ISLAMABAD(APP)- In another endeavor to overcome persisting water shortage in twin cities of Islamabad and Rawalpindi, the authorities concerned have planned to construct two dams to establish new reservoirs-one on River Soan and a carryover dam at Khanpur. "PC-II of 'Dotara Carryover Dam' has already been finalized and awaits a go-ahead from the ministry whereas the CDWP is about to approve the construction of Cherah Dam in its upcoming meeting," said a senior CDA official here Friday. He said the construction of Dotara Dam is inevitable as huge quantity of water is wasted due to insufficient capacity of Khanpur Dam. The dam would have two times more storage capacity than Khanpur Dam which stores more or less 100,000 acre feet water while the rest is wasted through the spillways. He said work would be started soon after green signal from the Planning Commission that would approve funding of the project.  "The project would take 18 months to complete once it is approved from the ministry as well as the Planning Commission," said the official. He said due to its importance, the carryover dam may be built prior to the construction of proposed Cherah and Dhaducha Dam.  He said the infrastructure would be duly linked up with all the stakeholders including Rawalpindi Cantonment Board, Chaklala Cantonment Board, Capital Development Authority and Rawalpindi Development  Authority. The dam would be constructed about 25 kilometres upstream of Khanpur Dam. In the beginning, Khanpur Dam has the capacity of 107,000 acre feet that has been reduced to more or less 90,000 acre feet of water. He added that owing to the availability of enough quantity of water, after the construction of carryover dam, the water might also be supplied to Murree as well. Meanwhile, nearly 850 special children belonging to Islamabad and Rawalpindi were unable to get admission this year owing to unavailability of school buildings, Principal, Special Children Academy, Dr Ahmed Hassan said on Friday. Addressing a monthly meeting at Islamabad Branch of his academy, he said efforts are on to contact philanthropists for construction of new buildings to accommodate these physically handicapped children. In this regard, he said, "We will also seek the support of provincial government and Rawalpindi Chambers of Commerce."