Route nationale française 789

Route nationale 789
La D789 à la sortie du Conquet© Google Maps
Localisation
Pays	France
Région	Bretagne
Caractéristiques de 1933 à 1972
Itinéraire	Brest - Le Conquet
Longueur	22 km

Présentation

• La route nationale 789, ou RN789, est une ancienne route nationale française qui reliait Brest (N12) au Conquet.

Historique

Généralités

• A sa création, en 1933, elle est définie comme la route de Brest au Conquet.
• Elle est issue du chemin de grande communication n° 12 du Finistère, ou Gc12 (29).
• Son origine se situait à l'extrémité de la RN12, à la porte du Conquet dans le quartier de Recouvrance à Brest. Lors de la Reconstruction de Brest après la seconde guerre mondiale, les anciens remparts ont été démolis et la limite entre les deux nationales a été décalée de quelques dizaines de mètres vers l'Ouest, au niveau de la nouvelle place de Prat Lédan.
• Elle est déclassée en 1972 en D789 dans le département du Finistère (29).
• Depuis le 1^er janvier 2017, une partie de la section située sur le territoire de Brest Métropole a été transférée à cette collectivité. Le reste de l'itinéraire dans et hors métropole reste géré par le Conseil Départemental du Finistère.

Aménagements

• Elargissement à 4 voies à l'Ouest de Brest : 1965.
• Déviation de La Trinité : 1987.
• Échangeur de Locmaria-Plouzané : 1993.
• Rectification de Porsmilin : 1998.

Tracé historique

Chargement de la carte...

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class=\"mw-parser-output\"\u003E\u003Cp\u003EBrest, N12\n\u003C/p\u003E\u003C/div\u003E","title":"Brest, N12\n","link":"","lat":48.383965,"lon":-4.504516,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ELe Conquet\n\u003C/p\u003E\u003C/div\u003E","title":"Le Conquet\n","link":"","lat":48.360898,"lon":-4.770367,"icon":""}]}

Légende de la carte ou du tableau
En rouge	Tracé déclassé en 1972.
En jaune	Anciens tracés à Locmaria-Plouzané et Plougonvélin déclassés par décrets de 1936, 1937 et 1938.
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.

• Finistère (29) / Brest Métropole - M789
  • Brest
    • D165 Port de Commerce M5 M26 M105 M712 M788
    •  Pont de Recouvrance La Penfeld
    • Recouvrance
    • Saint-Pierre-Quilbignon   M205
    • Kerarbélec  
• Finistère (29) / Brest Métropole - D789
  • Plouzané (Plouzane)
    • Kerarmaze
    • La Trinité Fontaine
    • Le Petit Minou  
    • La Croix Marie
• Finistère (29) - D789
  • Locmaria-Plouzané
    •  ZI de Pen Ar-Ménez
    • Kerveguen
    • Kerilio
    • Kerfily
  • Plougonvelin
    • Goasmeur
    • Zone d'Activités de Toul an Ibil
    • Le Lannou D85
    • Saint-Aouen
  • Étang de Kerjean D67
  • Le Conquet (Konk-Leon) Église Sainte-Croix Pointe Sainte-Barbe  '' D85