: railway rack made
of parallel steel rails laid on wooden ties.
: set of steel bars placed end to end in two parallel lines.
: piece of steel with a head at one end and threaded
at the other, used in conjunction with a nut to connect the rails of
a railway track.
: curved piece of metal used to attach the base plate pad
to the rail.
: wooden plank laid perpendicular to and beneath the rails.
: piece of metal that supports the rail.
: piece of metal that holds a bolt in place.
: space left between the rails to allow expansion
when the temperature rises.
EN : Bridge
FR : Structure
ES : Estructura
A bridge is a structure built to span
a gorge, valley, road, railroad track, river, body of water, or any
other physical obstacle. Designs of bridges vary depending on the function
of the bridge and the nature of the terrain where the bridge is to be