Anamaduwa Integrated Water Supply Project
PROJECT OVERVIEW
The Anamaduwa Integrated Water Supply Project (AIWSP) aims to enhance access to safe and reliable drinking water across the Anamaduwa, Kotawehera, Nawagaththegama, and nearby divisions, benefiting approximately 81,741 residents through 16,350 new connections.
THE PROJECT SCOPE
The Plant & Design-Build contract was awarded to UTA SETTAPI ELLIPSE ANAMADUWA (Spain) on November 5, 2014, with the contract commencing on February 7, 2017, for a duration of 36 months plus a 3-month O&M period.
- Construction of a new intake at Inginimitiya Reservoir (12,500 m³/day capacity).
- Establishment of a fully automated water treatment plant (11,000 m³/day).
- 61 km clear water transmission main, four elevated towers (capacities: 1,500 m³, 1,000 m³, 300 m³, and 300 m³), 328 km distribution network to serve target areas.
FINANCIAL DETAIL
Funding Source | Contribution % | Amount |
Instituto de Crédito Oficial (ICO), Spain | 70% | Rs. 4,633.03 million |
Hatton National Bank PLC (HNB), Sri Lanka | 30% | Rs. 2,050.24 million |
Government of Sri Lanka (GOSL) | Local Contribution | Rs. 1,941.90 million |
Total Project Cost |
| LKR 8,625.17 million |
THE COVERAGE AREA OF ANAMADUWA INTEGRATED WATER SUPPLY PROJECT
WATER DEMAND ANAMADUWA INTEGRATED WATER SUPPLY PROJECT
Item | 2009 | 2015 | 2020 | 2025 | 2030 | 2035 |
Population Served in Phase 1 | 61,497 | 65,674 | 69,368 | 73,270 | 77,390 | 81,741 |
Domestic Water Demand / (m3/d) | 6,150 | 6,567 | 6,937 | 7,327 | 7,739 | 8,174 |
5% Non Domestic Demand / (m3/d) | 308 | 328 | 347 | 366 | 387 | 409 |
Provision for NRW 20%/ (m3/d) | 1,615 | 1,724 | 1,821 | 1,923 | 2,032 | 2,146 |
Demand Phase 1 (m3/d) | 8,073 | 8,619 | 9,105 | 9,616 | 10,158 | 10,729 |
CONTRACT TERMINATION
Project implementation was severely affected by the 2022 economic crisis and the suspension of foreign loan payments, leading to the halt of funding from ICO Bank (Spain) and HNB (Sri Lanka) on May 7, 2022. Consequently, the contractor ceased operations in June 2022 and issued a termination notice on August 31, 2022.
Following legal review, the contract was officially terminated on May 26, 2023, under Clause 15.2 of the General Conditions of Contract. The employer encashed the Advance Bond and assumed responsibility for critical project completion.
CURRENT STATUS
- At Termination: 75% physical and 64% financial progress (including advance payment).
- Post-Termination: The NWSDB prepared an estimate of LKR 9,488.03 million for the remaining work. Due to limited funds, only partial completion is being pursued using the encashed Advance Bond of LKR 933 million.
- By September 30, 2025, the project had achieved 79.03% physical progress and 64.51% financial progress.
- Future Plan: The remaining works are being outsourced to local contractors to expedite completion. The NWSDB Prepared total cost estimate of LKR 3,640.90 million for essential balance works for the minimum functioning of the project, and fund allocation has made for 2026 – 2028 under the capital budget.
Progress of the Project
Pipe Laying
Tower Construction
