Sunkoshi Marin Diversion Project (सुनकोशी मरिन डाइभर्सन आयोजना) is one of the

National Pride Projects National Pride Projects are a set of infrastructure projects by the government of Nepal based on the proposal by the National Planning Commission. Projects Irrigation Projects * Babai Irrigation Project * Bheri Babai Diversion Multipurpose Proj ...

being developed by

Ministry of Energy, Water Resources and Irrigation (Nepal) The Ministry of Energy, Water Resources and Irrigation () is a governmental body of Nepal that governs the development and implementation of energy including its conservation, regulation and utilization. It furthermore develops operates elect ...

. The project got status of National Pride Projects in 20 January 2020. The project is an inter-basin transfer project to transfer water from

Sunkoshi River The Sunkoshi, also spelled Sunkosi, is a river that is part of the Koshi or Saptkoshi River system in Nepal. Sunkoshi has two source streams, one that arises within Nepal in Choukati, and the other more significant stream that flows in from Ny ...

to the Marin Khola, a tributary of

Bagmati River The Bagmati River flows through the Kathmandu valley of Nepal, separating the cities of Kathmandu and Patan, before flowing through Madesh Province of southern Nepal and joining the Kamla River in the Indian state of Bihar. It is considered ...

. The flow will be discharged to the Bagmati Irrigation System to irrigate additional 122,000 ha of land in

Rautahat Rautahat is a VDC located in Saptari district of Nepal. At the time of the 2011 Nepal Census it had a population of 3612 people living in 660 individual households. Jung Bahadur Rana Jung Bahadur Rana, , was born Bir Narsingh Kunwar (1817-18 ...

, Dhanusha, Mahottari,

Sarlahi Sarlahi ( ; Maithili: सर्लाही), a part of Madhesh Province, is one of the seventy-seven districts of Nepal. According to new laws, a combination of more than two or four villages makes a municipality, which covers an area of and ...

and Bara. The main obective of Sunkoshi Marin Diversion Multipurpose Project (SMDMP) is to meet the discharge deficit in the churiya region of mid Nepal. The project is expected to increase recharge and irrigation especially in the valley of Marin river. It will also contribute to increase the flow contributed by the Bagmati River during the dry season. The design flow of the project is 67 m3/s. The intake has a 12 m high diversion dam in Sunkoshi river. The flow is transferred via 13.3 km long tunnel. The project also has a power station to generate 38.62 MW of electricity. The powerhouse is located in

Kamalamai Kamalamai (former name: Sindhulimadi; ) is a municipality in Sindhuli District, in the Bagmati Province of central south Nepal. At the time of the 2011 Nepal census it had a population of 39,413 people in 9,304 households. The city is located in t ...

municipality. The project cost is NPR 37.2 billion for irrigation and NPR 46.19 billion for hydro-electricity. The tunnel got break through on 8 May 2024 despite adverse geological condition. In November 2023 the drilling got stuck for a short period of time due to bedded schist, rock joints and cracks which was altered.

References

Irrigation in Nepal Interbasin transfer National Pride Projects {{Nepal-stub

See also

References