PrésentationModifier

• La route nationale 551, ou RN551, est une ancienne route nationale française qui reliait Le Rocher-d'Ongles (RN550) à Espinasses (RN542, puis RN100^B).

HistoriqueModifier

• A sa création, en 1933, elle est définie comme la route d'Embrun à Forcalquier.
• Le trajet d'Espinasses à Embrun se faisait via la N542 avant la construction du barrage de Serre-Ponçon. Du Rocher-d'Ongles à Forcalquier on empruntait la N550.
• On notera que la RN551 possédait une courte antenne entre Gigors et Turriers, la RN551^A.
• Suite à la réforme de 1972, la RN551 a été déclassée en D951.

Autour de la routeModifier

• Sisteron.

Tracé historiqueModifier

<googlemap lat="44.30223" lon="6.017761" zoom="9" width="400" overview="yes">

1. F30a2b

44.464906, 6.200066, Espinasses 44.457922, 6.197662 44.454124, 6.197834 44.452654, 6.200581 44.441502, 6.203671 44.437089, 6.203499 44.435373, 6.201611 44.434515, 6.203671 44.433167, 6.201267 44.431941, 6.201267 44.42667, 6.195774 44.424708, 6.198006 44.421521, 6.192341 44.422624, 6.190453 44.422747, 6.187878 44.423728, 6.185474 44.422502, 6.185646 44.422502, 6.184273 44.421276, 6.182728 44.421889, 6.177235 44.42005, 6.168652 44.418701, 6.164017 44.420295, 6.149769 44.421766, 6.148396 44.420908, 6.147194 44.421521, 6.145134 44.42103, 6.142387 44.422379, 6.140671 44.421153, 6.139126 44.42103, 6.135521 44.419682, 6.133461 44.419314, 6.134319 44.417965, 6.131058 44.417352, 6.131573 44.417475, 6.130199 44.4149, 6.125221 44.414655, 6.12196 44.412938, 6.115437 44.41024, 6.111832 44.409382, 6.10857 44.407543, 6.107197 44.407788, 6.105309 44.403373, 6.09724 44.401656, 6.096039 44.40043, 6.093636 44.398222, 6.092777 44.397118, 6.087971 44.391476, 6.082821 44.389636, 6.082478 44.388777, 6.081104 44.384606, 6.077671 44.38203, 6.076298 44.379821, 6.072006 44.375527, 6.069946 44.375404, 6.067886 44.37295, 6.065311 44.372337, 6.063251 44.367796, 6.058445 44.362151, 6.050549 44.360801, 6.050034 44.355033, 6.044197 44.353928, 6.041794 44.348527, 6.037331 44.342512, 6.027374 44.33846, 6.028576 44.33404, 6.027546 44.331339, 6.029434 44.32569, 6.029434 44.322866, 6.030636 44.319304, 6.030121 44.315005, 6.035099 44.306775, 6.035099 44.305301, 6.033897 44.29793, 6.032352 44.295473, 6.028061 44.291295, 6.026859 44.289821, 6.024799 44.288223, 6.024971 44.281956, 6.017418 44.282079, 6.015186 44.278023, 6.010551 44.275319, 6.010208 44.273353, 6.012096 44.272247, 6.01141 44.271878, 6.005573 44.269051, 6.004372 44.267576, 5.994244 44.267821, 5.990982 44.264502, 5.980854 44.262412, 5.977249 44.259339, 5.967121 44.257618, 5.965233 44.256511, 5.966606 44.25479, 5.965576 44.252946, 5.960598 44.25147, 5.959396 44.24815, 5.952358 44.243846, 5.948238 44.241756, 5.94841 44.235237, 5.945663 44.23204, 5.944805 44.230441, 5.94326 44.228104, 5.942574 44.226135, 5.939484 44.222691, 5.938454 44.221215, 5.936909 44.219984, 5.938625 44.216786, 5.940342 44.211987, 5.94017 44.206942, 5.944462 44.202512, 5.946178 44.199682, 5.946178 44.199436, 5.944977

1. F412F1

44.199436, 5.944977, Sisteron 44.195744, 5.942402 44.184543, 5.948582 44.171739, 5.948238 44.168661, 5.949097 44.155361, 5.9515 44.150681, 5.958195

1. F30a2b

44.150681, 5.958195, Peipin 44.147602, 5.95871 44.145261, 5.960083 44.142182, 5.958881 44.14058, 5.960255 44.138486, 5.958881 44.137993, 5.956135 44.129246, 5.953732 44.122715, 5.949955 44.116061, 5.9515 44.110268, 5.949783 44.107803, 5.948067 44.102502, 5.947208 44.09412, 5.949783 44.091037, 5.948067 44.088695, 5.948238 44.087585, 5.942059 44.086722, 5.939312 44.083763, 5.940342 44.083269, 5.937939 44.084133, 5.936565 44.08179, 5.935879 44.08179, 5.934162 44.080803, 5.933475 44.083393, 5.929527 44.08216, 5.929356 44.080803, 5.928154 44.07957, 5.925236 44.07735, 5.924549 44.075624, 5.921974 44.077227, 5.919743 44.075994, 5.918713 44.076857, 5.916481 44.0755, 5.906181 44.072664, 5.901718 44.06847, 5.898972 44.066004, 5.898113 44.065263, 5.886269 44.064277, 5.887814 44.063167, 5.886955 44.062796, 5.884209 44.064647, 5.879745 44.06625, 5.87923 44.066497, 5.876827 44.065387, 5.875454 44.066374, 5.867386 44.06551, 5.860519 44.06588, 5.858116 44.06366, 5.853138 44.06366, 5.850391 44.062796, 5.844383 44.06329, 5.839062 44.06181, 5.831165 44.059959, 5.822411 44.057122, 5.814686 44.055642, 5.813313 44.055271, 5.811596 44.052434, 5.808163 44.047746, 5.804729 44.045525, 5.790997 44.045401, 5.780354 44.045154, 5.776234 44.044044, 5.773144 44.039232, 5.767479 44.034542, 5.761986 44.029359, 5.756836 44.030716, 5.754948 44.029976, 5.753403 44.021336, 5.748425 44.01899, 5.74379 44.021459, 5.738811 44.020965, 5.736065 44.019114, 5.731773 44.018743, 5.728683 44.019607, 5.724564 44.020965, 5.721645 44.020965, 5.713062, Le Rocher-d'Ongles </googlemap>

En rouge, le tracé de la RN551. En mauve, l'ancien tronc commun avec la RN85.

• Alpes-de-Haute-Provence (04) - D951
  • D950 Le Rocher-d'Ongles
  • Saint-Sébastien
  • Saint-Joseph
  • Saint-Étienne-les-Orgues
  • Cruis
  • Mallefougasse-Augès
  • Châteauneuf-Val-Saint-Donat
  • Les Paulons
  • Peipin
  •  Court tronc commun avec la D4085.
  • Sisteron - D946 D948
  • Plan-de-la-Beaume
  • Nibles
  • Beauséjour
  • La Motte-du-Caire
  • Le Caire
  • Faucon-du-Caire
  •  Col de Sarraut (980 m)
  • Gigors - D951^A
• Hautes-Alpes (05) - D951
  • Bréziers
  • Espinasses D900^B

v • d • e Départements et régions traversés Régions  Provence-Alpes-Côte d'Azur (PACA) Départements  Alpes-de-Haute-Provence  Hautes-Alpes