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448 288 448s170.78 0 213.371-11.486c23.497-6.321 42.003-24.171 48.284-47.821 11.412-42.867 11.412-132.305 11.412-132.305s0-89.438-11.412-132.305zm-317.51 213.508V175.185l142.739 81.205-142.739 81.201z"></path></svg></a></div></div><div class="container-app page-projet one-line-header" style="position:relative;overflow-x:hidden;z-index:1;overflow-y:inherit"><div class="projet"><div class="header-projet"><div class="container-images only-on-tablet"><img src="https://api.groupe-keran.com/api/upload/d046ab4a7a142ccea88cbf4293118711.jpeg" alt="Projet : Viaduc de la Mayenne sur la déviation de Château-Gontier (53)"/></div><div class="container-info"><p class="secondary-title hide-on-tablet">projets</p><div class="back-button"><div class="container-arrow backward"><div><div class="arrow small"></div></div></div><p>Voir toutes les références</p></div><div class="titleContainer left"><div class="blackLineAndNumberContainer level-1 black" style="right:calc(100% + 10px);align-items:flex-end"><div class="number-mask"><p style="color:#2c2a29"> </p></div><span class="blackLine" style="background-color:#2c2a29"></span></div><div class="title-mask"><h1 class="title" style="color:#2c2a29;text-align:left">Viaduc de la Mayenne sur la déviation de Château-Gontier (53)</h1></div></div><div class="mobile-download-btn dropdownFile only-on-tablet"><div class="container-download-button"><div class="circular-button"><svg width="12px" height="15px" viewBox="0 0 12 15" version="1.1"><g id="10_mobile_projets_detail1" transform="translate(-358.000000, -376.000000)" fill-rule="nonzero"><g id="télécharger" transform="translate(339.000000, 360.000000)"><g id="Group-6"><path d="M25,27.32 L30.82,21.5 L27.5,21.5 L27.5,16.5 L22.5,16.5 L22.5,21.5 L19.18,21.5 L25,27.32 Z M30.82,30.68 L30.82,29 L19.18,29 L19.18,30.68 L30.82,30.68 Z" id=""></path></g></g></g></svg></div></div></div><div class="details-projet"><ul><li><label>Client(s)</label><p>Conseil Départemental de la Mayenne (CD 53)</p></li><li><label>Intervenant(s)</label><p><span class="contributor">Sce</span><span class="contributor">Ateliers UP+</span></p></li><li><label>Partenaire(s)</label><p><a class="partner">Lavigne et Chéron Architectes</a><a class="partner">APC</a></p></li><li><label>Calendrier</label><p>2015<!-- --> - <!-- -->2019</p></li></ul></div></div><div class="container-images hide-on-tablet"><img src="https://api.groupe-keran.com/api/upload/d046ab4a7a142ccea88cbf4293118711.jpeg" alt="Projet : Viaduc de la Mayenne sur la déviation de Château-Gontier (53)"/><div class="dropdownFile"><div class="button"><span>Télécharger fiche(s)</span></div></div></div></div><div class="content container-more-info large"><div class="more-info"><ul class="more-info"><li><div class="titleContainer"><div class="underline-title"><p class="title" style="color:#2c2a29;text-align:left">Domaine(s)</p></div></div><p>Ouvrages d'art</p></li><li><div class="titleContainer"><div class="underline-title"><p class="title" style="color:#2c2a29;text-align:left">Métier(s)</p></div></div><p>Maîtrise d'œuvre</p></li><li><div class="titleContainer"><div class="underline-title"><p class="title" style="color:#2c2a29;text-align:left">Compétence(s) mobilisée(s)</p></div></div><p>Ouvrage d'art / ingénierie géotechnique / paysage / hydraulique / gestion des ressources environnementales</p></li><li><div class="titleContainer"><div class="underline-title"><p class="title" style="color:#2c2a29;text-align:left">Mission(s)</p></div></div><p>• MAITRISE D'OEUVRE (EP, AVP, PRO, ACT, DET, OPC, AOR) <br/> • Conception paysage (EP, AVP, PRO) <br/> • Etude hydraulique <br/> • Etudes environnementales (corridor écologique)</p></li></ul><div class="grid"><div class="clip-svg"></div></div></div></div><div class="content container-slider"><div class="slider"><div class="pictures"></div><div class="nav"><div class="container-arrow backward" style="cursor:pointer"><div><div class="arrow"></div></div></div><div class="container-arrow forward" style="cursor:pointer"><div><div class="arrow"></div></div></div></div><div class="grid"><div class="clip-svg"></div></div></div></div><div class="content project-paragraph"><div class="titleContainer left"><div class="blackLineAndNumberContainer level-4 black" style="right:calc(100% + 10px);align-items:flex-end"><div class="number-mask"><p style="color:tonic"> </p></div><span class="blackLine" style="background-color:tonic"></span></div><div class="title-mask"><h4 class="title tonic" style="color:inherit;text-align:left">Quand l'ouvrage de franchissement se fait oeuvre d'art</h4></div></div><div class="paragraph">En 2016, le groupement LAVIGNE-CHERON (architecte), Sce (maître d’œuvre) et APC (géotechnicien) a été mandaté pour la réalisation des deux ouvrages de franchissement intégrés au projet de déviation nord de Château-Gontier : un ouvrage de 50 m pour rejoindre les deux rives du Bouillon et <strong>un viaduc de 300 m de long </strong>pour enjamber la Mayenne.