Réalisée progressivement à partir de 1985, elle n'a été achevée qu'en décembre 2008 avec l'ouverture du Raccordement Est. Elle a été créée dans le but de désengorger les N1 et N2 dans la traversée de Saint-Denis.
Jusqu'en 2008, le Boulevard Sud dont la région est gestionnaire, était numéroté RN1006 (974). Le tracé étant incomplet, depuis le Boulevard Sud, il a été requalifié en RN6 (974).
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(Route Digue)Champ Fleuri, Le Butor || (Rue de l'Inde)La Trinité
(Rue Stanislas Gimard)Le Butor || (Rue Stanislas Gimard)VersD49, Bois de Nèfles, Ste Clotilde
(Rue Lory les Hauts)Le Butor || (Avenue Georges Brassens)Campus universitaire
(Avenue Hippolyte Foucque)Le Butor || (Avenue Georges Brassens)Campus universitaire, Hôtel de Région
D60(Route de Moufia)Le Butor, Mairie annexe || D60(Route de Moufia)Moufia
Le Chaudron, Parc des expositions || (Rue de la Guadeloupe)Moufia
(Quart d'échangeur [Sens Saint-Denis -> Saint-Benoît])La Bretagne, Commune Prima, Centre de Recherche
(Rue Joseph Wetzel)Commune Prima
N102(Route de la Rivière des Pluies)Commune Prima || (Rue des Lavandières Pipangailles)Commune Prima || N102(Route de la Rivière des Pluies) Ste MARIE-GILLOT