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
A paradox of history
There seems to be a striking similarity between ancient Greece and modern Britain. Both countries remain paradoxes of history. Greece was a small city state constantly at war with neighbouring countries. It did not have a big army, but it had considerable sea power. However, Greece was a leading state over the whole of the Mediterranean. In fact, Greece was once a super power in the Western world.
Britain was very powerful in the 19th century. British justice was administered in Africa, India and Ceylon. British factories flourished in many countries and schoolchildren started reading R.L. Stevenson’s ‘Treasure Island’ and the works of Rudyard Kipling. What Ralph Waldo Emerson said in the 1850s is still valid today. He said, “If there’s one test of national genius universally accepted, it is success; and if there be one successful country in the universe for the last millennium, that country is England. It is the best of actual nations.”
In World War I, Britain faced a crushing defeat. Eventually, the British Empire was reduced to a Commonwealth. World War II shattered the image of Britain further. Although Britain lost much of its power, it continued to be an influential country. Even after achieving independence, India retained English as an official language. The British parliament system is well established in many Commonwealth countries. Some people still wonder how England still exercises its influence over the minds of men and women.
Staying power
There are many powerful countries in the world today such as the United States, Russia and China. Although England is not a super power, she has staying power. According to Oliver Wendell Holmes, a good part of greatness is simply being there. For that matter, England has been there for many centuries. So far no other country has been able to defeat her. As a result, sometimes we wonder whether we can have a world without England.
England has had an unwritten Constitution for a very long time. Other countries have emulated her political institutions. The British people have an established church with complete religious freedom. Although there are social classes in Britain, there has been no major clash among them. Unlike in many other countries, there are only two leading political parties in England. When the Labour Party is in power, the government is not subservient to labour. Similarly, when the Conservative Party is in power, the government is not conservative.
Most British colonies in the East including India and Ceylon did not sever the cultural and emotional links with Britain and retain them even after achieving independence. India became independent in 1947, but she decided to retain English as an official language. By doing so, India produced a number of English writers such as R.K Narayan. However, Ceylon did not give English any official status and treated it as a link language. As a result, students paid less attention to learning English. They were made to understand that everything can be done by learning Sinhala and Tamil. We have failed to produce English writers in the calibre of J. Vijayatunga who wrote ‘Grass for my feet.’
Politically shrinking
The United Kingdom is politically shrinking. However, its influence vibrates throughout the world. English has brought many nations together. There is a common understanding among countries that share the English language and literature. William Shakespeare’s dramas are staged in countries such as China where English is not an official language. People have come to the conclusion that English has become a broker of ideas and institutions.
England is not an aggressive country. However, if provoked, it can deliver a mortal blow to its enemy. British Prime Minister Margaret Thatcher showed her mettle as the iron lady. Britain held the fort against the might of Napoleon Bonaparte who ruled France. The country can still boast of a heavy moral credit. The British stick to their international agreements. The power of England draws mainly from its language. British people say ‘It’s right’ when it is right’. When it is not right, they say, ‘It’s not right.’ Meanwhile English occupies a pre-eminent place in world languages. All the research work in many parts of the world is available in English. You can learn any subject easily through English.
Apart from the language, people respect British standards which are technical specifications and quality benchmarks developed by the British Standards Institution. The United Kingdom’s independent national standards body was established in 1901. It maintains over 37,000 standards covering industries such as construction, manufacturing and technology ensuring safety and reliability.
British English
Standard British English is the variety of English that has undergone codification to the point of being socially perceived as the standard language associated with formal schooling, language assessment and official print publications. For historical reasons dating back to the rise of London in the ninth century, the form of language spoken in London and the East Midlands became the Standard English used in schools, universities, literature and law.
British English functions as one of the two major foundational and standard varieties of the English language alongside American English. It serves as a primary reference point for spelling and grammar. It acts as a global standard, and international institutions are often defined by specific pronunciation.
Most Sri Lankan doctors primarily move to England for postgraduate training, higher specialisation and better career prospects. They are driven by superior training infrastructure, world-class facilities and globally recognised qualifications.
To sum up, when you think of learning an international language, there is no alternative to English. If you wish to read literature, you cannot ignore eminent English dramatists and poets such as William Shakespeare and John Milton. Many leading Sri Lankans like S.W.R.D. Bandaranaike were Oxford University products. Therefore, English deserves to be made an official language in Sri Lanka.
By R.S. Karunaratne
Opinion
State Literary Awards only for the rich?
The Department of Cultural Affairs has once again called authors, and publishers to lodge their entries for selection of the prestigious State Literary Awards 2026.The criteria and conditions required and notified in the public domain, makes it mandatory for the literary work to be printed and published prior to submission for consideration of the awards. There is absolutely no provision for writers to submit their work in Manuscript form.
Where does that leave the financially impoverished writers who are talented, creative and wish to submit a well edited typescript of their work as manuscript for consideration of the State Literary Awards? In a literary environment that encourages a proliferation of self-published books of all forms and features presented by vanity publishers who have their eye on the purse of the author than on literary merit and artistic excellence, it is easy to show that you are an ” established writer” by spending your cash abundantly towards glossy covered books which the printing industry and fawning publishers will lap up with greed.
