| Shahid Abbaspour Dam (Karun-1 Dam) | |
| Dam Crosses: | Karun River |
| Location: | Khuzestan, Iran |
| Status: | O |
| Dam Type: | Arch dam |
| Dam Length: | 380m (1,250feet) |
| Dam Height: | 200m (700feet) |
| Opening: | 1976 |
| Owner: | Water and Power Organization of Khuzestan |
| Operator: | IWPRDC |
| Res Capacity Total: | 3.139km3 |
| Res Surface: | 54.8km2 |
| Plant Turbines: | 8 × 250MW Francis-type |
| Plant Capacity: | 2000MW |
| Plant Commission: | 1976 - 2006[1] |
| Coordinates: | 32.1167°N 49.6167°W |
| Website: | https://kwpa.ir/ |
The Shahid Abbaspour Dam (Persian: سد شهید عباسپور), formerly known as Great Reza Shah Kabir Dam (Persian: Persian: سد رضاشاه کبیر) before the 1979 Revolution, is a large arch dam providing hydroelectricity from the Karun River; it is located about northeast of Masjed Soleiman, in the province of Khuzestan, Iran, and originally completed in 1976.[2] The dam was the first of a series of dams planned for development on the Karun River.[3]
The dam is a double-curvature concrete arch dam, high from the foundation rock. Its crest width is .[4] The arch dam design was chosen for the narrow, rocky gorge where it is located. The double-curvature arch design withstands the pressure created by the reservoir with a minimum of concrete, because the shape transmits the force of the reservoir downward and laterally, against the rock foundation; this has the effect of strengthening the dam concrete and its foundation by keeping it in compression.[5]
The dam site houses two power stations, one built in 1976 and another built in 1995. Each contains four water turbines connected to electric generators of, for a combined generating capacity of . The dam's electrical output is connected to the national electrical grid, with most generation occurring during periods of peak demand for electricity.