Route départementale française D73 (69)

Route départementale D73 (69)
La D73 sous le radar du Mont Thou. © Google Maps
Localisation
Pays	France
Département	Métropole de Lyon (69M)
Caractéristiques actuelles
Itinéraire	La Tour-de-Salvagny - Albigny-sur-Saône
Longueur	19 km

Présentation

• La route départementale D73 (69), ou RD73 (69) est une route départementale de la circonscription départementale du Rhône (69) qui relie La Tour-de-Salvagny à Albigny-sur-Saône.
• Elle a été déclassée en plusieurs fois sur environ la moitié de sa longueur. De nos jours, il reste environ 9 km non déclassés entre Saint-Didier-au-Mont-d'Or et Albigny-sur-Saône.
• Elle possède une annexe non déclassée : la D73^E, longue de 5 km, qui traverse Saint-Didier-au-Mont-d'Or du nord au sud jusqu'à la limite avec Lyon 9^e.
• Elle a possédé une autre annexe : la D73^D, mise en service en 1991 et intégrée à la RN489 en 2003.
• Depuis le 1^er janvier 2015, elle est intégralement située sur le territoire de la Métropole de Lyon (69M) qui assure son exploitation en conservant son numéro D73 pour la portion non déclassée jusqu'alors.

Description du tracé

• Historiquement, la D73 débutait dans le centre de La Tour-de-Salvagny, sur l'ancienne RN7 avant sa déviation.
• Elle prenait l'Avenue des Monts-d'Or en direction du nord-est et prenait ensuite le tracé de l'actuelle A89 jusqu'à l'ancien demi-échangeur du Barriot.
• Elle continuait alors vers l'est sur la commune de Dardilly, Route de La Tour-de-Salvagny puis Route de Limonest.
• Lors de l'aménagement de la RN6 autour de l'accès à l'échangeur 33 de l'autoroute A6, la Route de Limonest est devenue une impasse et une portion de la D73 a été détruite. L'itinéraire a donc été dévié par l'Avenue de la Porte de Lyon sans être classé dans le réseau départemental.
• La D73 reprenait la Route de la Garde à Limonest. Cette section a été déclassée en 1999.
• Elle est de nouveau interrompue, cette fois-ci par la D42. Elle reprend 500 m plus loin et a alors une petite portion non-déclassée d'environ 300 m qui correspond à la Route du Mont Verdun. Cette route est rapidement laissée à la D92 et la D73 prenait la Route de la Châtaignière qui a aussi été déclassée en 1999.
• Elle arrive à Saint-Didier-au-Mont-d'Or, au croisement Route de la Barollière - Avenue Ampère - Avenue Jean Jaurès. À partir de ce point la D73 n'est plus déclassée.
• C'est aussi le point de départ de la D73^E qui part vers le sud Avenue Jean Jaurès tandis que la D73 prend l'Avenue Ampère vers le nord.
• Elle entre alors dans un paysage de campagne avec la traversée du massif du Mont-d'Or.
• Elle croise la D92 en haut d'un col situé entre les Monts Thou et Verdun. Ces sommets, les plus hauts des Monts-d'Or, sont facilement reconnaissables, et visibles de loin, grâce à leurs espèce de gros champignons abritant des radars de l'Armée de l'Air.
• La D73 redescend et traverse Poleymieux-au-Mont-d'Or, Curis-au-Mont-d'Or et enfin Albigny-sur-Saône.
• Elle s'achève au bord de la rivière du même nom, face au Pont de Neuville, à l'intersection avec la D51.

Autour de la route

Le Mont Verdun (à gauche) et le Mont Thou (à droite) vus depuis le Mont Cindre. © Wikipedia

•   Le massif du Mont-d'Or
• La Base Aérienne 942 de Lyon-Mont Verdun

Tracé

Chargement de la carte...

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class=\"mw-parser-output\"\u003E\u003Cp\u003ELa-Tour-de-Salvagny\n\u003C/p\u003E\u003C/div\u003E","title":"La-Tour-de-Salvagny\n","link":"","lat":45.81531875384404,"lon":4.71737802028656,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EAlbigny\n\u003C/p\u003E\u003C/div\u003E","title":"Albigny\n","link":"","lat":45.87678151272843,"lon":4.8352450132369995,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ELyon\n\u003C/p\u003E\u003C/div\u003E","title":"Lyon\n","link":"","lat":45.79183752331477,"lon":4.808739423751831,"icon":""}]}

Légende de la carte ou du tableau
En bleu	Tracé absorbé par la RN489 puis par l'A89.
En vert	Tracé actuel de la D73E (69M).
En bleu ciel	Tracé actuel de la D73 (69M).
En violet	Tronc commun avec la D42.
En blanc	Tracé déclassé dans la voirie communautaire du Grand-Lyon.
En gris	Tracé détruit à cause du réaménagement de la RN6.
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.

• Métropole de Lyon (69M) - VM
  • D30 VM La Tour-de-Salvagny
• Métropole de Lyon (69M) - A89
  •  A89
  •   40  D77 D307
  •     Le Barriot (ancien demi-échangeur)
• Métropole de Lyon (69M) - VM
  • Dardilly C77
  •   Échangeur entre D306 et M6   33 
  • Limonest D42 D65 D92
• Métropole de Lyon (69M) - D73
  • Saint-Didier-au-Mont-d'Or D73^E
  •  Col de la Croix de Presles (527 m) D92
  • Poleymieux-au-Mont-d'Or C90
  • Curis-au-Mont-d'Or
  • Albigny-sur-Saône D16 D51