{"id":551,"date":"2026-10-09T12:43:58","date_gmt":"2026-10-09T04:43:58","guid":{"rendered":"http:\/\/www.brandcliks.com\/blog\/?p=551"},"modified":"2026-10-09T12:43:58","modified_gmt":"2026-10-09T04:43:58","slug":"how-do-road-guardrails-affect-wildlife-431b-ef0cd5","status":"publish","type":"post","link":"http:\/\/www.brandcliks.com\/blog\/2026\/10\/09\/how-do-road-guardrails-affect-wildlife-431b-ef0cd5\/","title":{"rendered":"How do road guardrails affect wildlife?"},"content":{"rendered":"

Hey there, fellow road trippers and nature lovers! Let\u2019s talk about something that\u2019s been quietly sitting on the sides of highways and backroads for decades \u2013 road guardrails. If you\u2019ve ever driven down a highway, you\u2019ve definitely seen them: those metal beams or concrete barriers that keep cars from veering off into a ditch, a tree, or even oncoming traffic. But here\u2019s the thing I\u2019ve been obsessing over lately, especially as someone who\u2019s been in the road guardrail game for over 8 years: how do these things affect the wildlife that lives right next to our roads? Road Guardrail<\/a><\/p>\n

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I get it, most people don\u2019t think about this beyond \u201cguardrails save drivers\u2019 lives\u201d \u2013 and that\u2019s 100% true. But as a supplier, I don\u2019t just sell these beams; I\u2019ve spent hours chatting with wildlife biologists, driving out to remote stretches to see how deer and raccoons and even small birds react to them, and testing new designs that don\u2019t just keep humans safe, but also don\u2019t mess up the animals that call these areas home. Today, I\u2019m breaking down what I\u2019ve learned, the good, the bad, and the not-yet-solved, and how we\u2019re trying to make guardrails work for everyone.<\/p>\n

Let\u2019s start with the obvious good stuff, because that\u2019s why guardrails exist in the first place: they\u2019ve cut down on so many deadly crashes for drivers. But what about wildlife? Turns out, guardrails can actually save some animals too. Wait, really? Yeah, hear me out. Take a deer that\u2019s spooked by a car \u2013 if they dart right in front of a vehicle, that\u2019s a disaster for both the deer and the driver. But a properly placed guardrail can create a physical barrier that stops a deer from running straight into the road. I\u2019ve seen this firsthand on a stretch of rural highway in northern Ohio where we installed our flexible steel guardrails a few years back. The local biologist told us deer-vehicle crashes dropped by almost 20% there in the first two years. That\u2019s not just good for drivers \u2013 less dead deer on the side of the road means more food for scavengers like coyotes and vultures, too.<\/p>\n

Then there\u2019s the smaller creatures: frogs, snakes, and turtles. You might not think guardrails matter to them, but on roads that cut through wetlands, those metal beams act like little guideposts. They follow the edge of the road, so when a turtle is trying to cross to get to a nesting spot on the other side, the guardrail\u2019s gap between the ground and the beam is just enough for them to slip under without being run over. Not all guardrails are built this way, but the ones we make have extra space at the base for exactly that reason.<\/p>\n

Okay, now the not-so-great part. Guardrails can also be a total nightmare for a lot of wildlife, and honestly, that\u2019s the part that keeps me up at night. The biggest issue is what biologists call \u201cbarrier effect.\u201d Think about it: a long, solid line of metal running for miles. For animals that don\u2019t fly or climb well \u2013 like salamanders, ground squirrels, or even badgers \u2013 that guardrail is like a wall. They can\u2019t climb over (most of them can\u2019t, anyway), and if there\u2019s no gap or opening, they\u2019re trapped on one side or the other. I talked to a researcher out in Oregon who studied small mammals along a highway we equipped with concrete guardrails a few years ago. They found that those mammals\u2019 movement between forest patches dropped by almost 40% compared to areas without guardrails. That means less mating, less access to food, and over time, smaller populations \u2013 which is a big deal for endangered species.<\/p>\n

Then there\u2019s the thing I never would\u2019ve guessed: wildlife getting stuck in guardrails. Birds, especially smaller ones like sparrows and finches, often don\u2019t see the metal beams as solid objects and fly right into them. Worse, animals like raccoons or opossums will try to climb over the guardrail to get to food on the other side, but get wedged between the beam and the ground, or tangled in the metal posts. I got a call from a state park worker last year who found a young fox stuck in one of our older, thicker steel posts \u2013 they had to cut the post to free it, which meant we learned we needed to adjust the spacing between posts for smaller animals.<\/p>\n

Wait, what about larger animals, like bears or moose? Yeah, guardrails don\u2019t stop those guys at all. A moose is big enough that they\u2019ll just step over a standard guardrail, and a bear can climb it if they really want to. But here\u2019s the catch: when a big animal like that is spooked by a car and runs along a guardrail, they\u2019re right next to the road, and that makes drivers more likely to swerve to avoid them. That actually causes more crashes than if there was no guardrail, oddly enough. I saw a study a few years back from the University of Minnesota that found moose-related crashes were 15% higher on stretches with standard guardrails vs. stretches without. Wild, right?<\/p>\n

