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Dam Safety – whose responsibility?

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by Eng (Ms) Badra Kamaladasa

On September 10 a horrible dam disaster occurred in Libya stunning the global community with its consequences. Dam experts the world over began sharing information, opinions etc. to establish the reason for the failure. The latest figures on death or disappearance of humans are 10,000 and 11,000 rspectively. No account is available yet on other affected living species such as pets and farm animals. It would take months to estimate the damage to infrastructure and the environment. The mental scarring of those affected will not be measurable for generations, a fact noted by the scientific community.

Reuters reports that U.N. Secretary-General Antonio Guterres told the General Assembly that Derna (the disaster location) residents were “victims many times over of war, climate change and leaders – near and far – who failed to find a way to peace”. Angry residents say the disaster could have been prevented. Officials acknowledge that a contract to repair the dams after 2007 was never completed, blaming insecurity in the area for that. Engineers blame years of neglect due to political instability in the country for the failure of the two dams. By this week eight officials were jailed for negligence of their duties that caused the deadly collapse of the dams.

This whole episode reminded me of the Kantale dam breach of April 1986, more than 37 years ago. Even though the rest of the country has forgotten that disaster which took 127 human lives, totally destroyed nearly 600 private and government-owned buildings and partly damaged another 630, and washed away roads and other infrastructure.

Area farmers lost their crops. The survivors and officials on the spot can remember the devastation and agony of the aftermath. The cost of relief work and rehabilitation of infrastructure was Rs. 525 million then, which would be more than Rs. 12 billion at today’s value.

Can anyone ensure that similar disasters will not happen in the future? Whose responsibility is it to prevent or mitigate such disasters? Let us get some idea about causes of dam disasters and responsibilities of various sectors in minimizing the risks.

A dam is considered as the most hazard prone man made structure, among all civil engineering structures. Failure of a single large dam can cause the instant loss of thousands of lives, billions worth of property damage and a priceless environment cost. Many including developed countries, have faced this horrendous experience and taken action to prevent or mitigate dam disasters.

A dam can fail with or without prior warning due to an inherited weakness, a gradually developing weakening process or as a result of a natural phenomenon such as a heavy storm, landslide or earthquake.

Hence it is difficult to design a dam with a zero probability of failure. The only solution is to have a foolproof surveillance and monitoring system in place under the direction of experienced professionals.

How vulnerable are those living in the shadow of dams is a frequently asked question. Rumours are common during bad weather about dangers of dams, particularly those located at elevations above population centers, breaching. This makes people panic and look for reliable information. One basic weakness is that people are not made aware in advance of impending danger.

Preparing inundation maps and making people aware of vulnerabilities is mandatory in many countries. In Sri Lanka, reservoirs such as Samanalawewa, Senanayake Samudraya, Nachchaduwa etc are considered high risk schemes. Proper risk analysis of each and every dam needs to be undertaken with the support of scientifically proven models now available. Investigations and detailed research may need to be done with regard to dams that may be at risk due to complex processes.

Whether a dam is made of earth, concrete or a combination of rock and core material, it is susceptible to aging, similar to a living being. It has a life span which can be extended by proper maintenance, upgrading and correct operation of associated structures. If no proper attention is paid, the dam’s life span will become less than specified. Similar to human beings, dams too should be subject to proper checks/ surveillance by specialists and remedial action taken where necessary.

Statistics show that highest number of dam failures had occurred globally due to overflow during heavy storms. Hence excess incoming water has to be released safely through the spill in a properly controlled manner.

Water released from a breach of a small village tank can be sufficient to trigger a large dam failure. This is inevitable given the topography of our river basins with dams located in close proximity to each other. In the 1957/58 floods Sri Lanka experienced such a situation when 35 large, 53 medium sized and 1,500 small dams breached during a heavy storms in the NP, NCP, CP and NWP.

Spillways in large dams were upgraded after this experience by incorporating radial gates for engineers to manage the inflow and outflow of reservoirs according to pre-determined rules without allowing the water to go its own way. This is no final solution as these gates must be maintained and even upgraded to meet the changes in climate and ecology.

With changing hydrological conditions due to climate change, it has been observed that the intensity of rainfall is increasing within shorter periods. Hence water level in reservoirs too rise very fast. The reduction in forest cover in catchments has aggravated this process. Hence adequacy of the spillways need to be periodically studied to ensure safety of dams during floods.

