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Bogibeel project
Why is it in news?
- Bogibeel rail-cum-road bridge, 4.94-km-long structure, India’s longest rail-cum-road bridge across the Brahmaputra set to be inaugurated by PM.
Bogibeel rail-cum-road bridge
- The bridge was under-construction for 16 years.
- A major challenge in the construction of the Bogibeel rail-cum-road bridge was finding the required skilled manpower, and convincing the personnel to work in the hostile conditions of Upper Assam.
- The 4.94-km-long structure, India’s longest rail-cum-road bridge across the Brahmaputra, will help the Indian armed forces move men and material to Arunachal Pradesh in a faster manner. It will also benefit the Indian Railways, as it will help reduce the distance between Assam and Arunachal Pradesh by 600 km.
- The design of the ₹4,857 crore bridge is such that, unlike a normal steel bridge, it did not require the use of a single nut or bolt.
- Bolts and rivets that are normally used in a steel bridge require periodic replacement due to shear failure over traffic loads.
- In the Bogibeel bridge, construction of trusses using welding has made the connection between components a permanent one, eliminating the above failures.
- The structure is India’s first fully-welded bridge, which will protect it from harsh weather.
Source
The Hindu