Английская Википедия:Dorlay
Шаблон:Infobox river The Dorlay (Шаблон:IPA-fr) is a river that flows through the Loire department, France. It is a tributary of the Gier, which in turn is a tributary of the Rhône. The Gier valley was formerly heavily industrialized with coal and iron mines and factories.
Basin
The Dorlay rises in Mont Pilat.Шаблон:Sfn It is Шаблон:Convert long.[1] Tributaries are the Artiole, Mornante and Sellon.Шаблон:Sfn The Mornante and Sellon are known for the presence of white-clawed crayfish, a heritage species. The catchment area is about Шаблон:Convert The source of the river is at an altitude of over Шаблон:Convert, while the average elevation of the basin is Шаблон:Convert The upper part of the basin is forested or pastureland.Шаблон:Sfn
Communities
A manuscript of 1200 gives the river the Latin name of Dorleum. In 1224 it is called Aqua de Dorllei. Subsequent mentions call it Rivus de Dorlay (1359), Dorleys (1527), Dourley (1718) and Dourlay (1789).Шаблон:Sfn It flows through the communes of La Grand-Croix, Saint-Paul-en-Jarez, Lorette, La Terrasse-sur-Dorlay and Doizieux.[1] In the past, the river powered many weaving workshops in the valley.Шаблон:Sfn
Dam
Construction of a dam on the Dorlay by the town of Rive-de-Gier was discussed in 1884 but the project was abandoned due to cost.Шаблон:Sfn
Today's Barrage du Dorlay is located at Шаблон:Coord on the river between Doizieux and La Terrasse-sur-Dorlay. It was built between 1971 and 1973. The dam has a storage capacity of Шаблон:Convert, with a catchment area of about Шаблон:Convert.Шаблон:Sfn It is at an altitude of about Шаблон:Convert.Шаблон:Sfn The dam supplies potable water to the municipalities of Lorette, Chateauneuf, Chagnon, Cellieu, St-Paul-en-Jarez, La Grand-Croix and part of Rive-de-Gier. In 2008 it supplied about Шаблон:Convert of water to about 22,630 people.Шаблон:Sfn Since the dam is used for drinking water, swimming is not allowed - but some people swim anyway. Some local people use the dam for canoeing, but there are no rental boats.Шаблон:Sfn
Coal
In 1730 a large coal seam was found along the Dorlay. A number of mines were sunk to a depth of Шаблон:Convert or more. These were worked for a short period, then abandoned due to lack of pumping equipment. Mining resumed in 1776 with pumps operating, but was abandoned in 1792 due to the volume of water entering the mines from the Dorlay.Шаблон:Sfn The river's path marks a geological fault in the Loire coal basin.Шаблон:Sfn In 1838 the Saint-Philippe mines were sunk on the right bank of the Dorlay to a depth of Шаблон:Convert, but did not find any significant coal deposits.Шаблон:Sfn
References
Citations Шаблон:Reflist Sources Шаблон:Refbegin
- Шаблон:Cite book
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- Шаблон:Cite web
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