Seven Mile Dam is a concrete gravity-type
hydroelectric
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and ...
dam
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, a ...
on the
Pend d'Oreille River
The Pend Oreille River ( ) is a tributary of the Columbia River, approximately long, in northern Idaho and northeastern Washington (state), Washington in the United States, as well as southeastern British Columbia in Canada. In its passage throu ...
15 km SE of
Trail
A trail, also known as a path or track, is an unpaved lane or small road usually passing through a natural area. In the United Kingdom and the Republic of Ireland, a path or footpath is the preferred term for a pedestrian or hiking trail. Th ...
, 18 km downstream from
Boundary Dam
Boundary Dam is a concrete arch gravity-type hydroelectric dam, finished in 1967, on the Pend Oreille River, in the U.S. state of Washington. The dam is located in the northeast corner of Washington state. It is operated by Seattle City Light an ...
and 9 km upstream from
Waneta Dam
The Waneta Dam is a concrete gravity-type hydroelectric dam on the Pend d'Oreille River in the Canadian province of British Columbia. It lies downstream of Seven Mile Dam at the Pend d'Oreille's confluence with the Columbia River. It is located a ...
in the
Canadian province
Within the geographical areas of Canada, the ten provinces and three territories are sub-national administrative divisions under the jurisdiction of the Canadian Constitution. In the 1867 Canadian Confederation, three provinces of British North ...
of
British Columbia
British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...
. The power plant has a capacity of 848 MW and generates 3200 GWh per year. The May, June and early July flow of the river in most years, is greater than the plants capacity. During these times water is spilled, not used to generate power. The reservoir is 420 ha (1,040 acres), which includes 170 ha (425 acres) of flooded river channel. Under the
Canal Plant Agreement operations are coordinated with
Waneta Dam
The Waneta Dam is a concrete gravity-type hydroelectric dam on the Pend d'Oreille River in the Canadian province of British Columbia. It lies downstream of Seven Mile Dam at the Pend d'Oreille's confluence with the Columbia River. It is located a ...
.
[ BC Hydro]
See also
*
List of dams in the Columbia River watershed
There are more than 60 dams in the Columbia River watershed in the United States and Canada. Tributaries of the Columbia River and their dammed tributaries, as well as the main stem itself, each have their own list below. The dams are listed in ...
*
List of generating stations in BC
References
Dams in British Columbia
Hydroelectric power stations in British Columbia
Regional District of Kootenay Boundary
Dams completed in 1979
Dams on the Pend Oreille River
Gravity dams
BC Hydro
Publicly owned dams in Canada
{{Canada-powerstation-stub