Route nationale française 774

Route nationale 774Route Bleue
Borne de limite départementale entre Morbihan et Loire-Atlantique sur la RN774.© IGN
Localisation
Pays	France
Régions	Bretagne, Pays de la Loire
Caractéristiques de 1933 à 1973
Itinéraire	Malestroit - Batz-sur-Mer
Longueur	68,9 km

Présentation

• La route nationale 774, ou RN774, est une ancienne route nationale française qui reliait Malestroit à Batz-sur-Mer.
• D'Herbignac à Guérande, cette route fait partie de la Route Bleue.

Historique

Généralités

• À sa création en 1933, elle est décrite comme la route de Ploërmel au Croisic.
• Le trajet de Ploërmel à Malestroit se faisait alors via la N164. De Batz au Croisic on empruntait la N771.
• Dans le Morbihan, elle est issue d'un court tronçon du chemin de grande communication n° 30, ou Gc30 (56), à la sortie de Malestroit, du chemin de grande communication n° 4, ou Gc4 (56), pour la section comprise entre Tirpen, commune de Malestroit, et Péaule, et du chemin de grande communication n° 1, ou Gc1 (56), pour la section comprise entre Péaule et la limite de la Loire-Inférieure. Dans la Loire-Inférieure, elle est issue du chemin de grande communication n° 9 bis, ou Gc9^Bis (44), pour la section comprise entre la limite du Morbihan et Guérande, et du chemin de grande communication n° 8 bis, ou Gc8^Bis (44), pour la section comprise entre Guérande et Batz-sur-Mer.
• En 1973, elle a été déclassée en D774 dans la Loire-Atlantique (44) et le Morbihan (56), sauf les 3 premiers km au départ de Malestroit qui ont été déclassés en D776 par continuité.

Aménagements

• Suppression du passage à niveau de Malansac : 2005.
• Déviation de Marzan : 1959.
• Déviation d'Herbignac : 1964.
• Déviation de Pompas : 1989.
• Déviation Sud-Est de Guérande : 1991.
• Déviation de Saillé : 1973.
• Déviation et suppression du passage à niveau de Trégaté : 1998.

Autour de la route

• Guérande : cité médiévale et marais salants

Tracé historique

Chargement de la carte...

