Rivière Saint-François

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Rivière Saint-François
Rivière Saint-Francois, at the mouth of the Rivière Magog, in the city center of Sherbrooke

Rivière Saint-Francois, at the mouth of the Rivière Magog, in the city center of Sherbrooke

Data
location Québec (Canada)
River system Saint Lawrence River
Drain over Saint Lawrence River  → Atlantic Ocean
origin Lac Saint-François
45 ° 53 ′ 55 "  N , 71 ° 9 ′ 28"  W.
Source height 289  m
muzzle Lac Saint-Pierre ( Saint Lawrence River ) Coordinates: 46 ° 6 ′ 58 "  N , 72 ° 55 ′ 15"  W 46 ° 6 ′ 58 "  N , 72 ° 55 ′ 15"  W
Mouth height m
Height difference 286 m
Bottom slope 1 ‰
length 280 km
Catchment area 10,230 km²
Discharge at the Chute-Hemmings
A Eo gauge : 9610 km²
MQ 1925/1994
Mq 1925/1994
192 m³ / s
20 l / (s km²)
Drain MQ
190 m³ / s
Left tributaries Rivière Eaton , Rivière au Saumon (Le Haut-Saint-François) , Rivière Massawippi , Rivière Magog , Rivière au Saumon (Le Val-Saint-François)
Reservoirs flowed through Lac Aymler
Big cities Sherbrooke
Medium-sized cities Drummondville
Small towns East Angus , Richmond , Windsor
The catchment area of ​​the Rivière Saint-François

The catchment area of ​​the Rivière Saint-François

The Rivière Saint-François is a right tributary of the Saint Lawrence River in the south of the Canadian province of Québec .

280 km long, according to Francis of Assisi named River drains an area of 10,230 square kilometers, of which 14% to inflows in the south bordering the US state of Vermont .

The river has its source in Lac Saint-François in the foothills of the Appalachian Mountains , around 15 km south of the town of Thetford Mines . The Barrage Allard is located at the outflow of the Lac Saint-François. It initially flows in a south-westerly direction. It flows through the Lac Aymler reservoir , which is dammed by the Aymler Barrage . Shortly before Sherbrooke it describes a striking 90 ° bend and turns northwest into the flat plain of the Saint Lawrence Valley. Here its main tributaries flow into the river from the left: Rivière Massawippi and Rivière Magog . About 15 kilometers above Drummondville , a bend in the river has the shape of a duck's head and is accordingly known as "le Bec du Canard". At the village of Pierreville , the river finally flows into Lac Saint-Pierre , which forms part of the river. One kilometer southwest of the mouth of the Saint-François is that of the Rivière Yamaska .

Hydropower plants

The 225 m gradient of the Rivière Saint-François is used by several hydropower plants with a total installed capacity of more than 55 MW.

There are two hydro-Québec (HQ) hydroelectric power stations on the river .

Hydro-Sherbrooke operates two smaller hydropower plants on the Rivière Saint-François - at Weedon ( ) and at Westbury ( ).

Boralex operates a run-of-river power plant ( ) near East Angus . The power plant from 1898 was renewed in 1992. It has an installed capacity of 2 MW with a fall height of 5.3 m.

Another hydropower plant ( ) was commissioned on January 21, 1996 near Windsor . It has 5 Kaplan turbines with a total output of 5.5 MW and uses a head of 5.6 m.

The Barrage de la Chute-Hemmings ( ) was completed in 1924. It has a height of 18 m, a length of 701 m and a storage volume of 20 million m³.

The Barrage de Drummondville ( ) was built in 1914, has a height of 22 m, a length of 919 m and a storage volume of 1 million m³.

At Bromptonville , northwest of Sherbrooke, the Barrage Larocque is on the river. The hydropower plant located there ( gelegene ) has an output of 9.9 MW and is operated by Kruger Energy .

The hydropower plants in the downstream direction:

Surname completion
position
Power
[MW]
Number of
turbines
Drop
height
[m]
operator
Weedon 1914-1915 / 1993 3.7 6th 10 Hydro-Sherbrooke
Westbury 1929 4.8 2 10 Hydro-Sherbrooke
East Angus 1898/1992 2.0 n / A 5.3 Boralex
Bromptonville 9.9 Kruger Energy
Windsor 1996 5.5 5 5.6 Innergex
Chute hemmings 1925 29 6th 14.64 HQ
Drummondville 1910-1925 16 4th 9.10 HQ

Web links

Commons : Rivière Saint-François  - Collection of images, videos and audio files

Individual evidence

  1. a b c The Atlas of Canada - Rivers
  2. Water Survey of Canada: Station 02OF002  ( page no longer available , search in web archivesInfo: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / www.wsc.ec.gc.ca  
  3. Hydro-Sherbrooke - Centrale Westbury ( Memento of the original from December 16, 2012 in the web archive archive.today ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.ville.sherbrooke.qc.ca
  4. ^ Hydro-Québec - Hydroelectric Generating Stations
  5. Hydro-Sherbrooke - Centrales ( Memento of the original from June 27, 2010 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. @1@ 2Template: Webachiv / IABot / www.ville.sherbrooke.qc.ca
  6. a b boralex.com (PDF)
  7. innergex.com
  8. Commission de toponymie du Quebec - Barrage de la Chute-Hemmings
  9. Commission de toponymie du Quebec - Barrage de Drummondville
  10. ^ Hydro Bromptonville . Kruger Energy. Retrieved October 13, 2018.