{"id":89901,"date":"2026-06-22T13:32:11","date_gmt":"2026-06-22T12:32:11","guid":{"rendered":"https:\/\/lasentinelle.dz\/?p=89901"},"modified":"2026-06-22T13:32:13","modified_gmt":"2026-06-22T12:32:13","slug":"jijel-un-ambitieux-projet-de-protection-du-littoral-en-preparation-a-ziama-mansouriah","status":"publish","type":"post","link":"https:\/\/lasentinelle.dz\/index.php\/2026\/06\/22\/jijel-un-ambitieux-projet-de-protection-du-littoral-en-preparation-a-ziama-mansouriah\/","title":{"rendered":"Jijel\u00a0: Un ambitieux projet de protection du littoral en pr\u00e9paration \u00e0 Ziama Mansouriah"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Menac\u00e9e par l\u2019avanc\u00e9e de la mer et l\u2019instabilit\u00e9 des sols, la cit\u00e9 Kamhoun s\u2019appr\u00eate \u00e0 b\u00e9n\u00e9ficier d\u2019une \u00e9tude approfondie destin\u00e9e \u00e0 d\u00e9finir les solutions les plus adapt\u00e9es pour pr\u00e9server ce site sensible, \u00e0 la fois r\u00e9sidentiel, touristique et \u00e9conomique. La lutte contre l\u2019\u00e9rosion c\u00f4ti\u00e8re franchit une nouvelle \u00e9tape dans la wilaya de Jijel. La Direction des travaux publics (DTP) a lanc\u00e9, lundi dernier, un appel d\u2019offres national portant sur la r\u00e9alisation d\u2019une \u00e9tude technique de protection du littoral au niveau de la cit\u00e9 Kamhoun, situ\u00e9e \u00e0 l\u2019ouest du port de p\u00eache de Ziama Mansouriah. Inscrite dans le cadre du programme sectoriel de d\u00e9veloppement de la wilaya, cette op\u00e9ration vise \u00e0 apporter des r\u00e9ponses durables \u00e0 un ph\u00e9nom\u00e8ne qui ne cesse de gagner du terrain le long de certaines portions du littoral jijelien. Depuis plusieurs ann\u00e9es, les habitants de cette zone c\u00f4ti\u00e8re assistent, impuissants, \u00e0 un recul progressif du trait de c\u00f4te sous l\u2019effet combin\u00e9 de l\u2019action des vagues, des courants marins, des intemp\u00e9ries et des infiltrations d\u2019eau. Au-del\u00e0 de la d\u00e9gradation du rivage, les cons\u00e9quences se font \u00e9galement sentir sur les terrains surplombant la mer. Des fissures, affaissements et mouvements de terrain ont \u00e9t\u00e9 signal\u00e9s \u00e0 proximit\u00e9 de plusieurs habitations, faisant craindre une aggravation de la situation lors des \u00e9pisodes de fortes pluies qui caract\u00e9risent r\u00e9guli\u00e8rement cette r\u00e9gion du littoral est du pays. L\u2019\u00e9tude projet\u00e9e devra \u00e9tablir un diagnostic complet de la zone concern\u00e9e. Les sp\u00e9cialistes seront charg\u00e9s d\u2019analyser les caract\u00e9ristiques g\u00e9ologiques et g\u00e9otechniques des sols, le comportement hydrodynamique des courants marins, l\u2019influence des houles ainsi que les impacts environnementaux li\u00e9s \u00e0 l\u2019\u00e9volution du trait de c\u00f4te. Les r\u00e9sultats attendus permettront de d\u00e9terminer les ouvrages les plus appropri\u00e9s pour ralentir, voire stopper, le ph\u00e9nom\u00e8ne d\u2019\u00e9rosion. Parmi les solutions envisag\u00e9es figurent la r\u00e9alisation de digues de protection, de brise-lames immerg\u00e9s ou \u00e9merg\u00e9s, le rechargement artificiel des plages en sable, ainsi que des techniques plus innovantes aujourd\u2019hui utilis\u00e9es dans plusieurs pays confront\u00e9s aux m\u00eames d\u00e9fis. Les experts pourraient notamment recommander le recours \u00e0 des ouvrages dits \u00ab souples \u00bb, privil\u00e9gi\u00e9s dans les approches modernes de gestion int\u00e9gr\u00e9e des zones c\u00f4ti\u00e8res. Ces dispositifs reposent sur la restauration des \u00e9quilibres naturels du littoral gr\u00e2ce \u00e0 des structures \u00e9cologiques capables d\u2019att\u00e9nuer l\u2019\u00e9nergie des vagues tout en pr\u00e9servant les \u00e9cosyst\u00e8mes marins. Les