SCOPE OF WORK:
Meghna Bridge, situated on a 25 km stretch of Dhaka-Chittagong Highway (NH1) is a pre-stressed concrete bridge with central hinges that opened for in 1991. Abnormal vibration and sound were noticed in Meghna Bridge during the passage of heavy vehicles over it. Investigation revealed that the central hinge bearings and expansion joints of Meghna Bridge were damaged. We accepted the project for rehabilitation
DESCRIPTION OF WORK:
The rehabilitation work of the 930 meter-long Meghna Bridge & 1410 meter long Gumti Bridge involved the temporary solution of 173 meter expansion joint with long lasting type joint.
The Challenges
The most challenging aspect of this project was time, as the bridge closure time limit compelled us to maintain a working time between 12.00 am to 6.00 am. We also had to manage high strength concrete designed mix to accommodate the short working time.