Mattagami River
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Mattagami River Rivière Mattagami |
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 Mattagami River at Smooth Rock Falls |
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| Data | ||
| location | Sudbury , Cochrane District in Ontario, Canada | |
| River system | Moose River | |
| Drain over | Moose River → Hudson Bay | |
| origin |
Mattagami Lake 48 ° 0 ′ 45 ″ N , 81 ° 33 ′ 26 ″ W. |
|
| Source height | 330 m | |
| confluence | with the Missinaibi River to the Moose River Coordinates: 50 ° 44 ′ 8 " N , 81 ° 28 ′ 2" W 50 ° 44 ′ 8 " N , 81 ° 28 ′ 2" W |
|
| Mouth height | 48 m | |
| Height difference | 282 m | |
| Bottom slope | 0.64 ‰ | |
| length | 443 km | |
| Catchment area | 37,000 km² | |
| Discharge at the Timmins A Eo gauge : 5540 km² |
MQ 1969/1997 Mq 1969/1997 |
64 m³ / s 11.6 l / (s km²) |
| Discharge at Smooth Rock Falls A Eo gauge : 10,000 km² |
MQ 1920/1997 Mq 1920/1997 |
111 m³ / s 11.1 l / (s km²) |
| Discharge at the Little Long Rapids A Eo gauge : 34,700 km² |
MQ 1963/1994 Mq 1963/1994 |
423 m³ / s 12.2 l / (s km²) |
| Left tributaries | Kamiskotia River , Groundhog River , Kapuskasing River | |
| Small towns | Timmins | |
| Communities | Smooth Rock Falls | |
The Mattagami River ( French Rivière Mattagami ) is a river in the Hudson Bay catchment area in northern Ontario in Canada .
geography
The Mattagami River has a total length of 443 km (from the end of Lake Minissinakwa). The course of the river lies in the area of the Canadian Shield . It flows through Timmins and continues north to Portage Island in the north of the Cochrane District . Here the Mattagami, together with the Missinaibi River, forms the Moose River - about 100 km from its confluence with James Bay . The river flows through the town of Timmins as well as Smooth Rock Falls .
At the point where the Groundhog River and Kapuskasing River flow into the Mattagami River, the Ontario Power Generation operates a dam that is over 5 km long.
The name of the Mattagami River comes from the Ojibwe language and means either “beginning of the water” ( maadaagami ) or “turbulent water” ( madaagami ).
Tributaries
Hydropower plants
Ontario Power Generation (OPG) operates several hydropower plants along the Mattagami River.
In the downstream direction these are:
| Surname | completion position |
Power [MW] |
Number of turbines |
hydraul. Potential [m] |
|---|---|---|---|---|
| Wawaitin | 1912–1918/2010 | 15th | 2 | n / A |
| Sandy Falls | 1911/2010 | 5.5 | 1 | n / A |
| Lower Sturgeon | 1923/2010 | 14th | 2 | n / A |
| Island Falls | under construction | 20th | 2 | 15th |
| Little Long | 1963 | 137 (+66.5) | 2 (+1) | 26.5 |
| Smoky Falls | 1926 / under construction | 267.9 | 3 | 34.8 |
| Harmon | 1965 | 141 (+78.3) | 2 (+1) | 31.1 |
| Kipling | 1966 | 155 (+78.3) | 2 (+1) | 30.5 |
As part of the Lower Mattagami project , OPG has been increasing power plant capacities on the lower reaches of the Mattagami River since 2010. This is done in collaboration with the Moose Cree First Nation .
The Smoky Falls hydropower plant has been renewed since 2011 and will receive 3 turbines with a total output of 267.9 MW. Since 2010, the Harmon and Kipling hydropower plants have each received an additional 78.3 MW turbine, and Little Long an additional 66.5 MW turbine.
In addition, the Wawaitin , Sandy Falls and Lower Sturgeon hydropower plants on the upper reaches of the Mattagami River were completed at the end of 2010 and replace obsolete previous structures. With Island Falls , a new hydropower plant is being built on the river.
Web links
- Mattagami Region Conservation Authority
- Ontario Power Generation - Mattagami River
- Mattagami River at the Timmins gauge (1965–1968) - hydrographic data from R-ArcticNET
- Mattagami River at the Smoky Falls gauge (1926–1963) - hydrographic data from R-ArcticNET
Individual evidence
- ↑ a b c The Atlas of Canada - Rivers
- ↑ Mattagami River at the Timmins gauge - hydrographic data from R-ArcticNET
- ↑ Mattagami River at the Smooth Rock Falls gauge - hydrographic data from R-ArcticNET
- ↑ Mattagami River at the Little Long Rapids gauge - hydrographic data from R-ArcticNET
- ^ Ontario Ministry of Natural Resources - boreal wilderness
- ↑ Ontario Power Authority ( Memento of the original from January 1, 2012 in the Internet Archive ) Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Ontario Power Generation - Lower Mattagami River Hydroelectric Project