{"type":"HYBRID","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"mappingservice":"googlemaps3","width":"550px","height":"450px","centre":{"text":"","title":"","link":"","lat":47.544,"lon":-2.421,"icon":""},"title":"","label":"","icon":"","lines":[{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ETrac\u00e9 originel \u00e0 l'Ouest de La Roche-Bernard abandonn\u00e9 en 1960\n\u003C/p\u003E\u003C/div\u003E","title":"Trac\u00e9 originel \u00e0 l'Ouest de La Roche-Bernard abandonn\u00e9 en 1960\n","link":"","strokeColor":"#FCFF07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.543204,"lon":-2.32976},{"lat":47.542939,"lon":-2.329543},{"lat":47.542639,"lon":-2.32843},{"lat":47.542059,"lon":-2.327052},{"lat":47.541882,"lon":-2.326231},{"lat":47.541695,"lon":-2.324388},{"lat":47.541608,"lon":-2.324136},{"lat":47.541259,"lon":-2.323637},{"lat":47.540694,"lon":-2.32339},{"lat":47.535927,"lon":-2.318595},{"lat":47.53534,"lon":-2.31822},{"lat":47.53272,"lon":-2.317467},{"lat":47.532519,"lon":-2.317328},{"lat":47.532354,"lon":-2.317057},{"lat":47.531892,"lon":-2.315495},{"lat":47.531063,"lon":-2.31285},{"lat":47.530784,"lon":-2.312311},{"lat":47.529985,"lon":-2.311627},{"lat":47.529675,"lon":-2.311195},{"lat":47.528403,"lon":-2.308152},{"lat":47.527295,"lon":-2.306234},{"lat":47.526996,"lon":-2.306001},{"lat":47.526603,"lon":-2.305977},{"lat":47.526291,"lon":-2.30617},{"lat":47.525757,"lon":-2.306742}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ETronc commun originel avec la N165 \u00e0 l'Ouest de La Roche-Bernard\n\u003C/p\u003E\u003C/div\u003E","title":"Tronc commun originel avec la N165 \u00e0 l'Ouest de La Roche-Bernard\n","link":"","strokeColor":"#F412F1","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.525757,"lon":-2.306742},{"lat":47.52414,"lon":-2.303139},{"lat":47.52299,"lon":-2.303852}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EMalestroit - La Roche-Bernard\n\u003C/p\u003E\u003C/div\u003E","title":"Malestroit - La Roche-Bernard\n","link":"","strokeColor":"#F30A2B","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.808476,"lon":-2.381295},{"lat":47.80846,"lon":-2.381743},{"lat":47.808626,"lon":-2.382465},{"lat":47.808988,"lon":-2.383197},{"lat":47.808986,"lon":-2.383476},{"lat":47.808783,"lon":-2.384243},{"lat":47.808431,"lon":-2.385126},{"lat":47.808046,"lon":-2.387403},{"lat":47.808584,"lon":-2.396487},{"lat":47.808566,"lon":-2.39697},{"lat":47.808476,"lon":-2.397456},{"lat":47.80818,"lon":-2.39836},{"lat":47.808068,"lon":-2.398977},{"lat":47.808076,"lon":-2.400232},{"lat":47.807998,"lon":-2.400758},{"lat":47.807787,"lon":-2.401165},{"lat":47.807407,"lon":-2.401393},{"lat":47.806451,"lon":-2.401369},{"lat":47.804722,"lon":-2.402084},{"lat":47.804229,"lon":-2.402208},{"lat":47.80256,"lon":-2.402168},{"lat":47.802191,"lon":-2.402319},{"lat":47.801834,"lon":-2.402785},{"lat":47.799765,"lon":-2.406346},{"lat":47.799627,"lon":-2.406426},{"lat":47.795054,"lon":-2.405858},{"lat":47.794323,"lon":-2.40547},{"lat":47.79397,"lon":-2.405395},{"lat":47.792958,"lon":-2.405588},{"lat":47.792439,"lon":-2.405599},{"lat":47.791913,"lon":-2.405513},{"lat":47.791758,"lon":-2.405559},{"lat":47.791612,"lon":-2.405679},{"lat":47.791219,"lon":-2.406452},{"lat":47.79093,"lon":-2.406717},{"lat":47.790561,"lon":-2.406704},{"lat":47.790278,"lon":-2.406283},{"lat":47.789824,"lon":-2.404861},{"lat":47.789676,"lon":-2.404545},{"lat":47.779507,"lon":-2.391685},{"lat":47.771339,"lon":-2.381269},{"lat