Autoroute 84

L'A84 dans le schéma national des autoroutes.

L'Autoroute 84, communément appelée « A84 », est une autoroute liée au département de la Manche.

Elle relie Caen (Calvados) à Rennes (Ille-et-Vilaine), en traversant le sud du département par Guilberville, Villedieu-les-Poêles, Avranches et Saint-James.

Elle porte également le nom d'E401 entre Pontaubault et le périphérique de Caen.

Elle constitue une partie de l'Autoroute des estuaires, qui, à terme, doit relier la Belgique à l'Espagne, en évitant Paris.

L'autoroute A84 est gratuite sur toute sa longueur.

Histoire

Décidée en 1979, elle est mise en service sur la quasi totalité de son parcours le 27 janvier 2003. Seul le contournement est d'Avranches reste à faire.

Le premier coup de pelle est donné en octobre 1995 sous la conduite de Bernard Tricoche, ingénieur de la Direction départementale de l'Équipement (DDE) .

Dates de mise en service des tronçons autoroutiers de la Manche

• 14 mai 1998 : tronçon de 11 km entre Guilberville (sorties 40) et Saint-Martin-des-Besaces (Calvados) (sortie 41)
• 17 février 1999 : tronçon de 6 km entre L'Aumône (fin provisoire) et Guilberville (sortie 40)
• 29 mars 1999 : tronçon de 48 km entre Pontaubault (sortie 34 - N176) et Saint-Aubin-du-Cormier (Ille-et-Vilaine) (sortie 28) est inauguré .
• 30 avril 1999 : tronçon de 10 km entre La Trinité - La Colombe (fins provisoires)
• 1^er octobre 2001 : tronçon de 13 km entre La Colombe et Pont-Farcy (fins provisoires)
• 17 juillet 2002 : tronçon de 6 km entre Pont-Farcy et L'Aumône (fin provisoire)
• 28 janvier 2003 : tronçon de 10 km entre Ponts (sortie 36) et La Trinité (fin provisoire)

Localisation

Chargement de la carte...

