Route départementale française D7 (21)

Route départementale D7 (21)
Borne Michelin vers Trouhaut © ChrisMSE
Localisation
Pays	France
Département	Côte-d'Or (21)
Caractéristiques actuelles
Itinéraire	Sombernon - Messigny-et-Vantoux
Longueur	35 km

Présentation

• La route départementale D7 (21), ou RD7 (21), est une route départementale de la Côte-d'Or (21) qui relie Sombernon à Messigny-et-Vantoux par le Val Suzon.

Historique

• Il était prévu dès 1803 d'attribuer ce numéro à la route de Chanceaux à Pontailler par Is-sur-Tille, Mont-sur-Tille, Bèze et Mirebeau. Mont-sur-Tille était le nom attribué à Til-Châtel à la révolution. Cette route deviendra en 1933 la N459.
• La première route à avoir vraiment porté ce numéro dès 1813 fut la route de Dijon à Autun, par Sombernon et Arnay-le-Duc. La partie de Sombernon à Vandenesse sera utilisée en 1837 pour la N77^Bis, le reste devenant N494 en 1933 puis N81 en 1973.
• Vers 1920, la RD7 et le Gc6 (de Messigny à Sombernon) et une partie du Gc11 (D16 actuelle) sont réunis pour former le Gc7.
• La partie nord restante du Gc7 a conservé son numéro. Il est curieux de remarquer que le tronc commun D7-D16 au nord de Sombernon porte le numero D7 alors que celle-ci s'arrête dans ce village sur la D905 et que la D16 continue au sud de ce même village. Cette numérotation D7 (et non D16) était logique avant que le Gc7 ne soit reclassé en RN494 à partir de Vandenesse-en-Auxois en 1933.
• Inversement, il est également curieux de noter qu'avant la fusion des Gc et RD, cette partie était numérotée Gc11 et non Gc6 (Celui-ci avait un numéro plus petit, mais s'arrêtait sur le Gc11). Elle ne fut jamais renumérotée D16, malgré la continuité plus évidente avec cette route aujourd'hui.
• Ce Gc possédait une annexe, le Gc7^B de Blaisy à Turcey, qui est logiquement devenu D7^B .
• On ajouta à la suite une autre annexe, la D7^C qui ne s'embranche d'ailleurs même pas sur la D7 pour desservir Francheville depuis la D971. C'est un ancien Vo. Curieusement, la D7c s'embranche sur la D103 et la D103e s'embranche sur la D7!

Autour de la route

• Val Suzon
• Fontaine de Jouvence

Tracé

Chargement de la carte...

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En jaune tracé actuel, en vert se terminant par leur lettre les annexes.

• Côte-d'Or (21) - D7
  • D905 Sombernon D9 D16 D114 D977^Bis
  • Savranges D16
  • Blaisy-Bas
  •  Ligne de partage des eaux entre La Manche et Mer Méditerranée.
  • D16
  • D10
  • Val-Suzon D971
  • Sainte-Foy
  • Messigny-et-Vantoux D996