Melamchi Water Supply Project Explained

Country:	Nepal
Location:	Melamchi, Bagmati Province
Launched:	1998
Closed:	2021

Melamchi Water Supply Project (MWSP) is a project to supply drinking water to Kathmandu Valley by diverting 170000000l of water per day. The project started in 1998 and completed in 2021. The intake of this project is located in Melamchi, Nepal. Ministry of Physical Infrastructure and Transport (Nepal) is the executing agency for the Project and Melamchi Water Supply Development Board is the implementing agency.^[1]

This project was mainly financed by Japan and the Asian Development Bank. About 57% of the project cost was loan, 16% was grant and 26% was financed by the Nepalese government.^[2]

Project description

The intake of the project lies in the Melamchi valley in the gorge below Ghwakan, just upstream of the confluence of Melamchi River and Ribarma Khola. The main structure is the diversion weir, river-training structures, and sediment exclusion basin. A gravity concrete weir is 5mto7mm (16feetto23feetm) high with the crest at an elevation of 1425m (4,675feet) asl. The control system and the sediment exclusion basin have a design capacity of 6m3/s. The sediment exclusion basins are double-chambered with a length of 80m (260feet) each.^[3]

The tunnel intake is at an elevation of about 1416m (1,365feet) and the outlet is about 1408m (4,619feet) asl.The length of the tunnel from the intake to the water purification facilities in Kathmandu Valley at Sundarijal is about 26km (16miles). The tunnel is longest water supply tunnel of South-Asia and second longest water supply tunnel in Asia. The tunnel is being excavated from Adits at Ambathan, Gyalthum, Sindhu, and Sundarijal Waterfall. The diversion flow of 6m3/s. The tunnel has a cross-sectional area of 12.7m2 and lined with shotcrete in most of the section; concrete lining is done only in the weak rock formation. The tunnel is excavated by drill and blast method. The geology of the areas consists mainly of gneiss with mica schist and laminated quartzite.

The distribution work has nine service reservoirs at various locations in the Kathmandu (Mahankalchaur, Bansbari, Paani Pokhari, Balaju, Khumaltar, Arubari, Tigni, Katunje and Kritipur). The water from Sundarijal to Service Reservoir is supplied by a Bulk Distribution System (BDS). The distribution to households is done by a network of pipes about 670km (420miles) long. About 540km (340miles) of sewerage network will also be upgraded in this project.^[4]

Delays

The project had a serious history of delays. Some are mentioned below,

• In 2007 August, the ministry of physical planning, Hislia Yami, cancelled the contract awarded to UK company Severn Trent claiming that Severn Trent did not have a sufficiently strong international track record.^[5]
• In September 2012, the contract with China Railway 15 Bureau Group Corporation was terminated.^[6]
• In 2018, the deadline was extended to mid-February 2019 with CMC, the contractor.^[7]
• In 2019, the contract with Cooperativa Muratori e Cementisti di Ravenna (CMC) was terminated over payment dispute.^{[8] [9]}

Accidents

• 2020-July 14: During testing of the tunnel, the breaking of bulkhead gate caused flooding in the tunnel resulting in the death of two staff.^{[10] [11]}
• 2021-June 15: Due to monsoon flood, the headworks of the project at Ambathan area was blocked by flood. Temporary structures such as construction camps and Bailey bridges swept away.^[12] Eight workers including three Chinese, three Indians and two Nepalis were washed away by the flood.^[13]

Corruption

• In 2005, Prime Minister Sher Bahadur Deuba was charged for corruption by the Royal Corruption Control Commission.^[14] The case was terminated by the Supreme Court considering it as an unconstitutional move by King Gyanendra.^[5]
• In 2006, Sweden withdrew its funding of this project over corruption issues.
• In 2019, the contractor Cooperativa Muratori e Cementisti di Ravenna (CMC) alleged two senior Nepali bureaucrats Gajendra Kumar Thakur, a former secretary at the Water Supply Ministry, and Surya Raj Kadel, executive director of the Melamchi Water Supply Development Board asked for a cut of 3% of payment on NPR 300 million payment. This issue led CMC to break the contract with the government.^[15]

