CATPYL

1. power transmission pylon/pole: a vertical construction consisting, for example, of a steel framework or of pre-stressed concrete, to support a power transmission cable or line. (adapted from Digital Geographic Information Standard - DIGEST FACC 1.2)
2. telephone/telegraph pylon/pole: a pylon or pole used to support a telephone or telegraph line. (Digital Geographic Information Standard - DIGEST FACC 1.2)
3. aerial cableway/sky pylon: a tower or pylon supporting steel cables which convey cars, buckets, or other suspended carrier units. (adapted from Digital Geographic Information Standard -DIGEST FACC 1.2)
4. bridge pylon/tower: a tower, abutment or pylon from which a bridge deck is suspended. (adapted from Digital Geographic Information Standard - DIGEST FACC 1.2)
5. bridge pier: a support in the form of a pillar or pier for the spans of a bridge. (adapted from Digital Geographic Information Standard - DIGEST FACC 1.2)