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This line was a part of the old Pittsburgh and Western Railroad, originally a 3 ft (914 mm) narrow-gauge line created in the latter third of the 19th century from a merging of various earlier narrow-gauge lines. [2]
Some railways, primarily in the northeast, used standard gauge of 4 ft 8 + 1 ⁄ 2 in (1,435 mm); others used gauges ranging from 2 ft (610 mm) to 6 ft (1,829 mm). As a general rule, southern railroads were built to one or another broad gauge, mostly 5 ft ( 1,524 mm ), while northern railroads that were not standard-gauge tended to be narrow-gauge.
Track gauge conversion is the changing of one railway track gauge (the distance between the running rails) to another. In general, requirements depend on whether the conversion is from a wider gauge to a narrower gauge or vice versa, on how the rail vehicles can be modified to accommodate a track gauge conversion, and on whether the gauge conversion is manual or automated.
Hesston Steam Museum (2 ft (610 mm) gauge lines and dual gauge lines with 2 ft gauge track also present) (all 3 ft (914 mm) gauge trackage is dual-gauged with 2 ft gauge trackage) (separate 14 in (356 mm) gauge railway and separate 7 + 1 ⁄ 2 in (190.5 mm) gauge railway also present) (operating) Iowa: Burlington and Northwestern Railway (defunct)
Three foot gauge railways have a track gauge of 3 ft (914 mm) or 1 yard. This gauge is a narrow gauge and is generally found throughout North , Central , and South America . In Ireland , many secondary and industrial lines were built to 3 ft gauge, and it is the dominant gauge on the Isle of Man , where it is known as the Manx Standard Gauge .
The maximum height, width, and length of general Chinese rolling stock are 4,800 mm (15 ft 9 in), 3,400 mm (11 ft 2 in) and 26 m (85 ft 4 in) respectively, with an extra out-of-gauge load allowance of height and width 5,300 by 4,450 mm (17 ft 5 in by 14 ft 7 in) with some special shape limitation, corresponding to a structure gauge of 5,500 by ...
If the difference between the two gauges is large enough – for example between 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge and 3 ft 6 in (1,067 mm) – three-rail dual-gauge is possible, but if not – for example between 3 ft 6 in (1,067 mm) and 1,000 mm (3 ft 3 + 3 ⁄ 8 in) metre gauge – four rails must be used. Dual-gauge rail lines ...
Variable gauge axles were used for a while on the Grand Trunk Railway in the 1860s in Canada to connect 5 ft 6 in (1,676 mm) and 4 ft 8 + 1 ⁄ 2 in (1,435 mm) standard gauge without transshipment. Five hundred vehicles were fitted with "adjustable gauge trucks" but following heavy day-in, day-out use the system proved unsatisfactory ...