See also

• Department of Water Supply and Sewerage Management

References

27.8334°N 85.5771°W

External links

• Official website
• KUKL

Notes and References

1. Web site: Project Description Melamchi Water Supply Development Board. 2021-03-10. www.melamchiwater.gov.np. 17 June 2020. https://web.archive.org/web/20200617051815/http://www.melamchiwater.gov.np/about-us/melamchi-ws-project/project-description/. live.
2. Web site: Sweden withdraws aid commitment to Nepal water project - Nepal. 2021-03-10. ReliefWeb. en. 22 June 2021. https://web.archive.org/web/20210622102716/https://reliefweb.int/report/nepal/sweden-withdraws-aid-commitment-nepal-water-project. live.
3. Ghanashyam, David Lees, and A. Niaz. “The Melamchi Water Supply Project,” 2015
4. Web site: KUKLPID. 2021-03-10. www.kuklpid.org.np. 6 August 2020. https://web.archive.org/web/20200806191319/http://www.kuklpid.org.np/Home/Introduction. live.
5. Book: Global Corruption Report 2008 . 2008 . Transparency International.
6. Bhushal, Ramesh, July 17, and 2013. “China-Backed Projects Create Controversy in Nepal.” The Third Pole (blog). Accessed June 20, 2020. https://www.thethirdpole.net/2013/07/17/china-backed-projects-create-controversy-in-nepal/ .
7. Times, Nepali. “Melamchi Delayed by Government Extortion.” Accessed June 19, 2020. https://www.nepalitimes.com/from-the-nepali-press/melamchi-delayed-by-government-extortion/ .
8. “The Rising Nepal: Lingering Pipe Dream.” Accessed June 20, 2020. http://therisingnepal.org.np/news/34415.
9. “PressReader.Com　世界の新聞.” Accessed June 20, 2020. https://www.pressreader.com/nepal/peoples-review-9d48/20190717/281698321328402 .
10. Web site: Two employees of Melamchi Drinking Water Project missing in tunnel accident. 2020-07-24. 16 July 2020. https://web.archive.org/web/20200716041954/https://kathmandupost.com/province-no-3/2020/07/14/two-employees-of-melamchi-drinking-water-project-missing-in-tunnel-flooding. live.
11. Web site: Melamchi Drinking Water Project's tunnel bursts; two swept away. The Himalayan Times. 2020-07-24. 2020-07-15. 17 July 2020. https://web.archive.org/web/20200717225220/https://thehimalayantimes.com/nepal/melamchi-tunnel-bursts-two-swept-away/. live.
12. Web site: Melamchi project headworks buried in mud, extent of damage unknown. 2021-06-22. 18 June 2021. https://web.archive.org/web/20210618031645/https://kathmandupost.com/national/2021/06/18/melamchi-project-headworks-buried-in-mud-extent-of-damage-unknow. live.
13. Web site: Machamasi. Amit. Nepal valley suffers quadruple disaster. 2021-06-22. 22 June 2021. https://web.archive.org/web/20210622102719/https://www.nepalitimes.com/banner/nepal-valley-suffers-quadruple-disaster/. live.
14. Department Of State. The Office of Electronic Information, Bureau of Public Affairs. “Conviction of Former Nepalese Prime Minister.” Accessed June 20, 2020. https://2001-2009.state.gov/r/pa/prs/ps/2005/50297.htm .
15. “Nepali Bureaucrats Regularly Asked for ‘Their Cut’ from Melamchi Contractor, Italian Officials Say.” Accessed June 19, 2020. https://kathmandupost.com/investigations/2019/03/21/nepali-bureaucrats-regularly-asked-for-their-cut-from-melamchi-contractor-italian-officials-say .