Steel is the most common, especially for suspension bridges. Concrete is used for lower bridges (and where little shifting will occur) because it is more resistant to the elements.
Mostly metal because it is strong and very stable
Concrete and steel .
Steel and concrete.
depends on the bridge type really. most are steel and concrete.
iron, steel, concrete, stone, wood, and composites are the most common materials used in bridge construction!
Aluminium and steel Alloys are the most common bicycle materials.
brick,mud,wood
Steel and concrete.
The most common types of bridges are the Beam and Arch Bridges.
Concrete and brick is the most common materials used in construction. Reinforcing metal rods and mesh, wood are also two important materials.
copper, aluminum and gold are the most common