Route nationale française 146

Route nationale 146
Plaque de cocher à Saint-Pourçain-sur-Sioule.© Dark green67
Localisation
Pays	France
Régions	Auvergne-Rhône-Alpes - Bourgogne-Franche-Comté
Caractéristiques de 1824 à 1973
Itinéraire	Montmarault - Varennes-sur-Allier
Longueur	34 km
Caractéristiques de 1978 à 2006
Itinéraire	Liaison A6 - N6 à l'Est d'Avallon
Longueur	3 km

Présentation

• La route nationale 146, ou RN146, est une ancienne route nationale française qui a connu deux parcours bien distincts au cours du temps.

Histoire

Généralités

• À sa création, en 1824, elle est décrite comme étant la route de Limoges à Varennes. Elle s'embranche au delà et près de Montmarault, sur la route précédente, n° 145, et joint avant d'entrer à Varennes la route n° 7, de Paris à Antibes. Elle succède alors à la Route impériale 166.
• À l'origine, elle reliait donc Montmarault à Varennes-sur-Allier. Suite à la réforme de 1972, elle a été déclassée en D46 dans l'Allier (03).
• Le numéro a ensuite été réattribué en 1978 à la courte bretelle reliant l'autoroute A6 à la route nationale 6 à l'Est d'Avallon, anciennement appelée RN6^A.
• Elle est définie en 1978 comme étant la route d'Avallon, N. 6, à Avallon, A. 6.
• Suite à la réforme de 2005, elle a été déclassée en D646 dans l'Yonne (89).

Construction

• Section Saint-Marcel-en-Murat - Beauron-d'en Bas : vers 1851.
• Section La Juche - La Jolivette : 1835.
• Section Les Champs-Callons - Bransat : 1839.
• Abords de Saint-Pourçain-sur-Sioule : 1839.
• Section Allier - Chazeuil : 1837.

Aménagements

• Rectification à l'Est de Saint-Marcel-en-Murat : 1982.
• Rectification des virages de Doulauvre : 1984.
• Rectification à l'Ouest des Bordes : 1978.
• Rectification de Codret : 1978.
• Rectification de Chazeuil : 2007.

Tracé historiques

Liaison A6 - RN6 à l'Est d'Avallon (avant 2006)

Chargement de la carte...

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Légende de la carte ou du tableau
En rouge	Tracé de 1978 à 2006.
Pour plus d'informations sur les sources cartographiques, consulter cet article.
La carte ne s'affiche pas ? Merci d'éditer l'article et de le sauvegarder sans aucune modification.

• Yonne (89) - D646
  •  A6 E15 E60   22 
  •   Gare de péage d'Avallon 
  • D50
  •  D606 Avallon ; Cussy-les-Forges, Saulieu,  Lyon,  Valence

Montmarault - Varennes-sur-Allier (avant 1973)

Chargement de la carte...

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Légende de la carte ou du tableau
En rouge	Tracé avant 1973.
En rouge clair	Tracé dévié dans les années 1930 pour la construction d'une ligne de chemin de fer.
En jaune	Tracé rectifié après 1973.
En bleu ciel	Tracé rectifié au cours du XIXe siècle.
En violet	Tronc commun avec la RN9.
Pour plus d'informations sur les sources cartographiques, consulter cet article.
La carte ne s'affiche pas ? Merci d'éditer l'article et de le sauvegarder sans aucune modification.

• Allier (03) - D46
  •  A71 E11 E62   11   A79 E62 D945 D2371  Montmarault Église, Château
  • La Courtine
  • Saint-Marcel-en-Murat D42
  • Le Venant
  • Voussac
  •  Forêt de Vacheresse
  • Maison Forestière de la Forêt de Vacheresse D22
  • Doulauvre
  • Les Bordes La Bordes
  • Reugny
  • Bransat
  • Venteuil
  • Saint-Pourçain-sur-Sioule Tour de l'Horloge, Église Sainte-Croix La Sioule D1 D987 D2009
  • Villemouze
  • L'Allier
  •  N7
  • Chazeuil N7