Vilyuy Dam#Vilyuy Reservoir

{{Infobox dam

| name = Vilyuy Dam

| image = Vilyuy_River_Dam_Chernyshevsky.jpg

| image_size =

| image_caption =

| image_alt =

| location_map = Russia

| location_map_size =

| location_map_caption =

| coordinates = {{coord|63|01|55|N|112|28|19|E|type:landmark|display=inline,title}}

| country =

| location = Sakha Republic, Russia

| purpose =

| status =

| construction_began = 1964

| opening = 1967

| demolished =

| cost =

| owner =

| dam_type = Embankment

| dam_height = {{convert|75|m|ft|abbr=on}}{{cite news

|title=Experience in Constructing Dams on Permafrost in Yakutia

|author=Biyanov, G. F.

|pages=594–598

|work=Permafrost: Second International Conference (USSR Contribution)

|publisher=National Academies

|year=1978}}

| dam_height_thalweg =

| dam_height_foundation=

| dam_length = {{convert|600|m|ft|abbr=on}}

| dam_width_crest =

| dam_width_base =

| dam_volume =

| dam_elevation_crest =

| dam_crosses = Vilyuy River

| spillway_count =

| spillway_type =

| spillway_capacity = {{convert|5970|m3/s|cuft/s|abbr=on}}

| res_name =

| res_capacity_total = {{convert|35.9|km3|acre feet|abbr=on}}

| res_capacity_active =

| res_capacity_inactive=

| res_catchment =

| res_surface = {{convert|2501|km2|mi2|abbr=on}}

| res_elevation =

| res_max_depth =

| res_max_length =

| res_max_width =

| res_tidal_range =

| plant_operator =

| plant_commission =

| plant_decommission =

| plant_type =

| plant_turbines =

| plant_capacity = 650 MW

| plant_annual_gen = 2,710 GWh

| website =

| extra =

}}

The Vilyuy Dam ({{langx|ru|Вилюйская ГЭС}}; {{langx|sah|Бүлүүтээҕи ГЭС|Bülüütêği GES}}) is a large dam and hydroelectric power station on the Vilyuy River in Chernyshevsky, Mirninsky District, Sakha Republic (Yakutia), Russia. The dam was built between 1964 and 1967 to provide power for diamond mines in the area. It is located in the southern part of the Vilyuy Plateau and was one of the first of such major structures in the world to be built on permafrost. Vilyuy is reported to have the coldest operating conditions of any hydroelectric plant in the world.{{cite book

|author=Yanity, Brian B.

|title=Cold Climate Problems of a Micro-hydroelectric Development on Crow Creek, Alaska

|pages=8–9

|year=2007

|isbn=978-0-54945-634-6}}

The dam is an embankment structure {{convert|75|m|ft}} high and {{convert|600|m|ft}} long, containing {{convert|5000000|m3|yd3|abbr=on}} of fill. Its power station has four turbines with a combined capacity of 650 MW,{{cite book

|author=Smith, Daniel W.

|author2=Low, Nola

|title=Cold Regions Utilities Monograph

|publisher=American Society of Civil Engineers

|page=82

|year=1996

|isbn=0-78440-192-6}} generating 2,710 million KWh annually.