Route nationale française 771

Route nationale 771
Poteau Michelin de la RN771 à l'entrée de La Baule© Bryce1987
Localisation
Pays	France
Région	Pays de la Loire
Caractéristiques de 1933 à 1973
Itinéraire	Châteaubriant - Saint-Nazaire - Le Croisic
Longueur	105 km

Présentation

• La route nationale 771, ou RN771, est une ancienne route nationale française qui reliait Châteaubriant au Croisic, via Saint-Nazaire.
• A sa création, en 1933, elle est définie comme la route de Châteaubriant au Croisic.
• Entièrement située dans le département de la Loire-Inférieure, elle est issue :
  • du chemin vicinal de grande communication n° 12 bis, ou Gc12^Bis (44), pour la section comprise entre Châteaubriant et La Croix-Laurent, commune de Saint-Vincent-des-Landes ;
  • du chemin vicinal de grande communication n° 11 bis, ou Gc11^Bis (44), pour la section comprise entre La Croix-Laurent et Savenay ;
  • d'un premier tronçon du chemin vicinal de grande communication n° 8 bis, ou Gc8^Bis (44), pour la section comprise entre Savenay et Escoublac ;
  • du chemin vicinal de grande communication n° 45, ou Gc45 (44), pour la section comprise entre Escoublac et Batz ;
  • d'un second tronçon du chemin vicinal de grande communication n° 8 bis, ou Gc8^Bis (44), pour la section comprise entre Batz et Pornic.
• En 1955, est mise en service la déviation de la RN771 entre Montoir et l'entrée Nord de Saint-Nazaire, plus précisément au niveau de la nouvelle gare de la Matte récemment construite. Pour se raccorder à l'ancien tracé à Saint-Nazaire, cette mise en service aurait dû normalement s'accompagner du classement, dans son prolongement direct, de la grande artère percée dans l'axe de la rue Jean d'Ust dans le cadre de la reconstruction de la ville, entre la gare et le nouvel hôtel de ville (cette artère est devenue l'actuelle avenue de la République) et, de façon corollaire, du déclassement de l'ancien tracé. Suite peut-être à un désaccord entre l'État et les collectivités locales au sujet des conditions de ce déclassement, l'arrêté ministériel n'a jamais été publié. De ce fait, la RN751 est restée "provisoirement" discontinue et l'État a conservé "provisoirement" l'ancien tracé parmi les routes nationales sous l'appellation RN771^E.
• Celui-ci a finalement été déclassé en 1973 et l'avenue de la République à Saint-Nazaire a été classée dans la nouvelle RN471 le 8 décembre 1979, avant d'être déclassée le 30 janvier 1987.
• En 1978 la RN771 a été absorbée en quasi-totalité par la nouvelle RN171. Le tracé entre Saint-Nazaire et Le Croisic a été dévié en décembre 1979, avant d'être déclassé en 2006.

Tracé historique

Chargement de la carte...

