{"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":"\n<p class=\"wp-block-paragraph\">La mise \u00e0 l&rsquo;enqu\u00eate publique marque la prochaine \u00e9tape d\u00e9licate de l&rsquo;un des plus grands projets d&rsquo;am\u00e9nagement d&rsquo;espaces verts du canton de Zurich. Apr\u00e8s quatre ans de planification d\u00e9taill\u00e9e, le dossier est mis \u00e0 l&rsquo;enqu\u00eate publique \u00e0 Schlieren, Oberengstringen, Unterengstringen et Zurich jusqu&rsquo;au 28 septembre 2026. Les oppositions seront ensuite examin\u00e9es avant que le Conseil d&rsquo;\u00c9tat et le Grand Conseil ne se prononcent sur la fixation du projet et le cr\u00e9dit d&rsquo;investissement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il s\u2019agit essentiellement de la revitalisation d\u2019un tron\u00e7on de la Limmat de 3,2 kilom\u00e8tres, situ\u00e9 entre la limite de la ville de Zurich et le pont routier interurbain pr\u00e8s de Dietikon. C\u2019est l\u00e0 que doit voir le jour, d\u2019ici \u00e0 l\u2019automne 2033, ce que le canton qualifie de plus importante revitalisation fluviale jamais r\u00e9alis\u00e9e en milieu urbain. Sont pr\u00e9vus des zones naturelles, des zones mixtes et cinq zones de loisirs de proximit\u00e9 dans une vall\u00e9e qui a connu une forte densification au cours des derni\u00e8res d\u00e9cennies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Plus d\u2019espace, plus de protection, plus de sources de conflit<br><\/strong>Cette intervention vise \u00e0 rem\u00e9dier \u00e0 plusieurs d\u00e9ficits anciens. La Limmat, qui a \u00e9t\u00e9 rectifi\u00e9e, a perdu des habitats ; parall\u00e8lement, la digue de protection contre les crues existante est consid\u00e9r\u00e9e comme n\u00e9cessitant une r\u00e9novation et comme menac\u00e9e en cas d\u2019\u00e9v\u00e9nement. C\u2019est pourquoi un syst\u00e8me de drainage avec station de pompage sera \u00e9galement mis en place \u00e0 Betschenrohr. Cela rev\u00eat une importance particuli\u00e8re pour les propri\u00e9taires, les concepteurs et les communes concern\u00e9es, car la revitalisation n\u2019est pas seulement une question de politique paysag\u00e8re, mais aussi un am\u00e9nagement hydraulique ayant des cons\u00e9quences directes sur l\u2019utilisation, la desserte et les infrastructures de protection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Les sites contamin\u00e9s font grimper la facture<br><\/strong>C\u2019est surtout la hausse des co\u00fbts qui fait d\u00e9bat. \u00c0 l\u2019heure actuelle, le canton pr\u00e9voit environ 95 millions de francs pour la planification et la mise en \u0153uvre. \u00c0 elle seule, l\u2019\u00e9limination s\u00e9par\u00e9e des sols contamin\u00e9s dans le Betschenrohr repr\u00e9sente environ 13 millions de francs. La pr\u00e9sence de polluants constat\u00e9e sur ce site a modifi\u00e9 la donne depuis 2024. \u00c0 cela s\u2019ajoute un nouveau poste de d\u00e9penses : la station de pompage de drainage. Le projet doit \u00eatre financ\u00e9 en grande partie par le canton et la Conf\u00e9d\u00e9ration, cette derni\u00e8re devant prendre en charge au moins la moiti\u00e9 des co\u00fbts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Betschenrohr reste le point n\u00e9vralgique<br><\/strong>Outre les co\u00fbts, c&rsquo;est surtout la question des terrains qui suscite des d\u00e9bats. Environ 20 hectares de terrain sont n\u00e9cessaires pour le projet, dont une partie du site des jardins familiaux de Betschenrohr. La ville de Schlieren travaille en parall\u00e8le sur un concept visant \u00e0 permettre aux jardiniers concern\u00e9s de poursuivre autant que possible leurs activit\u00e9s de loisirs. Des \u00e9tudes sont en cours pour trouver des terrains suppl\u00e9mentaires sur les terres adjacentes. Le projet pr\u00e9voit \u00e9galement une tour d\u2019observation et une s\u00e9paration des voies pi\u00e9tonnes et cyclables.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le calendrier reste long. La proc\u00e9dure d\u2019autorisation, qui s\u2019\u00e9tendra jusqu\u2019\u00e0 mi-2028, sera suivie de la planification et de la pr\u00e9paration des travaux ; la phase de construction est pr\u00e9vue de mi-2029 \u00e0 mi-2033. C\u2019est pr\u00e9cis\u00e9ment pour cette raison que la mise \u00e0 l\u2019enqu\u00eate actuelle est bien plus qu\u2019une simple formalit\u00e9. Elle montre \u00e0 quel point la revitalisation urbaine devient co\u00fbteuse, politiquement sensible et gourmande en surface d\u00e8s lors qu\u2019il faut r\u00e9soudre simultan\u00e9ment les probl\u00e8mes de protection contre les crues, de sites contamin\u00e9s et de pression li\u00e9e 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":{"_acf_changed":false,"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"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"],"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":"","zusammenfassung":"","bild_im_grid":false,"gallerie":"","newsim":"3818"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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. 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<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"immovestuser\"\/>\n\t<meta name=\"google-site-verification\" content=\"fHJKvgWpZCR2zVBHWfkQeFXC11qieUSff0HGNYfuyLA\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.immo-invest.ch\/fr\/limmatrevitalisierung-stolpert-ueber-altlasten\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"fr_FR\" \/>\n\t\t<meta property=\"og:site_name\" content=\"immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien - Die\u00a0Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og: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 property=\"og:description\" content=\"Les plans du projet \u00ab Lebendige Limmat \u00bb sont accessibles au public jusqu&#039;au 28 septembre 2026. 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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