":47.770955,"lon":-2.380378},{"lat":47.770791,"lon":-2.380177},{"lat":47.769504,"lon":-2.379093},{"lat":47.768379,"lon":-2.378604},{"lat":47.768102,"lon":-2.378588},{"lat":47.767092,"lon":-2.378913},{"lat":47.766827,"lon":-2.378886},{"lat":47.765716,"lon":-2.378232},{"lat":47.764415,"lon":-2.378113},{"lat":47.763785,"lon":-2.378207},{"lat":47.762801,"lon":-2.378586},{"lat":47.762521,"lon":-2.378607},{"lat":47.762245,"lon":-2.378524},{"lat":47.761622,"lon":-2.377848},{"lat":47.760379,"lon":-2.376815},{"lat":47.759076,"lon":-2.375995},{"lat":47.758652,"lon":-2.375439},{"lat":47.758365,"lon":-2.375238},{"lat":47.7578,"lon":-2.375111},{"lat":47.756862,"lon":-2.374629},{"lat":47.756508,"lon":-2.374125},{"lat":47.756159,"lon":-2.372655},{"lat":47.755866,"lon":-2.372076},{"lat":47.75393,"lon":-2.370481},{"lat":47.729403,"lon":-2.34687},{"lat":47.729168,"lon":-2.346714},{"lat":47.727516,"lon":-2.346006},{"lat":47.726918,"lon":-2.345059},{"lat":47.726079,"lon":-2.344204},{"lat":47.72521,"lon":-2.342621},{"lat":47.724903,"lon":-2.342364},{"lat":47.724039,"lon":-2.342551},{"lat":47.723723,"lon":-2.342439},{"lat":47.722447,"lon":-2.341328},{"lat":47.722186,"lon":-2.341379},{"lat":47.721634,"lon":-2.341728},{"lat":47.72104,"lon":-2.341755},{"lat":47.719512,"lon":-2.341037},{"lat":47.719362,"lon":-2.340755},{"lat":47.719288,"lon":-2.339779},{"lat":47.719007,"lon":-2.339379},{"lat":47.718632,"lon":-2.339299},{"lat":47.717456,"lon":-2.339877},{"lat":47.716794,"lon":-2.339778},{"lat":47.716438,"lon":-2.339585},{"lat":47.71545,"lon":-2.338735},{"lat":47.711151,"lon":-2.336889},{"lat":47.708682,"lon":-2.337715},{"lat":47.708171,"lon":-2.337621},{"lat":47.705944,"lon":-2.335879},{"lat":47.70537,"lon":-2.33593},{"lat":47.703057,"lon":-2.337624},{"lat":47.70173,"lon":-2.337562},{"lat":47.7013,"lon":-2.3376},{"lat":47.70103,"lon":-2.337382},{"lat":47.700634,"lon":-2.33716},{"lat":47.700328,"lon":-2.336748},{"lat":47.699843,"lon":-2.335625},{"lat":47.699471,"lon":-2.335083},{"lat":47.699313,"lon":-2.334995},{"lat":47.699172,"lon":-2.335137},{"lat":47.699334,"lon":-2.336215},{"lat":47.699477,"lon":-2.336655},{"lat":47.699477,"lon":-2.337168},{"lat":47.699161,"lon":-2.337873},{"lat":47.699083,"lon":-2.338546},{"lat":47.6987,"lon":-2.3403},{"lat":47.698377,"lon":-2.34085},{"lat":47.698153,"lon":-2.342009},{"lat":47.69776,"lon":-2.343283},{"lat":47.697291,"lon":-2.345727},{"lat":47.69713,"lon":-2.346068},{"lat":47.696908,"lon":-2.346237},{"lat":47.69653,"lon":-2.346237},{"lat":47.696083,"lon":-2.34606},{"lat":47.695843,"lon":-2.346068},{"lat":47.695462,"lon":-2.346403},{"lat":47.695245,"lon":-2.346424},{"lat":47.694698,"lon":-2.346172},{"lat":47.694425,"lon":-2.346322},{"lat":47.693692,"lon":-2.347417},{"lat":47.693526,"lon":-2.348063},{"lat":47.693295,"lon":-2.348238},{"lat":47.692943,"lon":-2.34823},{"lat":47.692405,"lon":-2.34783},{"lat":47.691907,"lon":-2.346915},{"lat":47.691549,"lon":-2.3465},{"lat":47.691446,"lon":-2.345732},{"lat":47.69128,"lon":-2.34503},{"lat":47.691244,"lon":-2.344128},{"lat":47.691288,"lon":-2.343174},{"lat":47.691232,"lon":-2.342884},{"lat":47.690885,"lon":-2.342146},{"lat":47.690434,"lon":-2.340864},{"lat":47.690045,"lon":-2.340363},{"lat":47.689825,"lon":-2.339746},{"lat":47.689657,"lon":-2.339528},{"lat":47.688647,"lon":-2.33888},{"lat":47.688314,"lon":-2.33874},{"lat":47.687816,"lon":-2.3383},{"lat":47.687448,"lon":-2.338231},{"lat":47.687172,"lon":-2.338453},{"lat":47.686718,"lon":-2.339864},{"lat":47