| Aras Dam | |
|---|---|
 The memorial plate of Aras dam in Jolfa | |
  Location of the Aras Dam on the border of Azerbaijan and Iran | |
| Country | Iran Azerbaijan |
| Location | Poldasht, Nakhchivan |
| Coordinates | 39°05′28″N 45°24′08″E / 39.09111°N 45.40222°E |
| Status | Operational |
| Construction began | 1964 |
| Opening date | 1971 |
| Dam and spillways | |
| Height | 40 m (130 ft) |
| Length | 1,026 m (3,366 ft) |
| Width (crest) | 8 m (26 ft) |
| Spillway capacity | 66.5 m3/s (2,350 cu ft/s) |
| Reservoir | |
| Creates | Aras Reservoir |
| Total capacity | 1.35 km3 (1,090,000 acre⋅ft) |
| Surface area | 145 km2 (56 sq mi) |
| Power Station | |
| Operator(s) | Azerenerji Iran Water Resources Management Company |
| Commission date | 1971 |
| Turbines | 4 × 11 MW (15,000 hp) |
| Installed capacity | 44 MW (59,000 hp) |
The Aras Dam (Azerbaijani: Araz su anbarı; Persian: سد ارس) is an embankment dam on the Aras River along the border of Iran and Azerbaijan. It is located downstream of Poldasht in West Azerbaijan Province, Iran and Nakhchivan City in Nakhchivan Autonomous Republic, Azerbaijan. The primary purpose of the dam is hydroelectric power generation and water supply.