{"id":3756,"date":"2026-05-12T17:19:16","date_gmt":"2026-05-12T11:49:16","guid":{"rendered":"https:\/\/www.tigersafariindia.com\/blog\/?p=3756"},"modified":"2026-05-12T17:19:59","modified_gmt":"2026-05-12T11:49:59","slug":"connecting-corridors-in-india","status":"publish","type":"post","link":"https:\/\/www.tigersafariindia.com\/blog\/connecting-corridors-in-india\/","title":{"rendered":"Connecting Corridors: Mitigation Measures on linear intrusion"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.tigersafariindia.com\/blog\/connecting-corridors-in-india\/#What_is_the_is_a_wildlife_corridor\" >What is the is a wildlife corridor?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.tigersafariindia.com\/blog\/connecting-corridors-in-india\/#Kanha-Pench_Corridor_and_Highway_underpass\" >Kanha-Pench Corridor and Highway underpass<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.tigersafariindia.com\/blog\/connecting-corridors-in-india\/#Delhi_%E2%80%93_Dehradun_Expressway_Animal_Underpass_for_Raja_ji_Tiger_Reserve\" >Delhi \u2013 Dehradun Expressway Animal Underpass for Raja ji Tiger Reserve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.tigersafariindia.com\/blog\/connecting-corridors-in-india\/#Canopy_bridges_for_golden_langurs_near_Manas_Tiger_reserve\" >Canopy bridges for golden langurs near Manas Tiger reserve\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.tigersafariindia.com\/blog\/connecting-corridors-in-india\/#Bridge_for_Gibbons_in_Gibbon_wildlife_sanctuary\" >Bridge for Gibbons in Gibbon wildlife sanctuary<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.tigersafariindia.com\/blog\/connecting-corridors-in-india\/#More_examples_of_mitigation_measures_for_linear_intrusion_in_protected_areas\" >More examples of mitigation measures for linear intrusion in protected areas<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_the_is_a_wildlife_corridor\"><\/span>What is the is a wildlife corridor?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">We in India hold some of the world\u2019s extraordinary wildlife, which includes more than 60% of the population of Asian elephants and 75% of wild tigers, including various other highly endangered and endemic species. To conserve and protect this wonderful array of wildlife, various protected areas have been created, which include national parks, wildlife sanctuaries, conservation reserves, tiger reserves, and elephant reserves. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">But on the other hand, India is a fast-developing nation, and to grow like that, we need infrastructures that are supposed to be constructed at the cost of wildlife and protected areas.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The rapid urbanization and fast deforestation fragment the forests into small patches, but with the growing needs of modern societies, developmental activities are necessary. These developmental activities include the construction of highways, railway lines, power lines, pipelines, and canals. These constructions inside the forests are called linear intrusions, which fragment the forests into two different patches, isolating the population of wild animals on both sides. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Although several animals get affected by the linear intrusion, the mostly affected animals are big mammals, which include tigers, leopards, elephants, bears, rhinos, gaur, and several species of monkeys.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" title=\"Majestic Bengal Tiger Walking Along Forest Road\" src=\"https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Majestic-Bengal-Tiger-Walking-Along-Forest-Road_.webp\" alt=\"Majestic Bengal Tiger Walking Along Forest Road\" width=\"1024\" height=\"600\" class=\"alignnone size-full wp-image-3759\" srcset=\"https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Majestic-Bengal-Tiger-Walking-Along-Forest-Road_.webp 1024w, https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Majestic-Bengal-Tiger-Walking-Along-Forest-Road_-300x176.webp 300w, https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Majestic-Bengal-Tiger-Walking-Along-Forest-Road_-768x450.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">These linear intrusions obstruct the free movement of wildlife through forests and create isolated populations. These intrusions create barriers that restrict the movement of species dependent on landscape-level movement for finding mates, seasonal migration, and accessing resources like water and food, as well as for avoiding inbreeding, confining them to just one patch of forest.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kanha-Pench_Corridor_and_Highway_underpass\"><\/span><span style=\"font-weight: 400;\">Kanha-Pench Corridor and Highway underpass<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The Kanha\u2013Pench Corridor is one of the most studied wildlife corridors in India. Various conservation organizations, like WWF-India (Worldwide Fund for Nature) and FES (Foundation for Ecological Security), are active in the corridor and regularly monitor it. There are several linear intrusions in the corridor, the major one being NH 44 and the expansion and conversion of the Nainpur-Balaghat section of the narrow-gauge railway line to broad gauge.