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Croisic\n","link":"","strokeColor":"#F30A2B","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.274284,"lon":-2.213638},{"lat":47.274984,"lon":-2.219168},{"lat":47.275441,"lon":-2.220909},{"lat":47.276462,"lon":-2.223103},{"lat":47.276622,"lon":-2.223815},{"lat":47.276731,"lon":-2.224618},{"lat":47.276933,"lon":-2.226794},{"lat":47.277029,"lon":-2.228296},{"lat":47.277018,"lon":-2.228848},{"lat":47.276882,"lon":-2.229905},{"lat":47.276806,"lon":-2.231649},{"lat":47.276882,"lon":-2.232485},{"lat":47.277399,"lon":-2.23451},{"lat":47.277424,"lon":-2.235535},{"lat":47.277535,"lon":-2.236603},{"lat":47.277781,"lon":-2.237517},{"lat":47.278023,"lon":-2.238998},{"lat":47.27821,"lon":-2.239497},{"lat":47.278791,"lon":-2.240612},{"lat":47.278896,"lon":-2.24098},{"lat":47.278947,"lon":-2.241578},{"lat":47.278833,"lon":-2.246379},{"lat":47.278431,"lon":-2.249576},{"lat":47.278462,"lon":-2.249934},{"lat":47.278591,"lon":-2.250263},{"lat":47.278904,"lon":-2.250588},{"lat":47.279126,"lon":-2.250631},{"lat":47.279642,"lon":-2.250515},{"lat":47.279892,"lon":-2.250588},{"lat":47.280867,"lon":-2.2514},{"lat":47.281024,"lon":-2.251669},{"lat":47.281091,"lon":-2.252001},{"lat":47.281137,"lon":-2.257614},{"lat":47.281069,"lon":-2.257939},{"lat":47.280938,"lon":-2.258199},{"lat":47.280198,"lon":-2.25921},{"lat":47.280016,"lon":-2.259749},{"lat":47.279564,"lon":-2.262228},{"lat":47.279558,"lon":-2.262629},{"lat":47.279632,"lon":-2.263126},{"lat":47.280076,"lon":-2.264736},{"lat":47.280208,"lon":-2.265642},{"lat":47.28017,"lon":-2.266208},{"lat":47.279992,"lon":-2.266938},{"lat":47.279883,"lon":-2.267737},{"lat":47.279557,"lon":-2.268933},{"lat":47.279413,"lon":-2.270028},{"lat":47.279388,"lon":-2.270666},{"lat":47.279411,"lon":-2.274807},{"lat":47.279466,"lon":-2.275298},{"lat":47.280007,"lon":-2.276945},{"lat":47.280263,"lon":-2.278147},{"lat":47.280472,"lon":-2.279802},{"lat":47.280531,"lon":-2.280955},{"lat":47.28046,"lon":-2.281607},{"lat":47.280236,"lon":-2.282816},{"lat":47.280004,"lon":-2.283707},{"lat":47.279015,"lon":-2.286162},{"lat":47.278933,"lon":-2.286492},{"lat":47.278324,"lon":-2.291019},{"lat":47.278294,"lon":-2.294294},{"lat":47.278409,"lon":-2.295389},{"lat":47.278713,"lon":-2.297025},{"lat":47.278846,"lon":-2.298183},{"lat":47.27892,"lon":-2.300005},{"lat":47.279068,"lon":-2.300927},{"lat":47.279691,"lon":-2.302389},{"lat":47.280226,"lon":-2.302982},{"lat":47.280411,"lon":-2.303264},{"lat":47.280757,"lon":-2.304039},{"lat":47.282703,"lon":-2.310984},{"lat":47.283248,"lon":-2.312555},{"lat":47.283329,"lon":-2.313175},{"lat":47.283362,"lon":-2.314481},{"lat":47.283238,"lon":-2.315643},{"lat":47.283217,"lon":-2.316297},{"lat":