Opinion
Solution to water deficit in NWP and NCP
by BANDULA KENDARAGAMA
Former Section Engineer (Dam), Kothmale Hydro-Power Project and International Dams Consultant, Melbourne, Australia
(Based on an interview with Srilal D. Perera (Construction Project Manager), Melbourne, Australia)
Sri Lanka is now a middle-income country with consistently high economic growth over the recent years. The government’s public investment plans include several development plans and projects for the coming years, to further accelerate economic growth and promote social and human development.
Being a tropical island located close to the equator, Sri Lanka is highly susceptible to adverse effects of climate change. The Global Climate Risk Index (CRI) 2018, which indicates how countries have been affected by the impacts of weather-related loss events (storms, floods, earthquakes, heat waves etc.,) ranks Sri Lanka as the fourth among the most affected countries of the world. This is an alarming situation. Adverse effects of climate change are evident from the severe and long duration droughts as well as severe flooding occurring almost every year in several parts of the country. Water availability is becoming more variable and uncertain, even as demand for bulk water supplies for agriculture, new industries and tourism and clean water for drinking increases. Studies confirm that these impacts are likely to exacerbate, and the wetter areas of the country would eventually become wetter, and the drier areas drier and drier.
The government of Sri Lanka has taken steps to address these challenges with the successful completion and commissioning of Moragahakanda and Kalu Ganga reservoirs, and the ongoing and planned construction of dams and associated feeder canals, hydraulic facilities, Hydro Power enhancements to comply with Paris Convention that His Excellency the President of Sri Lanka has consented under renewable energy promotion in Sri Lanka; as well as, other water resources development investments envisaged under the Public Investment Plan (PIP). The Government is also implementing several other programs and investments to mitigate flooding and flood damages in several river basins which are vulnerable to flooding.
Planning and investments in additional water storages, and transfer infrastructure to transfer water from water surplus river basins of the wet zone to water deficit river basins, will be a major priority to meet the growing demands and challenges of climate change impacts. Additional investments will be required on a priority basis for developing water resources to provide potable water supplies to people and areas currently affected by chronic kidney disease.
These new investments on water resources will demand diligent planning, protection, management and allocation of water for multiple uses and users within river basin context. As the water infrastructure expands through additional infrastructure bringing water to water deficit geographic areas, to new and current groups of farmers, large and small industries, urban and rural drinking water consumers, mechanisms will be required for diligent planning, allocation, and monitoring of bulk water supplies from the major water conveyance systems beyond the mandate and the role played by the existing Water Management Secretariat (WMS) of the Mahaweli Authority of Sri Lanka (MASL).
The Project
With the present climatic uncertainty, North Western Province (NWP) and the North Central Province (NCP) are among the most affected areas without reliable supply of water for irrigation, about 40,000 ha, and ensuring domestic water supply to families in such provinces. Major diversions of this water are supplied through the Polgolla tunnel (875 Million Cubic Meters (MCM) / Year) for both the seasons of Yala and Maha. This volume of diversion is entirely depending on the storage above the Polgolla barrage. At present only the Kotmale reservoir with 174 MCM supports to regulate this water. However, the Polgolla tunnel is functioned only with 60% of its capacity, and the tunnel has additional capacity to divert around 400 MCM / Year, if the upstream storage is available.
Therefore, a proposal for increasing the height of the Kotmale dam to increase the retention capacity by additional 250 MCM would be one of the feasible proposals to solve the water deficits in NWP and NCP. Also, the increased head and volume would boost the hydro-power generation by about 20%, once the supplementary water starts to pass through Kotmale and Ukuwela power stations.
The Kotmale Hydropower Project was one of the first projects taken up under the Accelerated Mahaweli Development Program (AMDP). It was the most upstream among those headworks in the Mahaweli river basin, and exploited the hydropower potential of Kotmale Oya, a major right bank tributary of the Mahaweli Ganga. The Kotmale dam site is at Kadadora, located about 6.6km upstream of the confluence of Kotmale Oya with Mahaweli Ganga, where the river forms a narrow and deep valley with steep banks. The powerhouse is underground and situated in the belly of the Atabage mountains, about 6.4km downstream of the Kotmale Oya – Mahaweli Ganga confluence.
