Route départementale française D172 (81)

Route départementale D172 (81), D700 (81)
Tunnels et viaducs sur la D172 le long du Tarn à Ambialet. © Jérémie
Localisation
Pays	France
Département	Tarn (81)
Caractéristiques actuelles
Itinéraire	Saint-Juéry - Trébas
Longueur	32,5 km

Présentation

• Les routes départementales D172 et D700 (81), ou RD172 et RD700 (81), forment un ensemble de routes départementales du Tarn (81) qui relient Saint-Juéry à Trébas.
• Elles sont prolongées dans l'Aveyron (12) par la D200.
• Ces routes reprennent le parcours de l'ancien projet inachevé de voie ferrée entre Saint-Juéry et Saint-Affrique par les Gorges du Tarn. Elles comportent donc un très grand nombre d'ouvrages d'art, tunnels, ponts et viaducs.
• Bien qu'étroites, la voie ferrée initialement prévue étant conçue à simple voie, elles écoulent un important trafic touristique en saison.

Historique

• Il existait divers chemins desservant les Gorges du Tarn, mais la mise aux normes des emprises ferroviaires a permis de réaliser un itinéraire continu.
• Les années indicatives d'aménagement des sections les plus importantes sont les suivantes, d'Ouest en Est :
  • Saint-Juéry - Les Avalats : 1964.
  • Les Avalats - Marsal : 1952.
  • Ambialet - Courris : 1974.
  • Courris - Gaycre : 1971.
  • Trébas - Aveyron : 1970.

Tracé

Chargement de la carte...