Prior warning systems too need tightening to ensure that signs of dam failure are quickly communicated to those at risk and evacuation centers identified. As the boy scout motto says, we must ‘be prepared.’ Dam Safety cannot be a standalone program. It must be a part of the regional development strategy in in all localities.

Apart from the dam managing organizations, other government agencies using the reservoirs for functions such as inland fishing, domestic water supply, tourism etc too have a role to play in dam safety.

Decision making during emergencies must take into account the risks to the public as well as economic, environmental, social, and cultural impacts. The technical analysis of risks associated with a dam cannot be the sole decision-making factor. All stakeholders should participate in finalizing emergency preparedness plans. Inputs on all aspects are necessary when a warning is issued. Prevention of disaster and mitigation of impact can be achieved only through such collective action.

When people use reservoirs for bathing and washing, they must restrict themselves to designated places without disturbing the bund slope or riprap. Earth bunds should not be selected for tree planting campaigns. Trees can do much harm to the integrity of a dam.

Encroachment of dam reservations and blocking the inspection paths is a very common in Sri Lanka. While it is the responsibility of the engineers to make sure dams are kept healthy, government support like funds for regular maintenance and that of other stakeholders and the public is necessary to achieve desired results.

Ultimate responsibility for a national disaster directly rests with the president/prime minister of a country whether the dam is publicly or privately-owned. This is why the president chairs the National Council for Disaster Management (NCDM), according to the Sri Lanka Disaster Management Act No. 13 of 2005.

(The writer is a retired Director General of Irrigation)



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Features

SL urged to use GSP+ to the fullest to promote export development

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Ambassador of the EU to Sri Lanka and the Maldives, Carmen Moreno and Chairman, Pathfinder Foundation Ambassador Bernard Goonetilleke

Sri Lanka needs to take full stock of its current economic situation and use to the maximum the potential in its GSP+ facility for export sector growth. In the process, it should ensure that it cooperates fully with the European Union. The urgency of undertaking these responsibilities is underscored by the issues growing out of the recent US decision to sweepingly hike tariffs on its imports, though differentially.

These were principal ‘takes’ for participants in the Pathfinder Foundation’s Ambassadors’ Roundtable forum held on April 8th at the Colombo Club of the Taj Samudra. The main presenter at the event was Ms. Carmen Moreno Raymundo, Ambassador of the European Union to Sri Lanka and the Maldives. The forum was chaired by Ambassador Bernard Goonetilleke, Chairman, Pathfinder Foundation. The event brought together a cross-section of the local public, including the media.

Ms. Moreno drew attention to the fact Sri Lanka is at present severely under utilizing its GSP+ facility, which is the main means for Sri Lanka to enter the very vast EU market of 450 million people. In fact the EU has been Sri Lanka’s biggest trading partner. In 2023, for instance, total trade between the partners stood at Euros 3.84 billion. There is no greater market but the EU region for Sri Lanka.

‘However, only Sri Lanka’s apparel sector has seen considerable growth over the years. It is the only export sector in Sri Lanka which could be said to be fully developed. However, wider ranging export growth is possible provided Sri Lanka exploits to the fullest the opportunities presented by GSP+.’

Moreno added, among other things: ‘Sri Lanka is one among only eight countries that have been granted the EU’s GSP+ facility. The wide-ranging export possibilities opened by the facility are waiting to be utilized. In the process, the country needs to participate in world trade in a dynamic way. It cannot opt for a closed economy. As long as economic vibrancy remains unachieved, Sri Lanka cannot enter into world trading arrangements from a strong position. Among other things, Sri Lanka must access the tools that will enable it to spot and make full use of export opportunities.

‘Sri Lanka must facilitate the private sector in a major way and make it possible for foreign investors to enter the local economy with no hassle and compete for local business opportunities unfettered. At present, Lanka lacks the relevant legal framework to make all this happen satisfactorily.

‘Sri Lanka cannot opt for what could be seen as opaque arrangements with bilateral economic partners. Transparency must be made to prevail in its dealings with investors and other relevant quarters. It’s the public good that must be ensured. The EU would like to see the local economy further opening up for foreign investment.

‘However, it is important that Sri Lanka cooperates with the EU in the latter’s efforts to bring about beneficial outcomes for Sri Lankans. Cooperation could be ensured by Sri Lanka fully abiding by the EU conditions that are attendant on the granting of GSP+. There are, for example, a number of commitments and international conventions that Sri Lanka signed up to and had promised to implement on its receipt of GSP+ which have hitherto not been complied with. Some of these relate to human rights and labour regulations.

