Veligonda Irrigation Project Revived in Andhra Pradesh
Source:The Hindu ↗
Why It Matters
Crucial for APPSC aspirants studying state infrastructure, regional disparities, river water utilization, and geography of Andhra Pradesh.
Summary
The article details the revival and progress of Andhra Pradesh's ambitious Veligonda Project, highlighting its significance in providing irrigation and drinking water to chronic drought-hit regions like Prakasam, Kadapa, and Nellore through inter-basin water transfer from the Srisailam reservoir via tunnels under the Nallamala forest.
Key Points
- The Veligonda Project (officially the Srisailam Left Canal Tunnel Project) is a major irrigation initiative designed to supply irrigation and drinking water to drought-prone areas in Prakasam, Nellore, and Kadapa districts of Andhra Pradesh.
- It utilizes flood waters from the Krishna River, drawn from the Srisailam reservoir, channeling them through massive tunnel networks across the Nallamala hills.
- The revival and advancement of the project bring renewed hope for agricultural development and resolution of long-standing drinking water crises in Rayalaseema and uplands of Prakasam.
Important Terms
Poola Subbaiah Veligonda Project
A major irrigation and drinking water initiative in Andhra Pradesh designed to divert Krishna River floodwaters from Srisailam reservoir via twin tunnels through the Nallamala Hills to drought- and fluoride-affected uplands in Prakasam, Nellore, and Kadapa districts.
UPSC context
Crucial for APPSC Group 1 & 2 (Geography of Andhra Pradesh, Irrigation, Inter-basin water transfer, and Drought-prone area development).
Nallamalasagar Reservoir
An artificial lake created by closing gaps like Sunkesula and Gottipadia as part of the Veligonda Project, designed to store diverted Krishna floodwaters for regional irrigation and drinking supply.
UPSC context
Important for APPSC questions on water resource infrastructure, reservoir capacities, and regional irrigation projects in Andhra Pradesh.
Veligonda Twin Tunnels
An 18.8-kilometer twin-tunnel system excavated beneath the Nallamala forest core to enable gravity-fed inter-basin transfer of Krishna floodwaters from Srisailam reservoir to the Nallamalasagar reservoir.
UPSC context
Tested in APPSC exams under engineering milestones, inter-basin water transfer challenges, and environmental management in eco-sensitive zones like Nallamala.
Prelims Trap
The Veligonda Project is a major lift irrigation scheme relying entirely on high-capacity pumps across the Nallamala hills.
Aspirants often assume Veligonda is a lift irrigation scheme, but its primary conveyance through Nallamala hills operates via gravity-fed twin tunnels.
Static Concepts Connected
What are the key inter-basin water transfer and irrigation projects across Andhra Pradesh?
- Veligonda Project: Poola Subbaiah Veligonda Project diverts Krishna floodwaters from Srisailam reservoir via twin tunnels through Nallamala hills to Prakasam, Nellore, and Kadapa.
- Telugu Ganga: Telugu Ganga Project provides Krishna river water to Chennai and irrigates drought-prone areas in Kurnool, Kadapa, Chittoor, and Nellore districts.
- Handri-Neeva: Handri-Neeva Sujala Sravanthi lifts Srisailam water to irrigate chronic drought-hit upland regions of Rayalaseema districts.
- Galeru-Nagari: Galeru-Nagari Sujala Sravanthi utilizes Krishna floodwaters from Srisailam right canal to irrigate Kadapa and Chittoor districts.
Cross-Topic Patterns
Veligonda tunnels + NSTR wildlife conservation
The Veligonda tunnels cross beneath the Nagarjunsagar-Srisailam Tiger Reserve, raising critical questions about balancing infrastructure development in ecologically sensitive tiger corridors under the Wildlife Protection Act.
Inter-basin water transfer + drought-prone area development
Inter-basin transfer from Srisailam reservoir feeds drought-prone Rayalaseema and Prakasam, linking river-linking engineering with regional backwardness mitigation strategies.
APPSC Group-1 loves location-tunnel-river matrix questions: expect a match-the-following on Veligonda, Srisailam, Nallamala, and districts.
Linked PYQs · 2
Linked PYQs · 2
- 2023APPSC_PRELIMSGS1
Match the following Irrigation Projects and their States (location): | Irrigation Projects | States | |---|---| | a. Parwan Multipurpose Project | I. Madhya Pradesh | | b. Renukaji Dam Project | II. Uttarakhand | | c. Lakhwar | III. Himachal Pradesh | | d. Ken-Betwa Link Project | IV. Rajasthan | Choose the correct answer using the codes given below: Code: a b c d
- 2019APPSC_PRELIMSGS1
To enhance food security and to make Indian Agriculture more resilient to climate change, which programme was started in 2011-12?
