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Sèvre Niortaise
Sèvre niortaise.jpg
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
 - left Lambon, Mignon
 - right Autise, Vendée
City Niort
 - 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)

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).


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).

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.

Average monthly discharge (m3/s) at Niort


The Sèvre Niortaise starts in the commune of Sepvret in the Deux-Sèvres department, at an elevation of about 150 m (492 ft). 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.

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

Main tributaries

The main tributaries of the Sèvre Niortaise river are:

Left tributaries:

  • Lambon - 40.8 km
  • Mignon - 45.9 km

Right tributaries:

  • Vendée - 82.5 km


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