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Message: <blockquote data-quote="monson" data-source="post: 22442698" data-attributes="member: 30005">Installation of new radial gates of Rajanganaya reservoir<img src="https://scontent.fcmb2-1.fna.fbcdn.net/v/t1.0-9/22852118_1197102333722536_5254292379141620882_n.jpg?oh=360d3299df08cc9a6caf39a5fa4dfeb2&oe=5AA093F7" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://scontent.fcmb2-1.fna.fbcdn.net/v/t1.0-9/22728855_1197102707055832_4676838771654121862_n.jpg?oh=1927e66cb275e6fc00549d3220f5d276&oe=5AAFF9D7" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://scontent.fcmb2-1.fna.fbcdn.net/v/t1.0-9/22814330_1197102883722481_7723042660493972430_n.jpg?oh=a2e1a1b2bafa43f0fa49449f54793c68&oe=5AAF7B73" alt="" class="fr-fic fr-dii fr-draggable " style="" />Installation of new radial gates in the Rajanganaya reservoir is now taking place. Rajanganaya is a large reservoir built across the Kala Oya. The main concrete dam which the huge steel radial gates are installed is 350 m long. The catchment area of the reservoir is 76,863.60 hectares with total storage capacity of 100.37 million cubic meters.Since the reservoir receives water from a main river of the country, Kala Oya and with the large catchment area, almost every year the reservoir fills to its full capacity level. The spill way is a long concrete structure with 30 radial gates. These steel radial gates were installed in 1951 and have not undergone major renovation thereafter. As a result they were corroded and depleted posing serious risk and causing operational inefficiencies.The radial gates were operated manually and at serious flood situations in the past the operators faced difficulties in opening them and discharge water to protect the dam.Under the DSWRPP AF all 30 radial gates are replaced with automated operation system. Manufacturing and installation is done by two contractors, The Government Factory and Colombo Dockyard Ltd, 15 gates by each. DSWRPP AF invests Rs.196.93 million for radial gate replacement and automation of Rajanganaya and Kaudulla reservoirs.Under the phase 1 of the DSWRPP the earthen dam and other structures were renovated and with the completion of this project all structural issues identified in the reservoir will be resolved improving safety and operational efficiency.- <a href="https://www.facebook.com/damsafety/posts/1197103190389117" target="_blank">https://www.facebook.com/damsafety/posts/1197103190389117</a></blockquote>

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