Bridge (cross section): construction that allows automobile to travel between two points separated by an obstacle.
Parapet: parapet constructed to prevent people from falling off a bridge.
Sidewalk: raised passage at the side reserved for pedestrian traffic.
Deck: platform of a bridge.
Assembled with bolts: construction using nuts and bolts.
Stiffening beam: longitudinal piece that hold an iron cable.
Longitudinal stiffener: mechanism used to tighten an iron cable.
Pylon: generally tower-like support.