{"id":3776668,"date":"2021-11-09T06:00:00","date_gmt":"2021-11-09T05:00:00","guid":{"rendered":"https:\/\/blog.tourainegenealogie.org\/?p=3776668"},"modified":"2021-10-21T14:30:26","modified_gmt":"2021-10-21T13:30:26","slug":"les-levees-de-la-loire","status":"publish","type":"post","link":"https:\/\/blog.tourainegenealogie.org\/?p=3776668","title":{"rendered":"H comme Huit si\u00e8cles pour ma\u00eetriser un fleuve&#8230;"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-full is-resized is-style-zoooom\"><img decoding=\"async\" src=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/H_Mariniers.png\" alt=\"\" class=\"wp-image-3654921\" width=\"120\" height=\"182\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-normal-font-size wp-block-paragraph\"><strong><em>Article r\u00e9dig\u00e9 par Daniel FOULLON <\/em><\/strong><br><strong><em>du Centre G\u00e9n\u00e9alogique de Touraine<\/em><\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Depuis que l\u2019homme habite ses rivages, les crues r\u00e9currentes&nbsp;du fleuve sont un souci permanent pour ses riverains.<\/p>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#0c6e88;font-size:24px\"><strong>La vall\u00e9e naturelle<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-justify wp-block-paragraph\">En Touraine et en Anjou apparaissent de place en place des monticules insubmersibles o\u00f9 les habitants se fixaient, d\u00e9nomm\u00e9s \u00ab&nbsp;varennes&nbsp;\u00bb en Touraine ou&nbsp; \u00ab&nbsp;turcies&nbsp;\u00bb en &nbsp;Anjou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ils s\u2019\u00e9chelonnent d\u2019Amboise \u00e0 Saint-Genouph.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A Tours trois buttes t\u00e9moignent de cet ancien relief&nbsp;: l\u2019entourage du Mus\u00e9e des Beaux-Arts actuel, l\u2019\u00e9glise Saint-Julien et le quartier Plumereau.<\/p>\n\n\n\n<div class=\"wp-block-image is-style-zoooom\"><figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"263\" src=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/coupe-rue-nationale-1024x263.png\" alt=\"\" class=\"wp-image-3776713\" srcset=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/coupe-rue-nationale-1024x263.png 1024w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/coupe-rue-nationale-300x77.png 300w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/coupe-rue-nationale-768x198.png 768w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/coupe-rue-nationale-1536x395.png 1536w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/coupe-rue-nationale-2048x527.png 2048w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/coupe-rue-nationale-1320x340.png 1320w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#0c6e88;font-size:24px\"><strong>Les premiers travaux<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-justify wp-block-paragraph\">Les premi\u00e8res lev\u00e9es furent \u00e9difi\u00e9es en Anjou, sur ordre de Henri&nbsp;II Plantagen\u00eat au XII<sup>\u00e8me<\/sup> si\u00e8cle. Les travaux s\u2019\u00e9tal\u00e8rent jusqu\u2019au XIX<sup>\u00e8me<\/sup>. Une charte d&rsquo;Henri&nbsp;II Plantagen\u00eat datant de 1160 est l\u2019attestation la plus ancienne connue de la construction de lev\u00e9es&nbsp;; bien que certains historiens pensent que Louis le Pieux soit le premier \u00e0 avoir eu l\u2019id\u00e9e de construire des protections en 821.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces premiers travaux ne portent pas le nom de lev\u00e9es, elles sont appel\u00e9es turcies du mots latin <em>turgere<\/em> (\u00eatre enfl\u00e9). Ce sont de simples remblais entre deux monticules submerg\u00e9s lors d\u2019importantes crues.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les diff\u00e9rents rois portent int\u00e9r\u00eat aux crues de la Loire&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Charles&nbsp;IX nomme un agent des turcies.<\/li><li>Henri&nbsp;III nomme deux commissaires.<\/li><li>Henri&nbsp;IV nomme un intendant des turcies et lev\u00e9es.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Le XVII<sup>\u00e8me<\/sup> si\u00e8cle est particuli\u00e8rement touch\u00e9 par d\u2019importantes crues&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>1608 en juin et octobre<\/li><li>1615 la plus d\u00e9vastatrice<\/li><li>1615 \u00e0 1633&nbsp;: 10 grandes crues inondent la vall\u00e9e dont celle de 1629 qui restera dans les m\u00e9moires.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En 1629 le Conseil royal de Louis&nbsp;XIII propose de cr\u00e9er des d\u00e9chargeoirs&nbsp;: inondations volontaires de terres non cultiv\u00e9es afin d\u2019\u00e9viter la rupture \u00e0 proximit\u00e9 des villages.