Outardes-3
Encyclopedia
Outardes-3 is a hydroelectric
power station
and dam
on the Outardes River 55 km (34.2 mi) northwest of Baie-Comeau, Quebec
, Canada
. The power station was commissioned in 1969 and is run-of-the-river.
Outardes-3 was built in conjunction with the Manicouagan-Outardes project and is located 13 mi (20.9 km) downstream of Outardes-4
. Only a 250 ft (76.2 m) high concrete dam was needed to exploit 478 ft (145.7 m) of hydraulic head
as the dam raised up water into the existing Lake Tirebouchon. Raising the water in the lake allowed it to rise east near the actual power station 4.5 mi (7.2 km) downstream. Near the eastern portion of the lake, two depressions were filled in with small dikes to withhold the higher lake level, one of which supports a concrete spillway
. From the intake on the northern portion of the concrete dam, water is fed via four 750 ft (228.6 m) penstocks towards the underground power station. Water being discharged from the power station enters a 1488 ft (453.5 m) long and 73 ft (22.3 m) high tunnel before being returned to the river.
Hydroelectricity
Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy...
power station
Power station
A power station is an industrial facility for the generation of electric energy....
and dam
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...
on the Outardes River 55 km (34.2 mi) northwest of Baie-Comeau, Quebec
Quebec
Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....
, Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
. The power station was commissioned in 1969 and is run-of-the-river.
Outardes-3 was built in conjunction with the Manicouagan-Outardes project and is located 13 mi (20.9 km) downstream of Outardes-4
Outardes-4
Outardes-4 is a hydroelectric power station and dam on the Outardes River northwest of Baie-Comeau, Quebec, Canada. The power station was commissioned in 1969 and is supplied by the Outardes-4 Reservoir which is created by seven additional dams....
. Only a 250 ft (76.2 m) high concrete dam was needed to exploit 478 ft (145.7 m) of hydraulic head
Hydraulic head
Hydraulic head or piezometric head is a specific measurement of water pressure above a geodetic datum. It is usually measured as a water surface elevation, expressed in units of length, at the entrance of a piezometer...
as the dam raised up water into the existing Lake Tirebouchon. Raising the water in the lake allowed it to rise east near the actual power station 4.5 mi (7.2 km) downstream. Near the eastern portion of the lake, two depressions were filled in with small dikes to withhold the higher lake level, one of which supports a concrete spillway
Spillway
A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically being the river that was dammed. In the UK they may be known as overflow channels. Spillways release floods so that the water does not overtop and damage or even destroy...
. From the intake on the northern portion of the concrete dam, water is fed via four 750 ft (228.6 m) penstocks towards the underground power station. Water being discharged from the power station enters a 1488 ft (453.5 m) long and 73 ft (22.3 m) high tunnel before being returned to the river.
See also
- Outardes-2Outardes-2Outardes-2 is a hydroelectric power station and dam on the Outardes River southwest of Baie-Comeau, Quebec, Canada. The power station was commissioned in 1978 and is run-of-the-river....
- McCormick DamMcCormick DamThe McCormick Dam is a dam and power station built on the Manicouagan river by the Quebec & Ontario Paper Company and the Canadian British Aluminium Company east of Baie-Comeau, Quebec, Canada. It is named after colonel Robert R...
- Jean-Lesage generating station
- René-Lévesque generating station
- Daniel-Johnson DamDaniel-Johnson DamThe Daniel-Johnson Dam , formerly known as Manic-5, is a multiple arch buttress dam on the Manicouagan River which creates Manicouagan Reservoir. The dam is composed of 14 buttresses and 13 arches and is north of Baie-Comeau in Quebec, Canada...
- History of Hydro-QuébecHistory of Hydro-QuébecHydro-Québec is a government-owned public utility established in 1944 by the Government of Quebec. The company is in charge of the generation, transmission and distribution of electricity across Quebec. Its head office is located in Montreal.-Origins:...
- List of hydroelectric stations in Quebec