.686496,"lon":-2.340286},{"lat":47.684214,"lon":-2.343039},{"lat":47.683745,"lon":-2.343511},{"lat":47.680552,"lon":-2.346354},{"lat":47.674427,"lon":-2.351568},{"lat":47.673968,"lon":-2.352034},{"lat":47.673445,"lon":-2.352907},{"lat":47.673226,"lon":-2.353017},{"lat":47.672737,"lon":-2.352983},{"lat":47.667176,"lon":-2.357676},{"lat":47.666498,"lon":-2.358172},{"lat":47.665579,"lon":-2.358663},{"lat":47.664627,"lon":-2.358934},{"lat":47.66085,"lon":-2.359004},{"lat":47.660274,"lon":-2.35891},{"lat":47.659582,"lon":-2.358977},{"lat":47.658908,"lon":-2.358816},{"lat":47.658612,"lon":-2.358843},{"lat":47.657577,"lon":-2.359519},{"lat":47.657264,"lon":-2.359559},{"lat":47.656944,"lon":-2.359476},{"lat":47.656391,"lon":-2.359031},{"lat":47.656149,"lon":-2.359036},{"lat":47.655323,"lon":-2.359413},{"lat":47.653862,"lon":-2.360344},{"lat":47.653392,"lon":-2.360462},{"lat":47.65287,"lon":-2.360349},{"lat":47.65253,"lon":-2.360113},{"lat":47.652418,"lon":-2.359764},{"lat":47.652479,"lon":-2.35845},{"lat":47.652322,"lon":-2.357095},{"lat":47.652183,"lon":-2.356763},{"lat":47.6518,"lon":-2.356465},{"lat":47.649807,"lon":-2.356071},{"lat":47.649247,"lon":-2.356192},{"lat":47.642331,"lon":-2.36029},{"lat":47.641818,"lon":-2.360451},{"lat":47.641471,"lon":-2.360419},{"lat":47.64045,"lon":-2.359874},{"lat":47.64016,"lon":-2.359609},{"lat":47.638737,"lon":-2.357363},{"lat":47.637109,"lon":-2.355598},{"lat":47.636839,"lon":-2.355091},{"lat":47.636623,"lon":-2.354823},{"lat":47.636516,"lon":-2.354592},{"lat":47.636473,"lon":-2.354335},{"lat":47.636301,"lon":-2.354112},{"lat":47.635732,"lon":-2.35406},{"lat":47.634542,"lon":-2.354354},{"lat":47.632799,"lon":-2.354435},{"lat":47.631223,"lon":-2.353855},{"lat":47.630702,"lon":-2.353818},{"lat":47.630325,"lon":-2.353925},{"lat":47.629734,"lon":-2.354542},{"lat":47.629493,"lon":-2.354478},{"lat":47.629374,"lon":-2.35411},{"lat":47.629488,"lon":-2.352957},{"lat":47.629401,"lon":-2.352584},{"lat":47.628982,"lon":-2.352224},{"lat":47.628752,"lon":-2.351664},{"lat":47.628541,"lon":-2.350422},{"lat":47.628315,"lon":-2.350162},{"lat":47.627986,"lon":-2.350175},{"lat":47.627789,"lon":-2.350462},{"lat":47.62746,"lon":-2.352393},{"lat":47.62723,"lon":-2.35345},{"lat":47.627163,"lon":-2.354271},{"lat":47.626885,"lon":-2.354942},{"lat":47.626771,"lon":-2.355819},{"lat":47.626501,"lon":-2.35632},{"lat":47.626127,"lon":-2.356602},{"lat":47.624712,"lon":-2.357012},{"lat":47.622994,"lon":-2.358759},{"lat":47.619896,"lon":-2.360768},{"lat":47.619586,"lon":-2.360902},{"lat":47.618523,"lon":-2.360966},{"lat":47.617175,"lon":-2.361173},{"lat":47.616759,"lon":-2.361111},{"lat":47.612798,"lon":-2.358761},{"lat":47.611874,"lon":-2.358535},{"lat":47.611525,"lon":-2.358707},{"lat":47.61108,"lon":-2.359498},{"lat":47.6108,"lon":-2.359665},{"lat":47.609751,"lon":-2.359214},{"lat":47.60651,"lon":-2.359378},{"lat":47.606132,"lon":-2.359313},{"lat":47.605145,"lon":-2.358753},{"lat":47.604894,"lon":-2.358716},{"lat":47.604678,"lon":-2.358793},{"lat":47.603816,"lon":-2.359557},{"lat":47.603349,"lon":-2.360204},{"lat":47.603011,"lon":-2.360247},{"lat":47.601935,"lon":-2.359493},{"lat":47.601703,"lon":-2.359107},{"lat":47.60137,"lon":-2.358243},{"lat":47.600784,"lon":-2.356103},{"lat":47.600415,"lon":-2.354797},{"lat":47.600041,"lon":-2.354008},{"lat":47.599771,"lon":-2.353847},{"lat":47.599095,"lon":-2.353952},{"lat":47.598818,"lon":-2.353885},{"lat":47.597751,"lon":-2.35323},{"lat":47.597505,"lon":-2.353158},