Sèvre Niortaise

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Coordinates: 46°18′30″N 1°7′48″W / 46.30833°N 1.13000°W / 46.30833; -1.13000
Sèvre Niortaise
River
The Sèvre Niortaise near Niort
The Sèvre Niortaise near Niort
Country France
Regions Nouvelle-Aquitaine, Pays de la Loire
Departments Deux-Sèvres, Vendée, Charente-Maritime
Communes Saint-Maixent-l'École, Niort, Damvix, Marans
Tributaries
 - left Lambon, Mignon
 - right Autise, Vendée
City Niort
Source
 - location Sepvret, Deux-Sèvres, Nouvelle-Aquitaine, France
 - elevation 150 m (492 ft)
 - coordinates 46°17′32″N 0°6′9″W / 46.29222°N 0.10250°W / 46.29222; -0.10250
Mouth Atlantic Ocean
 - location north of La Rochelle, Charente-Maritime, Nouvelle-Aquitaine, France
 - elevation m (0 ft)
 - coordinates 46°18′30″N 1°7′48″W / 46.30833°N 1.13000°W / 46.30833; -1.13000
Length 158.4 km (98 mi)
Basin 3,650 km² (1,409 sq mi)
Discharge for Niort
 - average 11.60 /s (410 cu ft/s)
Wikimedia Commons: Sèvre Niortaise

The Sèvre Niortaise is a river in western France, flowing into the Atlantic Ocean.

It starts in the Deux-Sèvres department (named "Two Sèvres" after this and the Sèvre Nantaise) and flows through Niort (that is the origin of the second part of the river's name).

Geography[change | change source]

The Sèvre Niortaise river has a length of 158.4 km (98 mi) and a drainage basin with an area of approximately 3,650 km2 (1,409 sq mi).[1]

Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is 11.60 m3/s (410 cu ft/s) at Niort.[2]

Average monthly discharge (m3/s) at Niort

Course[change | change source]

The Sèvre Niortaise starts in the commune of Sepvret in the Deux-Sèvres department, at an elevation of about 150 m (492 ft).[3]. It then flows to the northwest through the departments of Vendée and Charente-Maritime.

Finally, the river flows into the Atlantic Ocean to north of the city of La Rochelle.[4]

The Sèvre Nantaise flows through 2 regions, 3 departments and 38 communes:[1]

Main tributaries[change | change source]

The main tributaries of the Sèvre Niortaise river are:[1]

Left tributaries:

  • Lambon - 40.8 km
  • Mignon - 45.9 km

Right tributaries:

  • Vendée - 82.5 km

Gallery[change | change source]

Related pages[change | change source]

References[change | change source]

  1. 1.0 1.1 1.2 "La Sèvre Niortaise N---006-)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 23 August 2016.
  2. "La Sèvre Niortaise à Niort (La Tiffardière)" (in French). Banque Hydro. Retrieved 19 April 2017.
  3. "Source de la Sèvre Niortaise" (in French). Géoportail. Retrieved 23 August 2016.
  4. "Confluence de la Sèvre Niortaise" (in French). Géoportail. Retrieved 23 August 2016.

Other websites[change | change source]