Autoroute française B48 (Ancien numéro)

Autoroute B48 (Ancien numéro)
L'Autoroute A480 à Seyssinet-Pariset. © France Autoroutes
Localisation
Pays	France
Région	Auvergne-Rhône-Alpes
Caractéristiques principales
Itinéraire	A48 - A51/D1075 - D1091 (Saint-Égrève - Claix - Vizille)
Longueur	24 km
Historique
Ouverture	1968
Reclassement	1982
Renumérotation	A480

Présentation

• La B48 désigne l'ancien numéro de l'A480 jusqu'en 1982. Le numéro B48, comme tous les numéros commençant par une lettre autre que A, est depuis inutilisé.
• Cette autoroute prend naissance sur l'A48 au niveau de la commune de Saint-Egrève suit le Drac par sa rive droite depuis l'A48 et ce, jusqu'à Pont-de-Claix.
• Cette dernière compte de nombreux échangeurs permettant la desserte du centre-ville de Grenoble ainsi que de l'Ouest de l'agglomération.

Historique

• L'idée de créer une autoroute dans le prolongement de l'A48 le long du Drac desservant l'Ouest Grenoblois date du début des années 1960.
• Une première phase, allant de l'A48 jusqu'à la D1075 au niveau de Varces-Allières-et-Risset (actuel échangeur N° 10 de l'A51), a obtenu une DUP le 03 05 1963 et fut mise en service dès le 12 08 1967 en raison des Jeux Olympiques d'Hiver de 1968 reçus par la ville de Grenoble.
• Cette première phase devait par la suite être complétée par une deuxième, prolongeant l'autoroute au-delà de Vizille.
• Ce prolongement devait suivre la rive gauche du Drac et de la Romanche jusqu'à l'Est de Champ-sur-Drac puis réutiliser la D1091 sur 1,5 km avant de contourner Vizille en réutilisant la déviation construite en 1967.
• Ce projet fut finalement abandonnée en 1979, remplacé par un aménagement partiel de la RN85 ainsi qu'un contournement de l'agglomération du Pont-de-Claix par le Nord et une déviation de Champ-sur-Drac réutilisant partiellement le projet de la B48 .
• Le projet de 1979 fut grandement revu en 1986, pour aboutir à l'aménagement que l'on connait aujourd'hui suivant le Drac par sa rive droite, ce qui confirme l'abandon définitif du tracé de la B48 en rive gauche pour la section Claix - Vizille.

Tracé

Chargement de la carte...

