| Seimare Dam | |
| Location Map: | Iran |
| Coordinates: | 33.2911°N 47.1986°W |
| Country: | Iran |
| Location: | Badreh County |
| Status: | Operational[1] |
| Construction Began: | 1997 |
| Opening: | 2013 |
| Dam Type: | Arch dam |
| Dam Height: | 1800NaN0 |
| Dam Length: | 2020NaN0 |
| Dam Width Crest: | 60NaN0 |
| Dam Width Base: | 280NaN0 |
| Dam Volume: | 5500000NaN0 |
| Dam Crosses: | Seimare River |
| Spillway Count: | 2 |
| Spillway Type: | Main, auxiliary |
| Spillway Capacity: | 82300NaN0 (total) |
| Res Name: | Seimareh Reservoir |
| Res Capacity Total: | 32000000000NaN0 |
| Res Catchment: | 278860NaN0 |
| Res Surface: | 69.50NaN0 |
| Res Elevation: | 7200NaN0 |
| Res Max Length: | 400NaN0 |
| Plant Coordinates: | 33.2795°N 47.21°W |
| Plant Commission: | 2013 |
| Plant Turbines: | 3 x 160 MW Francis-type |
| Plant Capacity: | 480 MW |
| Plant Annual Gen: | 850 million kWh (est.) |
Seimare Dam (Persian: سد سیمره), also known as Hini Mini or spelled Seymareh,[2] is an arch dam on the Seimare River in Badreh County, Ilam Province, Iran. The primary purpose of the dam is hydroelectric power generation. Studies for the dam were carried out in the mid to late 1970s and construction began on the diversion works in 1997. In 2006, concrete placement began and on 19 May 2011, the dam began to impound the river. The dam's first generator became operational in 2013. The power plant, located downstream, houses three 160 MW Francis turbine-generators with an installed capacity of 480 MW.[2] [3] [4]
The dam is a 1800NaN0 tall variable-radius arch type with a crest length of 2020NaN0. The dam's crest is 60NaN0 wide with a base width of 280NaN0 while the volume of concrete in the dam structure is 5500000NaN0. The dam sits at the head of a 278860NaN0 catchment area and creates a reservoir with a 32000000000NaN0 capacity. The reservoir's surface area is 69.50NaN0 and its length 400NaN0. The dam has a main and auxiliary spillway. The main spillway is controlled by two radial gates and has a maximum discharge capacity of 57630NaN0. The auxiliary spillway is uncontrolled and has a discharge capacity of 24670NaN0.[5]