By A Mystery Man Writer
Steel is a top material for bridges and has been used for centuries. Its strength and permanence make it an ideal material for bridges.
Steel as a Material for Bridges – IspatGuru
history of bridges
Bridges - American Iron and Steel Institute
Truss Bridge - How Bridges Work
How aluminium is competing with steel on long suspension bridge girders
Photos of the Last Incan Suspension Bridge in Peru
Icons of the Built World 5 Most Famous Bridges
World's longest suspension bridge opens in Turkey
Materials Used in Bridge Construction - Civil Engineering Portal
STRUCTURE magazine Cable- Stayed Bridges
Bridges: Structures and Materials, Ancient and Modern
Building Materials for Bridges - Nature Bridges
Brooklyn Bridge - Wikipedia
New York's Brooklyn Bridge is an engineering marvel