{"type":"HYBRID","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"mappingservice":"googlemaps3","width":"550px","height":"550px","centre":false,"title":"","label":"","icon":"","lines":[{"text":"","title":"","link":"","strokeColor":"#03FAEB","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.10645305280086,"lon":5.685467720031738},{"lat":45.10562009104122,"lon":5.686883926391602},{"lat":45.10445392415825,"lon":5.689373016357422},{"lat":45.10301511400808,"lon":5.691797733306885},{"lat":45.101667143178574,"lon":5.693535804748535},{"lat":45.10054633421133,"lon":5.694780349731445},{"lat":45.09884993330412,"lon":5.696539878845215},{"lat":45.09647185725267,"lon":5.698707103729248},{"lat":45.09454811817714,"lon":5.700466632843018},{"lat":45.09344231756608,"lon":5.702011585235596},{"lat":45.0925334243197,"lon":5.703856945037842},{"lat":45.09163966518888,"lon":5.706818103790283},{"lat":45.09092767756733,"lon":5.710916519165039},{"lat":45.09074589207138,"lon":5.714929103851318},{"lat":45.0905944037161,"lon":5.718576908111572},{"lat":45.09029142580014,"lon":5.721580982208252},{"lat":45.089836955912716,"lon":5.723469257354736},{"lat":45.08835232907946,"lon":5.727910995483398},{"lat":45.0868222141071,"lon":5.7323527336120605},{"lat":45.086004116019375,"lon":5.734047889709473},{"lat":45.08527690788309,"lon":5.735142230987549},{"lat":45.08456484094614,"lon":5.7360005378723145},{"lat":45.08359520361106,"lon":5.737824440002441},{"lat":45.08318613292423,"lon":5.739068984985352},{"lat":45.082883115712164,"lon":5.740807056427002},{"lat":45.082792210235134,"lon":5.742394924163818},{"lat":45.08301947365647,"lon":5.74434757232666},{"lat":45.08403457256767,"lon":5.749325752258301},{"lat":45.08515570562702,"lon":5.754883289337158},{"lat":45.085246607343194,"lon":5.756192207336426},{"lat":45.08507995408639,"lon":5.757801532745361},{"lat":45.08454969048936,"lon":5.760097503662109},{"lat":45.08376186119928,"lon":5.762243270874023},{"lat":45.08276190837733,"lon":5.764153003692627},{"lat":45.08194375214102,"lon":5.765140056610107},{"lat":45.08077710168735,"lon":5.765933990478516},{"lat":45.07947406133018,"lon":5.766642093658447}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ERN85 au Pont-de-Claix\n\u003C/p\u003E\u003C/div\u003E","title":"RN85 au Pont-de-Claix\n","link":"","strokeColor":"#F30A2B","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.12728677171994,"lon":5.691003799438477},{"lat":45.126317859784365,"lon":5.691347122192383},{"lat":45.125470048340354,"lon":5.692076683044434},{"lat":45.12350186605351,"lon":5.694179534912109},{"lat":45.12216951950342,"lon":5.695939064025879},{"lat":45.12107939463703,"lon":5.697054862976074},{"lat":45.11983783816963,"lon":5.697612762451172},{"lat":45.11638556355711,"lon":5.698642730712891},{"lat":45.11438678278767,"lon":5.699114799499512},{"lat":45.11232735968008,"lon":5.699200630187988},{"lat":45.11047987277489,"lon":5.699243545532227},{"lat":45.109177510003136,"lon":5.699501037597656},{"lat":45.108571749751384,"lon":5.700101852416992},{"lat":45.10708760996492,"lon":5.701818466186523},{"lat":45.10454328055285,"lon":5.705423355102539},{"lat":45.103634563994014,"lon":5.707225799560547},{"lat":45.10328621881128,"lon":5.708427429199219},{"lat":45.10308932711559,"lon":5.7108306884765625},{"lat":45.102725832970386,"lon":5.712890625},{"lat":45.10239262889523,"lon":5.714306831359863},{"lat":45.10175650485951,"lon":5.71537971496582}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ERN85 d\u00e9viation de Champ-sur-Drac\n\u003C/p\u003E\u003C/div\u003E","title":"RN85 d\u00e9viation de