Dhaka, Nov. 8 -- It took long 10 years to complete the construction of a bridge. And the bridge will remain in good condition for more than 200 years! Sounds unbelievable? That is the story goes for the Akashi-Kaikyo Bridge, the longest suspension bridge in the world.

The beautifully constructed bridge connects the major port city of Kobe and Awaji Island, both in Hyogo Prefecture in western Japan with a central span measuring a record 1,991 metres.

The total span of the bridge, constructed by adopting Japanese own techniques and newly developed technologies, is 3,911m in length.

In order to do appropriate management, new technology for the maintenance has been researched and developed. One of them is "Dry air injection system" that pr...