The basic elements of the Kotmale Hydro-Power Project are a concrete face rockfill dam (87m high and 600m long) having the active storage capacity of 174 MCM and a tunnel system leading to 201MW power plants with outfall to the Mahaweli Ganga. The primary function is the generation of electric power. Additional benefits arise from an increase in the amount of irrigation water available at the Polgolla diversion, as well as mitigation of floods in the Gampola area as a result of the regulation of flows in the Kotmale Oya. The Project construction work commenced in 1979 and was completed in 1985, with financial assistance provided by the Government of Sweden.
The dam has been provided with basic facilities for future rising, to three alternative levels 715m, 725m and to 735m above the sea level (capacity of 370 MCM at 728m FSL). The provision for the extension of foundation from the downstream face, and the land around the reservoir rim up to 735 m elevation, have already been acquired since the beginning to enable the future upgrading.
However, the raising of Kotmale dam would be an engineering challenge and need in depth study to check the stability of the Concrete Face Rockfill Dam (CFRD), during and after construction, instrumentation, reliability of foundation and geology, supplementary grout curtain, spill gates and chute with elevated ogee (Flip bucket), added pressure head to tunnels, height of the surge shaft and power station equipment etc., Also, the heightening of the dam shall not affect the ongoing annual supply of water to NCP, as it would generate critical social problems and, therefore, the live construction method statement with the active storage of water available for downstream use would be the most practical approach.
Therefore, a comprehensive feasibility study shall be originated to find a solution for the critical water deficit in NWP and NCP, and for harnessing addition of renewable energy, considering above referred to facts at earliest possible.
The original consultant of this project was Sir William Halcrow & Partners (Halcrow Water) of the United Kingdom (UK); and Skanska (Sweden) with joint collaboration of Central Engineering Consultancy Bureau (CECB) , then local Consultant to the Mahaweli Ministry, had been involved in a preliminary feasibility study, the project design and supervisions during the first construction phase of this development in the year 1979 to 1984 period. Hence, the re-engagement of previously involved qualified consultants would be highly recommended for future studies and development, as well as the previous data, knowhow and experience that retained with them would be essential for accomplishing this challenging task.
In addition, consideration should be given to appointing a Panel of Experts from local & overseas professional bodies, who have extensive knowledge and experience in CFRDs, gates and valves, geology, geotechnical engineering, instrumentation and dam safety.
Consideration should be given to employing a minimum number of expatriate engineers and a maximum number of local engineers.
Recommendations
Following studies are needed to execute to enhance the project more feasible to meet the challenges in climate change, and the supply of more renewable hydro-energy, especially from the power plants newly built in Mahaweli Basin from the Kelani water.
1. Raising Kotmale Dam (15, 25, 30m). Note all lands are already acquired and there is no social impact;
2. Check the possibility of building dams at locations 11, 12, 14 etc., in Master Plan above Polgolla near Ginigathhena (Koladeniya, Carolina, Trapalga, Rosalla, to increase the retention above Polgolla, as the water about 1,000 MCM / Year is spilling down Polgolla during flood;
3. Enhance the capacity of Kandalama-Huruluwewa Canal to carry about 200 MCM / Year, at a rate of 10m3/second;
4. Built a new tunnel from Bowatenna Reservoir to Dambulu Oya where the capacity is 30m3/second. This would enhance the deficit of water in NWP (150 MCM / Year) and the water need in Anuradhapura;
5. Expand the capacity of power generation in Ukuwela Powerhouse adding one unit; and
6. Revisit the canal availability from Kalawewa to Nachhaduwa, Tissawewa and Basawakulana etc. via Yoda Ela.
7. A supplementary study to check the availability of water from Kelani Basin to Mahaweli Basin would further enhance this proposal.
