DESIGN OF 21KM BRIDGE OVER BRAHMAPUTRA AT DHUBRI-PHULBARI

Client
AECOM

Location
Assam & Meghalaya

Service CategoryGeotechnical SectorHighway Engineering

Connectivity in the Northeastern region of the country is set to get a boost with construction of more bridges connecting one state to another, primarily Assam and Meghalaya. In probably next 5 years Dhola-Sadiya bridge will lose its 'title' to Dhubri-Phulbari bridge, but BPC INDIA holds the title for executing the geotechnical engineering for both the projects, in two completely different geomorphological condition on the same river of Mighty Brahmaputra.

Assam is the gateway to the landlocked NE region. Thus, its railway and road network has significant strategic importance for the integration of the lagging NE region with the country‘s economy.

As a special priority, The Ministry of Road Transport & Highways /National Highways and Infrastructure Development Corporation Limited (MORTH)/ (NHIDCL) awarded the consultancy work to M/s AECOM Asia Company Limited for the preparation of Detailed Project Report for “Construction of a two/four lane Bridge including approaches over the River Brahmaputra Between Dhubri (North Bank) and Phulbari (South Bank) in state of Assam/Meghalaya on NH-127B (Length: 21 km) on EPC Mode JICA".

As a sub-consultant M/S BPC Consultant India Pvt. Ltd. was delegated by AECOM Asia Company Limited to conduct field investigation, sampling and laboratory testing for preparation of Geotechnical Investigation Report for the Proposed “Construction of a two/four lane Bridge including approaches over the River Brahmaputra Between Dhubri (North Bank) and Phulbari (South Bank) in state of Assam/Meghalaya on NH-127B (Length:21 km).

This strategic bridge will abridge the state of Assam and Meghalaya with the rest of the nation reducing detouring road distance by about 250 kms from Dhubri to Phulbari. The overall objectives of the exploration were to study and evaluate the stratigraphy of the said project locations and to obtain Geotechnical parameters of the subsurface formations for design and construction of foundation for the proposed 20 km length two/four lane Bridge including approaches over the River Brahmaputra Between Dhubri (North Bank) and Phulbari (South Bank) in state of Assam/Meghalaya on NH-127B

The investigation was carried out in the monsoon season under dangerous conditions, which was the main challenge faced.