The Sèvre and its tributaries now belong to the IISBN and are managed by that organisation.
IISBN: 05 49 06 79 79 - permanent number 7/7 from 9 a.m. to 6 p.m.: 06 64 48 45 04
Navigation Conditions on the Sèvre Niortaise and its Tributaries. Due to the silting up of the Sèvre and its tributaries and the increasing demands of the farmers for irrigation, navigation has become difficult and often impossible on the following sections:
- The Vieille Sèvre upstream from Bertholière (see page 26);
- the link from the Sèvre to the Sabon Canal has silted up. It is no longer possible to go round the Charoin Island (p 27);
- The Jeune Autize. It is no longer possible to go upstream from Maillezais (p 43);
- the Canal du Mignon. It is no longer possible to go beyond La Grève-sur-Mignon (p 54);
- The Vieille Autize. You can get as far as Courdault but, in summer, this river is frequently dry upstream from Saint-Arnaud (p 29).
The Canal from Marans to La Rochelle. This canal, put into service in 1875, was taken off the list of navigable waterways in 1957. Since then, a few low bridges have definitively put an end to any attempts at navigation. Its other structures, including the Saint-Leonard tunnel, are in quite good shape and some of them have even been restored.
The restoration of navigation conditions is part of the scheme proposed by the IISBN to enable them to recover the label “natural regional park” for the Marais poitevin. We will keep you informed of any news.
The locks of Tiffadière (p 37), la Roussille and Comporté are automatic. The others are manual and self-operated. The lift bridges are operated by a remote control unit.
Lock Opening Hours Out of season (from 16/10 to 30/04), the locks are in service from 9 a.m. to 5 p.m.. Due to the recent changes in the management system for the Sèvre and its tributaries, the summer opening hours are not yet available.
- Carré d’Or Lock: locking through by appointment from Monday to Friday from 9 a.m. to 4 p.m.
- The Brault lock: going down, 1 hour before full tide at La Rochelle. Going up: at the moment of the full tide at La Rochelle.
Pages 20, 21 and 24. The lock of the Enfrenaux, at the end of the old arm of the Sèvre, is out of service and there are no plans to put it back into operation. For this reason, you should not take this arm unless you have a boat rapid enough to go out and back during the two hours of high tide.
Changed telephone numbers:
- Brault lock: 06 64 49 29 60
- Saint-Arnault lock: 02 51 87 90 64
Changed telephone numbers:
- Tourist Office: 05 46 01 12 10
- Port Office: 05 46 01 02 99 ou 06 25 79 16 35
- Les Trois Caps Shipyard: 06 60 65 39 90 or Dépôt du Marin: 05 46 01 66 79
In the port:
- TLM : 06 66 92 18 04
- Marais Plaisance : 05 46 01 04 07
- Marais poitevin moorings: 06 43 83 78 35
- The restaurants “La Scala” and “le Marandais” no longer exist.
- The restaurant “Le Presbytère” no longer exists.
- The restaurant “La Bosselle” is now called the “Les 2 Saions”: 09 62 61 40 61
- The restaurant “Le Petit Maraïchaud” no longer exists.
- The restaurant “Auberge de l’Écluse” has a new number: 05 49 35 90 12
- The lifting bridge is now automatic
- The boat centre is well equipped and has a wide launching ramp: 05 49 79 01 93
The Jeune Autize: on the left bank a new lock of standard dimensions has been built doubling the small lock which was only available to very small boats. You can now reach Maillezais.