Sommaire
Présentation
- La route nationale 531, ou RN531, est une ancienne route nationale française qui reliait Bourg-de-Péage à Grenoble, via le Massif du Vercors.
Historique
Généralités
- A sa création, en 1933, elle est définie comme la route de Valence-sur-Rhône à Grenoble par Villars-de-Lans.
- Le trajet de Valence à Bourg-de-Péage se faisait alors via la N92.
- Suite à la réforme de 1972, les tronçons de Bourg-de-Péage à Saint-Just-de-Claix et de Sassenage à Fontaine ont été renumérotés en RN532 et le reste de l'itinéraire a été déclassé en D531.
- Il est à noter que la boucle urbaine Fontaine - Grenoble - Fontaine numérotée D531 sur le terrain et longue de 8,3 km n'a jamais fait partie du réseau routier national. Elle emprunte le pont Esclangon mis en service en décembre 1985.
- Axe majeur du Vercors, la D531 a fait l'objet de nombreux travaux visant à assurer sa pérennité et une certaine capacité à écouler un trafic saisonnier important.
- La portion située sur le territoire de Grenoble-Alpes Métropole est exploitée par cette dernière depuis le 1er janvier 2017.
Aménagements
- Tunnel d'Arbois, sur la commune de Chorange : 2 août 2000.
- Elargissement entre Villard-de-Lans et Sassenage : 1967.
- Déviation de Sassenage : 1967.
- Pont sur le Drac, dans la continuité des grands boulevards de Grenoble : 10 août 1956.
- Suppression du passage à niveau de L'Estacade à Grenoble : 15 octobre 1964.
Autour de la route
- Grenoble.
- Massif du Vercors.
- Gorges de la Bourne.
Tracé historique
Chargement de la carte...
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class=\"mw-parser-output\"\u003E\u003Cp\u003ESaint-Just-de-Claix\n\u003C/p\u003E\u003C/div\u003E","title":"Saint-Just-de-Claix\n","link":"","lat":45.06354499999999774217940284870564937591552734375,"lon":5.26597500000000007247535904753021895885467529296875,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBourg-de-P\u00e9age (jusqu'en 1973)\n\u003C/p\u003E\u003C/div\u003E","title":"Bourg-de-P\u00e9age (jusqu'en 1973)\n","link":"","lat":45.040829999999999699866748414933681488037109375,"lon":5.04854200000000030712499210494570434093475341796875,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBourg-de-P\u00e9age\n\u003C/p\u003E\u003C/div\u003E","title":"Bourg-de-P\u00e9age\n","link":"","lat":45.04041000000000138925315695814788341522216796875,"lon":5.05619700000000005246647560852579772472381591796875,"icon":""}]}
| Légende de la carte | |
| En rouge | Tracé cédé à la RN532 en 1978 (déclassé en 2006). |
| En orange | Ancien tracé à Sassenage déclassé en 1971 et tracé déclassé localement après rectification. |
| En jaune | Tracé déclassé en 1973. |
| En vert | Boucle Fontaine - Grenoble - Fontaine |
| En violet | Tronc commun avec la RN518 à Pont-en-Royans. |
| 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. | |
De Bourg-de-Péage à Grenoble (de 1933 à 1973)
Panneau sur la D531 à Saint-Just-de-Claix. © G.E.
- Isère (38) - D1532
- Saint Just-de-Claix
- Quatre Têtes
Site Archéologique - Clairivaux
- Espace Royans
- Quatre Têtes
- Saint Just-de-Claix
- Isère (38) - D531
- Parc naturel régional du Vercors
Village de Pont-en-Royans, traversé par la RD531 (anciennement RN531). © Mickadu26
- Auberives-en-Royans
- Auberives Village
- Le Mas
- Pont-en-Royans Bourg Médiéval, Musée de l'Eau
- Choranche
- Métrière
- Pré Martin
- Les Pierrones
- Les Chartreux
- Ruisseau de Jallifier
- Choranche
- Gorges de la Bourne
- Rencurel
- La Balme de Rencurel
- Le Moulin
- Basse Valette
- Pont de la Goule Noire D103
Panneaux Michelin sur le Pont de la Goule Noire. © Détail d'une Carte Postale Ancienne.
- Grotte de la Goule Verte
- Grotte de la Goule Blanche
- Villard-de-Lans
- Les Jarrands Le Meaudret D106
- Charpichon
- Villard-de-Lans Centre Nombreux Monuments
- Font Noire
- Les Geymonds
- Pont des Âniers Le Plénouse
- Les Jarrands
- Lans-en-Vercors Église et Prieuré
- La Côte
- La Gardette
- Le Truc (déviée)
- Les Eymards (déviée)
- Jaume D106
- Verduret Musée de la Magie des Automates
- L'Olette
- Gorges d'Engins
- Engins Les Jaux
- Gorges du Furon
- Lacets
- Isère (38) / Grenoble-Alpes Métropole - D531
- Sassenage Églises, Châteaux Cuves de Sassenage
- Les Grandes Côtes Lacets
- Hameau du Château
- D1532
- Les Grandes Côtes
- Sassenage
- Isère (38) / Grenoble-Alpes Métropole - D1532
Boucle Fontaine - Grenoble - Fontaine (non classée)
- Isère (38) / Grenoble-Alpes Métropole - D531
| ||||||||
