Route nationale française 129

Route nationale 129
Portique d'accès à la courte RN129 à Avignon.© G.E.
Localisation
Pays	France
Régions	Occitanie, Provence-Alpes-Côte d'Azur
Exploitation
Gestionnaire	DIR Méditerranée
Caractéristiques de 1824 à 1933
Itinéraire	Auch - Ancizan - Port d'Ourdissetou
Longueur	130 km
Caractéristiques de 1933 à 1957
Itinéraire	Auch - Masseube - Arreau - Fabian
Longueur	107 km
Caractéristiques de 1957 à 1973
Itinéraire	Auch - Masseube - Arreau - Barrage du Lac de Cap de Long
Longueur	121 km
Caractéristiques actuelles
Itinéraire	Liaison A7   24  - LEO à l'Est d'Avignon
Longueur	1 km

Présentation

• La route nationale 129, ou RN129, est une route nationale française, située à l'Est d'Avignon, qui assure actuellement la liaison entre l'A7 -   24  Avignon-Sud et la RN7. En tant que maillon de la Liaison Est-Ouest au Sud d'Avignon, cette route a été conservée par l’État en 2006.

Historique

Généralités

• Jusqu'en 1973, la RN129 était une route nationale située dans le Sud-Ouest de la France qui reliait Auch (RN124) au Barrage de Cap-de-Long dans les Pyrenées. Suite à la réforme de 1972, elle a été déclassée en D929 dans les départements du Gers (32) et des Hautes-Pyrénées (65), quelques années à peine avant l'inauguration du Tunnel d'Aragnouet-Bielsa.
• A sa création, en 1824, elle est décrite comme étant la route d'Auch en Espagne par Ancizan. Elle s'embranche, à la sortie de la ville d'Auch, à la route n° 21, de Paris à Barrèges. La carte des routes royales de la France de 1824 nous montre effectivement la Route n° 129 entrer en Espagne par ce qui semble être le chemin devenu depuis la D19 dans la vallée du Rioumajou via Fredançon et l'hospice de Rioumajou puis passer en Espagne via le Port d'Ourdissetou (2.403 m) par ce qui est devenu un sentier de marche et rejoindre la vallée du Rio Cinca aux alentours de Parzan. Elle succède alors à la Route impériale 149.
• En pratique, les travaux de construction entre Guchan et Tramezaïgues sont achevés en 1870 et la route s'arrêtera à cet endroit faute d'un arbitrage sur le tracé et d'une réelle volonté de construire le tronçon frontalier.
• En 1933, la route est prolongée de Tramezaïgues à Fabian par absorption d'un chemin existant (chemin vicinal d'intérêt commun n° 19, ou Ic19 (65)) et elle devient la route d'Auch à Arreau et à Fabian.
• On lui adjoindra enfin un tronçon jusqu'au barrage de Cap-de-Long (achevé en 1953) par le classement, le 17/12/1957, de la route construite par EDF dans la haute vallée d'Aure. Elle est alors définie comme la route d'Auch à Arreau, à Fabian et au barrage du Cap-de-Long.
• Grâce à la volonté des collectivités locales, la jonction avec l'Espagne s'effectuera en 1976 grâce au Tunnel d'Aragnouet-Bielsa uniquement accessible par des routes départementales (D118 et D173).
• Après déclassement total en 1973, un ajout tardif à la nomenclature de 1978, daté du 28.11.1978, réattribue le numéro à la route de Bompas, A7 (Échangeur d'Avignon-Sud) à Bompas, N7.

Construction

• Section Pont de Ribanès à Monlong - La Demi-Lune de Pinas : 1838 (réparations).
• Côte de La Barthe-de-Neste : 1870.
• Section Hèches - Sarrancolin : 1845.
• Section Sarrancolin - Escalère : 1848.
• Section Escalère - Arreau : 1861.
• Traversée d'Arreau : 1887.
• Section Arreau - Guchen : 1861.
• Section Guchan - Tramezaïgues : 1870, rectification à la sortie de Saint-Lary-Soulan en 1893.

Aménagements

• Liaison La Barthe-de-Neste - Hèches : voir l'article sur la D929^A.
• Déviation de Cadéac : début des années 2000 côté Nord (réaménagement de la D19) et 27 juin 2015 côté Sud grâce à la construction d'un pont sur la Neste d'Aure.
• Déviation d'Ancizan et Guchen : projet abandonné.
• Déviation Nord de Saint-Lary-Soulan : 18 août 2010, en réalité un barreau Nord reliant la D19 et la D929, permettant d'établir un itinéraire de fortune évitant partiellement le centre-ville de Saint-Lary-Soulan.

Tracés historiques

Liaison A7   24  - LEO à l'Est d'Avignon (actuel)

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Légende de la carte
En rouge	Tracé actuel.
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La RN129 actuelle au péage d'Avignon-Sud. © Eomer - LGV 2030

• Vaucluse (84) - N129 LEO
  •  A7-   24  Vers Lyon, Marseille et Nice
  •   Gare de péage d'Avignon-Sud 
  •  N129
  •     N7 LEO Vers Avignon D900 Vers Cavaillon
  •  N129
  • D907 Vers Salon-de-Provence

Auch - Barrage de Cap-de-Long (avant 1973)

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class=\"mw-parser-output\"\u003E\u003Cp\u003EAuch\n\u003C/p\u003E\u003C/div\u003E","title":"Auch\n","link":"","lat":43.62079200000000156478563440032303333282470703125,"lon":0.5779840000000000532764943272923119366168975830078125,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBarrage de Cap-de-Long\n\u003C/p\u003E\u003C/div\u003E","title":"Barrage de Cap-de-Long\n","link":"","lat":42.8189670000000006666596163995563983917236328125,"lon":0.138680999999999998717470361953019164502620697021484375,"icon":""}]}

Légende de la carte
En rouge	Tracé avant 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.

La D929 au niveau d'Hèches
© radars-auto.com / Seb64

• Gers (32) - D929
  • N21 Auch Cathédrale et Centre Ancien
  • Pavie Pont XIII^e, Château, Église Gothique, Tour du Guet
  • Auterive
  • Boucagnères
  • Orbessan
  • Sansan Entéous
  • Ornézan
  • Seissan
  • Labarthe
  • Masseube Église XIII-XIX^e D27 D127
  • Panassac D128
  • Chélan
• Hautes-Pyrénées (65) - D929
  • Castelnau-Magnoac Collégiale D632
  • Claret
  • Gaussan
  • Monlong
  •  
  •  
  • Lannemezan La Demi-Lune D817
  • D10
  • A64 E80   16 
  • La Barthe-de-Neste D938
  •  
  • Izaux
  • Pénart
  • D929^A
  • Hèches Canal de la Neste

    

    La D929 après Hèches © RNDCRF

  • Rebouc
  • Sarrancolin
  • Arreau Châteaux, Églises D618 D918 D919
  • Cadéac Tour
  • Ancizan Maisons XVI^e
  • Guchen
  • Guchan
  • Bourisp Église XV^e (Fresques XVI^e)
  • Saint-Lary-Soulan La Neste d'Aure Thermes, Maison du Parc National des Pyrénées
  • Tramezaïgues Le Rioumajou Château
  • Méyabat La Neste d'Aure
  • Fabian D118
  • Boucagnère
  • La Neste de Couplan
  •  Sapinière de Couplan
  • Cascade de Couplan
  • Barrage de Cap-de-Long Lac de Cap-de-Long

Liens externes

• Fiche Structurae sur le barrage de Cap-de-Long