The new Bay Bridge did not show signs of corrosion for the first time in 2011, but continues to develop. The bridge opened in 2000 and was designed with a 150-year life span in mind, but engineers have begun to worry about its collapse. And the problem of bridges is increasing.

The cable is fixed to the east edge of the suspension span and housed in a room designed to protect the cable from water and sea air corrosion

Corrosion has been confirmed in laboratory tests and it is likely that the bridge is destined to damage the structure before the planned 150-year service life.

The combined effects of rust, weight pressure and continuous driving vibration and hydrogen will cause tiny cracks in the steel, which will gradually expand over time, eventually leading to fracture.

To date, engineering work to repair bridge corrosion is expected to cost tolls. Corroded poles and cables could bring tragedy to the bridge, but there are things you can do to prevent the bridge from collapsing.

Some bridge companies have turned to carbon fiber for their non-corrosive and high-strength qualities. Carbon fiber is 10 times stronger than steel and resistant to the corrosive effects of oxygen, water and chemicals, so it is used to build and repair more bridges.