Brownlee Dam

{{Short description|Dam on the Idaho-Oregon border}}

{{Use American English|date=July 2025}}

{{Infobox dam

| name = Brownlee Dam

| image = Brownlee.jpg

| image_size = 240

| image_caption = View from northeast

| name_official = Brownlee Dam

| dam_crosses = Snake River

| res_name = Brownlee Reservoir

| country = United States

| location = Hells Canyon,
Baker Co., Oregon / Washington Co., Idaho

| location_map = Idaho#USA

| location_map_size =

| location_map_caption = Location in Idaho##Location in the United States

| operator = Idaho Power Company

| dam_length =

| dam_height = {{convert|420|ft|0}}

| dam_width_base =

| construction_began = 1955{{cite news |url=https://news.google.com/newspapers?id=y2wpAAAAIBAJ&sjid=TecDAAAAIBAJ&pg=761%2C1038719 |newspaper=Spokesman-Review |location=Spokane, Washington |agency=Associated Press |title=Brownlee dam one-third done |date=December 2, 1956 |page=26 }}{{cite news |url=https://news.google.com/newspapers?id=0TFWAAAAIBAJ&sjid=POcDAAAAIBAJ&pg=2503%2C3883541 |newspaper=Spokesman-Review |location=Spokane, Washington |agency=Associated Press |title=Brownlee dam base readied |date=December 30, 1956 |page=12 }}

| opening = {{Start date and age|1958|5|9|br=yes}} {{cite news |url=https://news.google.com/newspapers?id=zo0RAAAAIBAJ&sjid=v-YDAAAAIBAJ&pg=6485%2C654137 |newspaper=Spokesman-Review |location=Spokane, Washington |title=Idaho Power shuts gates of big dam |date=May 10, 1958 |page=2 }}{{cite news |url=https://news.google.com/newspapers?id=rwwsAAAAIBAJ&sjid=qMgEAAAAIBAJ&pg=590%2C4452014 |newspaper=Florence Times |location=Alabama |agency=Associated Press |title=New dam goes into operation on Snake River |date=May 10, 1958 |page=7 }}

| cost =

| res_capacity_total = {{convert|1426700|acre.ft|km3}}

| res_catchment = {{convert|72590|sqmi}}

| res_surface = {{convert|15000|acre|km2|0}}

| res_elevation = {{convert|2070|ft}}

| coordinates = {{coord|44.836|-116.9|region:US-OR_type:landmark|display=inline,title}}

| plant_capacity = 585.4 MW

| plant_annual_gen = 2,406.8 GWh

| extra = File:Pacific Northwest River System.png

}}

Brownlee Dam is a hydroelectric earth fill embankment dam in the western United States, on the Snake River along the Idaho-Oregon border (Washington County, Idaho in and Baker County in Oregon). In Hells Canyon at river mile 285, it impounds the Snake River in the {{convert|58|mi|km|adj=mid|-long}} Brownlee Reservoir.