First, let me correct your question
Which is the biggest bridge in Bangladesh?
Answer:
The Padma Bridge is the largest bridge in Bangladesh. It is a multipurpose road-rail bridge across the Padma River, one of the major rivers in Bangladesh. The bridge connects the southern districts of Madaripur and Shariatpur with the southwestern districts of Munshiganj and Narayanganj, including the capital city of Dhaka. The construction of the Padma Bridge is a significant infrastructure project for Bangladesh, aiming to improve transportation connectivity and facilitate economic development in the region.