{"lat":47.595833,"lon":-2.353259},{"lat":47.595446,"lon":-2.353181},{"lat":47.594456,"lon":-2.35271},{"lat":47.592772,"lon":-2.352323},{"lat":47.589405,"lon":-2.351912},{"lat":47.589233,"lon":-2.351985},{"lat":47.588763,"lon":-2.352391},{"lat":47.588512,"lon":-2.352815},{"lat":47.5876,"lon":-2.353601},{"lat":47.586169,"lon":-2.355068},{"lat":47.58548,"lon":-2.355535},{"lat":47.583913,"lon":-2.35594},{"lat":47.583097,"lon":-2.356329},{"lat":47.582437,"lon":-2.356544},{"lat":47.581937,"lon":-2.356601},{"lat":47.581576,"lon":-2.356713},{"lat":47.580874,"lon":-2.356511},{"lat":47.580574,"lon":-2.356163},{"lat":47.580264,"lon":-2.356093},{"lat":47.57907,"lon":-2.356766},{"lat":47.578565,"lon":-2.356895},{"lat":47.57714,"lon":-2.357048},{"lat":47.575256,"lon":-2.357647},{"lat":47.574746,"lon":-2.357752},{"lat":47.573541,"lon":-2.357832},{"lat":47.570569,"lon":-2.356826},{"lat":47.569594,"lon":-2.356191},{"lat":47.569266,"lon":-2.356032},{"lat":47.564268,"lon":-2.355318},{"lat":47.564038,"lon":-2.355162},{"lat":47.563896,"lon":-2.354856},{"lat":47.563501,"lon":-2.353164},{"lat":47.561868,"lon":-2.350208},{"lat":47.561177,"lon":-2.349387},{"lat":47.560478,"lon":-2.348926},{"lat":47.559942,"lon":-2.348797},{"lat":47.558977,"lon":-2.348794},{"lat":47.558802,"lon":-2.348676},{"lat":47.558662,"lon":-2.348419},{"lat":47.558447,"lon":-2.347606},{"lat":47.558212,"lon":-2.34718},{"lat":47.557191,"lon":-2.346051},{"lat":47.556919,"lon":-2.345592},{"lat":47.555428,"lon":-2.340073},{"lat":47.555173,"lon":-2.338713},{"lat":47.555005,"lon":-2.338314},{"lat":47.554512,"lon":-2.337592},{"lat":47.554391,"lon":-2.337037},{"lat":47.554261,"lon":-2.336857},{"lat":47.552365,"lon":-2.336109},{"lat":47.552173,"lon":-2.335875},{"lat":47.551902,"lon":-2.335159},{"lat":47.551639,"lon":-2.334982},{"lat":47.550922,"lon":-2.334867},{"lat":47.550205,"lon":-2.335089},{"lat":47.549812,"lon":-2.335119},{"lat":47.548997,"lon":-2.334853},{"lat":47.548447,"lon":-2.334848},{"lat":47.54811,"lon":-2.334494},{"lat":47.54785,"lon":-2.33399},{"lat":47.547556,"lon":-2.332614},{"lat":47.547364,"lon":-2.332405},{"lat":47.546532,"lon":-2.332246},{"lat":47.546291,"lon":-2.332088},{"lat":47.5455,"lon":-2.330728},{"lat":47.544591,"lon":-2.329851},{"lat":47.544182,"lon":-2.329733},{"lat":47.543204,"lon":-2.32976},{"lat":47.542776,"lon":-2.329636},{"lat":47.532239,"lon":-2.32528},{"lat":47.530568,"lon":-2.324348},{"lat":47.52835,"lon":-2.323003}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ETronc commun avec la N165 \u00e0 partir de 1960\n\u003C/p\u003E\u003C/div\u003E","title":"Tronc commun avec la N165 \u00e0 partir de 1960\n","link":"","strokeColor":"#F412F1","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.52835,"lon":-2.323003},{"lat":47.527664,"lon":-2.31986},{"lat":47.526143,"lon":-2.309109},{"lat":47.525882,"lon":-2.308294},{"lat":47.523281,"lon":-2.302522},{"lat":47.522484,"lon":-2.30117}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ERaccordement entre l'ancien trac\u00e9 et le nouveau \u00e0 La Roche-Bernard\n\u003C/p\u003E\u003C/div\u003E","title":"Raccordement entre l'ancien trac\u00e9 et le nouveau \u00e0 La Roche-Bernard\n","link":"","strokeColor":"#F30A2B","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.522484,"lon":-2.30117},{"lat":47.522786,"lon":-2.300834},{"lat":47.523876,"lon":-2.300925},{"lat":47.524332,"lon":-2.301279},{"lat":47.524474,"lon":-2.302025},{"lat":47.524111,"lon":-2.302797},{"lat":47.52299,"lon":-2.303852}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ETron\u00e7on