Route départementale française D21 (60)

Route départementale D21 (60)
La D21 (60) à Chambly en direction de Persan. © Google Maps
Localisation
Pays	France
Département	Oise (60)
Caractéristiques actuelles
Itinéraire	D49 / D924 - D78 (95) (Chambly - Persan)
Longueur	1,5 km

Présentation

• La route départementale D21 (60), ou RD21 (60), est une courte route départementale de l'Oise (60), reliant le centre-ville de Chambly à Persan dans le département limitrophe du Val-d'Oise (95).
• Au sein de celui-ci, la route est prolongée par la D78 (95) en direction de Beaumont-sur-Oise.
• Pour l'anecdote, ces deux axes reprennent un ancien tracé de la RN1 déviée dans les années 1950-60.

Historique

Généralités

• Avant la réforme de la création de la voirie vicinale en 1834, la D21 avait un tout autre tracé. En effet, une plaque de cocher présente à Montreuil-sur-Brêche montre que la D151 (60) (ex-Gc 151) a été reprise sur l'ancienne D21.
• Après cette première réforme, le Gc21 a été défini comme la route reliant Chambly à Chantilly. Cette route a été reclassée lors de la réforme des années 1930 en D924 jusqu'à la forêt du Lys-Chantilly et en D909 jusqu'à Chantilly.

Aménagements

• Intégralement situés en traversée de Chambly, listés ci-après :
  • Giratoire de la Place Martel Vauquelin (D49 et D924), remplaçant un complexe carrefour à feux : mai 2011.
  • Requalification de l'Avenue Aristide Briand : 2004.
  • Giratoire de la Rue François Truffaut (Z.A.C. des Portes de l'Oise) : 1991.

Autour de la route

•  Chambly : Z.A.C. Les Portes de l'Oise

Tracé

Chargement de la carte...