{"type":"HYBRID","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"mappingservice":"googlemaps3","width":"400px","height":"400px","centre":false,"title":"","label":"","icon":"","lines":[{"text":"","title":"","link":"","strokeColor":"#FCFF07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":43.95073160386579,"lon":2.2109341621398926},{"lat":43.95096332595299,"lon":2.211470603942871},{"lat":43.95170483056084,"lon":2.2128653526306152},{"lat":43.951874757397185,"lon":2.216212749481201},{"lat":43.9522764007153,"lon":2.217864990234375},{"lat":43.95216826624282,"lon":2.2194528579711914},{"lat":43.951782070092136,"lon":2.2211480140686035},{"lat":43.95079339651071,"lon":2.2226929664611816},{"lat":43.95012912221092,"lon":2.2258472442626953},{"lat":43.950252708689305,"lon":2.2307395935058594},{"lat":43.94988194848319,"lon":2.2326064109802246},{"lat":43.94906317816811,"lon":2.2341513633728027},{"lat":43.94824439657399,"lon":2.234988212585449},{"lat":43.946375060476704,"lon":2.2356319427490234},{"lat":43.944057620067305,"lon":2.2364044189453125},{"lat":43.94279071444996,"lon":2.2373270988464355},{"lat":43.940967558986124,"lon":2.239108085632324},{"lat":43.93775372508538,"lon":2.2422409057617188},{"lat":43.936424877615416,"lon":2.2441720962524414},{"lat":43.93406069231476,"lon":2.24869966506958},{"lat":43.932360892829394,"lon":2.2507166862487793},{"lat":43.930800125063044,"lon":2.2539567947387695},{"lat":43.93024380189822,"lon":2.2562098503112793},{"lat":43.930181987892034,"lon":2.257711887359619},{"lat":43.93046015041401,"lon":2.2596216201782227},{"lat":43.93107828469405,"lon":2.262239456176758},{"lat":43.93175822498195,"lon":2.2641921043395996},{"lat":43.932515422062956,"lon":2.2684192657470703},{"lat":43.9329017433902,"lon":2.2696852684020996},{"lat":43.934045239811,"lon":2.271723747253418},{"lat":43.93424612204675,"lon":2.2730541229248047},{"lat":43.9340761448145,"lon":2.274470329284668},{"lat":43.933643473303775,"lon":2.276616096496582},{"lat":43.93211364522053,"lon":2.2820448875427246},{"lat":43.93160369378093,"lon":2.2829461097717285},{"lat":43.930181987892034,"lon":2.284576892852783},{"lat":43.92971838079781,"lon":2.2858643531799316},{"lat":43.929594751629025,"lon":2.287323474884033},{"lat":43.929872916897395,"lon":2.288525104522705},{"lat":43.93038288317729,"lon":2.289576530456543},{"lat":43.93131008339278,"lon":2.2903919219970703},{"lat":43.93282447932551,"lon":2.291271686553955},{"lat":43.93351985229396,"lon":2.2920656204223633},{"lat":43.93406069231476,"lon":2.2933530807495117},{"lat":43.934277026945864,"lon":2.295048236846924},{"lat":43.93406069231476,"lon":2.296614646911621},{"lat":43.93341168369955,"lon":2.297945022583008},{"lat":43.932329986934505,"lon":2.2997260093688965},{"lat":43.93151097486757,"lon":2.303159236907959},{"lat":43.93155733434231,"lon":2.3055195808410645},{"lat":43.9321754572191,"lon":2.312772274017334},{"lat":43.93254632786149,"lon":2.315089702606201},{"lat":43.932669950895,"lon":2.321934700012207},{"lat":43.93197456798883,"lon":2.3259472846984863},{"lat":43.9319282088393,"lon":2.3275351524353027},{"lat":43.93214455122786,"lon":2.3340582847595215},{"lat":43.93226817509653,"lon":2.335216999053955},{"lat":43.93214455122786,"lon":2.337019443511963},{"lat":43.9314182558097,"lon":2.339487075805664},{"lat":43.931279176951826,"lon":2.3409032821655273},{"lat":43.93129463017431,"lon":2.343285083770752},{"lat":43.931495521701294,"lon":2.3447442054748535},{"lat":43.93226817509653,"lon":2.3476195335388184},{"lat":43.93308717673588,"lon":2.3488211631774902},{"lat":43.93597677166331,"lon":2.3524045944213867},{"lat":43.93897438438248,"lon":2.3566102981567383},{"lat":43.939685136479966,"lon":2.35856294631958},{"lat":43.94302246749521,"lon":2.368347644805908},{"lat":43.9434241706335,"lon":2.370944023132324},{"lat":43.94347052082094,"lon":2.3731541633605957},{"lat":43.94367137121559,"lon":2.374999523162842},{"lat":43.944150319418284,"lon":2.3765015602111816},{"lat":43.94