Arc (Isere)

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Arc
The river at Saint-Michel-de-Maurienne

The river at Saint-Michel-de-Maurienne

Data
Water code FR :  W10-0400
location France , Auvergne-Rhône-Alpes region
River system Rhône
Drain over Isère  → Rhône  → Mediterranean
source Vanoise massif , in the municipality of Bonneval-sur-Arc
45 ° 24 ′ 20 ″  N , 7 ° 9 ′ 12 ″  E
Source height approx.  2760  m
muzzle in the municipality of Chamousset in the Isère coordinates: 45 ° 33 ′ 47 ″  N , 6 ° 12 ′ 12 ″  E 45 ° 33 ′ 47 ″  N , 6 ° 12 ′ 12 ″  E
Mouth height approx.  295  m
Height difference approx. 2465 m
Bottom slope approx. 19 ‰
length approx. 127 km
Catchment area 1985 km²
Discharge at the Saint-Michel-de-Maurienne
A Eo gauge : 939 km² 		MQ
Mq
 		31 m³ / s
33 l / (s km²)
Left tributaries Neuvache , Valloirette , Arvan , Glandon
Right tributaries Doron de Termignon
Small towns Saint-Jean-de-Maurienne

The Arc is a river in France that runs in the Savoie department in the Auvergne-Rhône-Alpes region . Its main source stream Arc Supérieur rises in the Vanoise massif , on the western flank of the Levanna Centrale summit ( 3619  m ), near the border with Italy . The source is below the glacier area Glacier des Sources de l'Arc , in the Vanoise National Park and in the municipality of Bonneval-sur-Arc . The Arc drains the Maurienne landscape in an arc, turning from southwest over west to north, and flows into the Isère as a left tributary after around 127 kilometers in the municipality of Chamousset .

Places on the river

The Arc in the Forts de l'Esseilon near Aussois

Hydrology

On June 14, 1957, the river destroyed numerous dams and bridges in a storm. Many people died in the process. A mean flow rate of 900 m³ / s was measured at Saint-Jean-de-Maurienne. During another storm on September 24, 1993, 400 to 500 m³ / s was measured at the same location.

See also

Web links

Commons : Arc  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b geoportail.fr (1: 16,000)
  2. ↑ a b c The information on the river length is based on the information about the Arc at SANDRE (French), accessed on February 10, 2011, rounded to full kilometers.
  3. ↑ hydro.eaufrance.fr (station: W1034010 , option: Synthèse )