The bridge lies in the state of Assam, but this location is usually referred to as upper Assam as it is far away from Guwahati and bordering China. The nearest airport is Dibrugarh. Then there is a drive of 65km into the north, passing through an important town Tinsukiya, on the way.
Dhola is on the southern side of the river while Sadiya is on the north. The bridge crosses River Lohit. Here again some explanation is needed. River Lohit flows in from China. There are two other rivers (river systems) that flow in similarly. They are the Debang river system which is a network of river channels and the Siang river system. These three join together downstream of the present Dhola-Sadiya location and is thereafter called River Brahmaputra.