Kachchi Dargah-Bidupur Bridge – Information & Status

Kachchi Dargah – Bidupur Bridge project in Bihar is a 9.75 km long 6 lane extra-dosed bridge over River Ganga under construction by Larsen & Toubro – Daewoo E&C for BSRDC.

The project’s foundation stone was laid in August 2015 and construction started in July 2017 with an aim to serve as an eastern bypass around Patna and reduce the load on Mahatma Gandhi Setu.

After it opens in 2024, the bridge will link north & south Bihar via National Highways NH-31 and NH-322. It will become the longest bridge over the Ganga River and the longest river bridge in India as well.

  • Total Estimated Cost: Rs. 3,115 crore
  • Project’s Total Length: 9.75 km (approx.)
  • Lanes: 6
  • Status: Under Construction
  • Deadline: 2023-end
  • Owner: Bihar State Road Development Corporation (BSRDC)
  • Project Model: Engineering, Procurement and Construction (EPC)

Location & Route

Kachchi Dargah – Bidupur Bridge’s site is located east of Patna – view satellite imagery on Google Maps


Kachchi Dargah – Bidupur Bridge will consist of 65 spans of 150m each

Status Update

Here’s a recent video uploaded on YouTube:

Tenders & Contractors

Package / RoleContractor
Structural Design EngineerPyunghwa Engineering Consultants
Authority EngineerAECOM – RODIC JV
Civil ContractorLarsen & Toubro – Daewoo E&C

Page last updated: March 24, 2024. Have a question or spot an error? Let me know here.