The writer has B.Sc. Eng. (Hons), M.Eng. (Structural Engineering & Construction), MASCE, MIE Aust, CPEng NER, APEC Engineer, IntPE(Aus).
Opinion
Microfinance and Credit Regulatory Authority Act 2026 fails all affacted communities
The Microfinance and Credit Regulatory Authority Bill was passed into law by the Parliament of Sri Lanka on 4 March. According to Deputy Minister of Finance and Planning Dr. Anil Jayantha, the main object of the Act is to establish an Authority to “license and supervise the under-regulated microfinance and moneylending sector, aiming to protect borrowers from exploitation and ensure financial stability”.
However, the Yukthi Collective is saddened and disappointed that a government which pledged to take “measures to alleviate the burden of predatory microfinance loans with high interest rates on women” (NPP Manifesto, 2024: Page no. 44), will now add to their unbearable weight.
The new Act, as virtually all legislation enacted by Anura Kumara Dissanayake’s government, is a legacy of the anti-working class Ranil Wickremesinghe regime. It evades the root causes of the microfinance trap, and ignores debt justice for women borrowers.
It fails in understanding the connections between household debt and public debt. The vicious cycle of national debt is sustained by lack of growth in economic activity because of poor access to affordable credit.
It fails to make equal representation of women mandatory in the new Authority. If representatives of women borrowers and their self-run organisations are not present in the regulatory body, how will its members know of their lived experiences and make decisions that value women’s unpaid and paid contributions to sustaining life?
System Change
Millions of indebted households voted for the NPP with hope and expectation of ‘system change’. But instead of honouring its manifesto promise to them, the government has let them down in the law-making process; as well as the focus and substance of the new Act.
It is appalling that NPP parliamentarians, including some of its women members, appear not to have read and understood the bill they enacted into law, nor spoke to the rural credit community providers in their electorates for their views.
Predatory lending exists in the formal and informal sectors. Within this ecosystem, the Act fails to understand, identify, and prohibit predatory lending and recovery practices. It is a cover for the Central Bank’s failure to properly regulate ‘Licensed Finance Companies’ in the interests of citizens.
The biggest offenders are the big finance companies, in which some parliamentarians are deposit-holders. Therefore, some lawmakers benefit from excess profitmaking through exploitative practices, at the expense of poor mostly rural women.
Where law reform should discipline the bullies and thugs in credit delivery, it will instead wipe out, through over-regulation, community-based and managed lenders such as death donation societies, farmer associations, and urban and rural women’s collectives, which have been a lifeline for vulnerable working-class women and a defence from harmful recovery practices.
Structural Adjustment Programmes
The motivation for this new law are the market- and capital- friendly structural reforms insisted by International Financial Institutions; not the concerns and needs of those at the mercy of predatory lenders.
From the Microfinance Act 2016, to the 2023 version of the Ranil Wickremesinghe regime, the Asian Development Bank (ADB) through its loans has been a promoter of these regressive reforms.
The 2026 Act, with some changes suggested by the Supreme Court in 2024 and hardly any of the changes demanded by affected communities, has been moved forward by the NPP government in line with ADB loan conditionalities.
The path of de-regulation for banking, finance, trade, and investment; and over-regulation of poor people’s savings and credit institutions, smacks of the bias to big capital, which the NPP in opposition once criticised.
Reforms needed
The financial and banking reforms we want to see are to make credit from state banks and public funds accessible and affordable to women producers in agriculture and micro and small business operators; with decent wages and social protection for workers; that improve household opportunity for a dignified livelihood and decent lives.
Yukthi is a forum supporting working people’s movements and people’s struggles for democracy and justice in Sri Lanka.
by Yukthi Collective
Opinion
Illegal Bus Halt at Gate Number 11 of NHSL
There is an unofficial bus halt at Gate Number 11 of the National Hospital at the 90-degree bend at the Prof. Nandadasa Kodagoda Mawatha (Old Norris Canal Road) which creates traffic jams at peak hours. Especially at the school opening and closing times at Carey College and hospital visiting hours.