<\/p>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#0c6e88;font-size:24px\"> <strong>Les lev\u00e9es modernes<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image caption-align-center is-style-zoooom\"><figure class=\"alignright size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/Levee-dans-sa-conception-initialeLA-CHAPELLE-AUX-NAUX-768x1024.jpg\" alt=\"\" class=\"wp-image-3776781\" width=\"266\" height=\"354\" srcset=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/Levee-dans-sa-conception-initialeLA-CHAPELLE-AUX-NAUX-768x1024.jpg 768w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/Levee-dans-sa-conception-initialeLA-CHAPELLE-AUX-NAUX-225x300.jpg 225w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/Levee-dans-sa-conception-initialeLA-CHAPELLE-AUX-NAUX-1152x1536.jpg 1152w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/Levee-dans-sa-conception-initialeLA-CHAPELLE-AUX-NAUX-1536x2048.jpg 1536w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/Levee-dans-sa-conception-initialeLA-CHAPELLE-AUX-NAUX-1320x1760.jpg 1320w\" sizes=\"(max-width: 266px) 100vw, 266px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">En 1688, Colbert lance un programme de construction de lev\u00e9es insubmersibles. <\/p>\n\n\n\n<p class=\"has-text-align-justify wp-block-paragraph\">Suite aux inondations catastrophiques de 1707, 1710 et 1711, la hauteur des lev\u00e9es est port\u00e9e \u00e0 6,71&nbsp;m\u00e8tres au-dessus de l\u2019\u00e9tiage (soit 22&nbsp;pieds) avec une base \u00e9quivalente \u00e0 6 fois la hauteur&nbsp;: ces nouvelles mesures permettent de contenir le fleuve.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le projet de d\u00e9chargeoirs est abandonn\u00e9 en 1733 par l\u2019ing\u00e9nieur des turcies et lev\u00e9es, Louis&nbsp;de&nbsp;R\u00e8gemortes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les diff\u00e9rents gouvernements de la R\u00e9volution n\u00e9gligent l\u2019entretien des lev\u00e9es&nbsp;:  le service des lev\u00e9es et turcies est dissous en 1790.<\/p>\n\n\n\n<p class=\"has-text-align-justify wp-block-paragraph\">L\u2019int\u00e9r\u00eat pour les lev\u00e9es est suspendu jusqu&rsquo;\u00e0 la crue de 1846&nbsp;: cette crue surprend le Service des Ponts et Chauss\u00e9es qui remplace le Service des lev\u00e9es et turcies dissous.<\/p>\n\n\n\n<div style=\"height:12px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image caption-align-center is-style-zoooom\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/Profils-des-levees-1024x340.png\" alt=\"\" class=\"wp-image-3776913\" width=\"900\" height=\"246\"\/><figcaption><em>Lev\u00e9e \u00e0 La Chapelle-aux-Naux<\/em> <em>dans sa conception initiale<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-justify wp-block-paragraph\">Les ing\u00e9nieurs proposent alors de cartographier le cours du fleuve de Saint-Nazaire \u00e0 Roanne.<br>En raison des 160&nbsp;br\u00e8ches caus\u00e9es par la crue de 1856, l\u2019ing\u00e9nieur Comoy propose de reprendre les suggestions \u00e9mises en 1629&nbsp;: c&rsquo;est la cr\u00e9ation de d\u00e9versoirs ou de lev\u00e9es fusibles qui s\u2019av\u00e8re la moins co\u00fbteuse.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<figure class=\"wp-block-image size-large is-resized caption-align-center is-style-zoooom\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/deversoir-Jargeau-1024x705.jpg\" alt=\"\" class=\"wp-image-3776847\" width=\"520\" height=\"358\" srcset=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/deversoir-Jargeau-1024x705.jpg 1024w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/deversoir-Jargeau-300x207.jpg 300w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/deversoir-Jargeau-768x529.jpg 768w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/deversoir-Jargeau-1536x1058.jpg 1536w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/deversoir-Jargeau-2048x1411.jpg 2048w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/deversoir-Jargeau-1320x909.jpg 1320w\" sizes=\"(max-width: 520px) 100vw, 520px\" \/><figcaption><em>Le d\u00e9versoir Jargeau<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<div class=\"wp-block-image is-style-zoooom\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/levee-fusible-de-VILLANDRY-768x1024.jpg\" alt=\"\" class=\"wp-image-3780482\" srcset=\"https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/levee-fusible-de-VILLANDRY-768x1024.jpg 768w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/levee-fusible-de-VILLANDRY-225x300.jpg 225w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/levee-fusible-de-VILLANDRY-1152x1536.jpg 1152w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/levee-fusible-de-VILLANDRY-1536x2048.jpg 1536w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/levee-fusible-de-VILLANDRY-1320x1760.jpg 1320w, https:\/\/blog.tourainegenealogie.org\/wp-content\/uploads\/2021\/08\/levee-fusible-de-VILLANDRY.jpg 1772w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><figcaption><em>La lev\u00e9e fusible de Villandry<\/em><\/figcaption><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La cause des lev\u00e9es tombe dans l\u2019oubli dans la premi\u00e8re moiti\u00e9 du XX<sup>\u00e8me<\/sup> si\u00e8cle par manque de grandes crues.