Autise

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Autise
Autize
Watermill in Nieul-sur-Autise

Watermill in Nieul-sur-Autise

Data
Water code FR :  N --- 0070 , FR :  N5205000
location France , Nouvelle-Aquitaine regions and Pays de la Loire
River system Sèvre Niortaise
Drain over Sèvre Niortaise  → Atlantic Ocean
source at Mazières-en-Gâtine
46 ° 32 ′ 40 ″  N , 0 ° 20 ′ 40 ″  W Coordinates: 46 ° 32 ′ 40 ″  N , 0 ° 20 ′ 40 ″  W
Source height approx.  186  m
muzzle into the Sèvre Niortaise in 2 estuaries (Vieille Autise and Jeune Autise)
Mouth height approx.  4  m
Height difference approx. 182 m
Bottom slope approx. 2.7 ‰
length 67 km
Left tributaries Miochette, hem location
Navigable Jeune Autise and Canal de la Vieille Autise

The Autise (other spelling: Autize ) is a river in France that runs in the Nouvelle-Aquitaine region , Deux-Sèvres department, and the Pays de la Loire region , Vendée department .

course

It rises at a height of 168 meters at Mazières-en-Gâtine and flows into the Sèvre Niortaise as a right tributary after 67 kilometers . It is divided by a weir between Nieul-sur-l'Autise and La Porte de l'Île .

The eastern and mostly dry arm continues as the Vieille Autise and reaches the Canal de la Vieille Autise at Saint-Sigismond , which it accompanies to its confluence with the Sèvre Niortaise, at La Barbée , west of Damvix .

The western arm ( Jeune Autise ) is a largely artificial watercourse, carries most of the water and also flows into the Sèvre Niortaise at Maillé .

Places on the river

navigability

  • Canal de la Vieille Autise
    It essentially consists of the canalised estuary Vieille Autise. It is 10 kilometers long and extends from its confluence with the Sèvre Niortaise near La Barbée to a small harbor basin in the village of Courdault . The only lock Saint-Arnaud measures 31.50 x 5.10 meters. The normal water depth is 1.20 meters, but it drops to 0.80 meters in summer when it is dry.
  • Jeune Autise
    The navigable section is around 9 kilometers long and extends from the confluence with the Sèvre Niortaise near Maillé to the harbor basin in the small village of Souil . Due to the small dimensions of the only lock, Maillé , 7 × 3 meters and a depth of 0.50 meters, the Jeune Autise can only be accessed by very small boats.

Individual evidence

  1. ↑ a b geoportail.fr (1: 16,000)
  2. ↑ a b The information on the river length is based on the information about the Autise at SANDRE (French), accessed on April 13, 2013, rounded to full kilometers.