Bonne (Drac)
Bonne | ||
The river below the Pont des Fayettes bridge |
||
Data | ||
Water code | FR : W23-0400 | |
location | France , Auvergne-Rhône-Alpes region | |
River system | Rhône | |
Drain over | Drac → Isère → Rhône → Mediterranean | |
source | in the municipality of Valjouffrey 44 ° 52 ′ 14 ″ N , 6 ° 11 ′ 27 ″ E |
|
Source height | approx. 2760 m | |
muzzle | on the municipal boundary of Ponsonnas and Saint-Pierre-de-Méaroz in the Drac coordinates: 44 ° 52 '52 " N , 5 ° 47' 43" E, 44 ° 52 '52 " N , 5 ° 47' 43" E |
|
Mouth height | approx. 510 m | |
Height difference | approx. 2250 m | |
Bottom slope | approx. 56 ‰ | |
length | 40 km | |
Right tributaries | Malsanne, Roizonne | |
Bonne Viaduct |
The Bonne is a mountain river in France that runs in the Isère department in the Auvergne-Rhône-Alpes region . It rises in the Écrins National Park from the Glacier de Font Turbat glacier , on the southeast flank of the Aiguille de l'Olan summit (3373 m), in the municipality of Valjouffrey . The river generally drains in a westerly direction through the valley of the Valjouffrey , later that of the Valbonnais, and after 40 kilometers it flows into the Drac as a right tributary at the municipal boundary of Ponsonnas and Saint-Pierre-de-Méaroz .
Hydrology
Below La Chapelle en Valjouffrey , water is taken from the river and branched off into the Canal du Beaumont . This irrigation canal connects the valley of the Valbonnais with that of Beaumont, which lies further south in a very poorly irrigated zone and is also fully oriented to the south. Since the Valbonnais, in contrast, is very well supplied by the rich water supply of the Bonne, the canal was planned and built in the 1st half of the 19th century; it opened in 1873. It is still in use today and there is a tourist trail for hikers and cyclists along its route.
Places on the river
- Le Désert en Valjouffrey , municipality of Valjouffrey
- La Chalp , Valjouffrey municipality
- La Chapelle en Valjouffrey , Valjouffrey municipality
- Entraigues
- Valbonnais
- Siévoz
Attractions
- Pont des Fayettes , wooden bridge with roof on the D526, in the municipality of Valbonne.
- Bonne Viaduct , a railway viaduct built in the 1920s , is now used for road traffic and connects the D26 with the D526 (curved course, 7 arches, 180 m long, 55 m high).
- Natura 2000 protected area in the upper reaches north of the river is registered under number FR8201751.
Web links
- Information on the Canal du Beaumont (French)
- Bonne Viaduct. In: Structurae
- Information on the Natura 2000 protected area (French)
Individual evidence
- ↑ Source geoportail.gouv.fr
- ↑ estuary geoportail.gouv.fr
- ↑ a b The information on the length of the river is based on the information about the Bonne at SANDRE (French), accessed on January 23, 2013, rounded to full kilometers.