Gardiner dam
| Gardiner dam | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 |
|||||||||
|
|||||||||
|
|||||||||
| Coordinates | 51 ° 16 '12 " N , 106 ° 52' 15" W | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1959-1967 | ||||||||
| Height of the barrier structure : | 64 m | ||||||||
| Building volume: | 65.44 million m³ | ||||||||
| Crown length: | 5 000 m | ||||||||
| Power plant output: | 186 MW | ||||||||
| Data on the reservoir | |||||||||
| Altitude (at congestion destination ) | 556.87 m | ||||||||
| Water surface | 430 km² | ||||||||
| Reservoir length | 225 km | ||||||||
| Storage space | 9400 million m³ | ||||||||
| Catchment area | 136 000 km² | ||||||||
| Design flood : | 7500 m³ / s | ||||||||
The Gardiner Dam on the South Saskatchewan River in Saskatchewan , Canada, is one of the largest dams on earth in terms of structure volume. It dams the South Saskatchewan River 25 km from the village of Elbow to Lake Diefenbaker , a large reservoir .
The Canadian Parliament approved the project on September 1, 1958. The first phase of construction began on May 27, 1959, in the presence of John Diefenbaker , Premier Tommy Douglas and about 15,000 other spectators. In 1967 the structure was completed and the lake was created. The dam was officially opened on July 21, 1967, when Canada was celebrating the centenary celebrations. The Province of Saskatchewan became owner on April 1, 1969 and took full control on April 1, 1997. The dam is owned by the Saskatchewan Watershed Authority, which is responsible for operations and maintenance.
The dam is named after James Garfield Gardiner , who was Prime Minister of Saskatchewan from 1926 to 1929 and again from 1934 to 1935 and then a long-time Canadian Federal Minister. The lake is named after John Diefenbaker, a former Prime Minister of Canada. The reservoir has a maximum depth of 66 m with an average depth of 21.8 m. With a surface of 430 km², the shoreline is 760 km long. In addition to the Gardiner Dam, a second, smaller dam, the Qu'Appelle River Dam, which shuts off the Qu'Appelle River, was needed to dam the lake . The combined cost of the two barriers amounted to approximately 120 million Canadian dollars .
A hydroelectric power station , the Coteau Creek hydroelectric station, generates 186 megawatts of electricity. In addition to generating electricity, the water is also used for irrigation, as well as for the municipal water supply and for regulating the runoff of the two rivers, for protection against floods, for recreational purposes and for nature conservation. A third of Saskatchewan's population is dependent on the reservoir's water.
The flood relief of the Gardiner dam consists of 260,000 cubic meters of concrete and can discharge 7,500 cubic meters of water per second. On the shore of the lake, there are three provincial parks : the Danielson Provincial Park, the Douglas Provincial Park and the Saskatchewan Landing Provincial Park.
See also
- List of the largest dams on earth
- List of the largest reservoirs on earth
- List of the largest hydroelectric plants in the world
- List of dams in the world # Canada