{"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"525px","height":"450px","centre":{"text":"","title":"","link":"","lat":48.705463,"lon":-1.054687,"icon":""},"title":"","label":"","icon":"","lines":[{"text":"","title":"","link":"","strokeColor":"#0000ff","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":49.163799,"lon":-0.426209},{"lat":49.163522,"lon":-0.44323},{"lat":49.152521,"lon":-0.499191},{"lat":49.149152,"lon":-0.505714},{"lat":49.144436,"lon":-0.518074},{"lat":49.143089,"lon":-0.53318},{"lat":49.140618,"lon":-0.54348},{"lat":49.133206,"lon":-0.562019},{"lat":49.131184,"lon":-0.566139},{"lat":49.126241,"lon":-0.570602},{"lat":49.121972,"lon":-0.572662},{"lat":49.114332,"lon":-0.586739},{"lat":49.103545,"lon":-0.609055},{"lat":49.097251,"lon":-0.617638},{"lat":49.092305,"lon":-0.630684},{"lat":49.088707,"lon":-0.63549},{"lat":49.083086,"lon":-0.63961},{"lat":49.07634,"lon":-0.6427},{"lat":49.071842,"lon":-0.64785},{"lat":49.069143,"lon":-0.65403},{"lat":49.068018,"lon":-0.663643},{"lat":49.066668,"lon":-0.672569},{"lat":49.065319,"lon":-0.679092},{"lat":49.060145,"lon":-0.695229},{"lat":49.055195,"lon":-0.700722},{"lat":49.05137,"lon":-0.707932},{"lat":49.050245,"lon":-0.714798},{"lat":49.05047,"lon":-0.747414},{"lat":49.04822,"lon":-0.757713},{"lat":49.047995,"lon":-0.777969},{"lat":49.04507,"lon":-0.787239},{"lat":49.033591,"lon":-0.819511},{"lat":49.02999,"lon":-0.826378},{"lat":49.014906,"lon":-0.85041},{"lat":49.014455,"lon":-0.85762},{"lat":49.014455,"lon":-0.87204},{"lat":49.011978,"lon":-0.87925},{"lat":49.010177,"lon":-0.885086},{"lat":49.009051,"lon":-0.897102},{"lat":49.002745,"lon":-0.907402},{"lat":48.999366,"lon":-0.913239},{"lat":48.993059,"lon":-0.920448},{"lat":48.986751,"lon":-0.933151},{"lat":48.983371,"lon":-0.941391},{"lat":48.978414,"lon":-0.952377},{"lat":48.952268,"lon":-1.006622},{"lat":48.948435,"lon":-1.013489},{"lat":48.947534,"lon":-1.024475},{"lat":48.947534,"lon":-1.034775},{"lat":48.946181,"lon":-1.040955},{"lat":48.941671,"lon":-1.047478},{"lat":48.937386,"lon":-1.06842},{"lat":48.934229,"lon":-1.071167},{"lat":48.929718,"lon":-1.0746},{"lat":48.925432,"lon":-1.077347},{"lat":48.904449,"lon":-1.107903},{"lat":48.899484,"lon":-1.113396},{"lat":48.896098,"lon":-1.120262},{"lat":48.894067,"lon":-1.127815},{"lat":48.885263,"lon":-1.141548},{"lat":48.880748,"lon":-1.147728},{"lat":48.859972,"lon":-1.201973},{"lat":48.857713,"lon":-1.218109},{"lat":48.847547,"lon":-1.244545},{"lat":48.84348,"lon":-1.249352},{"lat":48.838961,"lon":-1.249352},{"lat":48.83399,"lon":-1.246605},{"lat":48.829922,"lon":-1.244545},{"lat":48.826305,"lon":-1.245575},{"lat":48.816133,"lon":-1.252441},{"lat":48.797818,"lon":-1.264114},{"lat":48.787414,"lon":-1.265488},{"lat":48.78289,"lon":-1.267548},{"lat":48.774745,"lon":-1.274414},{"lat":48.769767,"lon":-1.277504},{"lat":48.755283,"lon":-1.278534},{"lat":48.749398,"lon":-1.281281},{"lat":48.74555,"lon":-1.28334},{"lat":48.741022,"lon":-1.29158},{"lat":48.736493,"lon":-1.29467},{"lat":48.729021,"lon":-1.298018},{"lat":48.726869,"lon":-1.301794},{"lat":48.723132,"lon":-1.314583},{"lat":48.7173,"lon":-1.31999},{"lat":48.708918,"lon":-1.331406}]},{"text":"","title":"","link":"","strokeColor":"#ff0000","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":48.708918,"lon":-1.331406},{"lat":48.705293,"lon":-1.336985},{"lat":48.699855,"lon":-1.347284},{"lat":48.6947,"lon":-1.352692},{"lat":48.69096,"lon":-1.362991},{"lat":48.689544,"lon":-1.370029},{"lat":48.686428,"lon":-1.374664},{"lat":48.682348,"lon":-1.373978},{"lat":48.67617,"lon":-1.372175},{"lat":48.670843,"lon":-1.372776},{"lat":48.658881,"lon":-1.363678},{"lat":48.65599,"lon":-1.355696},{"lat":48.647881,"lon":-1.348228},{"lat":48.640566,"lon":-1.341705},{"lat":48.632341,"lon":-1.34119}]},{"text":"","title":"","link":"","strokeColor":"#0000ff","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":48.632341,"lon":-1.34119},{"lat":48.618896,"lon":-1.334753},{"lat":48.607944,"lon":-1.334152},{"lat":48.594322,"lon":-1.329346},{"lat":48.579106,"lon":-1.328316},{"lat":48.573654,"lon":-1.330032},{"lat":48.566612,"lon":-1.337242},{"lat":48.556387,"lon":-1.341705},{"lat":48.54866,"lon":-1.342049},{"lat":48.539341,"lon":-1.341362},{"lat":48.533203,"lon":-1.342735},{"lat":48.523654,"lon":-1.346855},{"lat":48.515012,"lon":-1.348915},{"lat":48.50364,"lon":-1.346169},{"lat":48.49454,"lon":-1.342049},{"lat":48.486121,"lon":-1.332779},{"lat":48.477018,"lon":-1.328316},{"lat":48.469052,"lon":-1.327972},{"lat":48.460173,"lon":-1.327972},{"lat":48.446056,"lon":-1.325226},{"lat":48.435351,"lon":-1.321449},{"lat":48.425328,"lon":-1.313896},{"lat":48.418492,"lon":-1.31218},{"lat":48.407554,"lon":-1.31218},{"lat":48.39251,"lon":-1.308403},{"lat":48.38111,"lon":-1.304283},{"lat":48.372444,"lon":-1.303596},{"lat":48.361496,"lon":-1.304626},{"lat":48.355336,"lon":-1.302223},{"lat":48.347351,"lon":-1.298447},{"lat":48.338908,"lon":-1.298103},{"lat":48.33092,"lon":-1.302223},{"lat":48.326126,"lon":-1.307716},{"lat":48.321789,"lon":-1.313896},{"lat":48.319962,"lon":-1.322479},{"lat":48.315624,"lon":-1.336899},{"lat":48.312428,"lon":-1.347198},{"lat":48.306491,"lon":-1.356125},{"lat":48.29964,"lon":-1.362648},{"lat":48.290503,"lon":-1.375694},{"lat":48.283878,"lon":-1.390114},{"lat":48.277252,"lon":-1.398354},{"lat":48.268341,"lon":-1.405563},{"lat":48.261027,"lon":-1.415863},{"lat":48.253027,"lon":-1.424446},{"lat":48.247311,"lon":-1.433372},{"lat":48.238852,"lon":-1.468048},{"lat":48.235193,"lon":-1.479034},{"lat":48.231534,"lon":-1.486588},{"lat":48.22147,"lon":-1.498947},{"lat":48.218268,"lon":-1.50856},{"lat":48.214379,"lon":-1.51783},{"lat":48.205456,"lon":-1.52504},{"lat":48.199278,"lon":-1.530533},{"lat":48.172268,"lon":-1.571045},{"lat":48.167688,"lon":-1.579971},{"lat":48.164711,"lon":-1.588554},{"lat":48.159215,"lon":-1.596107},{"lat":48.155551,"lon":-1.599884},{"lat":48.150426,"lon":-1.607269},{"lat":48.148581,"lon":-1.61252}]}],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":8,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":true,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ED\u00e9but de l'A84 sur le boulevard p\u00e9riph\u00e9rique de Caen \u00e0 Bretteville-sur-Odon (Calvados)\n\u003C/p\u003E\u003C/div\u003E","title":"D\u00e9but de l'A84 sur le boulevard p\u00e9riph\u00e9rique de Caen \u00e0 Bretteville-sur-Odon (Calvados)\n","link":"","lat":49.163799,"lon":-0.426209,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EFin de l'A84 sur le Boulevard P\u00e9riph\u00e9rique de Rennes \u00e0 Cesson-S\u00e9vign\u00e9 (Ille-et-Vilaine)\n\u003C/p\u003E\u003C/div\u003E","title":"Fin de l'A84 sur le Boulevard P\u00e9riph\u00e9rique de Rennes \u00e0 Cesson-S\u00e9vign\u00e9 (Ille-et-Vilaine)\n","link":"","lat":48.148581,"lon":-1.61252,"icon":""},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EAccident impliquant 4 v\u00e9hicules et 4 personnes\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E20/5/2015 \u00e0 17:30\n\u003C/p\u003E\u003C/div\u003E","title":"Accident impliquant 4 v\u00e9hicules et 4 personnes\n","link":"","lat":48.8692,"lon":-1.17576,"icon":""},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EAccident impliquant 2 v\u00e9hicules et 3 personnes\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E21/2/2017 \u00e0 18:48\n\u003C/p\u003E\u003C/div\u003E","title":"Accident impliquant 2 v\u00e9hicules et 3 personnes\n","link":"","lat":48.97787,"lon":-0.95288,"icon":""},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EAccident impliquant 1 v\u00e9hicule et 1 personne\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E25/7/2019 \u00e0 10:00\n\u003C/p\u003E\u003C/div\u003E","title":"Accident impliquant 1 v\u00e9hicule et 1 personne\n","link":"","lat":48.577225,"lon":-1.328598,"icon":""},{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EAccident impliquant 3 v\u00e9hicules et 3 personnes\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E12/8/2021 \u00e0 08:10\n\u003C/p\u003E\u003C/div\u003E","title":"Accident impliquant 3 v\u00e9hicules et 3 personnes\n","link":"","lat":48.93437,"lon":-1.071424,"icon":""}],"imageoverlays":null}