Prospective passengers stand by the bend and then the busses stop suddenly on the middle of the road. The motorcycle in the picture is put into danger. The next bus halt is a few yards further near Carey College and Medical College Junction.
The problem is that illegal practices such as these, end up as approved procedure in our neck of the woods!
It must be nipped in the bud.
G. Fernando
Opinion
Naval hostilities close to a neutral coastal state: Legal assessment of a submarine attack on an Iranian warship near Sri Lanka
A submarine attack on an Iranian destroyer proximate to Sri Lanka represents more than a discrete naval engagement; it signals a potential horizontal escalation of conflict into the wider Indian Ocean Region (IOR). Historically, confrontations between Iran and Western powers have been largely confined to the Persian Gulf and adjacent regional waters. A strike near Sri Lanka, however, shifts the operational theatre from a semi-enclosed regional sea into the open Indian Ocean. This globally vital maritime space encompasses critical trade routes, energy supply corridors, and strategically sensitive naval zones.
This geographic expansion carries multiple strategic implications. First, it demonstrates the long-range maritime strike capabilities and blue-water operational reach of the belligerent forces. Second, it functions as a form of deterrence signalling, conveying a willingness to project force beyond traditional conflict zones. Third, it widens the theatre of operations, increasing the probability of third-party entanglement and amplifying regional instability.
Beyond its immediate military and strategic dimensions, the incident raises complex legal questions under both jus ad bellum—the body of law governing the use of force between states—and jus in bello, encompassing international humanitarian law applicable to armed conflict at sea. The central questions addressed in this paper are:
a. Lawfulness of Force:
Whether the use of force against the Iranian warship was lawful under the United Nations Charter, including considerations of self-defence and Security Council authorisation.
b. Compliance with International Humanitarian Law:
Whether the attack adhered to the principles and norms of international humanitarian law governing naval warfare, including the lawfulness of the target, proportionality, distinction, and obligations toward shipwrecked personnel.
c. Neutrality and Coastal State Rights:
Whether Sri Lanka’s rights and obligations as a neutral coastal state were violated, particularly within its territorial sea and Exclusive Economic Zone (EEZ).
d. Operational and Geostrategic Implications:
The broader implications of conducting military operations within or near neutral maritime zones, and the interplay between legal permissibility, maritime security, environmental obligations, and regional stability.
These questions form the analytical framework that will guide the discussion throughout this paper, providing a structured lens for examining the legal, humanitarian, and strategic dimensions of the incident.
Jus ad Bellum and Jus in Bello:
Legality of the Use of Force
The legality of a submarine attack against a commissioned warship during an armed conflict must be assessed within a structured framework of international law comprising the jus ad bellum regime under the United Nations Charter, the corpus of international humanitarian law (IHL), and customary principles of naval warfare as reflected in the San Remo Manual on International Law Applicable to Armed Conflicts at Sea.
At the threshold level, the UN Charter governs the lawfulness of the use of force between states. Article 2(4) establishes a general prohibition on the threat or use of force against the territorial integrity or political independence of any state, subject only to narrow exceptions. These exceptions include the inherent right of self-defence under Article 51 and actions authorised by the United Nations Security Council under Chapter VII.
Accordingly, if an Iranian warship were torpedoed by a submarine, the attacking state would be required to demonstrate that the action was undertaken either pursuant to a valid claim of self-defence, necessitated by an armed attack or imminent threat, or as part of an already existing international armed conflict. Absent such justification, the attack could constitute an unlawful use of force in violation of the Charter’s collective security framework.
Where an international armed conflict is already in existence, the analysis shifts from jus ad bellum to Jus in bello, namely the rules governing the conduct of hostilities.
