Built in 2014, the primary purpose of the dam is to retain approximately a billion cubic metres of water for irrigation purposes, which would otherwise flow out to sea. Recognising the urgent requirement to control the growing threat of chronic diseases rapidly spreading across the areas of nagollagama, maho, and polpithigama, the national water supply and drainage board spearheaded the said project together with kolon global. Three types of water supply projects exist in the basin. Present oya discharges more than mcm of water into sea annually. Improvement of existing water supply schemes in western province 39,000. Water resource management in the deduru oya basin 47. The alluvial formations of these larger rivers may vary from between 10 to 15 m and up to 35 m in. Head works of the project was completed and his excellency the president has declared open the project on 22 nd november 2014. The objective of the project is to provide safe drinking water and increase water supply coverage by constructing water supply system in anuradhapura north where the people depend on unsafe ground water which causes dental and skeletal fluorosis, thereby contributing to improving hygienic status and health condition in the area. Deduru oya water supply project feasibility study eml. For example, consider the case of the water supply scheme for kurunegala the capital city of the north western province, which draws water from deduru oya.
The deduru oya is 115 km long and has a catchment area of 2 623 km. Deduru oya damdeduru oya dam openingreservoir project youtube. Access engineering plc, one of the foremost civil engineering companies in sri lanka was recently awarded the construction of deduru. The oya is a timehonored terracotta vessel that is planted in the ground to naturally, perfectly water your garden dramatically reducing your water waste and watering time. Deduru oya river basin, the fifth largest river basin in sri lanka, and proposes institutional. Assessments of irrigation water requirement from deduru oya. A total of approximately 1178 ha land was inundated by water which included. Pdf land use changes resulting from construction of deduru oya. Deduru oya damdeduru oya dam openingreservoir project. Aug 25, 2017 access engineering awarded deduru oya water supply project construction daily mirror august 23, 2017 published on friday, august 25, 2017. After commissioning the rbmc drainage water from the paddy fields, located within 023km, would also drains to the deduru oya and augment the base flow further.
The investment program will implement structural investments to address water scarcity, food security, and poverty issues in beneficiary areas by increasing and securing perennial access to water for irrigation and nonagricultural users. Deduru oya is the sixth largest river in sri lanka which is about 142 km in length and has a water resource area of about 2,420 sq. Feb 05, 2015 deduru oya dam opening deduru oya reservoir project deduru oya project project. Old buried riverbeds with high groundwater yields are present in the lower kelani river aspects. To utilize this water, project proposals were forwarded in 2000. The salient features of the more important irrigation schemes in the basin are included in the annex. Access engineering progressing deduru oya water supply project. Mar 06, 2012 deduru oya is the sixth largest river in the country. Those with access to pipeborne water supply amount only to 5 percent of the population in the basin. Access engineering progressing deduru oya water supply project construction work daily mirror february 23, 2018 published on friday, march 9, 2018. Oct 27, 2014 the multipurpose deduruoya reservoir project with a reservoir of a capacity of 75 million cubic meters mcm, augments water resources in 6 existing tank based irrigation systems in the deduru oya left bank through a left bank lb canal and also diverts water to the iginimitiya tank in the mee oya basin through a right bank rb trans basin. A whole new water reservoir which can hold 75 million cubic meters of water has been built to avoid runoff from deduru oya river to the ocean without benefiting man. The deduru oya dam is an embankment dam built across the deduru river in kurunegala district of sri lanka. Deduru oya reservoir project, a milestone for nwp farmers.
At mathatilla oya, another dam is constructed to channel 145,000,000 m 3 5. The nwp canal is interlinked with the north central province canal program ncpcp. Access engineering progressing deduru oya water supply. As pre calculated by the department of irrigation, the full supply level of the. Simple tips and easyto follow instructions to get a wildly successful garden as easy as plant, water, grow. At present most of the water withdrawn from deduru oya basin is used for irrigation.
Mar 24, 2017 water balance under different management scenarios was tested in deduru oya reservoir project system, sri lanka with focus on left bank canal system to address agricultural, energy, and environmental water deficits in all seasons. Domestic water drinking supply schemes in the basin. In addition to this, drinking water supply project from daduru oya reservoir has started. Modeling water allocation options in deduru oya reservoir. In this study, a model for water management in the left bank lb canal development area of the deduru oya irrigation project is developed. The project envisages construction of a 75 mcm reservoir across deduru oya, 300 meters upstream of existing redi bendi ella anicut to. The proposed left bank lb canal which is being constructed under the deduru oya reservoir project will supply water to augment 6 existing storagebased minor irrigation systems in the lb of.