{"type":"HYBRID","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"mappingservice":"googlemaps3","width":"450px","height":"350px","centre":{"text":"","title":"","link":"","lat":49.17586800000000124555299407802522182464599609375,"lon":2.35313399999999983691623128834180533885955810546875,"icon":""},"title":"","label":"","icon":"","lines":[{"text":"","title":"","link":"","strokeColor":"#FCFF07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":49.15841499999999797410055180080235004425048828125,"lon":2.261337999999999848199649932212196290493011474609375},{"lat":49.16245599999999882356860325671732425689697265625,"lon":2.25352800000000019764456737902946770191192626953125},{"lat":49.167001999999996542101143859326839447021484375,"lon":2.248463999999999796131078255712054669857025146484375},{"lat":49.167001999999996542101143859326839447021484375,"lon":2.248591999999999924142457530251704156398773193359375}]},{"text":"","title":"","link":"","strokeColor":"#009D47","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":49.163984999999996716724126599729061126708984375,"lon":2.240632000000000179085191120975650846958160400390625},{"lat":49.1633819999999985839167493395507335662841796875,"lon":2.242294999999999927098315311013720929622650146484375},{"lat":49.16409800000000274167177849449217319488525390625,"lon":2.243635999999999963705477057374082505702972412109375},{"lat":49.1653179999999991878212313167750835418701171875,"lon":2.245223999999999886512114244396798312664031982421875},{"lat":49.16624399999999894816937739960849285125732421875,"lon":2.245867000000000057724491853150539100170135498046875},{"lat":49.166707000000002381057129241526126861572265625,"lon":2.246382000000000100925490187364630401134490966796875},{"lat":49.16754900000000105819708551280200481414794921875,"lon":2.252476000000000144751766129047609865665435791015625},{"lat":49.16754900000000105819708551280200481414794921875,"lon":2.2549440000000000594582161284051835536956787109375},{"lat":49.1667350000000027421265258453786373138427734375,"lon":2.2614879999999999427018337883055210113525390625},{"lat":49.16652500000000003410605131648480892181396484375,"lon":2.264921999999999879804590818821452558040618896484375},{"lat":49.16610399999999714282239438034594058990478515625,"lon":2.269320000000000003836930773104541003704071044921875},{"lat":49.16629300000000313275450025685131549835205078125,"lon":2.27326899999999998414068613783456385135650634765625},{"lat":49.16615999999999786496118758805096149444580078125,"lon":2.27588699999999999334931999328546226024627685546875},{"lat":49.1658469999999994115569279529154300689697265625,"lon":2.277181999999999817418938619084656238555908203125},{"lat":49.16508900000000181762516149319708347320556640625,"lon":2.279370999999999813923068359144963324069976806640625},{"lat":49.1650470000000012760210665874183177947998046875,"lon":2.282052999999999887137391851865686476230621337890625},{"lat":49.16481300000000231875674217008054256439208984375,"lon":2.284727000000000174395609064958989620208740234375}]},{"text":"","title":"","link":"","strokeColor":"#009D47","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":49.16239999999999810142981004901230335235595703125,"lon":2.34607499999999991047161529422737658023834228515625},{"lat":49.1637750000000011141310096718370914459228515625,"lon":2.35148199999999985010390446404926478862762451171875},{"lat":49.1670299999999969031705404631793498992919921875,"lon":2.35736100000000003973354978370480239391326904296875},{"lat":49.16694600000000292538970825262367725372314453125,"lon":2.35839100000000012613554645213298499584197998046875},{"lat":49.1673109999999979891072143800556659698486328125,"lon":2.359207000000000054029669627198018133640289306640625},{"lat":49.16683400000000148111212183721363544464111328125,"lon":2.35946400000000000574118530494160950183868408203125},{"lat":49.16660900000000111731424112804234027862548828125,"lon":2.36156699999999997174882082617841660976409912109375},{"lat":49.16739499999999907231540419161319732666015625,"lon":2.3613949999999999107558323885314166545867919921875},{"lat":49.16840499999999991587174008600413799285888671875,"lon":2.36525799999999986056309353443793952465057373046875},{"lat":49.16820799999999991314325598068535327911376953125,"lon":2.367404000000000063863581090117804706096649169921875},{"lat":49.16862900000000280442691291682422161102294921875,"lon":2.368218999999999851979737286455929279327392578125},{"lat":49.1689099999999967849362292326986789703369140625,"lon":2.37324000000000001620037437533028423786163330078125},{"lat":49.17208099999999859619492781348526477813720703125,"lon":2.375042000000000097514885055716149508953094482421875},{"lat":49.17592400000000196769178728573024272918701171875,"lon":2.382766999999999857351440368802286684513092041015625},{"lat":49.1783089999999987185219652019441127777099609375,"lon":2.38916199999999978587084115133620798587799072265625}]},{"text":"","title":"","link":"","strokeColor":"#1EFB07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":49.1783089999999987185219652019441127777099609375,"lon":2.38916199999999978587084115133620798587799072265625},{"lat":49.18108600000000052432369557209312915802001953125,"lon":2.395642000000000049197979024029336869716644287109375},{"lat":49.183751000000000885847839526832103729248046875,"lon":2.405855999999999994543031789362430572509765625},{"lat