{"id":163645,"date":"2026-08-27T11:00:00","date_gmt":"2026-08-27T09:00:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=163645"},"modified":"2026-08-27T10:18:04","modified_gmt":"2026-08-27T08:18:04","slug":"limmatrevitalisierung-stolpert-ueber-altlasten","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/limmatrevitalisierung-stolpert-ueber-altlasten\/","title":{"rendered":"La revitalisation de la Limmat se heurte \u00e0 des sites contamin\u00e9s"},"content":{"rendered":"<p class=\"wp-block-paragraph\">La mise &agrave; l&rsquo;enqu&ecirc;te publique marque la prochaine &eacute;tape d&eacute;licate de l&rsquo;un des plus grands projets d&rsquo;am&eacute;nagement d&rsquo;espaces verts du canton de Zurich. Apr&egrave;s quatre ans de planification d&eacute;taill&eacute;e, le dossier est mis &agrave; l&rsquo;enqu&ecirc;te publique &agrave; Schlieren, Oberengstringen, Unterengstringen et Zurich jusqu&rsquo;au 28 septembre 2026. Les oppositions seront ensuite examin&eacute;es avant que le Conseil d&rsquo;&Eacute;tat et le Grand Conseil ne se prononcent sur la fixation du projet et le cr&eacute;dit d&rsquo;investissement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il s&rsquo;agit essentiellement de la revitalisation d&rsquo;un tron&ccedil;on de la Limmat de 3,2 kilom&egrave;tres, situ&eacute; entre la limite de la ville de Zurich et le pont routier interurbain pr&egrave;s de Dietikon. C&rsquo;est l&agrave; que doit voir le jour, d&rsquo;ici &agrave; l&rsquo;automne 2033, ce que le canton qualifie de plus importante revitalisation fluviale jamais r&eacute;alis&eacute;e en milieu urbain. Sont pr&eacute;vus des zones naturelles, des zones mixtes et cinq zones de loisirs de proximit&eacute; dans une vall&eacute;e qui a connu une forte densification au cours des derni&egrave;res d&eacute;cennies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Plus d&rsquo;espace, plus de protection, plus de sources de conflit<br><\/strong>Cette intervention vise &agrave; rem&eacute;dier &agrave; plusieurs d&eacute;ficits anciens. La Limmat, qui a &eacute;t&eacute; rectifi&eacute;e, a perdu des habitats ; parall&egrave;lement, la digue de protection contre les crues existante est consid&eacute;r&eacute;e comme n&eacute;cessitant une r&eacute;novation et comme menac&eacute;e en cas d&rsquo;&eacute;v&eacute;nement. C&rsquo;est pourquoi un syst&egrave;me de drainage avec station de pompage sera &eacute;galement mis en place &agrave; Betschenrohr. Cela rev&ecirc;t une importance particuli&egrave;re pour les propri&eacute;taires, les concepteurs et les communes concern&eacute;es, car la revitalisation n&rsquo;est pas seulement une question de politique paysag&egrave;re, mais aussi un am&eacute;nagement hydraulique ayant des cons&eacute;quences directes sur l&rsquo;utilisation, la desserte et les infrastructures de protection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Les sites contamin&eacute;s font grimper la facture<br><\/strong>C&rsquo;est surtout la hausse des co&ucirc;ts qui fait d&eacute;bat. &Agrave; l&rsquo;heure actuelle, le canton pr&eacute;voit environ 95 millions de francs pour la planification et la mise en &oelig;uvre. &Agrave; elle seule, l&rsquo;&eacute;limination s&eacute;par&eacute;e des sols contamin&eacute;s dans le Betschenrohr repr&eacute;sente environ 13 millions de francs. La pr&eacute;sence de polluants constat&eacute;e sur ce site a modifi&eacute; la donne depuis 2024. &Agrave; cela s&rsquo;ajoute un nouveau poste de d&eacute;penses : la station de pompage de drainage. Le projet doit &ecirc;tre financ&eacute; en grande partie par le canton et la Conf&eacute;d&eacute;ration, cette derni&egrave;re devant prendre en charge au moins la moiti&eacute; des co&ucirc;ts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Betschenrohr reste le point n&eacute;vralgique<br><\/strong>Outre les co&ucirc;ts, c&rsquo;est surtout la question des terrains qui suscite des d&eacute;bats. Environ 20 hectares de terrain sont n&eacute;cessaires pour le projet, dont une partie du site des jardins familiaux de Betschenrohr. La ville de Schlieren travaille en parall&egrave;le sur un concept visant &agrave; permettre aux jardiniers concern&eacute;s de poursuivre autant que possible leurs activit&eacute;s de loisirs. Des &eacute;tudes sont en cours pour trouver des terrains suppl&eacute;mentaires sur les terres adjacentes. Le projet pr&eacute;voit &eacute;galement une tour d&rsquo;observation et une s&eacute;paration des voies pi&eacute;tonnes et cyclables.