‘Successive governments have pledged to implement these conventions but thus far nothing has happened by way of compliance. GSP+ must be seen as an opportunity and not a threat and by complying with EU conditions the best fruits could be reaped from GSP+. It is relevant to remember that GSP+ was granted to Sri Lanka in 2005. It was suspended five years later and restored in 2017.

‘The importance of compliance with EU conditions is greatly enhanced at present in view of the fact that Sri Lanka is currently being monitored by the EU with regard to compliance ahead of extending GSP+ next year. A report on Sri Lanka is due next year wherein the country’s performance with regard to cooperating with the EU would be assessed. The continuation of the facility depends on the degree of cooperation.

‘A few statistics would bear out the importance of Sri Lanka’s partnership with the EU. For example, under the facility Sri Lanka benefits from duty free access in over 66% of EU tariff lines. The highest number of tourist arrivals in Sri Lanka in 2023 was from the EU’s 27 member states. Likewise, the EU’s 27 member states rank second in the origin of inflows of foreign exchange to Sri Lanka; with Italy, France and Germany figuring as the main countries of origin. Eighty five percent of Sri Lanka’s exports to the EU market benefits from GSP+. Thus, the stakes for the country are high.’

Meanwhile, President, In-house Counsel & Legal Advisor, The European Chamber of Commerce of Sri Lanka, John Wilson said: ‘GSP+ should be seen as not only an opportunity but also as a necessity by Sri Lanka in the current international economic climate. ‘Implementation of local laws is what is needed. Considering the pressures growing out of the US imposed new tariff regime, a good dialogue with the EU is needed.

‘Sri Lanka’s level of business readiness must be upped. Among the imperatives are: An electronic procurement process, Customs reforms, a ‘National Single Window’, stepped-up access to land by investors, for example, a clear policy framework on PPPs and reform of the work permits system.’

It ought to be plain to see from the foregoing that Sri Lanka cannot afford to lose the GSP+ facility if it is stepped-up economic growth that is aimed at. It would be in Sri Lanka’s best interests to remain linked with the EU, considering the aggravated material hardships that could come in the wake of the imposition of the US’ new tariff regime. Sri Lanka would need to remain in a dialogue process with the EU, voice its reservations on matters growing out of GSP+, if any, iron out differences and ensure that its national interest is secured.

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Features

SENSITIVE AND PASSIONATE…

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Chit-Chat
Chiara Tissera

Mrs. Queen of the World Sri Lanka 2024, Chiara Tissera, leaves for the finals, in the USA, next month

I had a very interesting chat with her and this is how it all went:

1. How would you describe yourself?

I am a sensitive and passionate individual who deeply cares about the things that matter most to me. I approach life with a heart full of enthusiasm and a desire to make meaningful connections.

2. If you could change one thing about yourself, what would it be?

Actually, I wouldn’t change a thing about myself because the person I am today, both inside and out, is the result of everything I’ve experienced. Every part of me has shaped who I am, so I embrace both my strengths and imperfections as they make me uniquely me.

3. If you could change one thing about your family, what would it be?

If there’s one thing I could change about my family, it would be having my father back with us. Losing him six years ago left a void that can never be filled, but his memory continues to guide and inspire us every day.

4. School?

I went to St. Jude’s College, Kurana, and I’m really proud to say that the lessons I gained during my time there have shaped who I am today. My school and teachers instilled in me values of hard work, perseverance and the importance of community, and I carry those lessons with me every day. I was a senior prefect and was selected the Deputy Head Prefect of our college during my tenure.

5. Happiest moment?

The happiest moment of my life so far has been winning the Mrs. Sri Lanka 2024 for Queen of the World. It was a dream come true and a truly unforgettable experience, one that fills me with pride and gratitude every time I reflect on it.

6. What is your idea of perfect happiness?

Happiness is a deeply personal and multifaceted feeling that often comes from a sense of contentment, fulfillment and well-being. For me, perfect happiness is in moments of joy, peace and accomplishments … and also being surrounded by my loved ones.

7. Are you religious?

Yes, I’m a very religious person. And I’m a firm believer in God. My faith guides me through life, providing strength, dedication and a sense of peace in every situation. I live by the quote, ‘Do your best, and God will do the rest.’

8. Are you superstitious?

I’m not superstitious. I believe in making my own decisions and relying on logic and faith rather than following superstitions.

9. Your ideal guy?

My ideal guy is my husband. He is compassionate, understanding and is always there to support me, no matter what. He’s my rock and my best friend – truly everything I could ever want in a partner.

