Arre (river)

watercourse

The Arre is a river in southeastern France, in the Gard department in the Occitanie region. It is a right tributary of the Hérault river.

Arre
The Arre through Le Vigan
Location
CountryFrance
RegionOccitanie
DepartmentGard
CommunesAvèze, Le Vigan
Physical characteristics
SourceCévennes
 - locationAlzon
 - coordinates43°58′0″N 3°27′10″E / 43.96667°N 3.45278°E / 43.96667; 3.45278
 - elevation750
MouthHérault
 - locationSaint-André-de-Majencoules
 - coordinates43°59′42″N 3°40′33″E / 43.99500°N 3.67583°E / 43.99500; 3.67583
 - elevation180 km (110 mi)
Length23.6 km (14.7 mi)
Basin size174 km2 (67 sq mi)
Discharge 
 - locationLe Vigan
 - average5.30 m3/s (187 cu ft/s)
Basin features
Tributaries 
 - leftCoudoulous

Geography

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The Arre river has a length of 23.6 km (14.7 mi) and a drainage basin with an area of 174 km2 (67 sq mi).[1]

Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is 5.30 m3/s (187 cu ft/s) at Le Vigan in the Gard department.[2]

Average monthly discharge (m3/s) at Le Vigan

Course

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The Arre starts in the commune of Alzon, Gard department in the Cévennes National Park between the places called Roc de Berdu, Boucaret and Case Vieille, at an altitude of about 750 m (2,461 ft).[3] From here, the river flows in general to the east.

The Arre joins, as a right tributary, the Hérault river in the commune Roquedur, near the small town of Pont d'Hérault (commune of Saint-André-de-Majencoules), at an altitude of about 180 m (591 ft).[4]

The river flows through the Gard department, in the Occitanie region, and through a total of 9 communes: Alzon, Arre, Arrigas, Aumessas, Avèze, Bez-et-Esparon, Molières-Cavaillac, Saint-André-de-Majencoules, Le Vigan.[1]

Main tributaries

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The only important tributary of the Arre is the Coudoulous, a left tributary 12.6 km (7.8 mi) long.[5]

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References

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  1. 1.0 1.1 "L'Arre (Y2010500)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Archived from the original on 3 March 2016. Retrieved 16 March 2017.
  2. "L'Arre au Vigan [La Terrisse]" (in French). Banque Hydro. Archived from the original on 3 March 2016. Retrieved 16 March 2017.
  3. "Source de l'Arre" (in French). Géoportail. Retrieved 16 March 2017.
  4. "Confluence de l'Arre et l'Hérault" (in French). Géoportail. Retrieved 16 March 2017.
  5. "Le Coudoulous (Y2010560)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Archived from the original on 3 March 2016. Retrieved 16 March 2017.