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le calendrier reste long. La proc&eacute;dure d&rsquo;autorisation, qui s&rsquo;&eacute;tendra jusqu&rsquo;&agrave; mi-2028, sera suivie de la planification et de la pr&eacute;paration des travaux ; la phase de construction est pr&eacute;vue de mi-2029 &agrave; mi-2033. C&rsquo;est pr&eacute;cis&eacute;ment pour cette raison que la mise &agrave; l&rsquo;enqu&ecirc;te actuelle est bien plus qu&rsquo;une simple formalit&eacute;. Elle montre &agrave; quel point la revitalisation urbaine devient co&ucirc;teuse, politiquement sensible et gourmande en surface d&egrave;s lors qu&rsquo;il faut r&eacute;soudre simultan&eacute;ment les probl&egrave;mes de protection contre les crues, de sites contamin&eacute;s et de pression li&eacute;e aux loisirs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les plans du projet \u00ab Lebendige Limmat \u00bb sont accessibles au public jusqu&rsquo;au 28 septembre 2026. Ce grand projet zurichois, qui s&rsquo;\u00e9tend sur 3,2 kilom\u00e8tres, vise \u00e0 allier protection contre les crues, biodiversit\u00e9 et loisirs de proximit\u00e9 ; avec un co\u00fbt d&rsquo;environ 95 millions de francs, il s&rsquo;av\u00e8re toutefois nettement plus on\u00e9reux que l&rsquo;avant-projet.<\/p>\n","protected":false},"author":2,"featured_media":163648,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pmpro_default_level":"","inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[22699,22703,56027,739,4957],"tags":[61392,45221,872,3931,7642,2002,61258,43314,2272],"class_list":["post-163645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-mobilite","category-planification-developpement","category-projects","category-region-zurich","tag-betschenrohr","tag-hochwasserschutz-fr","tag-immoinvest-fr","tag-immonews-fr","tag-limmat-fr","tag-news-fr","tag-offentliche-auflage","tag-revitalisierung-fr","tag-schlieren-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":["Ja"],"lead":"Les plans du projet \u00ab Lebendige Limmat \u00bb sont accessibles au public jusqu'au 28 septembre 2026. Ce grand projet zurichois, qui s'\u00e9tend sur 3,2 kilom\u00e8tres, vise \u00e0 allier protection contre les crues, biodiversit\u00e9 et loisirs de proximit\u00e9 ; avec un co\u00fbt d'environ 95 millions de francs, il s'av\u00e8re toutefois nettement plus on\u00e9reux que l'avant-projet.","autor":"","ort":"","bildunterschrift":"","bild_im_grid":false,"gallerie":"","newsim":"3818"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Les plans du projet \u00ab Lebendige Limmat \u00bb sont accessibles au public jusqu&#039;au 28 septembre 2026. 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Ce grand projet zurichois, qui s&#039;\u00e9tend sur 3,2 kilom\u00e8tres, vise \u00e0 allier protection contre les crues, biodiversit\u00e9 et loisirs de proximit\u00e9 ; avec un co\u00fbt d&#039;environ 95 millions de francs, il s&#039;av\u00e8re toutefois nettement plus on\u00e9reux que l&#039;avant-projet.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.immo-invest.ch\/fr\/limmatrevitalisierung-stolpert-ueber-altlasten\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/www.immo-invest.ch\/wp-content\/uploads\/2026\/08\/Limmatrevitalisierung-stolpert-ueber-Altlasten-immo-invest.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/www.immo-invest.ch\/wp-content\/uploads\/2026\/08\/Limmatrevitalisierung-stolpert-ueber-Altlasten-immo-invest.png\" \/>\n\t\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t\t<meta property=\"og:image:height\" content=\"768\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-08-27T09:00:00+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-08-27T08:18:04+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Immoinvest\/100077962920504\/\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@i\" \/>\n\t\t<meta name=\"twitter:title\" content=\"La revitalisation de la Limmat se heurte \u00e0 des sites contamin\u00e9s - immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Les plans du projet \u00ab Lebendige Limmat \u00bb sont accessibles au public jusqu&#039;au 28 septembre 2026. 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