444386640943,"lon":2.3772311210632324},{"lat":43.9448146605369,"lon":2.377746105194092}]},{"text":"","title":"","link":"","strokeColor":"#F412F1","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":43.9448146605369,"lon":2.377746105194092},{"lat":43.94459913677892,"lon":2.3780572414398193},{"lat":43.9444369140446,"lon":2.378164529800415},{"lat":43.943818918620316,"lon":2.377885580062866},{"lat":43.943254992189786,"lon":2.378014326095581},{"lat":43.94269106040992,"lon":2.378593683242798},{"lat":43.94235887891272,"lon":2.3791515827178955},{"lat":43.94176403764063,"lon":2.380235195159912},{"lat":43.94113828909976,"lon":2.382456064224243},{"lat":43.94112283843518,"lon":2.3835289478302},{"lat":43.941400949783144,"lon":2.384902238845825}]},{"text":"","title":"","link":"","strokeColor":"#FCFF07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":43.941400949783144,"lon":2.384902238845825},{"lat":43.941516829127536,"lon":2.385106086730957},{"lat":43.94171768612272,"lon":2.3857498168945312},{"lat":43.94269106040992,"lon":2.387552261352539},{"lat":43.94391161834353,"lon":2.3925089836120605},{"lat":43.94393479325173,"lon":2.3937535285949707},{"lat":43.94365669375688,"lon":2.3950088024139404},{"lat":43.94261380906456,"lon":2.3978519439697266},{"lat":43.941655884042625,"lon":2.400566339492798},{"lat":43.94164043351257,"lon":2.401714324951172},{"lat":43.94171768612272,"lon":2.4027657508850098},{"lat":43.94206532162618,"lon":2.4036669731140137},{"lat":43.942582908498316,"lon":2.4044179916381836},{"lat":43.943455843312634,"lon":2.405287027359009},{"lat":43.94418199171054,"lon":2.4058878421783447},{"lat":43.94479998336047,"lon":2.4061882495880127},{"lat":43.94819109841872,"lon":2.4069392681121826},{"lat":43.94886311870652,"lon":2.407282590866089},{"lat":43.949782306566355,"lon":2.407926321029663},{"lat":43.95065513566161,"lon":2.408956289291382},{"lat":43.95135030010727,"lon":2.4100399017333984},{"lat":43.951906425809476,"lon":2.4111557006835938},{"lat":43.952269449502275,"lon":2.4124324321746826},{"lat":43.95270198547526,"lon":2.414470911026001},{"lat":43.95271743313035,"lon":2.4155116081237793},{"lat":43.952547508703425,"lon":2.4165308475494385},{"lat":43.952176762812805,"lon":2.4174964427948},{"lat":43.95161291567068,"lon":2.4181723594665527},{"lat":43.95016079155336,"lon":2.41923451423645},{"lat":43.949589201052625,"lon":2.419910430908203},{"lat":43.94916436671398,"lon":2.420886754989624},{"lat":43.948940361930916,"lon":2.4218523502349854},{"lat":43.948924913294064,"lon":2.4227535724639893},{"lat":43.9491102966712,"lon":2.423708438873291},{"lat":43.949481061690875,"lon":2.424556016921997},{"lat":43.950021756532074,"lon":2.4253499507904053},{"lat":43.95114175162733,"lon":2.4263370037078857},{"lat":43.95387599581899,"lon":2.4281930923461914},{"lat":43.95457112259074,"lon":2.4289870262145996},{"lat":43.95511177112504,"lon":2.430124282836914},{"lat":43.955389817027374,"lon":2.4313902854919434},{"lat":43.95541298746052,"lon":2.432398796081543},{"lat":43.95514266517845,"lon":2.4334716796875},{"lat":43.954671529119025,"lon":2.4345016479492188},{"lat":43.9539146141863,"lon":2.435241937637329},{"lat":43.95274060460547,"lon":2.436164617538452},{"lat":43.95208407597873,"lon":2.4371731281280518},{"lat":43.95081734142622,"lon":2.440338134765625},{"lat":43.95057017056061,"lon":2.441689968109131},{"lat":43.950577894665734,"lon":2.4432778358459473},{"lat":43.95077099696721,"lon":2.444479465484619},{"lat":43.95123443993097,"lon":2.4459385871887207},{"lat":43.951497056006346,"lon":2.446979284286499},{"lat":43.95167470739929,"lon":2.4482882022857666}]},{"text":"","title":"","link":"","strokeColor":"#F412F1","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":43.95167470739929,"lon":2.4482882022857666},{"lat":43.95180601460931,"lon":2.44920015335083},{"lat":43.952030008592125,"lon":2.4510884284973145},{"lat":43.95179056671731,"lon":2.4545109272003174},{"lat":43.951512503974634,"lon":2.4551331996917725},{"