Jus in bello
: Naval Warfare and Attack Against an Iranian Naval Ship
Where an international armed conflict exists between the United States and Iran, the analysis shifts to jus in Bello. Commissioned warships form part of a state’s armed forces and constitute lawful military objectives. Under customary naval warfare law, as reflected in the San Remo Manual on International Law Applicable to Armed Conflicts at Sea, enemy warships may be attacked, including by submarine-launched torpedoes, without prior warning. An Iranian destroyer operating as part of Iran’s navy would therefore constitute a legitimate military objective in principle.
However, the legality of a torpedo attack by a United States submarine remains subject to the foundational principles of international humanitarian law, including distinction, proportionality, military necessity, and precautions in attack. The principle of distinction requires that the target be military in nature; proportionality prohibits attacks expected to cause incidental harm excessive in relation to the anticipated military advantage; and military necessity demands that the force employed be directed toward achieving a legitimate military objective.
These obligations are particularly significant in maritime theatres characterised by dense commercial traffic, such as the sea lanes south of Sri Lanka. Incidental harm to neutral merchant vessels, offshore installations, or third-state interests must therefore be carefully assessed in relation to the anticipated concrete and direct military advantage.Submarine warfare, though technologically sophisticated and strategically consequential, remains subject to these enduring normative constraints, which seek to balance operational effectiveness with humanitarian considerations in the maritime domain.
Customary humanitarian law further requires that feasible measures be taken to search for and rescue the shipwrecked, wounded, and dead following an engagement. In this respect, any action by the Sri Lanka Navy to rescue surviving sailors and recover bodies from the destroyed vessel represents a prudent and legally consonant exercise of humanitarian responsibility. Such conduct reflects long-standing maritime tradition and aligns with the duties recognised under the law of armed conflict and the broader law of the sea, without compromising Sri Lanka’s neutral status.
Sri Lanka’s Legal Position Concerning the Torpedoed Iranian Vessel
Sri Lanka’s legal position is largely determined by the maritime location in which the submarine attack occurred. Should the hostilities have taken place within Sri Lanka’s territorial sea, defined as extending up to 12 nautical miles from the baseline, such conduct would constitute a breach of Sri Lanka’s sovereignty and a violation of the law of neutrality, which forbids belligerent states from engaging in hostilities within neutral waters and imposes a duty on the coastal state to prevent such actions within its jurisdiction. In that circumstance, Sri Lanka would be entitled to issue a diplomatic protest and potentially pursue reparative claims.
By contrast, as the engagement took place within Sri Lanka’s Exclusive Economic Zone (EEZ), the analysis is more nuanced under the United Nations Convention on the Law of the Sea. The EEZ confers sovereign rights for resource exploitation rather than full sovereignty, and prevailing state practice accepts that military operations, including naval manoeuvres, are not per se unlawful in another state’s EEZ. While such an engagement would not automatically breach international law, it would nonetheless generate significant security concerns, including risks to navigational safety, potential environmental damage, and heightened regional instability. Should the sinking result in oil discharge, hazardous material release, or debris affecting shipping lanes, obligations under UNCLOS to protect and preserve the marine environment would be engaged.
Although the Rio Declaration on Environment and Development does not explicitly regulate armed conflict, its principles highlight an increasing expectation for states to protect the environment during hostilities. Similarly, UNCLOS mandates that states protect and preserve the marine environment. Consequently, should the sinking of the Iranian destroyer cause an oil spill, the release of hazardous materials, or navigational hazards, specific environmental liabilities would be triggered. Strategically, a submarine strike near Sri Lanka signals more than a discrete tactical engagement. It reflects the projection of great-power naval capabilities into a strategically sensitive maritime space through which a substantial proportion of global trade transits.
Sri Lanka occupies a pivotal geostrategic position astride the principal East–West Sea Lines of Communication linking Gulf energy supplies, East Asian manufacturing centres, and European markets via the Suez Canal. A substantial proportion of global container traffic transits south of the island, rendering these waters acutely sensitive to instability. Even a limited naval engagement can elevate war-risk insurance premiums, disrupt commercial routing, and indirectly affect port operations in Colombo and Hambantota.
