<figure><img width="2378" height="832" src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110161132/636d1a109c7e80680e0ac852jpeg.jpg" alt=""/><figcaption>Vehicular and wildlife crossings ongoing construction at East-West electrified railway lines near Bardibas, Nepal. Photos: PRAMOD NEUPANE</figcaption></figure>Nepal’s highways saw 108 roadkills of endangered wildlife last year. There were even more hit-and-run fatalities of animals outside protected areas, even though vehicular flow fell during the five months of Covid-19 lockdown. Many of Nepal’s new infrastructure like highways, railways, irrigation canals and transmission lines <a href="https://www.nepalitimes.com/banner/in-conservation-nepal-is-not-out-of-the-woods-yet/" target="_blank" rel="noopener noreferrer">crisscross natural habitats and jungle corridors</a>. But infrastructure need not necessarily be a bad word for conservation – there can also be wildlife-friendly infrastructure.Underpasses and crossings, for instance, have been shown to ease the free movement of large and small mammals, further decreasing the chance that they are hit by speeding trucks and buses. However, much like the haphazard construction of new roads in Nepal, unscientific infrastructure meant to aid wildlife can in fact adversely affect them, sometimes even decimate the last few remaining populations of endangered species.Read also: <a href="https://www.nepalitimes.com/banner/underpasses-to-reduce-roadkill-in-nepal/" target="_blank" rel="noopener noreferrer">Underpasses to reduce roadkill in Nepal</a>, Tufan NeupaneWhen the city of Davis in California retrofitted a toad tunnel underneath a newly constructed six-lane highway in 1995, instead of protecting local toad and frog populations, they ended up killing them because the heat from lights meant to attract frogs killed them. The luckier ones were eaten by hungry birds that quickly learned that the tunnel was a free meal takeaway. Conservationists have come a long way since then, and have learnt from their mistakes.Wildlife corridors across infrastructure need to be designed carefully so that they minimise road carnage, and not result in collateral damage. Nepal has started taking baby steps in developing wildlife-friendly linear infrastructures -- a cross-ministerial approach contributing to natural resources safeguards.  <figure><img width="752" height="501" src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110161132/636d1a149c7e80680e0ac853jpeg.jpg" alt=""><figcaption>Wildlife underpass at Narayangadh-Muglin Highway, Nepal. </figcaption></figure>The Department of Roads (DoR) piloted four underpasses across Narayangad-Muglin Highway, two in Ramnagar and the other two in the Aaptari stretch of Barandabhar Corridor Forest. Every two consecutive underpasses were spaced 50m apart and all of them with dimensions, 4 m wide and 5.5 m in height. When <a href="https://wwfasia.awsassets.panda.org/downloads/use_and_effectiveness_of_wildlife_crossings_in_nepal.pdf" target="_blank" rel="noopener noreferrer">evaluated separately by World Wildlife Fund (WWF) Nepal</a> under Hariyo Ban Program for an intermittent one-month spell thrice in a year, 15 animals were spotted using the tunnels. A National Trust for Nature Conservation (NTNC) study <a href="https://www.nepjol.info/index.php/forestry/article/download/33635/26443/" target="_blank" rel="noopener noreferrer">reported 7 wildlife species</a> from a 15-days camera trap monitoring study. Despite the dimensions, the underpasses seem to have served their preliminary purpose of habitat connectivity. These structures were functional also because waterholes were in close proximity and fences installed 2km along the roadside helped to funnel wildlife through the desired path. The Banke National Park <a href="https://kathmandupost.com/climate-environment/2019/10/14/canopy-bridges-installed-to-prevent-deaths-of-banke-wildlife-on-highways" target="_blank" rel="noopener noreferrer">piloted six canopy crossings</a> for arboreal animals along the busy East-West Highway in collaboration with Hariyo Ban