Route départementale française D21 (01)

Route départementale D21 (01)
Signalisation sur la D21. © Google Street View
Localisation
Pays	France
Département	Ain (01)
Caractéristiques actuelles
Itinéraire	Tenay - Le Montoux
Longueur	26 km

Présentation

• La route départementale D21 (01), ou RD21 (01), est une route départementale de l'Ain (01) qui va de Tenay au Montoux (C^ne de Brénod).

Historique

• La première route à avoir porté ce numéro, en 1847, est la route de Chalamont à Montluel. Elle deviendra la D22 actuelle.
• La D21 actuelle est issue du Gc21 de Tenay à Brénod par Hauteville. Le Dictionnaire Topographique et Historique de Pommerol (1907), cité par les Archives Départementales de l'Ain, nous apprend que Brénod est situé à 830 m. d’altitude sur le chemin de G. C. n° 21, de Tenay au chemin 31 par Brénod ; [le chef-lieu] s’étend le long de ce chemin sur près d’un k. de longueur et compte 502 hab.
• Hauteville-Lompnes est déviée en 1983.

Autour de la Route

• Gorges de l'Albarine

Tracé

Chargement de la carte...

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Légende de la carte ou du tableau
En jaune	Tracé de la D21 (01)
Pour plus d'informations sur les sources cartographiques, consulter cet article.
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• Ain (01) - D21
  • D1504 Tenay
  • Gorges de l'Albarine
  • Plateau d'Hauteville
    • Chute de Nantuy
    •  Golet du Thioux (736 m)
    • Nantuy
    • Hauteville-Lompnes D8
  • Champdor
  •  Pont de Chaley (24 m) L'Albarine
  • Brénod
  • Le Montoux D31