India's Longest Bridge: The Dhola-Sadiya Bridge

the dhola sadiya bridge
The Dhola-Sadiya Bridge

  • On 26th May 2017, Indian Prime Minister Narendra Modi will be inaugurating India’s Longest Bridge, Dhola Sadiya Bridge 
  • The bridge over Brahmaputra River is 9.15 kilometre long and 12.9 metre wide connecting Dhola and Sadia Ghats. 

locaton of Dhola-Sadiya Bridge

  • The Dhola-Sadiya Bridge is 3.55 km longer than the Bandra Worli Sea Link in Mumbai, making it the longest bridge in India.

Interesting technical features of the project:

  • Length: 9.15 km
  • Width: 12.9 m
  • No. of spans: 183 (50 m each)
  • Project Design Speed is 100 kmph.
  • 1.7 m & 1.5 m diameter, 40 metre long bored cast in situ piles were used for foundation of main bridge and viaduct.
  • Concrete: M50 grade pre-stressed concrete
  • Precast segments were made using Hyper-plasticisers to achieve early strength.

Construction of the Bridge:

  • Construction began in 2011 under the umbrella of the Ministry of Road Transport and Highways in Public Private Partnership (PPP) with Navayuga Engineering Company Ltd, Hyderabad.
  • The bridge was planned to become operational from December 2015, but the construction works was delayed.
  • The project cost around 876 crore rupees and took around 4.5 years to complete


Benefits of the Bridge:

  • The bridge will be one of the crucial link in this Region which will not only give a relief to the existing transport facilities but will also invites various developmental schemes. Increased developmental activities will increase the vehicular movement.
  • It will promote tourism in the region.
  • This project  will serves important logistics for Military personnel for Indo-China border at Arunachal Pradesh.
  • Reduction in travel time.