Program II. Afterward, the crossings were <a href="https://pdf.usaid.gov/pdf_docs/PA00XD7W.pdf" target="_blank" rel="noopener noreferrer">found to be used</a> by Rhesus macaque, Tarai gray langur, Asian palm civet among others. These arboreal bridges are not only cost-effective but highly scalable in locations where highways traverse dense forests.Other infrastructure like railways, transmission lines, and irrigation canals also require consideration since they are such obstacles to animal movement. <a href="https://www.nepalitimes.com/latest/india-returns-nepali-rhino-swept-away-by-flood/" target="_blank" rel="noopener noreferrer">Flash flood</a> crossing zones constructed over Sikta Irrigation Project's main canals, for instance, act as wildlife overpasses and facilitate migration in the Kamdi Corridor which connects Nepal's Banke National Park to India's Suhelwa Wildlife Sanctuary. More such structures have been built recently with village road bridges to reduce wildlife drowning, especially in biodiversity hotspot areas. The Mahakali III Irrigation project that directly fragments Shuklaphanta National Park's core area now has incorporated six bridges to allow even the passage of elephant herds.   <figure><img width="752" height="501" src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110161132/636d1a179c7e80680e0ac854jpeg.jpg" alt=""><figcaption>Wildlife overpass constructed over the main canal of Sikta Irrigation Project especially for flash floods, Nepal.</figcaption></figure>Wildlife-friendly linear infrastructures is gradually getting recognised by engineers in Nepal as a solution-oriented approach in conservation. This is also thanks to the Nepal government for commissioning environmental units, and getting conservationists and planners to work together.  International standards today restrict developers from any construction activity in key biodiversity areas. But if that is not possible, minimisation is the next action followed by mitigation to lessen the adverse impact. If there are fatalities, compensation must also be factored in.  Nepal now awaits endorsement of wildlife-friendly linear infrastructure guidelines from the Cabinet, prepared in leadership of the Ministry of Forest and Environment (MoFE) – this would be a milestone in smart linear infrastructure as Nepal upgrades connectivity as it aims to reach middle-income status by 2030. Read also: <a href="https://www.nepalitimes.com/opinion/nepal-needs-wildlife-friendly-highways/" target="_blank" rel="noopener noreferrer">Nepal needs wildlife friendly highways</a>, Pramod NeupaneIn this year’s budget, the government allocated Rs15.34 billion to upgrade highways, and that includes installation of additional wildlife crossings along the E-W highway. But we should design connectivity solutions that are built on best practices in Asia. Future safeguard designs should reflect the need of almost the entire animal taxa whose habitat has been encroached by the expansion of infrastructure through a combination of overpasses and underpasses. This requires careful design and landscaping the natural environment while retaining its functionality. Design specifications (usually structure dimension, openness, spacing, and slope considerations), adapted to local conditions, are equally important to ensure such structures become operational after construction. Another important aspect is roadside intervention such as fencing, and restoration of degraded land using native soil and local vegetation. Finally, post-construction evaluation is an indispensable part of the entire project, to gauge the performance of crossings and determine whether the employed mitigation strategies were effective. A genuine assessment of frequent usage, lowered road mishaps, and reduced human-wildlife conflict will provide valuable feedback to improve the structures. Biraj Shrestha is the Independent Consultant (Nepal Liaison) for the USAID Linear Infrastructure Safeguards in Asia (LISA) Project. thepristinewoods@gmail.comPramod Neupane is the Sustainable Infrastructure Programs Manager at WWF Nepal.

