Route départementale française D121 (95)

Route départementale D121 (95)
La D121 (95) à Cormeilles-en-Parisis en direction d'Herblay. © GPS Nico
Localisation
Pays	France
Département	Val-d'Oise (95)
Caractéristiques actuelles
Itinéraire	D121 - D392 (Sartrouville - Cormeilles-en-Parisis)
Longueur	1,5 km

Présentation

• La route départementale D121 (95), ou RD121 (95), est une courte route départementale du Val-d'Oise (95) reliant Sartrouville à Cormeilles-en-Parisis, tout en assurant la continuité de la D121 (78) en provenance des Yvelines (78).
• Cette route départementale participe dans la traversée de cette dernière agglomération à la desserte des enseignes commerciales contenues dans la Zone d'Activité Concertée des Bois Rochefort.

Historique

• La déviation Sud de Cormeilles-en-Parisis avec un raccord direct sur le Carrefour des Martyrs de Châteaubriant (D392) est mise en service au début des années 1980. Cet aménagement délestant la traversée de la ville déclasse l'itinéraire originel dans la voirie communale. Son usage, purement local, devient progressivement interdit à certaines catégories d'usagers (véhicules de plus de 3,5 tonnes et véhicules supérieurs à 3,9 mètres de hauteur sous le pont ferroviaire du Transilien (ligne J)).
• Le 13 janvier 2001, le Conseil départemental réuni en séance plénière approuve la réalisation d'un seconde déviation de la D121, dans le cadre de la réalisation de la Zone d'Activité Concertée des Bois Rochefort sur cette même agglomération.
• Cette voie nouvelle a été réalisée par l'Agence Foncière et Technique de la Région Parisienne. Elle est complétée par un embranchement numéroté D121^E, facilitant depuis Bezons et Argenteuil l'accès à ladite zone d'activités (D392).
• Par une décision du 17 janvier 2014, le Conseil départemental réuni en séance plénière délibère favorablement au classement de ces voies dans le réseau routier départemental, en échange du déclassement de la D121 déviée réalisée 35 ans plus tôt.

Tracé

Chargement de la carte...

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Légende de la carte
En jaune	Tracé de la D121 (95).
En vert	Tracé de la D121E (95).
En bleu ciel	Tracé déclassé en 2014.
En blanc	Tracé déclassé dans les années 1980.
Pour plus d'informations sur les sources cartographiques, consulter cet article.
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Ancien tracé de la D121 (95) à Cormeilles-en-Parisis déclassé en 2014.
© Google Maps

• Yvelines (78) - D121
• Val-d'Oise (95) - D121
  • Cormeilles-en-Parisis Église XII-XVI^e
    • Les Bois Rochefort  
    • Les Coudrées  
    • Les Bruyères   D121^E (vers D392)
    • Carrefour des Martyrs de Châteaubriant   D392