Wichita City Railway (defunct)MaineNew Brunswick Railway (crossed into New Brunswick, Canada) (converted to standard gauge) (defunct)MichiganMuskegon Railway Company (defunct)MinnesotaDuluth Street Railway (defunct) Minneapolis Street Railway Company (defunct) Winona City Railway (defunct)MississippiEnterprise Street Railway (defunct)MissouriCarthage Horse Railway (defunct)NebraskaCovington, Columbus and Black Hills Railroad (defunct) Wymore and Blue Springs Railway (defunct)New JerseyPhiladelphia and Atlantic City Railroad (converted to standard gauge) (defunct) Philadelphia and Atlantic City Railway (defunct) Pleasantville and Ocean City Railroad (converted to standard gauge) (defunct)New YorkGlen Falls, Sandy Hill and Fort Edward Street Railroad (defunct) City Island Railroad (defunct) Pelham Park Railroad Company (converted to a monorail) (defunct)OhioBerea Street Railroad (defunct) Portsmouth Street Railroad (defunct) Zanesville and McIntire Street Railway (defunct)OregonFormer 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, as were a few of the city lines (in the southeast part of the city).PennsylvaniaMauch Chunk Switchback Railway (U.S. National Register of Historic Places status) (defunct) Pioneer TunnelPioneer Tunnel - official website (operating)TexasDenison Street Railway (defunct) Longview and Junction Street Railway (defunct)

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 3 ft 6 in gauge railways in the United Kingdom

References