Manampitiya Bridge is the second longest bridge in Sri Lanka. Before the Kinniya Bridge was declared open in 2009, it was the longest bridge in Sri Lanka. The bridge has a length of 302 metres. It comprises two decks, an early-twentieth-century steel bridge and newly built bridge.The older bridge is used for railway purposes, and the new one carries two lanes of the highway. The steel bridge is 291 metres long and less than 5 meters in width. The most significant feature of this bridge is the railway track running right on the centre of the road. The bridge is operated by the Sri Lankan Army, and two Army checkpoints on both sides control both rail and motor vehicle traffic.
The bridge is the only access point between Eastern Province and Central Province for about 80 kilometres of the Mahaweli River. The Mahaweli River is a 335-kilometre long river, ranking as the longest river in Sri Lanka. Its drainage basin is the largest in the country and covers almost one-fifth of the total area of the island.