47.283326,"lon":-2.31723},{"lat":47.283304,"lon":-2.317735},{"lat":47.28318,"lon":-2.318679},{"lat":47.283049,"lon":-2.320433},{"lat":47.283084,"lon":-2.321023},{"lat":47.283297,"lon":-2.322402},{"lat":47.283986,"lon":-2.325508},{"lat":47.284891,"lon":-2.328667},{"lat":47.285362,"lon":-2.330773},{"lat":47.285678,"lon":-2.331934},{"lat":47.286221,"lon":-2.333571},{"lat":47.286506,"lon":-2.334204},{"lat":47.287241,"lon":-2.335169},{"lat":47.28746,"lon":-2.335716},{"lat":47.287578,"lon":-2.336304},{"lat":47.287669,"lon":-2.337686},{"lat":47.287771,"lon":-2.338177},{"lat":47.288375,"lon":-2.339979},{"lat":47.28858,"lon":-2.340926},{"lat":47.288755,"lon":-2.342415},{"lat":47.291046,"lon":-2.354593},{"lat":47.291389,"lon":-2.355821},{"lat":47.291758,"lon":-2.356475},{"lat":47.292159,"lon":-2.356918},{"lat":47.294001,"lon":-2.358549},{"lat":47.294406,"lon":-2.359096},{"lat":47.294928,"lon":-2.360676},{"lat":47.295291,"lon":-2.361548},{"lat":47.295249,"lon":-2.361768},{"lat":47.292763,"lon":-2.363685},{"lat":47.292327,"lon":-2.363848},{"lat":47.291752,"lon":-2.363894},{"lat":47.291461,"lon":-2.364025},{"lat":47.289833,"lon":-2.365428},{"lat":47.28956,"lon":-2.365758},{"lat":47.288726,"lon":-2.367695},{"lat":47.288514,"lon":-2.36858},{"lat":47.288488,"lon":-2.369038},{"lat":47.288776,"lon":-2.370267},{"lat":47.288947,"lon":-2.370605},{"lat":47.289406,"lon":-2.371124},{"lat":47.289545,"lon":-2.371338},{"lat":47.289644,"lon":-2.371625},{"lat":47.289693,"lon":-2.371953},{"lat":47.289591,"lon":-2.373326},{"lat":47.289438,"lon":-2.374015},{"lat":47.289083,"lon":-2.374912},{"lat":47.28816,"lon":-2.37687},{"lat":47.287709,"lon":-2.378082},{"lat":47.2875,"lon":-2.379182},{"lat":47.287465,"lon":-2.380346},{"lat":47.287632,"lon":-2.381746},{"lat":47.287776,"lon":-2.382445},{"lat":47.288316,"lon":-2.385317},{"lat":47.288316,"lon":-2.385612},{"lat":47.280477,"lon":-2.418641},{"lat":47.279103,"lon":-2.423085},{"lat":47.278274,"lon":-2.427339},{"lat":47.278319,"lon":-2.428306},{"lat":47.278729,"lon":-2.433028},{"lat":47.278719,"lon":-2.433399},{"lat":47.278481,"lon":-2.435625},{"lat":47.278398,"lon":-2.436011},{"lat":47.27719,"lon":-2.440432},{"lat":47.277281,"lon":-2.443978},{"lat":47.277443,"lon":-2.445257},{"lat":47.277165,"lon":-2.447481},{"lat":47.277172,"lon":-2.447789},{"lat":47.277467,"lon":-2.449931}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class=\"mw-parser-output\"\u003E\u003Cp\u003ECh\u00e2teaubriant\n\u003C/p\u003E\u003C/div\u003E","title":"Ch\u00e2teaubriant\n","link":"","lat":47.706587,"lon":-1.382966,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ELe Croisic\n\u003C/p\u003E\u003C/div\u003E","title":"Le Croisic\n","link":"","lat":47.292785,"lon":-2.509,"icon":""}]}