From a jus ad bellum perspective, geographic expansion does not in itself render hostilities unlawful; yet it complicates assessments of necessity and proportionality and increases the risk of escalation affecting neutral states.
The torpedoing of an Iranian naval vessel in maritime zones proximate to Sri Lanka necessitates a carefully layered legal assessment situated at the confluence of jus ad bellum, jus in bello, and the law of the sea. As this paper has demonstrated, the legality of the incident ultimately turns on four interrelated determinations:
(a) whether a lawful basis for the use of force existed under Article 51 of the Charter of the United Nations, grounded in self-defence;
(b) whether the attack complied with the principles of distinction, proportionality, and military necessity under international humanitarian law;
(c) whether the engagement occurred within Sri Lanka’s territorial sea, thereby infringing its sovereignty and violating the law of neutrality; and
(d) whether the obligations owed to survivors, shipwrecked personnel, and the marine environment were respected in accordance with the law of armed conflict at sea and relevant maritime conventions.
If the attack did not occur within Sri Lanka’s territorial sea, it would not amount to a violation of sovereignty or a breach of the law of neutrality capable of engaging state responsibility on that ground.
By contrast, where the engagement occurred beyond the territorial sea whether within the Exclusive Economic Zone or on the high seas prevailing interpretations of the law of naval warfare, reinforced by consistent state practice, suggest that the operation may be regarded as legally defensible, provided that the cumulative requirements of necessity, proportionality, distinction, and humanitarian obligation were satisfied.
Nevertheless, legal permissibility does not equate to strategic prudence. The deployment of a United States submarine to conduct kinetic operations in proximity to a neutral coastal state within the Indian Ocean underscores the increasingly complex convergence of naval power projection, humanitarian norms, environmental obligations, and coastal state rights within the contemporary maritime domain.
Even where consistent with international law, the extension of submarine warfare into the wider Indian Ocean carries destabilising implications for regional security, commercial shipping, and the safety of neutral coastal states situated along critical sea lines of communication. The geographic expansion of hostilities into this maritime space heightens the risks of miscalculation, escalation, and unintended third-party involvement.
For Sri Lanka, the incident underscores the delicate equilibrium between maintaining neutrality, safeguarding maritime security, and upholding the international legal order. The actions undertaken by the Sri Lanka Navy in conducting rescue and recovery operations for surviving sailors and deceased personnel reflect the discharge of well-established humanitarian duties under international law and exemplify responsible conduct at sea.
Ultimately, this episode illustrates the increasingly complex convergence of naval power projection, international humanitarian norms, and coastal state rights within the contemporary maritime domain. In an era marked by intensifying great-power competition and expanding operational reach in the Indian Ocean, the preservation of legal clarity, strategic restraint, and respect for neutral maritime spaces remains essential to sustaining regional stability and safeguarding the integrity of the international maritime order.
by REAR ADMIRAL (RTD.) JAGATH RANASINGHE
VSV, USP, psc, MSc (DS) Mgt, MMaritimePol (Aus),
PG Dip in CPS, DIP in CR, FNI (Lond), Former Govt Fellow GCSP
-
News5 days agoUniversity of Wolverhampton confirms Ranil was officially invited
-
News6 days agoLegal experts decry move to demolish STC dining hall
-
News5 days agoFemale lawyer given 12 years RI for preparing forged deeds for Borella land
-
News4 days agoPeradeniya Uni issues alert over leopards in its premises
-
News2 days agoRepatriation of Iranian naval personnel Sri Lanka’s call: Washington
-
Business6 days agoCabinet nod for the removal of Cess tax imposed on imported good
-
News5 days agoLibrary crisis hits Pera university
-
Business7 days agoDialog partners with Ratmalana Audiology Centre for World Hearing Day 2026
