Muhuri River one of the trans-boundary rivers of Bangladesh. The river takes its rise on the Lushai Hill of Tripura in India and enters Bangladesh through parshuram upazila of feni district after flowing over the hilly regions of India. As such the river is wild in nature and often causes flash floods. At some places it demarcates the boundary between India and Bangladesh and falls into the bay of bengal after dividing the Feni and the Chittagong district.
Before 1975, the Indian government constructed an impermeable spur on the river to save the Belonia town of Tripura State from the erosion of the river. But afterwards it has been decided in a meeting of joint river commission that none of the countries can construct spur or groyen on the river. The islands or chars formed in the Muhuri river are partly controlled by India and partly by Bangladesh.
The Muhuri is not wide enough and it is only 150 to 200 metres wide. But the width increases towards the sea. The depth of the river is also very little and people can cross it on foot during the lean period. Close to the sea, the river is under tidal influence.
There is a closure dam on the river about 4 km upstream from the estuary for irrigation purpose and a 20-vent regulator has also been constructed. During high tide, the dam along with the regulator controls the influx of saline water. [Masud Hasan Chowdhury]
See map in chittagong region river system.