Légende de la carte ou du tableau
En rouge	Tracé cédé à la RN171 en 1978.
En orange	Tracé cédé à la RN771E en 1955 (déclassé en 1973).
En jaune	Tracé déclassé en 1973.
En violet	Tronc commun avec la RN137 à Nozay.
En blanc	Voie communale de Saint-Nazaire assurant la continuité de la RN771 de 1955 à 1978 (classée en 1979 puis déclassée en 1987).
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.

• Loire-Atlantique (44) - D771
  • Châteaubriant Château, Vieille Ville, Églises
    • D163La Ville en Bois (vers D178 D771 D772)
    •  
    •  
    •  
  • Saint-Aubin-des-Châteaux
    • Étang de Courbetière
    • Le Val Marie
    • Le Tertre Rouge
    • La Bergerie  
  • Saint-Vincent-des-Landes
    • La Croix Laurent   D775 (vers D69)
    • La Gare D69
    • La Magdeleine Chapelle XVII^e
    • La Griolais
    • La Cône
    • Le Jarrier
    • Le Chênais-du-Jarrier
  • Treffieux
    • Les Fontenelles
    •  
    • Treffieux Village
    • Le Don
    • La Gare  
    • Les Landelles
    • Le Mortier
    • Le Point-du-Jour
  • Nozay
    • Le Pont-Frémont Ruisseau de Sauzignac
    • Ruisseau de Cétrais
    • La Comète
    • L'Espérance
    • L'Avenir
    • Grand Jouan
    • La Grange
    • La Petite Haie  N137 D2 D39 D121 D124
    •  Tronc commun avec la D121, via Nozay.
    • N137 Créviac
• Loire-Atlantique (44) - N171
  • Nozay Sainte-Marie
  • La Grigonnais
    • La Platrouais
    • Bernusseau
    • La Grigonnais Village Ruisseau du Pirudel
    • Le Calvaire
    • Pirudel  
    • La Bretonnière  
    • L'Hôtel-Cossard Ruisseau du Pirudel
    • Le Noë-de-la-Barre
    • Croix du Mortier
  • Blain Chapelle
    • La Jaunerais
    • Ruisseau du Perche
    • La Gendronnais
    • ZA des Bluchets  
    • Blain Centre D15 D42 D33 D164
    • L'Isac
    • Château de la Groulaie  
    • Le Pont Maffré Ruisseau de la Madeleine
    • La Carrée   D33
    • L'Hôtel de France   D81
  • Ruisseau du Pont-Serin
  • Ruisseau de la Farinelais
  •  
  • Bouvron Châteaux, Chapelles
    • Fresnée
    • La Vigne
    • Bouvron Centre Monument de la Reddition 1945 D16
    • Bel-Air
    •  
    • La Haie
    • La Croix-Blanche  
    • La Croix-Verte
    • Le Pont Bouvronnais Ruisseau du Pont aux Chèvres
  • Savenay Église Saint-Martin, Moulins
    • La Chevignerie    N165 D3 D17 D217 VC
• Loire-Atlantique (44) - D771
  • Savenay
    • Savenay Centre
  • La Chapelle-Launay
    • La Touche-Basse
    • La Foutais
    • Beau-Soleil
    • Ancienne Abbaye de Blanche Couronne
  • Prinquiau
    • Villeneuve
    • La Haute Lande D100
    • La Noë
    • La Hunière
    • Le Loyer Canal du Loyer
    • Sem
• Loire-Atlantique (44) - VC
  • Marais de Sem pas de raccord sur la N171
  • Donges
    • Sem
    • Le Bochet
    • La Boue
    • La Censie
    • Bily
    • Les Herpinières
    • Le Rocher D4
    • Les Six Croix
    • La Vieille Muraille pas de raccord sur la N171
• Loire-Atlantique (44) - N171
  • • Donges Le Pont-de-Nyon VC
  • Montoir-de-Bretagne
    • La Baronnais
    • L'Enferneuf
    •  Z.I. des Noës
    •  Z.I. de Cadréan D50 D971
    • Les Gartiens
  • Trignac Forges XIX^e Le Brivet
• Loire-Atlantique (44) - VC
  • Trignac
    • Certé
    •  
    •  ZI de Savine  
    •  
  • Saint-Nazaire Nombreux Monuments
    • Pont de la Motte  
    • Saint-Nazaire Centre D47 D92 D100 D213 D971
• Loire-Atlantique (44) - D971
  • Saint-Nazaire
    • D492 L'Immaculée Étang du Bois Joalland D47
    • La Croix Verte
    • La Chaponnerie
    • Trégouet
    • Les Virées Émery
  • Pornichet
    • Les Quatre Vents
    • Cleux
    • D392
  • La Baule-Escoublac
    • Les Grands Parcs
    • Les Pavillons
    •  Aérodrome de La Baule-Escoublac Musée Aéronautique
    • Mésoré  
    • Escoublac Cimetière Militaire Britannique
    •  
    • Kercoco Château
    • La Baule Front de Mer, Gare D92 D192
    • Parc des Expositions
    •  
  • Grand Étier du Pouliguen
• Loire-Atlantique (44) - D245
  • Le Pouliguen   D45
  • Batz-sur-Mer
    • Bondre de Kervarou
    • Bondre du Sigoff
    • Kerban
    • Roffiat
    • Kermoisan
    • Ancien Moulin de Kermoisan   D774
    • Bellevue
    • Ancien Moulin de la Masse  
    • Batz Village Nombreux Monuments
    • Beaulieu D45
  • Le Croisic Nombreux Monuments D45