repris sur l'ancien trac\u00e9 de la N165 en 1960\n\u003C/p\u003E\u003C/div\u003E","title":"Tron\u00e7on repris sur l'ancien trac\u00e9 de la N165 en 1960\n","link":"","strokeColor":"#1EFB07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.52299,"lon":-2.303852},{"lat":47.522035,"lon":-2.304131},{"lat":47.521339,"lon":-2.303938},{"lat":47.520658,"lon":-2.302823},{"lat":47.520202,"lon":-2.301449},{"lat":47.519995,"lon":-2.301202},{"lat":47.519282,"lon":-2.300773}]},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ELa Roche-Bernard - Batz-sur-Mer\n\u003C/p\u003E\u003C/div\u003E","title":"La Roche-Bernard - Batz-sur-Mer\n","link":"","strokeColor":"#FF0000","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":47.519282,"lon":-2.300773},{"lat":47.519139,"lon":-2.301258},{"lat":47.518779,"lon":-2.302235},{"lat":47.518763,"lon":-2.302419},{"lat":47.518655,"lon":-2.302652},{"lat":47.51855,"lon":-2.302686},{"lat":47.518559,"lon":-2.3030985},{"lat":47.51852,"lon":-2.304208},{"lat":47.518459,"lon":-2.304711},{"lat":47.518426,"lon":-2.305265},{"lat":47.518355,"lon":-2.305356},{"lat":47.518257,"lon":-2.305316},{"lat":47.517955,"lon":-2.303886},{"lat":47.517919,"lon":-2.30335},{"lat":47.517781,"lon":-2.302889},{"lat":47.517736,"lon":-2.302285},{"lat":47.517631,"lon":-2.302049},{"lat":47.51746,"lon":-2.301899},{"lat":47.516783,"lon":-2.301942},{"lat":47.516598,"lon":-2.30203},{"lat":47.516015,"lon":-2.302776},{"lat":47.515711,"lon":-2.302902},{"lat":47.515415,"lon":-2.302953},{"lat":47.515094,"lon":-2.302903},{"lat":47.513933,"lon":-2.302359},{"lat":47.513241,"lon":-2.302257},{"lat":47.512996,"lon":-2.302292},{"lat":47.511987,"lon":-2.302804},{"lat":47.51127,"lon":-2.302837},{"lat":47.501314,"lon":-2.299215},{"lat":47.49725,"lon":-2.298428},{"lat":47.495572,"lon":-2.298026},{"lat":47.492431,"lon":-2.297585},{"lat":47.490562,"lon":-2.297469},{"lat":47.487625,"lon":-2.297118},{"lat":47.48706,"lon":-2.297211},{"lat":47.486393,"lon":-2.297481},{"lat":47.48529,"lon":-2.298216},{"lat":47.484558,"lon":-2.298779},{"lat":47.483028,"lon":-2.299482},{"lat":47.481665,"lon":-2.300271},{"lat":47.480123,"lon":-2.300652},{"lat":47.478814,"lon":-2.301178},{"lat":47.476757,"lon":-2.302156},{"lat":47.476063,"lon":-2.302649},{"lat":47.474742,"lon":-2.303775},{"lat":47.47298,"lon":-2.305352},{"lat":47.470222,"lon":-2.307434},{"lat":47.469415,"lon":-2.308504},{"lat":47.468979,"lon":-2.308787},{"lat":47.468154,"lon":-2.308983},{"lat":47.46663,"lon":-2.310118},{"lat":47.46592,"lon":-2.310456},{"lat":47.462308,"lon":-2.311523},{"lat":47.460683,"lon":-2.312119},{"lat":47.457136,"lon":-2.313819},{"lat":47.456788,"lon":-2.314077},{"lat":47.455951,"lon":-2.314971},{"lat":47.455361,"lon":-2.315415},{"lat":47.453032,"lon":-2.316675},{"lat":47.452462,"lon":-2.316866},{"lat":47.451218,"lon":-2.316938},{"lat":47.451017,"lon":-2.316959},{"lat":47.450052,"lon":-2.317381},{"lat":47.44952,"lon":-2.317426},{"lat":47.448832,"lon":-2.317985},{"lat":47.448058,"lon":-2.318727},{"lat":47.447386,"lon":-2.319194},{"lat":47.446452,"lon":-2.320192},{"lat":47.444684,"lon":-2.322689},{"lat":47.44414,"lon":-2.323604},{"lat":47.443327,"lon":-2.323411},{"lat":47.441848,"lon":-2.323484},{"lat":47.436274,"lon":-2.325648},{"lat":47.435761,"lon":-2.325981},{"lat":47.431297,"lon":-2.330367},{"lat":47.429139,"lon":-2.332781},{"lat":47.424359,"lon":-2.338653},{"lat":47.424058,"lon":-2.338959},{"lat":47.420