<br><br>Véritable parc naturel, la vallée de la Mayenne est un site naturel incontournable pour de multiples activités (pêche, activités nautiques) et le chemin de halage est devenu un lieu de randonnée très apprécié par les cavaliers, les cyclistes et les randonneurs.<br><br>Le groupement a donc choisi de recentrer le viaduc sur sa rivière, en créant un arc qui s’intègre parfaitement à son environnement et qui met en valeur la Mayenne : les perspectives depuis les berges, le chemin de halage et depuis la rivière elle-même en bateau sont grandioses. L'ouvrage de franchissement devient ainsi un atout touristique participant au rayonnement du pays de Château-Gontier.<br><br>Il s'agit de <strong>l'un des rares viaducs en arc</strong> de l'Hexagone dont l’originalité réside dans sa double fonctionnalité : le <strong>tablier principal servira au trafic routier</strong> tandis que, dessous, <strong>l’arche offrira aux piétons la possibilité de traverser </strong>la rivière de berge à berge.<strong> Au sommet de l’arche</strong>, il est même prévu une terrasse aménagée : l’ouvrage deviendra<strong> un belvédère.</strong><br><br>La mission de suivi des travaux a démarré en mars 2018 et l'ouvrage a été livré en 2022.</div></div><div class="content large"><div class="container-key-figures"><div class="key-figures"><div class="keyfigure"><div><p class="number"><span>0</span><span class="unit"> m</span></p></div><div><p class="title">de long</p><p class="text"></p></div></div><div class="keyfigure"><div><p class="number"><span>0</span><span class="unit"> m</span></p></div><div><p class="title">de large</p><p class="text"></p></div></div><div class="keyfigure"><div><p class="number"><span>0</span><span class="unit"> m</span></p></div><div><p class="title">de portée</p><p class="text"></p></div></div><div class="keyfigure"><div><p class="number"><span>0</span><span class="unit"> tonnes</span></p></div><div><p class="title">d'acier</p><p class="text"></p></div></div><div class="keyfigure"><div><p class="number"><span>0</span><span class="unit"> m³ </span></p></div><div><p class="title">de béton</p><p class="text">mis en oeuvre</p></div></div><div class="keyfigure"><div><p class="number"><span>0</span><span class="unit"> m³ </span></p></div><div><p class="title">de remblais</p><p class="text"></p></div></div></div></div></div><div class="content large container-map"><div class="grid"><div class="clip-svg"></div></div></div><div class="content large similar-projects"><div class="titleContainer right"><div 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style="height:100%"><div><svg width="0px" height="0px" viewBox="0 0 0 0"><line x1="0" y1="0" x2="0" y2="0"></line><line x1="0" y1="0" x2="0" y2="0"></line><line x1="0" y1="0" x2="0" y2="0"></line><line x1="0" y1="0" x2="0" y2="0"></line></svg></div></div></div><script id="__NEXT_DATA__" type="application/json">{"props":{"pageProps":{"page":"page-projet","errCode":null,"content":{"_id":"609a546e455b710d8d83481f","updatedAt":"2023-07-20T10:07:25.408Z","createdAt":"2021-05-11T09:54:54.290Z","lang":"fr","company":"5eb2745576b8fc776002c3c6","user":"5f7b0ed0b34f7276e219b763","__v":0,"beneficiary":"","client":"Conseil Départemental de la Mayenne (CD 53)","mission":"• MAITRISE D'OEUVRE (EP, AVP, PRO, ACT, DET, OPC, AOR) \u003cbr/\u003e • Conception paysage (EP, AVP, PRO) \u003cbr/\u003e • Etude hydraulique \u003cbr/\u003e • Etudes environnementales (corridor écologique)","name":"Viaduc de la Mayenne sur la déviation de Château-Gontier (53)","publicationDate":"2021-07-11T09:36:25.000Z","skills":"Ouvrage d'art / ingénierie géotechnique / paysage / hydraulique / gestion des ressources environnementales","text":"En 2016, le groupement\u0026nbsp;LAVIGNE-CHERON\u0026nbsp;(architecte),\u0026nbsp;Sce\u0026nbsp;(maître d’œuvre) et\u0026nbsp;APC\u0026nbsp;(géotechnicien) a été mandaté pour la réalisation des deux ouvrages de franchissement intégrés au projet de déviation nord de Château-Gontier\u0026nbsp;: un\u0026nbsp;ouvrage de 50 m\u0026nbsp;pour rejoindre les deux rives du Bouillon et\u0026nbsp;\u003cstrong\u003eun viaduc de 300 m\u0026nbsp;de long \u003c/strong\u003epour enjamber la Mayenne.\u003cbr\u003e\u003cbr\u003eVéritable parc naturel, la vallée de la Mayenne est un site naturel incontournable pour de multiples activités (pêche,\u0026nbsp;activités nautiques) et le chemin de halage est devenu un lieu de randonnée très apprécié par les cavaliers, les cyclistes et les randonneurs.\u003cbr\u003e\u003cbr\u003eLe 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