Champ-sur-Drac\n","link":"","strokeColor":"#F30A2B","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.09073074325393,"lon":5.725400447845459},{"lat":45.08894315458479,"lon":5.729713439941406},{"lat":45.08724640850286,"lon":5.733683109283447},{"lat":45.08595866578207,"lon":5.736837387084961},{"lat":45.085337508914705,"lon":5.7379961013793945},{"lat":45.08453454002853,"lon":5.738639831542969},{"lat":45.083686107810394,"lon":5.739305019378662},{"lat":45.08312552961038,"lon":5.7398200035095215},{"lat":45.082580096892926,"lon":5.740485191345215},{"lat":45.082231623263844,"lon":5.741536617279053},{"lat":45.08211041454682,"lon":5.742588043212891},{"lat":45.0822013211087,"lon":5.74359655380249},{"lat":45.082504341936975,"lon":5.744433403015137},{"lat":45.082989171919195,"lon":5.745635032653809},{"lat":45.08351945000118,"lon":5.746793746948242}]},{"text":"","title":"","link":"","strokeColor":"#1EFB07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.13564446643941,"lon":5.690510272979736},{"lat":45.13416103074027,"lon":5.700788497924805},{"lat":45.133130170097566,"lon":5.706925392150879},{"lat":45.13258521499274,"lon":5.70889949798584},{"lat":45.13213108176094,"lon":5.71014404296875},{"lat":45.13146501314634,"lon":5.710916519165039},{"lat":45.130677831118376,"lon":5.711216926574707},{"lat":45.12834649753309,"lon":5.711560249328613},{"lat":45.12347158302341,"lon":5.711174011230469},{"lat":45.11980755319461,"lon":5.710916519165039},{"lat":45.11856596905122,"lon":5.710487365722656},{"lat":45.117142656430524,"lon":5.709414482116699},{"lat":45.11447763520512,"lon":5.705208778381348}]},{"text":"","title":"","link":"","strokeColor":"#1EFB07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.09156392039758,"lon":5.723962783813477},{"lat":45.08979150687582,"lon":5.725851058959961},{"lat":45.08891285414031,"lon":5.727396011352539},{"lat":45.08823113149932,"lon":5.7288336753845215},{"lat":45.086716163166585,"lon":5.7331037521362305},{"lat":45.085867763349604,"lon":5.73486328125},{"lat":45.084792095466476,"lon":5.736300945281982},{"lat":45.08383003731399,"lon":5.73810338973999},{"lat":45.083443694441364,"lon":5.739154815673828},{"lat":45.083140678595406,"lon":5.740656852722168},{"lat":45.083034622669636,"lon":5.742330551147461},{"lat":45.08327703592497,"lon":5.744776725769043}]},{"text":"","title":"","link":"","strokeColor":"#0000FF","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.106437908612236,"lon":5.685467720031738},{"lat":45.10710426944554,"lon":5.684480667114258},{"lat":45.107891776765086,"lon":5.68368673324585},{"lat":45.108876145636046,"lon":5.682978630065918},{"lat":45.110133084285096,"lon":5.682463645935059},{"lat":45.11126884841433,"lon":5.682334899902344},{"lat":45.11249544828822,"lon":5.682528018951416},{"lat":45.11361602266071,"lon":5.682871341705322},{"lat":45.11547855030252,"lon":5.683901309967041},{"lat":45.1196728005252,"lon":5.686690807342529},{"lat":45.122988614064624,"lon":5.688879489898682},{"lat":45.12495681405869,"lon":5.689973831176758},{"lat":45.12636479238995,"lon":5.690703392028809},{"lat":45.1272580079383,"lon":5.691046714782715},{"lat":45.12798468145604,"lon":5.691132545471191},{"lat":45.12869620697206,"lon":5.691046714782715},{"lat":45.12954397046704,"lon":5.690832138061523},{"lat":45.13157249440471,"lon":5.690209865570068},{"lat":45.13242021514838,"lon":5.690102577209473},{"lat":45.133161960462886,"lon":5.690124034881592},{"lat":45.13425185444304,"lon":5.6902313232421875},{"lat":45.13667376649197,"lon":5.690617561340332},{"lat":45.137748457014226,"lon":5.690896511077881},{"lat":45.13933775094213,"lon":5.691518783569336},{"lat":45.14318214544288,"lon":5.693299770355225},{"lat":45.15006810954996,"lon":5.696625709533691},{"lat":45.155061804848444,"lon":5.699028968811035},{"lat":45.15627233175344,"lon":5.699629783630371},{"lat":45.157619012718115,"lon":5.700595378875732},{"lat":45.15837556109539,"lon":5.701110363006592},{"lat":45.158829485300224,"lon":5.701324939727783},{"lat":45.159389320172565,"lon":5.701432228088379},{"lat":45.16050897341547,"lon":5.701496601104736},{"lat":45.16574381690356,"lon":5.701732635498047},{"lat":45.170524351965675,"lon":5.701968669891357},{"lat":45.177800282332285,"lon":5.702269077301025},{"lat":45.18372925117799,