Kardzhali Reservoir
| Kardzhali Dam | |
|---|---|
| Official name | Язовир Кърджали |
| Location | Kardzhali, Kardzhali Province, Bulgaria |
| Coordinates | 41°38′01″N 25°20′26″E / 41.63361°N 25.34056°E |
| Purpose | Power generation, flood control, water storage, recreation |
| Status | Operational |
| Construction began | 1957 |
| Opening date | 1963 |
| Owner(s) | Bulgarian Government |
| Operator(s) | NEK EAD |
| Dam and spillways | |
| Type of dam | Arch-gravity dam |
| Impounds | Arda River |
| Height | 103.5 m (340 ft) |
| Length | 402.89 m (1,321.8 ft) |
| Elevation at crest | 331.45 m (1,087.4 ft) |
| Spillway type | 4 Spill valves 4 Gates |
| Spillway capacity | Valves: 3,100 m3/s (110,000 cu ft/s) Gates: 880 m3/s (31,000 cu ft/s) |
| Reservoir | |
| Creates | Kardzhali Reservoir |
| Total capacity | 497,200,000 m3 (403,100 acre⋅ft) |
| Catchment area | 1,882 km2 (727 sq mi) |
| Surface area | 16.07 km2 (6.20 sq mi) |
| Normal elevation | 324.3 m (1,064 ft) |
| Power Station | |
| Operator(s) | NEK EAD |
| Hydraulic head | 93 m (305 ft) maximum |
| Turbines | 4 |
| Installed capacity | 122 MW |
| Annual generation | 160 million kWh |
Kardzhali Reservoir (Bulgarian: язовир Кърджали) is an artificial lake and a hydroelectric dam in southern Bulgaria. It is the uppermost of the three major reservoirs of the Arda Hydropower Cascade, the others being Studen Kladenets and Ivaylovgrad. It is the second largest reservoir by volume in the country after the Iskar.