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The mitigation measures adopted in KPC are the following:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Elevated highway and Underpasses:<\/span><span style=\"font-weight: 400;\"> Approximately 16 km of the highway that passes through the corridor and reserve is elevated. There are several underpasses that have been created along with the soundproof barrier on the side of the road to minimize the disturbance.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">World\u2019s longest underpass<\/span><span style=\"font-weight: 400;\">: An underpass 750 meters long was built as part of this project. The images captured by camera traps show that the underpass is used by tigers, leopards, sambar, gaur, and other species of animals found in both the connected reserves.\u00a0\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Monitoring<\/span><span style=\"font-weight: 400;\">: There is regular monitoring of the efficacy of this structure by the forest department and the researchers.\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Delhi_%E2%80%93_Dehradun_Expressway_Animal_Underpass_for_Raja_ji_Tiger_Reserve\"><\/span><span style=\"font-weight: 400;\">Delhi \u2013 Dehradun Expressway Animal Underpass for Raja ji Tiger Reserve<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The recently inaugurated Delhi-Dehradun Expressway passes through the Rajaji Tiger Reserve in Uttarakhand. This expressway cut short the travel time between Delhi and Dehradun from 6 hours to 2.5 hours. A 12-km elevated corridor, which is the largest in Asia, has been constructed on the stretch of the road that passes through the tiger reserve. This corridor included multiple animal underpasses to allow safe passage for tigers, elephants, and other big mammals.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" title=\"Newly constructed Delhi dehradun Expressway\" src=\"https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Newly-constructed-Delhi-dehradun-Expressway.webp\" alt=\"Newly constructed Delhi dehradun Expressway\" width=\"1024\" height=\"600\" class=\"alignnone size-full wp-image-3757\" srcset=\"https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Newly-constructed-Delhi-dehradun-Expressway.webp 1024w, https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Newly-constructed-Delhi-dehradun-Expressway-300x176.webp 300w, https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Newly-constructed-Delhi-dehradun-Expressway-768x450.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">This project features two large underpasses for elephants, eight dedicated animal passes, and a 340-meter tunnel. The elevated corridor is designed in such a way so that the largest animals, the elephants, could pass through it. The elevated corridor offers a 6\u20137-meter clearance for the animals. The sound and light barriers are also installed to prevent disruptions caused by traffic passing through highways. A camera trap study done on a stretch of 40 days has recorded over 40,000 animals of 18 different species using the underpass.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Canopy_bridges_for_golden_langurs_near_Manas_Tiger_reserve\"><\/span><span style=\"font-weight: 400;\">Canopy bridges for golden langurs near Manas Tiger reserve\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">In the year 2025, four hanging canopy bridges were installed in Assam near the Manas tiger reserve for the golden langur (<\/span><i><span style=\"font-weight: 400;\">Trachypithecus geei<\/span><\/i><span style=\"font-weight: 400;\">), a highly endangered species of primate endemic to the Eastern Himalayas. These bridges, built by the forest department and the local community, show care and commitment for the golden langur. The bridges are made from sturdy plastic-coated material to prevent electrocution and road accidents.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These bridges are installed around the Bongaigaon\/Kakoijana reserve forest, which serves as a vital corridor near the Manas landscape. The structure is installed 9\u201310 meters above the ground, allowing the langurs to cross 30-meter-wide highways without going down to the ground. The langurs started using the bridge within 5 days of installation.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Bridge_for_Gibbons_in_Gibbon_wildlife_sanctuary\"><\/span><span style=\"font-weight: 400;\">Bridge for Gibbons in Gibbon wildlife sanctuary<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Gibbon Wildlife Sanctuary is a small 20 sq km protected area in Assam that is renowned for its primate diversity, especially hoolock gibbons, and is surrounded by tea gardens from all sides. There is a railway line passing through the sanctuary, which further fragments the forests into two patches. Most of the primates in the sanctuary are canopy dwellers who often cross the railway line in search of resources on the other side, which endangers their lives.