La Grande Décharge
| La Grande Décharge | ||
 above the Barrage de L'Isle-Maligne |
||
| Data | ||
| location | Saguenay – Lac-Saint-Jean in Québec (Canada) | |
| River system | Saint Lawrence River | |
| Drain over | Rivière Saguenay → Saint Lawrence River → Atlantic Ocean | |
| origin |
Lac Saint-Jean 48 ° 36 ′ 37 " N , 71 ° 46 ′ 33" W. |
|
| Source height | 98 m | |
| Union | with La Petite Décharge to Rivière Saguenay Coordinates: 48 ° 32 '28 " N , 71 ° 36' 54" W 48 ° 32 '28 " N , 71 ° 36' 54" W
|
|
| length | 16 km | |
| Catchment area | 73,000 km² | |
| Discharge at the Centrale de L'Isle-Maligne A Eo gauge : 73,000 km² |
MQ 1914/1993 Mq 1914/1993 |
1460 m³ / s 20 l / (s km²) |
| Medium-sized cities | Alma | |
 Centrale de L'Isle-Maligne |
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The La Grande Décharge ( French for "The Great Drain") forms the main drain of Lac Saint-Jean in the Canadian province of Québec .
It leaves Lac Saint-Jean on its eastern bank about 12 km west of Alma . When the river was dammed at L'Isle-Maligne , a lake was created from its upper section. The settlement of Saint-Cœur-de-Marie lies on the north bank . The La Grande Décharge joins 2.5 km east of Alma with the smaller drain La Petite Décharge running south to the Rivière Saguenay .
Hydropower plants
On La Grande Décharge, the Barrage de L'Isle-Maligne dam was built in 1926 with an associated hydroelectric power station. The power plant has 12 turbines with a total output of 402 MW. The drop height is 33.5 m. The maximum flow rate is 1525 m³ / s. The facility is operated by Rio Tinto Alcan .
Web links
Individual evidence
- ↑ a b station 02RH001. ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. Water Survey of Canada
- ↑ Barrage de L'Isle-Maligne. Commission de toponymie du Quebec
- ↑ energie.alcan.com ( Memento of the original from July 7, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Centrale de L'Isle-Maligne. Commission de toponymie du Quebec
