Route impériale 170

Route impériale 170De Poitiers à Saintes
Localisation
Pays	France
Région française	Nouvelle-Aquitaine
Caractéristiques de 1811 à 1824
Itinéraire	Lusignan - Melle - Saint-Julien-de-l'Escap
Longueur	74,7 km

Présentation

• A sa création le 16 décembre 1811, la Route impériale 170 est une route impériale française de III^e classe qui est définie comme la route de Poitiers à Saintes. Elle s’embranche à Lusignan, sur la route de Paris à Rochefort, n° 12, et va joindre la route de Périgueux à La Rochelle, n° 159, un peu avant d'entrer dans la ville de Saint-Jean-d'Angély.
• Lors de la renumérotation de 1824, elle est devenue la Route royale 150.
• Constamment négligé depuis plus de deux siècles avec notamment l'absence de déviations, l'axe napoléonien correspond de nos jours intégralement à la route actuelle.

Localisation

Chargement de la carte...

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Légende de la carte ou du tableau
En rouge	Tracé de 1811 à 1824.
Pour plus d'informations sur les sources cartographiques, consulter cet article.
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Détail du parcours

• Vienne (86) - D150
  • Lusignan D611 D742
  • Le Grand-Breuil

• Deux-Sèvres (79) - D950
  • Chenay
  • La Sèvre Niortaise
  • Chey La Sèvre Niortaise
  • La Montée Rouge
  • La Barre
  • Le Coudray
  • Saint-Léger de la Martinière
  • Melle D737 D948
  • Charzay La Berlande
  • Brioux-sur-Boutonne La Boutonne D740
  • Le Pontioux

• Charente-Inférieure (17) - D950
  • La Villedieu
  • Aulnay
  • Grand-Virollet La Saudrenne
  • Le Padôme
  • Les Églises-d'Argenteuil
  • Poursay-Garnaud
  • Saint-Julien-de-l'Escap La Boutonne D939