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" title=\"Hoolock gibbon female Dehing Dehing Patkai Wildlife Sanctuary, Assam, India\" src=\"https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Hoolock-gibbon-female-Dehing-Dehing-Patkai-Wildlife-Sanctuary-Assam-India.webp\" alt=\"Hoolock gibbon female Dehing Dehing Patkai Wildlife Sanctuary, Assam, India\" width=\"1024\" height=\"600\" class=\"alignnone size-full wp-image-3758\" srcset=\"https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Hoolock-gibbon-female-Dehing-Dehing-Patkai-Wildlife-Sanctuary-Assam-India.webp 1024w, https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Hoolock-gibbon-female-Dehing-Dehing-Patkai-Wildlife-Sanctuary-Assam-India-300x176.webp 300w, https:\/\/www.tigersafariindia.com\/blog\/wp-content\/uploads\/2026\/05\/Hoolock-gibbon-female-Dehing-Dehing-Patkai-Wildlife-Sanctuary-Assam-India-768x450.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">To provide some kind of connectivity, the Wildlife Institute of India, the forest department of Assam, and Northeast Frontier Railways have come up with a solution: making a canopy bridge for the movement of primates, especially gibbons.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These canopy bridges were built to connect the forests on both sides of the railway line. The bridges are constructed using mountaineering-grade ropes, vines, and wood to create a natural-looking overpass for the primates and other tree-dwelling animals like Malayan giant squirrels.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Previously, the bridges were made using iron rods, which were rejected by gibbons. Then the Northeast Frontier Railways and Forest Department approached the Wildlife Institute of India, which designed the current bridge, which looks more natural and is used by gibbons and other primates.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"More_examples_of_mitigation_measures_for_linear_intrusion_in_protected_areas\"><\/span><span style=\"font-weight: 400;\">More examples of mitigation measures for linear intrusion in protected areas<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In India, apart from those mentioned above, there are several examples of mitigation measures for linear intrusion. The Mumbai-Nagpur Samruddhi Mahamarg includes multiple overpasses specifically designed to connect fragmented habitats. Installing bird deflectors and insulating wires or shifting overhead lines underground to reduce electrocution risks for birds and arboreal mammals. The Ranthambore tiger reserve has a dedicated wildlife overpass on the Delhi-Mumbai expressway.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">These mitigation measures show our commitment to the conservation of wildlife with ongoing developmental projects. Though these projects destroy the habitat, at some points they are necessary, and creating an underpass, overpass, and canopy bridges solves the problem of fragmentation at a considerable level.<\/span><\/p>\n<p>If you like our blog, also give a read to <a href=\"https:\/\/www.tigersafariindia.com\/blog\/communicable-animal-diseases-a-tragic-death-of-tigers\/\">Communicable Animal Diseases: A Tragic Death of Tigers<\/a> and <a href=\"https:\/\/tigerssafari.com\/all-about-royal-bengal-tiger\/\" target=\"_blank\" rel=\"noopener\">The Royal Bengal Tiger: All About The Pride of the Jungle<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the is a wildlife corridor? We in India hold some of the world\u2019s extraordinary wildlife, which includes more than 60% of the population of Asian elephants and 75% of wild tigers, including various other highly endangered and endemic species. To conserve and protect this wonderful array of wildlife, [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":3760,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[503],"tags":[],"class_list":["post-3756","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wildlife-conservation-in-india"],"_links":{"self":[{"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/posts\/3756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/comments?post=3756"}],"version-history":[{"count":1,"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/posts\/3756\/revisions"}],"predecessor-version":[{"id":3761,"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/posts\/3756\/revisions\/3761"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/media\/3760"}],"wp:attachment":[{"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/media?parent=3756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/categories?post=3756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tigersafariindia.com\/blog\/wp-json\/wp\/v2\/tags?post=3756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}