Government of Andhra Pradesh
Reservoir Monitoring System
All District Collectors directed to review and update Dam Safety Emergency Action Plans (EAPs) and conduct mock drills at major reservoirs before onset of SW Monsoon 2026.
Constitution of State Dam Safety Organisation (SDSO) under the Dam Safety Act, 2021. Defines roles of Dam Safety Officer, inspection protocols, and reporting requirements.
All reservoirs above 90% capacity instructed to submit hourly storage & inflow reports to State EOC during Northeast Monsoon season (Oct-Dec).
Strengthening Early Warning Systems for Flood-Prone Areas. Includes deployment of automatic rain gauges, telemetry at dams, and integration with APSDMA DSS.
Revised protocol for coordinating dam releases across inter-state rivers (Krishna, Godavari). Requires 6-hour advance notice to downstream districts before any major discharge.
Direction to all district DM authorities to complete village-level flood vulnerability assessment using GIS data and historical flood records. Integration with APSDMA portal mandated.
Central legislation for surveillance, inspection, operation and maintenance of dams. Mandates State Dam Safety Organisation, Dam Safety Review Panel, and Emergency Action Plans for all large dams.
Central Act establishing NDMA, SDMAs, and DDMAs. Framework for disaster management planning, prevention, mitigation, preparedness, response, and recovery across India.
National policy framework covering all phases of disaster management. Sets vision for a safer and disaster-resilient India with emphasis on prevention, preparedness, and community participation.
Notification of flood-prone areas along Krishna, Godavari, Pennar & Vamsadhara rivers. Restricts construction in identified flood zones and mandates early warning systems.
Implementation of Krishna Water Disputes Tribunal (KWDT-II) award allocations. Defines state's share and reservoir operation rules for Srisailam, Nagarjuna Sagar, and Prakasam Barrage.
Framework for water governance: prioritizes drinking water, then irrigation, hydropower, ecology. Advocates integrated water resources management (IWRM) and basin-level planning.
Step-by-step procedure for pre-monsoon, monsoon, and post-monsoon inspection of dams. Covers visual inspection, instrumentation checks, seepage monitoring, and gate operation testing.
Procedures for issuing flood forecasts based on rainfall, reservoir levels, and river gauge data. Defines alert levels (Blue, Orange, Red) and communication protocols to district authorities.
Protocol for controlled and emergency releases from reservoirs. Includes advance warning timeline (6hr, 3hr, 1hr), downstream siren activation, and inter-agency coordination.
Rule curves, gate operation schedules, and decision matrices for reservoir regulation during flood season. Includes coordination requirements with upstream/downstream reservoirs.
Comprehensive guidelines covering flood risk assessment, early warning systems, structural & non-structural measures, community-based flood management, and post-flood recovery.
Template and methodology for preparing Dam Break Analysis, inundation mapping, warning systems, and evacuation plans for every large dam as mandated by Dam Safety Act 2021.
Bureau of Indian Standards guidelines for installing and maintaining seepage monitors, piezometers, settlement gauges, accelerometers, and telemetry systems at dams.
CWC technical manual covering installation, calibration, and maintenance of piezometers, settlement gauges, seismographs, and telemetry systems at large dams.
Official CWC video series on flood forecasting methodology, use of RTDAS data, and interpretation of reservoir advisories for state-level officers.
Public awareness videos on what to do during dam releases, flood evacuations, and how early warning systems work. Available in Telugu and English.
Comprehensive state plan covering all hazards including floods. Chapter on reservoir-induced flooding, basin-wise risk profiles, and institutional response framework.
Volume II with district-specific plans, reservoir risk mapping, village-level vulnerability, evacuation routes, shelter capacities, and contact directories.
NDMA assessment report for Andhra Pradesh covering disaster preparedness, response capacity, institutional framework, and recommendations for strengthening DM systems.
Guidelines for urban flood management covering drainage systems, stormwater management, land-use planning, and early warning for urban flooding scenarios.
Geospatial atlas of all water resources including reservoirs, rivers, canals, and groundwater. Basin-wise water balance, storage capacity, and irrigation potential data.
Collection of photographs of major dams, reservoirs, barrages, and irrigation infrastructure across Andhra Pradesh. Includes aerial views and operational images.
A reservoir is an artificial lake created by constructing a dam across a river. It stores water for irrigation, drinking water supply, hydropower generation, flood control, and industrial use. The water level (storage) fluctuates based on inflows (rainfall, upstream releases) and outflows (canal releases, spillway discharge, evaporation).
Dams are barriers constructed to impound water. They are classified by material (earthfill, rockfill, concrete, masonry) and by purpose (storage, diversion, detention). India has over 5,700 large dams, with AP having some of the largest.
Major reservoirs have gross storage capacity above 100 MCM. These are critical for irrigation command areas, drinking water, and flood moderation. AP's major reservoirs serve millions of acres.
Medium reservoirs have gross storage between 10-100 MCM. They serve local irrigation needs, provide drinking water to towns, and act as buffer storage during floods. AP has over 70 medium reservoirs.
AP has over 53,000 minor irrigation tanks (MI tanks) with individual command area below 2,000 hectares. These form the backbone of decentralized irrigation and are critical for drought resilience and groundwater recharge.
AP is implementing several large irrigation and multipurpose projects to increase storage, extend irrigation coverage, and improve flood management.
A rain gauge (pluviometer) measures the amount of liquid precipitation over a set period. Rainfall data is fundamental for flood forecasting, reservoir inflow estimation, and water resource planning.
Modern reservoirs are equipped with automated sensors that transmit real-time data on water levels, gate positions, seepage, and structural health to central monitoring stations.
The live data shown on this portal goes through a defined pipeline from physical sensor to your screen.
Flood inundation maps show which areas will be submerged at different flood levels. These are pre-computed using hydraulic models and GIS, and are activated on this portal when reservoir levels cross thresholds.
AP's water resources are organized by major river basins. Each basin has distinct rainfall patterns, reservoir systems, and flood characteristics.
Understanding the units used to measure water storage, flow, and levels is essential for interpreting reservoir data.
Official AP Water Resources Information & Management System. Real-time reservoir levels, canal operations, and irrigation statistics for all AP reservoirs.
Weekly national reservoir storage bulletin covering 150 major reservoirs. Comparison with last year and 10-year average.
National water resources GIS portal. Interactive maps for all river basins, reservoirs, watersheds, groundwater, and water quality data across India.
Real-time flood forecasting portal with river level predictions, inflow forecasts, and flood advisories for all CWC monitored stations.
India Meteorological Department forecasts, satellite imagery, radar products, and rainfall data. QPF (Quantitative Precipitation Forecast) for flood forecasting input.
NDSA portal for dam registration, inspection reports, Emergency Action Plans, and dam safety review panel proceedings under the Dam Safety Act 2021.