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The infrastructure owning company in the UK (Railtrack), has adopted UIC60 rail (which weighs 60 kg/m or 125 lb/yd) as its standard for high speed lines. The present standard is equivalent to the UIC 54 rail, which weighs about 113 lbs/yd or 54 kg/m. Did you know, there are 2,400 sleepers (ties) in a mile of track?

In the US, rail weight varries from 80-90 lb/yd (pounds/yard) in small yards to 100-110 lb/yd on light duty track and between 130 and 141 lbs on heavy duty track. Rail of 141 lbs is the new main line standard. The Pennsylvania RR used a special 155 lb/yd rail, which was the heaviest ever rolled for mainline operations. Some of it is still in place with 8-bolt joints instead of the more usual 6-bolt joints. It is over an inch taller than comparable 141 pound rail. Highest price steel rail costs $700 a ton (2000lbs). A 133 pound rail costs $46.55 per yard (0.92 m.).

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