| Lar Dam | |
|---|---|
 Lar Lake | |
  Location of Lar Dam in Iran | |
| Country | Iran |
| Location | Mazandaran, Amol county |
| Coordinates | 35°53′21.58″N 51°59′45.54″E / 35.8893278°N 51.9959833°E |
| Purpose | Water supply, power |
| Status | Operational |
| Construction began | 1974 |
| Opening date | 1982 |
| Owner(s) | Regional Water Company |
| Dam and spillways | |
| Impounds | Lar river |
| Height | 105 m (344 ft) |
| Length | 1,150 m (3,773 ft) |
| Width (crest) | 13 m (43 ft) |
| Width (base) | 800 m (2,625 ft) |
| Spillway capacity | 1,160 m3/s (41,000 cu ft/s) |
| Reservoir | |
| Total capacity | 960,000,000 m3 (778,285 acre⋅ft) |
| Power Station | |
| Commission date | Kalan: 1998 Lavarak: 2012-2013 |
| Turbines | Kalan: 3 x 38.5 MW Francis-type Lavarak: 2 x 23.5 MW Francis-type |
| Installed capacity | Kalan: 115.5 MW Lavarak: 47 MW |
| Website https://thrw.ir/st/73 | |
Lar Dam (Persian: سد لار sad-de lār) is a dam located at the foot of Mount Damavand in Amol county, Mazandaran, Iran. The dam is located within the protected Lar National Park, and situated just 70 kilometers northeast of the capital and the most populous city of the country, Iran. The primary purpose of the dam is municipal water supply to Tehran but prior to the water reaching the city filtration plant, it is used to power the Kalan and Lavarak Hydroelectric Power Stations, with a combined installed capacity of 162.5 MW.