10. Which living person do you most admire?

The living person I admire the most is definitely my mummy. Her strength, love and unwavering support has shaped me into who I am today. She is my role model and she inspires me every day with her wisdom and kindness.

11. Your most treasured possession?

My most treasured possession is my family. They are the heart of my life, providing me with love, support and strength. Their presence is my greatest blessing.

12. If you were marooned on a desert island, who would you like as your companion?

I would like to have my spouse as my companion. Together, we could make the best of the situation, supporting each other, sharing moments of laughter and finding creative ways to survive and thrive.

13. Your most embarrassing moment?

There’s quite a few, for sure, but nothing is really coming to mind right now.

14. Done anything daring?

Yes, stepping out of my comfort zone and taking part in a pageant. I had no experience and was nervous about putting myself out there, but I decided to challenge myself and go for it. It pushed me to grow in so many ways—learning to embrace confidence, handle pressure, and appreciate my own uniqueness. The experience not only boosted my self-esteem but also taught me the value of taking risks and embracing new opportunities, even when they feel intimidating.”

15. Your ideal vacation?

It would be to Paris. The city has such a magical vibe and, of course, exploring the magical Eiffel Tower is in my bucket list. Especially the city being a mix of history culture and modern life in a way that feels timeless, I find it to be the ideal vacation spot for me.

16. What kind of music are you into?

I love romantic songs. I’m drawn to its emotional depth and the way they express love, longing a connection. Whether it’s a slow ballad, a classic love song or a more modern romantic tune these songs speak to my heart.

17. Favourite radio station?

I don’t have a specific radio station that I like, but I tend to enjoy a variety of stations, depending on my mood. Sometimes I’ll tune into one for a mix of popular hits, other times I might go for something more relaxing, or a station with a certain vibe. So I just like to keep it flexible and switch it up.

18. Favourite TV station?

I hardly find the time to sit down and watch TV. But, whenever I do find a little spare time, I tend to do some spontaneous binge – watching, catching whatever interesting show is on at that moment.

19 What would you like to be born as in your next life?

Mmmm, I’ve actually not thought about it, but I’d love to be born as someone who gets to explore the world freely – perhaps a bird soaring across continents.

20. Any major plans for the future?

Let’s say preparing and participating in the international pageant happening in the USA this May. It’s an exciting opportunity to represent myself and my country on a global stage. Alongside this, I am dedicated to continuing my social service work as a title holder, striving to make a meaningful difference in the lives of others through my platform.

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Features

Fresher looking skin …

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The formation of wrinkles and fine lines is part of our ageing process. However, if these wrinkles negatively impact appearance, making one look older than they actually are, then trying out some homemade remedies, I’ve listed for you, this week, may help in giving your skin a fresher look.

* Banana:

Bananas are considered to be our skin’s best friend. They contain natural oils and vitamins that work very perfectly to boost our skin health. Skincare experts recommend applying the banana paste to the skin.

Take a ripe banana and mash a quarter of it until it becomes a smooth paste. Apply a thin layer of the banana paste on your skin and allow it to sit for 15 to 20 minutes before washing it off with warm water.

* Olive Oil:

Olive oil works as a great skin protector and many types of research suggest that even consuming olive oil may protect the skin from developing more wrinkles. Olive oil contains compounds that can increase the skin’s collagen levels. Yes, olive oil can be used as a dressing on your salads, or other food, if you want to consume it, otherwise, you can apply a thin layer of olive oil on your face, neck and hands and let it stay overnight.

* Ginger:

Ginger serves to be a brilliant anti-wrinkle remedy because of the high content of antioxidants in it. Ginger helps in breaking down elastin, which is one of the main reasons for wrinkles. You can have ginger tea or grate ginger and have it with honey, on a regular basis.

* Aloe Vera:

The malic acid present in Aloe Vera helps in improving your skin’s elasticity, which helps in reducing your wrinkles. Apply the gel once you extract it from the plant, and leave it on for 15-20 minutes. You can wash it off with warm water.

* Lemons:

Lemons contain citric acid, which is a strong exfoliant that can help you get rid of your dead skin cells and wrinkles. Also, as an astringent and a cleansing agent, it helps to fade your wrinkles and fine lines. You can gently rub a lemon slice in your wrinkled skin and leave it on for 10-15 minutes. Rinse afterwards and repeat this process two to three times a day.

* Coconut Oil:

Coconut oil contains essential fatty acid that moisturises the skin and helps to retain its elasticity. You can directly apply the coconut oil, and leave it overnight, after gently massaging it, for the best results.

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