JETTY TO MONT-SAINT-MICHEL:CONSTRUCTION OF A SEMI-INTEGRAL BRIDGEIN A EXCEPTIONAL SITE

Abstract

A 750m long jetty is being built in the Bay of Mont Saint Michelto link the Wonder to earth. This bridge is part of the vastrestoring operation of the Mont Saint Michel’s maritimecharacter, one of the most visited sites in France. To fulfil all therequirements of the site, the team of Dietmar FeichtingerArchitectes and schlaich bergermann und partner proposed asemi-integral bridge that takes advantage of the concreteproperties for its construction:– deep foundations in which steel columns are built-in, 7m belowthe ground level, without any excavation– a built-in connection between the bridge deck and theabutments– an efficient prefabricating and keying-in system for theconcrete of the bridge deckThe article deals with:– The description of the constraints of the site that have led to theglobal structural concept – The description of the advantages of using concrete for thedesign of this bridge– The illustration of the elements in concrete of the bridge