743,"lon":-2.341912},{"lat":47.418323,"lon":-2.344672},{"lat":47.411658,"lon":-2.351099},{"lat":47.411108,"lon":-2.351813},{"lat":47.410297,"lon":-2.353342},{"lat":47.410017,"lon":-2.353685},{"lat":47.409655,"lon":-2.353965},{"lat":47.408671,"lon":-2.35455},{"lat":47.407884,"lon":-2.354865},{"lat":47.406859,"lon":-2.355103},{"lat":47.406352,"lon":-2.355516},{"lat":47.405753,"lon":-2.356173},{"lat":47.404767,"lon":-2.35669},{"lat":47.402339,"lon":-2.357526},{"lat":47.400442,"lon":-2.358618},{"lat":47.399377,"lon":-2.35978},{"lat":47.397985,"lon":-2.361451},{"lat":47.395173,"lon":-2.365917},{"lat":47.394267,"lon":-2.367205},{"lat":47.38781,"lon":-2.375758},{"lat":47.382999,"lon":-2.382415},{"lat":47.382548,"lon":-2.383126},{"lat":47.378445,"lon":-2.391357},{"lat":47.374079,"lon":-2.400602},{"lat":47.37068,"lon":-2.408026},{"lat":47.369305,"lon":-2.411047},{"lat":47.369107,"lon":-2.41139},{"lat":47.368837,"lon":-2.41161},{"lat":47.366515,"lon":-2.412678},{"lat":47.36534,"lon":-2.412828},{"lat":47.364933,"lon":-2.412635},{"lat":47.364359,"lon":-2.41234},{"lat":47.363189,"lon":-2.41227},{"lat":47.361916,"lon":-2.412812},{"lat":47.360763,"lon":-2.413287},{"lat":47.359785,"lon":-2.413888},{"lat":47.355436,"lon":-2.417538},{"lat":47.353576,"lon":-2.418843},{"lat":47.352654,"lon":-2.420018},{"lat":47.351235,"lon":-2.422696},{"lat":47.351068,"lon":-2.422937},{"lat":47.349207,"lon":-2.424959},{"lat":47.348403,"lon":-2.425539},{"lat":47.346126,"lon":-2.426785},{"lat":47.337896,"lon":-2.428242},{"lat":47.335344,"lon":-2.428517},{"lat":47.332744,"lon":-2.428765},{"lat":47.33194,"lon":-2.428908},{"lat":47.331777,"lon":-2.428833},{"lat":47.328917,"lon":-2.42606},{"lat":47.327917,"lon":-2.426259},{"lat":47.327318,"lon":-2.426698},{"lat":47.326787,"lon":-2.427385},{"lat":47.326488,"lon":-2.428061},{"lat":47.326216,"lon":-2.429337},{"lat":47.325489,"lon":-2.429427},{"lat":47.324856,"lon":-2.429348},{"lat":47.323944,"lon":-2.428965},{"lat":47.323318,"lon":-2.428981},{"lat":47.322197,"lon":-2.42857},{"lat":47.320409,"lon":-2.42828},{"lat":47.320066,"lon":-2.428422},{"lat":47.318852,"lon":-2.429907},{"lat":47.318601,"lon":-2.430065},{"lat":47.31831,"lon":-2.430092},{"lat":47.315337,"lon":-2.42895},{"lat":47.314901,"lon":-2.428874},{"lat":47.297937,"lon":-2.431858},{"lat":47.296146,"lon":-2.432378},{"lat":47.295693,"lon":-2.432649},{"lat":47.293476,"lon":-2.436628},{"lat":47.293311,"lon":-2.436786},{"lat":47.292364,"lon":-2.437266},{"lat":47.292218,"lon":-2.437406},{"lat":47.291741,"lon":-2.438018},{"lat":47.290984,"lon":-2.438645},{"lat":47.290702,"lon":-2.43889},{"lat":47.290398,"lon":-2.439453},{"lat":47.28632,"lon":-2.448851},{"lat":47.286087,"lon":-2.449184},{"lat":47.284509,"lon":-2.45115},{"lat":47.28422,"lon":-2.451435},{"lat":47.281985,"lon":-2.453099},{"lat":47.281573,"lon":-2.453632},{"lat":47.281458,"lon":-2.453934},{"lat":47.281313,"lon":-2.454211},{"lat":47.281222,"lon":-2.454552},{"lat":47.280296,"lon":-2.456526},{"lat":47.279248,"lon":-2.459757},{"lat":47.278869,"lon":-2.461851},{"lat":47.278786,"lon":-2.462082}]}],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":9,"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\u003EMalestroit\n\u003C/p\u003E\u003C/div\u003E","title":"Malestroit\n","link":"","lat":47.808476,"lon":-2.381295,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBatz-sur-Mer\n\u003C/p\u003E\u003C/div\u003E","title":"Batz-sur-Mer\n","link":"","lat":47.278786,"lon":-2.462082,"icon":""}]}