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans la deuxi\u00e8me moiti\u00e9 du XX<sup>\u00e8me<\/sup>, les ponts et chauss\u00e9es entretiennent les lev\u00e9es par des \u00e9largissements et des renforcements. La construction de barrages \u00e9cr\u00eateurs est entreprise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Huit si\u00e8cles ont \u00e9t\u00e9 n\u00e9cessaires pour ma\u00eetriser un fleuve qui, peut-\u00eatre, nous r\u00e9serve encore des surprises&nbsp;!<\/p>\n\n\n\n<div style=\"width: 100%;\"><div style=\"position: relative; padding-bottom: 19.625%; padding-top: 0; height: 0;\"><figure><iframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/view.genial.ly\/5ca226677299264916869656\" type=\"text\/html\" allowscriptaccess=\"always\" allowfullscreen=\"true\" scrolling=\"yes\" allownetworking=\"all\" width=\"2400px\" height=\"471px\" frameborder=\"0\"><\/iframe><\/figure> <\/div> <\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><em>La Loire \u00e0 Tours vue du coteau de Saint-Cyr, gravure ancienne &#8211; Archives Municipales de Tours<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>Sources&nbsp;: <\/strong><\/em><\/p>\n\n\n\n<ul class=\"is-style-dashed wp-block-list\"><li><em>Roger Dion : Histoire des lev\u00e9es de la Loire<\/em><\/li><li><em>Samuel Guillou et Jean Maurin : Les lev\u00e9es et turcies du plan Loire &#8211; Huit si\u00e8cles d\u2019\u00e9volution<\/em><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Article r\u00e9dig\u00e9 par Daniel FOULLON du Centre G\u00e9n\u00e9alogique de Touraine Depuis que l\u2019homme habite ses rivages, les crues r\u00e9currentes&nbsp;du fleuve sont un souci permanent pour ses riverains. La vall\u00e9e naturelle En Touraine et en Anjou apparaissent de place en place des monticules insubmersibles o\u00f9 les habitants se fixaient, d\u00e9nomm\u00e9s \u00ab&nbsp;varennes&nbsp;\u00bb en Touraine ou&nbsp; \u00ab&nbsp;turcies&nbsp;\u00bb en <a class=\"more-link\" href=\"https:\/\/blog.tourainegenealogie.org\/?p=3776668\">Lire plus &#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":3654921,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[10,76,104],"tags":[],"post_folder":[],"class_list":["post-3776668","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-challengeaz","category-travaux","category-vallee-de-la-loire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>H comme Huit si\u00e8cles pour ma\u00eetriser un fleuve... - Le Blog du Centre G\u00e9n\u00e9alogique de Touraine<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.tourainegenealogie.org\/?p=3776668\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H comme Huit si\u00e8cles pour ma\u00eetriser un fleuve... - Le Blog du Centre G\u00e9n\u00e9alogique de Touraine\" \/>\n<meta property=\"og:description\" content=\"Article r\u00e9dig\u00e9 par Daniel FOULLON du Centre G\u00e9n\u00e9alogique de Touraine Depuis que l\u2019homme habite ses rivages, les crues r\u00e9currentes&nbsp;du fleuve sont un souci permanent pour ses riverains. 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r\u00e9dig\u00e9 par Daniel FOULLON du Centre G\u00e9n\u00e9alogique de Touraine Depuis que l\u2019homme habite ses rivages, les crues r\u00e9currentes&nbsp;du fleuve sont un souci permanent pour ses riverains. La vall\u00e9e naturelle En Touraine et en Anjou apparaissent de place en place des monticules insubmersibles o\u00f9 les habitants se fixaient, d\u00e9nomm\u00e9s \u00ab&nbsp;varennes&nbsp;\u00bb en Touraine ou&nbsp; \u00ab&nbsp;turcies&nbsp;\u00bb en\u2026","_links":{"self":[{"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=\/wp\/v2\/posts\/3776668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3776668"}],"version-history":[{"count":18,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=\/wp\/v2\/posts\/3776668\/revisions"}],"predecessor-version":[{"id":4006076,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=\/wp\/v2\/posts\/3776668\/revisions\/4006076"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=\/wp\/v2\/media\/3654921"}],"wp:attachment":[{"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3776668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3776668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3776668"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/blog.tourainegenealogie.org\/index.php?rest_route=%2Fwp%2Fv2%2Fpost_folder&post=3776668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}