lat":43.950740100641134,"lon":2.456367015838623},{"lat":43.949094848078545,"lon":2.457536458969116},{"lat":43.948685458909495,"lon":2.458137273788452},{"lat":43.94800571217463,"lon":2.459285259246826},{"lat":43.947797151958895,"lon":2.460089921951294},{"lat":43.94755769303101,"lon":2.4610447883605957},{"lat":43.94734140671856,"lon":2.46268630027771},{"lat":43.94624451378214,"lon":2.46618390083313},{"lat":43.94602049799512,"lon":2.4675142765045166},{"lat":43.94585827913957,"lon":2.468748092651367},{"lat":43.94580420608935,"lon":2.4736404418945312},{"lat":43.94441373933213,"lon":2.4782001972198486},{"lat":43.9441433670191,"lon":2.479444742202759}]},{"text":"","title":"","link":"","strokeColor":"#FCFF07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":43.9441433670191,"lon":2.479444742202759},{"lat":43.94442918914145,"lon":2.4796056747436523},{"lat":43.94458368701377,"lon":2.4798202514648438},{"lat":43.94400431792216,"lon":2.481966018676758},{"lat":43.94317001651047,"lon":2.485882043838501},{"lat":43.943085040709704,"lon":2.486675977706909},{"lat":43.943108215940136,"lon":2.488532066345215},{"lat":43.943316792607554,"lon":2.492544651031494},{"lat":43.94348674342515,"lon":2.493445873260498},{"lat":43.94390389337209,"lon":2.494368553161621},{"lat":43.945271197676576,"lon":2.497361898422241},{"lat":43.94596642509245,"lon":2.498091459274292},{"lat":43.94656122431641,"lon":2.4984562397003174},{"lat":43.947210089644905,"lon":2.498563528060913},{"lat":43.948824497056705,"lon":2.4987030029296875},{"lat":43.95012217074674,"lon":2.498370409011841},{"lat":43.950832789571166,"lon":2.4984347820281982},{"lat":43.95148160803404,"lon":2.498660087585449},{"lat":43.952223106175595,"lon":2.499089241027832},{"lat":43.953497534491376,"lon":2.500516176223755},{"lat":43.95443209788687,"lon":2.5016748905181885},{"lat":43.95514266517845,"lon":2.502715587615967},{"lat":43.955621520952185,"lon":2.503756284713745},{"lat":43.95702717206326,"lon":2.5070178508758545},{"lat":43.95733610191633,"lon":2.50813364982605},{"lat":43.958564082201065,"lon":2.5138092041015625},{"lat":43.95887300406356,"lon":2.5165557861328125},{"lat":43.959253361900544,"lon":2.517711818218231},{"lat":43.95982968626749,"lon":2.5185365974903107},{"lat":43.96064299883186,"lon":2.51920647919178},{"lat":43.96176013909815,"lon":2.519691623747349},{"lat":43.96523257599442,"lon":2.5205951929092407},{"lat":43.96770604162588,"lon":2.5212838500738144},{"lat":43.970579717369134,"lon":2.5226259604096413},{"lat":43.97109765916685,"lon":2.5227713026106358},{"lat":43.97149205439912,"lon":2.522777169942856},{"lat":43.97193458468943,"lon":2.5226611644029617},{"lat":43.97331137812464,"lon":2.522062361240387},{"lat":43.97402473567125,"lon":2.5216283462941647},{"lat":43.97464543300813,"lon":2.521451823413372},{"lat":43.97519193083198,"lon":2.5214850157499313},{"lat":43.9758216638094,"lon":2.5216801464557648},{"lat":43.97650543527307,"lon":2.5222400575876236},{"lat":43.977117541580206,"lon":2.5229813531041145},{"lat":43.97753168087737,"lon":2.5237704254686832},{"lat":43.97785317065022,"lon":2.5249457359313965}]}],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":10,"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\u003ESaint-Ju\u00e9ry\n\u003C/p\u003E\u003C/div\u003E","title":"Saint-Ju\u00e9ry\n","link":"","lat":43.95073160386579,"lon":2.2109341621398926,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EAveyron\n\u003C/p\u003E\u003C/div\u003E","title":"Aveyron\n","link":"","lat":43.97785317065022,"lon":2.5249457359313965,"icon":""}]}

Légende de la carte ou du tableau
En jaune	Tracé des D172 et D700 (81)
En violet	Troncs communs avec d'autres routes
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.

• Tarn (81) - D172
  • D69 Saint-Juéry
  • Les Avalats
  • Marsal
  • Fabas
  • Riou-del-Bosc
  • Ambialet
• Tarn (81) - D700
  • Courris
  • Gaycre D53
  •  Court tronc commun avec la D53.
  • Trébas D53
• Tarn (81) - D172
• Aveyron (12) - D200