Nonobstant son numéro qui rappelle l'ancienne RN113, elle assure la continuité de la RN21.
Avant 2006, le même numéro avait été attribué simultanément à plusieurs déviations d'agglomération le long de l'ancienne RN113, notamment à Carcassonne (ouverte en 1987 et déclassée en 2006) et Vitrolles (ouverte en 1973, classée en 1989 et déclassée en 2006).
Tracés historiques
Contournement Sud d'Agen (actuel)
Chargement de la carte...
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