"lon":5.702548027038574},{"lat":45.19124544904928,"lon":5.702805519104004},{"lat":45.193937125621616,"lon":5.702869892120361},{"lat":45.19501073637833,"lon":5.702698230743408},{"lat":45.195948239064755,"lon":5.7022905349731445},{"lat":45.19705205307459,"lon":5.701625347137451},{"lat":45.198140725370976,"lon":5.700445175170898},{"lat":45.19913865667837,"lon":5.699050426483154},{"lat":45.20604809480922,"lon":5.6891584396362305},{"lat":45.20695517972941,"lon":5.688107013702393},{"lat":45.207983191819686,"lon":5.68716287612915},{"lat":45.2091774766533,"lon":5.686326026916504},{"lat":45.2110519997467,"lon":5.685381889343262},{"lat":45.212412502009066,"lon":5.6847381591796875},{"lat":45.21360669383998,"lon":5.683751106262207},{"lat":45.21442296243536,"lon":5.682656764984131},{"lat":45.2161461576611,"lon":5.6793951988220215},{"lat":45.21731004068017,"lon":5.677142143249512},{"lat":45.21785418560758,"lon":5.676240921020508}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ED\u00e9viation de Vizille\n\u003C/p\u003E\u003C/div\u003E","title":"D\u00e9viation de Vizille\n","link":"","strokeColor":"#758bc5","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.082504341936975,"lon":5.765891075134277},{"lat":45.07977709662327,"lon":5.7666850090026855},{"lat":45.077110329035136,"lon":5.766856670379639},{"lat":45.075231396620715,"lon":5.766298770904541},{"lat":45.071776424172384,"lon":5.763916969299316},{"lat":45.069700309565455,"lon":5.762608051300049},{"lat":45.06753318979057,"lon":5.762157440185547},{"lat":45.065987361844,"lon":5.7620930671691895},{"lat":45.064297511901,"lon":5.7624900341033936},{"lat":45.06296757244783,"lon":5.763182044029236},{"lat":45.06181948017481,"lon":5.764174461364746},{"lat":45.06072820278109,"lon":5.76556921005249},{"lat":45.05709046103424,"lon":5.7714056968688965}]}],"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\u003ED\u00e9but de la B48 sur l'\u003Ca href=\"/wiki/Autoroute_fran%C3%A7aise_A48\" title=\"Autoroute fran\u00e7aise A48\"\u003EA48\u003C/a\u003E \u00e0 Saint-\u00c9gr\u00e8ve.\n\u003C/p\u003E\u003C/div\u003E","title":"D\u00e9but de la B48 sur l'A48 \u00e0 Saint-\u00c9gr\u00e8ve.\n","link":"","lat":45.21785418560758,"lon":5.676240921020508,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EArriv\u00e9e de partie r\u00e9alis\u00e9e de la B48 sur la \u003Ca href=\"/wiki/Route_nationale_fran%C3%A7aise_75\" title=\"Route nationale fran\u00e7aise 75\"\u003ED1075\u003C/a\u003E \u00e0 Pont-de-Claix.\n\u003C/p\u003E\u003C/div\u003E","title":"Arriv\u00e9e de partie r\u00e9alis\u00e9e de la B48 sur la D1075 \u00e0 Pont-de-Claix.\n","link":"","lat":45.106437908612236,"lon":5.685467720031738,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EArriv\u00e9e de partie non r\u00e9alis\u00e9e de la B48 sur la \u003Ca href=\"/wiki/Route_nationale_fran%C3%A7aise_91\" title=\"Route nationale fran\u00e7aise 91\"\u003ED1091\u003C/a\u003E au Sud-Est de Vizille.\n\u003C/p\u003E\u003C/div\u003E","title":"Arriv\u00e9e de partie non r\u00e9alis\u00e9e de la B48 sur la D1091 au Sud-Est de Vizille.\n","link":"","lat":45.05709046103424,"lon":5.7714056968688965,"icon":""}]}

Légende de la carte ou du tableau
En bleu	Tracé de la B48 absorbé par l'A480 en 1982.
En bleu clair	Déviation de Vizille aménagée sur la D1091 et devant être en très grande partie réutilisé par la B48.
En rouge	Tracé aménagé sur la RN85 selon le projet de 1986 qui remplace le projet de 1979.
En vert	Projet de 1979 consistant en l'aménagement de la RN85 remplaçant le projet de prolongement de la B48.
En bleu ciel	Ancien projet de prolongement de la B48 abandonné en 1979.
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.

Documentation

• Cette série de plans montre l'évolution du projet :

Projet de la B48 en 1970. © G.E.

Projet de la B48 en 1973. © G.E.

Projet de la B48 en 1975. © G.E.

Projet de la B48 en 1979. © G.E.

Projet de la B48 en 1986. © G.E.