Access engineering making progress on deduru oya water supply. Deduru oya reservoir project media nikaweratiya, sri. Deduru oya reservoir project commissioning, a landmark event. The river annually discharges more than mcm of water to the sea. Deduru oya reservoir project media, nikaweratiya, sri lanka. Access engineering plc is making swift progress in the construction of deduru oya water supply project in ridi bendi ela, maho. Annually, around 1,000 cubic metres of water flows to the sea. The project areas include hakwatuna oya irrigation system in the deduru oya river basin and medium and small irrigation systems in the upper mi oya basin in the north western province nwp. Drinking water is a serious problem for a third of the basin population, in the middle part of the basin area falling within. Domestic water supply three types of water supply projects exist in the basin.
This irrigation project is an example of integration of modern irrigation systems and traditional irrigation systems to improve cropping intensity and resilience. Developing effective institutions for water resources management. May 18, 2014 deduru oya is the sixth largest river in sri lanka which is about 142 km in length and has a water resource area of about 2,420 sq. The objective of the project is to provide safe drinking water by constructing water supply facilities in the anuradhapura north area where the people depend on unsafe ground water which causes dental fluorosis, and thereby contribute to improving living standard, hygienic status and health condition in the area. The proposed irrigable area under the lb canal is about 3000 ha including both existing and proposed new development areas. Water management in sri lanka and japan home facebook.
Sustainable management of the deduru oya river basin, sri. Integrated water resource analysis of the deduru oya left. The proposed left bank lb canal which is being constructed under the deduru oya reservoir project will supply water to augment 6 existing storage. Access engineering awarded deduru oya water supply project construction daily mirror august 23, 2017 published on friday, august 25, 2017. According to historical evidence, there were three small anicuts that had let water out from the deduru oya during king parakramabahus period. The situation is aggravated by the fact that all the water in the deduru oya is diverted to the batalagoda irrigation scheme through a diversion structure. Cropwat model enabled estimation of irrigation water requirement.
Register of irrigation projects in sri lanka, irrigation department, 1975. Pdf developing effective institutions for water resources. A traditional, natural way to save water, save time and grow better plants. Land use changes resulting from construction of deduru oya. Just fill your oya with water every 5 to 10 days and the rest is taken care of. Contextual challenges of developing effective water.
Pdf water capacity assesment and study of social and. Deduru oya is the fourth largest river in the country and originates from the western slopes of kandymatale hills. Deduru oya catchment area a and reservoir project area b. Deduru oya water supply project vacancies archives. Map of deduru oya indicating lift irrigation systems. Access engineering progressing deduru oya water supply project construction work daily mirror february 23, 2018. Aug 23, 2017 access engineering plc, one of the foremost civil engineering companies in sri lanka was recently awarded the construction of deduru oya water supply project, ridi bendi ela, maho. Deduru oya, mi oya, kirindi oya, and malwathu oya have broad and deep alluvial beds of variable texture and gravel content in their lower reaches.
Access engineering awarded deduru oya water supply project. Rainfall is the only source of water for the deduru oya river basin. During cultivation seasons drainage water from the magalla scheme augments the deduru oya base flow downstream of the ridibendiela anicut. Access engineering plc, one of the foremost civil engineering companies in sri lanka was recently awarded the construction of deduru oya water supply project, ridi bendi ela, maho. Deduru oya reservoir project to be commissioned tomorrow. The objective of the project is to prevent about 1,000 billion sq. The ricebased industries are greater in number in major irrigation scheme. The deduru oya water supply project is initiated partly as a remedy for the chronic kidney disease ckd which is highly prevail in the area that. The proposed left bank lb canal which is being constructed under the deduru oya reservoir project will supply water to augment 6 existing storagebased minor irrigation systems in the lb of deduru oya.
Deduru oya is the fourth largest river in sri lanka with a cathment area of 2620 sq. A conceptual rainfallrunoff model, simhyd, was employed for modeling discharge into ancient tanks. Access engineering plc, one of the foremost civil engineering companies in sri lanka, is making a swift progress in the construction of the deduru oya water supply project, ridi bendi ela, maho. Anuradhapura north water supply project phase1 our work. Anuradhapura north water supply project phase 2 our work jica.
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