Rajaolibanda Diversion Scheme or RDS is an irrigation project located across River Tungabhadra in Mahbubnagar district in Andhra Pradesh and Raichur districtof KarnatakaIt is an inter-state anicut on the Thungabhadra river in Raichur district of Karnataka.
History
RDS was taken up on river Tungabhadra and the head works and the left bank canal was mostly completed by 1956.
The Project
RDS would irrigate villages in Mahbubnagar. The Bachawat Tribunal had allocated 17.1 tmc ft of water of which 15.9 tm cft was exclusively meant for Mahabubnagar. The RDS has been a source of sorrow to the Mahabubnagar farmers because it is hardly giving them 8-10- tmcft against their entitlement of 15.9 tmcft.
The Rajolibanda barrage is not receiving adequate continuous flows due to excessive water utilization in its catchment area in Karnataka. It would be a permanent solution to connect the upstream catchment area (near 16°01′00″N 76°32′00″E at 475 m MSL) via 20 km long tunnel with the Narayanpur reservoir which is located across the adjacent Krishna River. It would also provide additional water to bring more area under irrigation in uplands of Raichur & Mahboobnagar districts and low lands of Kurnool district. Reliable Krishna river water can be supplied instead of unreliable Tungabhadra river water to the existing Tungabhadra Left bank canal in Raichur district, the existing Rajolibanda left bank canal and the existing 150 years old K. C. Canal. In addition to taking up Rajolibanda right bank canal construction, a new barrage /weir ( 15°51′27″N 77°01′59″E ) would be constructed across the Tungabhadra river located upstream of Rajolibanda barrage to divert the augmented Krishna river water for the additional irrigation in Kurnool district. Thus substantial Tungabhadra reservoir water would be saved for utilization in upstream new projects and reliable water supply is ensured to existing projects.
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