Caractéristiques

• Type : 2 X 2 voies
• Longueur : 170 km
• Coût : 650 millions d'euros (2002)
• 80 ouvrages d'art dont le viaduc du Saultbesnon à Plomb.
• 8 échangeurs sont prévus pour desservir Saint-James, Pontorson, Ducey, Avranches, Mortain, Brécey, Granville, Villedieu-les-Poêles, Coutances, Vire (Calvados), Pont-Farcy, Tessy-sur-Vire, Saint-Lô, Torigni-sur-Vire et Guilberville .

Aires de service

• Aire du Mont-Saint-Michel à Saint-Aubin-de-Terregatte : station-service
• Aire de la Baie à Braffais
• Aire de la vallée de la Vire à Gouvets : station-service

Centres d'entretien

• Centre d'entretien de Poilley
• Centre d'entretien secondaire de Villedieu-les-Poêles

Liaison avec Granville

Le projet de relier l'A84 à Granville par une 4 voies est déclaré d'utilité publique en 2006

Radars fixes

En 2010, l'A84 est équipée de 8 radars fixes, dont 3 sont situés dans la Manche :

• Au Val-Saint-Père - Sens Caen-Rennes
• À Saint-Vigor-des-Monts - Sens Caen-Rennes
• À Plomb PK : 81+500 Viaduc du Saultbesnon - Sens Caen-Rennes

Accidentologie

• Depuis le 1^er janvier 2015, il y a eu 4 accidents mortels sur cet axe routier :
  • PR 196+200 à Beslon, le 20 mai 2015, 4 véhicules impliqués (1 mort, 2 blessés graves, 1 personne indemne)
  • PR 212+700 à Guilberville, le 21 février 2017, 2 véhicules impliqués (2 morts, 1 personne indemne)
  • PR 156+900 à Saint-Senier-de-Beuvron, le 25 juillet 2019, 1 véhicule impliqué (1 mort)
  • PR 209+400 à Gouvets, le 12 août 2021, 3 véhicules impliqués (2 morts, 1 personne indemne)

Liens internes

• Galerie d'images
• Réseau routier de la Manche

Lien externe

• Photos de l'A84 sur France Autoroutes