Légende de la carte ou du tableau
En rouge	Tracé entre 1933 et 1973.
En jaune	Tracé originel à l'Ouest de La Roche-Bernard abandonné en 1960 après la mise en service du nouveau pont sur la Vilaine.
En vert	Ancien tronc commun avec la RN165 à La Roche-Bernard, repris par la N774 en 1960.
En violet	Tronc commun avec la RN165 à La Roche-Bernard.
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.

• Morbihan (56) - D776
  • Malestroit (Malastred) Église Saint-Gilles XI^e, Centre Ancien
    • D10 D764 D776 Malestroit Centre
    • Barenton  
    • Brocéliande
    • Résidence des Pins
    •  ZI de Tirpen  
    • Tirpen D776
• Morbihan (56) - D774
  • Pleucadeuc Calvaire XVI^e, Chapelles
    • Grand Fo
    • Le Quillian
    • Lanria
    • La Grassais
    • La Villa des Roses
    • Le Calvaire
    • Pleucadeuc Village D112
    • La Bourlaie  
    • Maltête
    • La Taille Magnin
  • Pluherlin
    • D112
    • La Pierre Longue Menhir
    • La Prince Coquette
    • Le Pont-d'Arz L'Arz D777
    •  
  • Rochefort-en-Terre (Roc'h-an-Argoed) Château, Cité, Collégiale XII^e, Musée
    • Saint-Nicolas Ruisseau de Saint-Gentien D777^A
    •  Rochefort-en-Terre D21 D777
    • La Vacherie
  • Malansac (Malañseg)
    • Liverzel Ruisseau de Saint-Gentien
    • Le Moulin Neuf Étang du Moulin-Neuf
    • La Ville-ès-Braie
    • Kermeux
    • L'Ardoise  
  • Limerzel
    •  D775
    • Ruisseau-Saint-Clair
    • Croix et Fontaine de Dévotion Saint-Clair
    • La Lande de la Croix
    • L'Île Bodien D153
    • Limerzel Chapelle D153
    • Croix Rialin
    • Ruisseau du Moulin de Prinieux
    • Le Moulin de Bourg Pommier
    • Kerhervy
    • Le Sapin Vert
    • Bodérias
  • Péaule (Pleaol) Vieux Doyenné, Manoirs
    • Moulin de Couéguel
    • Carapibo
    • Kerdilay
    • Le Henlez
    • Péaule Village D1 D20
    • Clamart
    • Kerbiais
    • Le Rosier
  • Marzan Église
    • Beaulieu
    • Ancien Moulin de Craslon Ruisseau de Marzan
• Morbihan (56) - D774^B
  • Marzan
    • Marzan Village (vers    N165   17 )
    • Keristin
    • Penhap
    • Kerjulien
    • D765
  • La Vilaine
• Morbihan (56) - D774
  • La Roche-Bernard (ar Roc'h-Bernez) Vieux Quartier D34 D34^E D765
  • Férel
    • La Grée
    •   D34 D574
• Loire-Atlantique (44) - D774
  •  Parc naturel régional de Brière
  • Herbignac Château
    • Languihen
    • La Ville en Bois
    • Brézanvé
    • Bilon
    • Duret D2
    • Kergas du Bourg
    • Ker Anna  
    • Herbignac Centre D33 D47 dévié par l'est
    •  
    • La Gassun
    • La Ville-Camille
    • La Briquerie
• Loire-Atlantique (44) - D83
  • Herbignac
    • Le Poteau Sarre
    • Pompas D83
• Loire-Atlantique (44) - D774
  • • Herbignac
    • Maison-Neuve D52
    • Kermoureau
    • La Pointe
  • Guérande La Grande Noë
  • Saint-Molf
    • La Champagne
    • La Butte
  • Guérande
    • Kerlouis
    • Kerdando
    • Moulin de Crémeur
    •  
• Loire-Atlantique (44) - D1774
  • Guérande Cité Médiévale, Collégiale
    • Guérande Centre D51 D92 D99 D99^E D213 D774^A
    • Kerjeanne
    • Bout de la Rue
    •  
  • Guérande Cité Médiévale, Collégiale
  • Guérande
    • Corps de Garde
    • Menhir
    • Saillé Marais Salants D45 D92 déviée par l'ouest
    • Lénifen  
  • Batz-sur-Mer
    • Trégaté
    • Kervalet D245 (ex-N771 puis N171)