Bogibeel bridge is a 4.94 km combined road and rail bridge over the Brahmaputra river in the northeastern Indian state of Assam. It is situated between the Dhemaji district and Dibrugarh district and is known as the longest rail-cum-road bridge in India. It is also Asia’s 2nd longest rail-cum-road bridge and the fifth-longest bridge in India. The bridge has a double rail line on the lower deck and a 3 lane road on the upper deck.
The Bogibeel bridge is situated in an earth-prone area which is why the construction of the bridge consists of composite welded steel-concrete beams/trusses that can withstand an earthquake of magnitudes up to 7 on the Richter scale
Encardio-rite was entrusted with the supply of sensors, dataloggers, geodetic targets and weather station. It was also responsible for the installation of instruments, and monitoring with dataloggers and real-time web-based data management system.
Instrumentation was required for real-time monitoring of the load test being conducted. Strain gauges, thermocouples, displacement sensors were installed to test the strain developed at full load, a variation of temperatures and displacement of the bearings of the bridge span. Encardio-rite was entrusted with the complete monitoring works.