nouvelles technologies offrent \u00e9galement des outils de surveillance particuli\u00e8rement performants. Des relev\u00e9s topographiques par drones, l\u2019imagerie satellitaire \u00e0 haute r\u00e9solution, la mod\u00e9lisation num\u00e9rique en trois dimensions (3D) et les syst\u00e8mes de suivi en temps r\u00e9el permettent d\u00e9sormais de mesurer avec pr\u00e9cision l\u2019\u00e9volution du littoral et d\u2019anticiper les zones \u00e0 risque. Selon des sp\u00e9cialistes en g\u00e9nie c\u00f4tier et en g\u00e9otechnique c\u00f4ti\u00e8re \u00ab les projets de protection du littoral ne peuvent plus se limiter \u00e0 la construction d\u2019ouvrages en b\u00e9ton. Les approches actuelles privil\u00e9gient une combinaison de solutions d\u2019ing\u00e9nierie et de mesures environnementales permettant d\u2019assurer une meilleure r\u00e9silience face aux changements climatiques \u00bb. Selon les estimations des m\u00eames sp\u00e9cialit\u00e9s \u00ab la stabilisation des falaises et des terrains instables n\u00e9cessite aujourd\u2019hui des investigations tr\u00e8s pouss\u00e9es gr\u00e2ce aux technologies g\u00e9ophysiques modernes. Elles permettent d\u2019identifier avec pr\u00e9cision les zones fragilis\u00e9es avant l\u2019apparition de dommages majeurs \u00bb. En attendant le recours aux nouvelles technologies, la future \u00e9tude devra \u00e9galement \u00e9valuer le niveau r\u00e9el de vuln\u00e9rabilit\u00e9 des habitations, des voies de communication et des diff\u00e9rents r\u00e9seaux publics implant\u00e9s dans ce secteur strat\u00e9gique. L\u2019objectif est de d\u00e9finir une feuille de route permettant de prot\u00e9ger durablement les populations tout en pr\u00e9servant les infrastructures existantes. R\u00e9put\u00e9e pour ses paysages naturels et son attractivit\u00e9 touristique, la cit\u00e9 Kamhoun constitue l\u2019un des sites les plus remarquables de la fa\u00e7ade maritime de Jijel. Sa proximit\u00e9 avec le port de p\u00eache de Ziama Mansouriah lui conf\u00e8re \u00e9galement une importance \u00e9conomique particuli\u00e8re, les activit\u00e9s halieutiques et touristiques repr\u00e9sentant une source essentielle de revenus pour de nombreuses familles de la r\u00e9gion. \u00c0 l\u2019heure o\u00f9 les effets du changement climatique et de l\u2019\u00e9l\u00e9vation du niveau de la mer deviennent de plus en plus perceptibles \u00e0 l\u2019\u00e9chelle mondiale, la protection du littoral appara\u00eet d\u00e9sormais comme un enjeu majeur de d\u00e9veloppement durable. \u00c0 Ziama Mansouriah, cette \u00e9tude pourrait ainsi constituer la premi\u00e8re \u00e9tape d\u2019un vaste programme destin\u00e9 \u00e0 renforcer la r\u00e9silience du littoral jijelien et \u00e0 pr\u00e9server un patrimoine naturel pr\u00e9cieux pour les g\u00e9n\u00e9rations futures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zakia Merabet<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Menac\u00e9e par l\u2019avanc\u00e9e de la mer et l\u2019instabilit\u00e9 des sols, la cit\u00e9 Kamhoun s\u2019appr\u00eate \u00e0 b\u00e9n\u00e9ficier d\u2019une \u00e9tude approfondie destin\u00e9e<\/p>\n","protected":false},"author":6,"featured_media":89902,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"default","_twitter_share_type":"default","_linkedin_share_type":"default","_pinterest_share_type":"default","_linkedin_share_type_page":"","_instagram_share_type":"default","_medium_share_type":"default","_threads_share_type":"default","_google_business_share_type":"default","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[31],"tags":[],"class_list":["post-89901","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-regions"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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