Even the Gratiaen Prize in Sri Lanka, sponsored by world-renowned Michael Ondaatje allows for Manuscript entries together with published books. Significantly, the manuscript entries that win the prize are assisted to publish their work which is part of the winnings. Many a young, aspiring writer with little funds who won the Gratiaen Prize on merit, but had submitted their entry in manuscript form have been thereby encouraged to submit their work on merit basis only.
It is a fact that the Commonwealth Short Story Prize, a massive state-supported initiative across 56 nations accepts only unpublished short fiction. Further, several countries in the world have established national or state level literary prizes that specifically accept unpublished manuscripts to provide equity in discovering new talent and supporting national literature without bias or favour. In Australia, Jamaica, Philippines, major national awards organised by the State for literature, specifically accept unpublished manuscripts for consideration.
Let’s face the truth. The printing costs are escalating. There is little demand in Sri Lanka for literary work in the English Language in particular. Traditional Publishing where the literary work is reviewed and assessed for talent and creativity and thereafter published is seldom found. The reviews and critical analysis of literary works are rare. But publishers make a pile by pandering to the vanity of aspiring writers who have the financial clout to pay their way through to being featured in prestigious award ceremonies and accolades. Thereafter, their substandard works get a further fillip by bearing the label of “Won the State Literary Award for Literature”! It is a cycle of literary charlatans and their pimps in the publishing industry for whom the price that is paid for publishing and not Meritocracy is the sine-qua-non.
Is this the level playing field promised by the NPP Government and their Marxist protagonists? A government that was voted into power on the platform of affording fair opportunity and equality seems to discriminate in favour of the Haves against the Have- nots in the cultural department to say the least! Anil Fernando
Opinion
Delivering on English
English literature offers a rich heritage of wonderful ideas and thoughts. The reader can be intellectually uplifted. It brings refreshing new vistas and stimulating new ideas. However, this English literature has to be first introduced to the student in order to fire up his or her interest and be made aware of this rich source of culture. Students of basic English as a second language work hard and learn all the hum-drum mechanics of the language, for which they get tested and graded. But importantly, nae crucially, this should be followed up with intellectual rewards for the students’ efforts – which, of course, is the enjoyment of the works of literature of the many great writers in the English language. This is the great payoff, the great dividend for all their efforts but this, apparently goes missing.
One of the obvious reasons for the lack of “follow through” may be lack of time allocated in the curriculum – or, perhaps, more darkly, the teachers’ own lack of knowledge of the great range of good reading materials produced by the countless generations of literary geniuses who have gone before. Such writers have laid down for us a heritage of glorious literary works in books and essays, all of which are to be found in any good library. It is thought that much of this good literature ought to be introduced to all students of English, “full stop,” as part of developing a knowledgeable and cultured society. (Isn’t that what we want?) Reading English literature should bring an intellectual enrichment to all those willing to drink from this Bacchanalian horn of plenty.
It must be said finally, that it can be fairly expected that most young people, especially those learning English as a second language, are totally unaware of the many outstanding pieces of writing that propel English to stand tall amongst the rest. That is, students need to be first introduced to great writings and have a spark of interest ignited in these great works of literature.
For example, by being introduced to “Daffodils,” a short descriptive poem by William Wordsworth, the student can get some very pleasant ideas to think on.
Do not overlook Conan Doyle’s “Sherlock Holmes” detective stories, each one captivating the reader’s attention right to the end. It is by these short stories that the novice reader can first consolidate his power of reading.
For light reading Jerome K. Jerome’s book “Three Men in a Boat” is suggested. On one occasion he goes to the library suffering from a slight hay-fever (allergy) seeking a cure. He consults a book, “Lexicon of Pharmacology”, and recoils in horror as his symptoms fit most of those diseases described in the book! He concludes he cannot live much longer and staggers home to rest and recuperate! This is a well related tale in the book – although seemingly quite implausible!
Similarly, by having the poem meanings explained, e.g. “What is Life if Full of Care?” by William Henry Davis – how he regrets that we humans are always in a hurry, too busy to notice or see the delights of nature, and scenes of natural beauty, e.g., a young woman’s smile as she passes by; we have no time to make friends and even kiss her. Regrets! Explaining this to students would bring a certain intellectual insight.
John Keats’s poem, “Ode to Autumn” is another great work describing the ripening fruits of the autumn season and how nature as a living being, brings to fruition all the good things of a rural landscape quietly humming with warmth after a hot summer.
Again, it is likely necessary to explain to a young, Sri Lankan mind the meaning of the descriptive poetry found in this magnificent poem.
This is the real English to be tasted and then swigged at lustily in pleasure and satisfaction, not some writing airing historical grievances for children to study!
1970 British Cohort Study
It should be observed here that the ‘1970 British Cohort Study’ followed 70,000 people to examine various aspects of their lives. One result discovered was that if a young person reads a lot, it develops his/ her general intelligence no-matter his parents; it makes him smarter.
It was also noted that reading brings life-long benefits; it improves mood, it helps with social skills, increases empathy, reduces anxiety, protects against depression and slows brain decay, the study found.
But these days many young people never gain a great competence in reading English; the fear is that standards are falling. This is bringing poorer critical thinking, less depth of personality and less empathy for others which has the result of a more turbulent society.
People are urged to switch off their headphones and read more of what they like – try reading the newspapers!
Priyantha Hettige
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