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Infrastructure for wildlife in Nepal

Nepal has notched notable successes in conserving nature: five years of <a href="http://archive.nepalitimes.com/blogs/thebrief/2017/01/29/1000-days-of-the-rhino/" target="_blank">zero poaching of rhinos</a> and tigers in national parks, the <a href="https://www.nepalitimes.com/banner/how-many-tigers-in-nepal/" target="_blank">doubling of the wild tiger population</a> in 10 years and protection of plant species. However, roads, irrigation canals, transmission lines and even railways are now threatening to undermine these achievements. Conservationists say that balancing the need for economic growth with ecological protection will be even more challenging than combating poaching. As the country marks National Wildlife Week from 14-20 April, Nepal’s planners need to find ways to build new infrastructure without irreversibly harming the country's biodiversity. Read also: <a href="https://www.nepalitimes.com/?p=24334&amp;preview=true" target="_blank">Protecting the last home of the Spiny Babbler</a>, Carol Inskipp and Rupendra Karmacharya <div class="embed-block"><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221108111152/636a35359c7e80680e048299jpeg.jpg" alt="" width="1400" height="933"></div> Now that Nepal has domestic poaching under control, it needs to focus on controlling the transit of wildlife smuggling. Nepal is a hub for trafficking of tiger, rhino and <a href="https://www.nepalitimes.com/banner/protecting-pangolins-from-being-eaten-to-extinction/" target="_blank">pangolin parts</a> from India and Africa. Even live chimpanzees and birds have been found at Kathmandu airport. Nepal is now a victim of its own success in conservation. With poaching controlled, protected areas are now getting overcrowded with wildlife, leading to the threat of disease and an increase in <a href="https://archive.nepalitimes.com/article/Nepali-Times-Buzz/more-rhinos-means-more-encounter,4045" target="_blank">human-animal conflict</a>. Read also:&nbsp; <a href="https://archive.nepalitimes.com/article/nation/habitat-destrcution-of-tiger-in-Tarai,3423" target="_blank">Allow tigers to roam more freely</a>, Om Astha Rai <a href="https://www.nepalitimes.com/banner/its-a-jungle-out-there/" target="_blank">It's a jungle out there</a>, Kunda Dixit <a href="https://archive.nepalitimes.com/article/Nepali-Times-Buzz/more-rhinos-means-more-encounter,4045" target="_blank">More rhinos means more encounters</a>, Alex Dudley <div class="embed-block"><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221108111152/636a35389c7e80680e04829ajpeg.jpg" alt="" width="1500" height="1083"></div> <div class="embed-block"><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221108111152/636a35359c7e80680e048299jpeg.jpg" alt="" width="1400" height="933"></div> In addition, climate change is leading to weather extremes that have aggravated the problems of water scarcity, flash floods and prey decline. Even though rhinos are no longer poached, for example, there has been a sharp increase in fatalities, with 41 dead in the last 9 months alone in Chitwan. Besides old age, most have died of disease, fights with other rhinos, or poisoning. Last month, a rhino died in Sauraha after falling into the septic tank of a hotel. There has also been an increase in <a href="https://www.nepalitimes.com/here-now/how-humans-can-live-with-wild-elephants/" target="_blank">wild elephants</a> and tigers entering human settlements in search of food due to habitat encroachment in their migration corridors. Last year, <a href="http://archive.nepalitimes.com/article/editorial/deep-water,3883" target="_blank">flash floods in Chitwan</a> washed away rhinos: 12 of them had to be rescued and brought back from India. However, the biggest threat to Nepal’s wildlife in the post-poaching era is new infrastructure crisscrossing nature reserves. Major transmission lines have been built or are planned through national parks, the new postal highway slices through nature reserves, new irrigation canals such as Babai, Sikta and Ranijamara have bifurcated areas frequented by wildlife, and the new East-West railroad running parallel to the E-W Highway will fragment many national parks. <div class="embed-block"><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221108111152/636a35389c7e80680e04829ajpeg.jpg" alt="" width="1500" height="1083"></div> Nature reserves and national parks make up one-fourth of Nepal’s area. With infrastructure building spree currently underway, experts say the country will soon lose 200,000 hectares of forests. This will result in rampant habitat destruction, and increase in road kills and deaths of animal that fall into irrigation canals, which account for the highest number of wildlife fatalities. New roads have also brought haphazard urbanisation and pollution: a growing number of ungulates and carnivores have been found to have died after ingesting plastic or chemicals. One of the biggest sources of habitat destruction will be the much talked about <a href="https://www.nepalitimes.com/banner/does-nepal-need-a-4th-international-airport/" target="_blank">Nijgad airport near Parsa National Park</a>, which will decimate one of the last remaining hardwood forests in the eastern Tarai, removing a major migratory corridor for wild elephants. “The government has always prioritised infrastructure, which while essential for development, is a major threat to conservation,” says Bishnu Prasad Shrestha of the Department of National Parks and Wildlife Conservation (DNPWC). “Our preoccupation therefore is with mitigation measures on the existing roads and finding out ways to make new infrastructure safer for wildlife. If we do not act now, it will be too late. Our tourism industry and economy depend on our conservation efforts.” <div class="embed-block"><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221108111152/636a353b9c7e80680e04829bjpeg.jpg" alt="" width="800" height="1200">The Sikta Irrigation Canal has several overpasses for wild animals</div> DNPWC and WWF Nepal organised a regional workshop this month in Kathmandu to find ways to promote sustainable green infrastructure. Some of the key recommendations include the study of wildlife movement before mapping the alignment of linear infrastructure, like roads, railways, canals and transmission lines. The good news is that planners at the Department of Roads think the country does not need too many more roads, the existing strategic highways and feeder roads need to be upgraded. There have been initiatives like installing CCTV cameras to monitor vehicles, enforcing time cards on highways that traverse national parks, as well as building over and under-passes so wildlife can cross highways, irrigation canals or train tracks. DNPWC is now planning five canopy bridges for arboreal species in Banke, and contractors have agreed to build new underpasses while widening the Daune-Narayangad section of the East-West Highway. The route for the proposed <a href="http://archive.nepalitimes.com/article/nation/planned-new-east-west-railroad-and-expressway-threaten-the-Chitwan-National-Park,1079" target="_blank">E-W Electric Railway</a> that would have cut through Chitwan National Park has been changed after protests from activists. But these isolated cases will not be sufficient to minimise the nationwide threat to nature reserves from infrastructure in the long run. Experts say wildlife friendly infrastructure based on biodiversity assessment and species movement is a must. Nabin Gopal Baidhya of the non-government Wildlife Conservation Nepal thinks there may be too much emphasis on the impact of roads on national parks. He says: “We have to go beyond the protected areas and study the condition of forests outside parks. How can villages and community forests work with road contractors to protect trees? Ultimately we have to find a way for humans and nature to safely co-exist.”

wildlife-friendly-infrastructure

Infrastructure for wildlife in Nepal

In conservation, Nepal is not out of the woods yet