":49.18439599999999956025931169278919696807861328125,"lon":2.41160599999999991638333085575141012668609619140625},{"lat":49.18436799999999919918991508893668651580810546875,"lon":2.414245999999999892082769292755983769893646240234375},{"lat":49.18476100000000172940417542122304439544677734375,"lon":2.41484599999999982600229486706666648387908935546875},{"lat":49.18476100000000172940417542122304439544677734375,"lon":2.41628400000000009839595804805867373943328857421875},{"lat":49.18591099999999727288013673387467861175537109375,"lon":2.41735699999999997800159690086729824542999267578125},{"lat":49.18644400000000160844138008542358875274658203125,"lon":2.41828000000000020719426174764521420001983642578125},{"lat":49.18784600000000040154191083274781703948974609375,"lon":2.41945999999999994400923242210410535335540771484375},{"lat":49.18787400000000076261130743660032749176025390625,"lon":2.423537000000000052324367061373777687549591064453125},{"lat":49.188322999999996909537003375589847564697265625,"lon":2.426883999999999819152662894339300692081451416015625},{"lat":49.18759399999999715191734139807522296905517578125,"lon":2.4298880000000000478621586808003485202789306640625},{"lat":49.18781800000000004047251422889530658721923828125,"lon":2.43336400000000008247980076703242957592010498046875},{"lat":49.1885759999999976344042806886136531829833984375,"lon":2.44143199999999982452436597668565809726715087890625},{"lat":49.18958500000000100271790870465338230133056640625,"lon":2.451602999999999976665776557638309895992279052734375},{"lat":49.18938899999999847523213247768580913543701171875,"lon":2.4532769999999999299689079634845256805419921875},{"lat":49.1905110000000007630660547874867916107177734375,"lon":2.456281000000000158678403749945573508739471435546875},{"lat":49.1906510000000025684130378067493438720703125,"lon":2.457396999999999831487684787134639918804168701171875},{"lat":49.19166100000000341196937370114028453826904296875,"lon":2.458512999999999948386175674386322498321533203125},{"lat":49.19311900000000292720869765616953372955322265625,"lon":2.464177999999999979507947500678710639476776123046875},{"lat":49.19326000000000220779838855378329753875732421875,"lon":2.465208000000000065909944169106893241405487060546875}]}],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":11,"layers":[],"controls":["pan","zoom","streetview","type","scale"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"resizable":false,"kmlrezoom":false,"poi":true,"cluster":false,"clustergridsize":60,"clustermaxzoom":20,"clusterzoomonclick":true,"clusteraveragecenter":true,"clusterminsize":2,"imageoverlays":[],"kml":[],"gkml":[],"searchmarkers":"","fullscreen":false,"scrollwheelzoom":false,"locations":[{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EPersan\n\u003C/p\u003E\u003C/div\u003E","title":"Persan\n","link":"","lat":49.15841499999999797410055180080235004425048828125,"lon":2.261337999999999848199649932212196290493011474609375,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EChambly\n\u003C/p\u003E\u003C/div\u003E","title":"Chambly\n","link":"","lat":49.167001999999996542101143859326839447021484375,"lon":2.248591999999999924142457530251704156398773193359375,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ci\u003EGare SNCF de Chambly\u003C/i\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Gare SNCF de Chambly\n","link":"","lat":49.163984999999996716724126599729061126708984375,"lon":2.240632000000000179085191120975650846958160400390625,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ci\u003ELes Quatre Chemins\u003C/i\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"Les Quatre Chemins\n","link":"","lat":49.16481300000000231875674217008054256439208984375,"lon":2.284727000000000174395609064958989620208740234375,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBruy\u00e8res-sur-Oise\n\u003C/p\u003E\u003C/div\u003E","title":"Bruy\u00e8res-sur-Oise\n","link":"","lat":49.16239999999999810142981004901230335235595703125,"lon":2.34607499999999991047161529422737658023834228515625,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ci\u003EFor\u00eat du Lys\u003C/i\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"For\u00eat du Lys\n","link":"","lat":49.1783089999999987185219652019441127777099609375,"lon":2.38916199999999978587084115133620798587799072265625,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EChantilly\n\u003C/p\u003E\u003C/div\u003E","title":"Chantilly\n","link":"","lat":49.19326000000000220779838855378329753875732421875,"lon":2.465208000000000065909944169106893241405487060546875,"icon":""}]}

Légende de la carte
En jaune	Tracé de la D21 (60).
En vert	Tracé repris par la D909.
En vert foncé	Ancien tracé du Gc21 repris par la D924.
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.

• Oise (60) - D21
  • Chambly Église Notre-Dame XIII-XIV^e, Chapelle Saint-Aubin, Pavillon Conti, Site Archéologique du Marais
    • D49 D924 Place Martel Vauquelin (vers D105 D923)
    • Avenue des Martyrs
    • Avenue Aristide Briand  
    • Route de Beaumont    Z.A.C. Les Portes de l'Oise
    • Avenue Jacques Vogt
• Val-d'Oise (95) - D78

Diaporama

Photos : © R.Grodzki

Plaque de cocher sur l'ancien tracé de la D21 à Montreuil-sur-Brêche.

Plaque de cocher sur l'ancien tracé du Gc21 à Chambly.

Plaque de cocher sur l'ancien tracé du Gc21, devenu RN309 à Chantilly.