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The Canal des Ardennes (Ardennes Canal) is a Summit level canal built to the Freycinet gauge between the river valleys of the Aisne and the Meuse. ==Physical Characteristics== The Canal des Ardennes is 87.779 km long and has 44 locks (37 on the Aisne side and 7 on the Meuse side) with a tunnel to Saint-Aignan. The Canal connects the village of Pont-à-Bar in the Dom-le-Mesnil commune (08) to the commune of Vieux-lès-Asfeld (08). The first part of the canal is 39 km long ando crosses the threshold between the valleys of the Meuse and the Aisne by following the Bar Valley, diverting briefly at Saint-Aignan for a shortcut through a tunnel. On this part to the summit level it is powered by a supply of water from the Lac de Bairon and water pumped from the Meuse. After the summit is reached it quickly descends to the Aisne by a series of 26 locks over just 9 km. From Semuy the canal closely follows the course of the Aisne. In places it even follows the old river bed and has many turns as the river has been diverted into very straight sections. On the Aisne side it is powered by regular water intake from the river (the Vouziers, Rilly, Givry, Biermes, and Asfeld dams). On the Aisne side there is a branch 12.066 kilometres long for a drop of nearly 9 m. This is the Vouziers Branch, also called the Canal de Vouziers. This branch leads from Vouziers to Semuy along the Aisne and has 4 locks. The canal has the distinction of having two separate parts and two series of locks, as if it was composed of two distinct canals. The first is the portion from the Meuse to the Aisne river at the junction to the Vouziers Branch (Pont-à-Bar to Semuy, 39 km) with the second part entirely parallel to the Aisne beginning at Vouziers and continuing parallel to the Aisne to Semuy (59 km). *Altitude at Vieux-lès-Asfeld: 60.55 metres. *Altitude at Pont-à-Bar: 151.30 metres. *Altitude at the summit level: 165 metres. *Average drop of locks: 2.68 metres. * *Aisne side: 2.70 metres. * *Meuse side: 2.57 metres. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Canal des Ardennes」の詳細全文を読む スポンサード リンク
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