Route départementale française D21 (91)

Route départementale D21 (91)
Localisation
Pays	France
Département	Essonne (91)
Caractéristiques actuelles
Itinéraire	N20 - D24 (Étampes - Sainte-Escobille-Limite de l'Eure-et-Loir)
Longueur	16 km

Présentation

• La route départementale D21 (91), ou RD21 (91), est une route départementale de l'Essonne (91) qui relie Étampes à Sainte-Escobille. Elle est prolongée dans le département d'Eure-et-Loir par la D24 (28).
• Orientée de l'est vers l'ouest, elle constitue le début du trajet offrant la distance la plus courte d’Étampes à Chartres. Elle suit la vallée de la Chalouette, puis traverse le plateau de la Beauce. La seule agglomération notable rencontrée est Chalo-Saint-Mars, à la jonction de ces deux sections.
• Elle possède une annexe, à Étampes :
  • La D211, qui est une bretelle de raccordement à la N20, depuis la direction d'Orléans. Elle fut ouverte en 1962.

Historique

• La D21 s'embranchait autrefois sur la RN20 au coeur du quartier Saint-Martin, à Étampes. Elle fut prolongée vers le sud en 1962, suite à la déviation de la RN20, par récupération de l'extrémité sud de l'ancien trajet urbain de celle-ci.

Autour de la route

• Tour penchée de l'église Saint-Martin, à Étampes
• Vallée de la Louette et de la Chalouette
• Château du Grand-Saint-Mars, à Chalo-Saint-Mars
• Manoir du Tronchet, à Chalo-Saint-Mars

Tracé

Chargement de la carte...

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Légende de la carte ou du tableau
En jaune	Tracé de la D21.
En vert	Tracé de la D211.
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.

• Essonne (91) - D21
  • N20 D49 D191 D207 Étampes
  • Valnay
  • Le Four Blanc
  • La Marette
  • La Chalouette
  • Chalo-Saint-Mars
  • Mérobert
  • D838
  • Guillerville
• Eure-et-Loir (28) - D24