Drac

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Drac
The river in the greater Grenoble area

The river in the greater Grenoble area

Data
Water code FR :  W2-0200
location France , regions Provence-Alpes-Cote d'Azur and Auvergne-Rhône-Alpes
River system Rhône
Drain over Isère  → Rhône  → Mediterranean
source Pelvoux massif, in the municipality of Orcières
44 ° 39 ′ 18 ″  N , 6 ° 24 ′ 57 ″  E
Source height approx.  2430  m
muzzle on the municipal boundary of Sassenage and Saint-Égrève in the Isère Coordinates: 45 ° 12 ′ 58 ″  N , 5 ° 40 ′ 29 ″  E, 45 ° 12 ′ 58 ″  N , 5 ° 40 ′ 29 ″  E
Mouth height approx.  207  m
Height difference approx. 2223 m
Bottom slope approx. 17 ‰
length 130 km
Catchment area 3626 km²
Discharge at the Fontaine gauge MQ
 98 m³ / s
Left tributaries Souloise , Ébron , Gresse
Right tributaries Drac de Champoléon, Séveraisse , Bonne , Romanche
Reservoirs flowed through Lac du Sautet , Lac de Saint-Pierre-Cognet , Lac de Monteynard-Avignonet , Lac de Notre-Dame-de-Commiers
Big cities Grenoble
Medium-sized cities Échirolles , Fontaine
Small towns Le Pont-de-Claix , Seyssins

The Drac is a river in France that runs in the Provence-Alpes-Côte d'Azur and Auvergne-Rhône-Alpes regions. Its main source, the Drac Noir, has its source in the Pelvoux massif, on the northwest flank of the Crête de la Dent mountain range , near the Col des Tourettes (2582 m). The source is in the Écrins National Park , in the Orcières municipality . The Drac initially drains northwest through the Champsaur landscape , later swings in a northerly direction, crosses the greater Grenoble area and flows into the Isère as a left tributary after 130 kilometers just northwest of it at the municipal boundary of Sassenage and Saint-Égrève . The Drac crosses the Hautes-Alpes and Isère departments on its way . It runs about 90 km along the Route Napoléon .

In the upper reaches of the river is the water intake of the Gap Canal , which carries water into the neighboring valley of the Durance .

Places on the river

Web links

Commons : Drac  - 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 length of the river is based on the information about the Drac from SANDRE (French), accessed on February 10, 2011, rounded to full kilometers.
  3. ↑ hydro.eaufrance.fr (station: W2832020 , option: Synthèse )