Route nationale française 530

Route nationale 530
Ancien panneau sur la RN530.© Bernard Ingelmunster
Localisation
Pays	France
Région	Auvergne-Rhône-Alpes
Caractéristiques de 1933 à 1973
Itinéraire	Les Clapiers - La Bérarde
Longueur	26,7 km

Présentation

• La route nationale 530, ou RN530, est une ancienne route nationale française qui reliait Le Clapier à La Bérarde.

Historique

Généralités

• A sa création, en 1933, elle est définie comme la route de Bourg-d'Oisans à La Bérarde.
• Elle est issue du chemin de grande communication n° 119 de l'Isère, ou Gc119 (38), pour la section comprise entre Le Clapier et Le Bourg d'Arud, et du chemin de grande communication n° 239, ou Gc239 (38), pour la section comprise entre Le Bourg d'Arud et La Bérarde.
• Le trajet de Bourg-d'Oisans au Clapier se faisait alors via la N91.
• Suite à la réforme de 1972, elle a été déclassée en D530.

Construction

• Section Le Bourg-d'Arud - Plan-du-Lac : 1883.
• Section Plan-du-Lac - Saint-Christophe-en-Oisans : 1896.
• Section Saint-Christophe-en-Oisans - Champhorent : 1913.
• Section Champhorent - Les Étages : 16 novembre 1920.
• Section Les Étages - La Bérarde : 13 juillet 1921.

Aménagements

• Rectification de la Combe Chevrière : 1981.

Anecdotes

• La section conduisant à La Bérarde a été ouverte complètement en 1921. Très étroite et vertigineuse à mesure qu'elle s'enfonce dans la vallée, la route ne permet pas le croisement des véhicules sur son parcours. De nombreux refuges, ou garages, ont été aménagés à cette fin. De plus, des horaires de montée et de descente sont mis en place en saison.
• Cette route se situe le long de plusieurs couloirs d'avalanches. Elle est donc partiellement fermée une bonne partie de l'année à cause de la neige et des éboulements de toutes sortes.

Autour de la route

• Parc National des Écrins.
• Gorges du Vénéon.

Tracé historique

Chargement de la carte...

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Légende de la carte ou du tableau
En rouge	Tracé de 1933 à 1973.
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.

• Isère (38) - D530
  • D1091 Auris Le Clapier
  • Les Deux Alpes
    • Les Ougiers
    • Vénosc
    • Le Bourg-d'Arud
    • Le Vénéon
    •   Lacets
  • Le Vénéon
  • Saint-Christophe-en-Oisans
    • Plan-du-Lac
    • Lac   Cascade
    •   Nombreux Lacets
    • Torrent du Diable Pont du Diable
    • La Ville (1462 m) Musée Mémoires d'Alpinismes   Lacets
    •  
    • Pré-Clot
    • Champhorent Cascade de la Lavey
    • Les Étages (1594 m)
    • La Bérarde   (1700 m)