Re: Tie Size and Narrow Gauge track

Tie size and spacing is figured by axle loading of the largest motive power and rolling stock plus the rating of rail. In two-foot gauge, if the line has a 30 ton locomotive and the mainline has 60 lb rail the ties were cut to 5 foot and measured 6X8". Spacing was 2 foot on center. The same railroad having lighter rail on sidings would space the ties closer together after the switch. Grade location and ballast come into play as well. An area with soft soil or wet conditions needs more sub ballast compacted and possibly longer ties for better support. Three foot gauge is similar except the numbers are higher. The weight of a K36 and the size of rail determine the size of ties, use of tie plates and amount of ballast. Tamping and lining is important no matter the gauge. The C&TS is a good example of a well ballasted mainline. It's one of the best 3 foot gauge railroads in the country with much track work done in the last 15 years.