Steel is a top material for bridges and has been used for centuries. Its strength and permanence make it an ideal material for bridges.
Types of Steel Bridges - American Iron and Steel Institute
history of bridges
What materials were used to build bridges prior to steel and concrete being invented? - Quora
4 Best Materials for Building Bridges - BuilderSpace
Materials Used in Bridge Construction - Civil Engineering Portal
Structural Stainless Steel in Bridges - Stainless Structurals
The introduction of steel stimulated the development of new bridge
Used for centuries the best material for bridges is steel
Arch Bridge Facts: Lesson for Kids - Lesson
7 Types of Bridges Every Engineer Should Know About - Enerpac Blog
Role of steel in construction: Why steel is a better raw material
How draw bridge is made - material, history, used, structure, History, Raw Materials, Design