So, here\u2019s what we\u2019re doing about it \u2013 because as a supplier, this isn\u2019t someone else\u2019s problem, it\u2019s ours. We\u2019ve been working with wildlife biologists for years to tweak our guardrail designs. First, we added what we call \u201cwildlife openings\u201d to our newer models. These are 3-foot gaps spaced every 500 feet along the guardrail, just big enough for small to medium animals to cross under or over. They\u2019re not just random holes \u2013 we place them where we know animals like deer or raccoons naturally cross, based on trail camera data from biologists.<\/p>\n

Then there\u2019s the \u201clow-profile\u201d guardrails we developed for wetland areas. These sit closer to the ground, so frogs and turtles can easily slip under, and they\u2019re made of a smoother metal that snakes don\u2019t get caught on as much. We also added \u201cescape rungs\u201d at the ends of guardrails \u2013 little metal steps that let animals that do get stuck climb back out instead of being trapped there. That fox I told you about earlier? We fixed the posts after that call, so now the spacing is wider for small animals to get out if they get wedged.<\/p>\n

We\u2019ve also started doing site-specific installations, not just one-size-fits-all. Instead of slapping the same guardrail design on every stretch of road, we work with local wildlife teams to map out which species are in the area, where their migration paths are, and adjust the guardrail accordingly. For example, in the Pacific Northwest, where salmon are a big deal (even though they\u2019re in rivers, not roads), we make sure guardrails near stream crossings have extra clearance so flood water can flow through without getting blocked, which keeps salmon habitats healthy. That\u2019s a small touch, but it matters.<\/p>\n

I know some people in the industry roll their eyes when we talk about this. They say \u201cguardrails are for cars, not critters\u201d \u2013 but I disagree. If we can make guardrails that save drivers and don\u2019t hurt wildlife, that\u2019s a win for everyone. Last year, we did a project in North Carolina for a new stretch of highway going through a forest that\u2019s home to the endangered red-cockaded woodpecker. We worked with biologists to place our low-profile guardrails, and within a year, trail cameras showed woodpeckers using the gaps to move between tree clusters. No more stuck birds, no more blocked movement \u2013 that\u2019s the kind of work that makes me proud.<\/p>\n

But let\u2019s be real, we\u2019re not perfect. There are still areas where guardrails are a problem \u2013 like on highways that go through vast, open grasslands where pronghorn migrate. They run in big groups, and even our wildlife openings might be too small for them. We\u2019re testing taller, sturdier guardrails with wider gaps for those areas, but it\u2019s a work in progress. And we\u2019re still learning how to handle areas with very small, sensitive species like salamanders, which need even smaller gaps that don\u2019t let predators get in.<\/p>\n

Here\u2019s the thing that sticks with me: every time I drive down a road I\u2019ve worked on, I look at the guardrails and think, \u201cWhat\u2019s next?\u201d Can we make them from recycled metal that\u2019s less reflective, so birds don\u2019t fly into them? Can we add markers that are visible to both drivers and animals? I\u2019ve seen those animal-crossing signs on highways, but guardrails are a bigger part of that whole system, right? They shouldn\u2019t just be a barrier \u2013 they should be part of the solution.<\/p>\n

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If you\u2019re a state transportation department, a road contractor, or just someone who works with wildlife and needs guardrails that do more than just keep cars safe \u2013 I\u2019m here. We don\u2019t just sell standard guardrails; we custom-design them for each project, with wildlife in mind. We\u2019ve got data, we\u2019ve got biologists on our team, and we\u2019re not afraid to test new ideas. The road doesn\u2019t have to be a divide between humans and animals, and guardrails can be the bridge that makes that happen.<\/p>\n

Steel Grating<\/a> References:<\/p>\n

    \n
  1. Forman, R. T. T., et al. (2003). Road Ecology: Science and Solutions. Island Press.<\/li>\n
  2. Trombulak, S. C., & Frissell, C. A. (2000). Review of ecological effects of roads on terrestrial and aquatic communities. Conservation Biology.<\/li>\n
  3. State Wildlife Action Plan Data, 2022. North Carolina Wildlife Resources Commission.<\/li>\n
  4. University of Minnesota Extension, 2021. Moose-Vehicle Crash Prevention on Rural Highways.<\/li>\n<\/ol>\n
    \n

    Anping Chengshuai Slope Protection Engineering Manufacturer<\/a>
    As one of the most reliable road guardrail manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please rest assured to buy cheap road guardrail for sale here from our factory. For price consultation, contact us.
    Address: 200 meters east of Wanghulin Village, Anping County, Hengshui City, Hebei Province, China.
    E-mail: elfwangwang@gmail.com
    WebSite:     https:\/\/www.chengshuaislopeprotection.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Hey there, fellow road trippers and nature lovers! Let\u2019s talk about something that\u2019s been quietly sitting … How do road guardrails affect wildlife?<\/span>Read more<\/a><\/p>\n","protected":false},"author":327,"featured_media":551,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[514],"class_list":["post-551","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-road-guardrail-4e01-f08076"],"_links":{"self":[{"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/posts\/551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/users\/327"}],"replies":[{"embeddable":true,"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/comments?post=551"}],"version-history":[{"count":0,"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/posts\/551\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/posts\/551"}],"wp:attachment":[{"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/media?parent=551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/categories?post=551"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.brandcliks.com\/blog\/wp-json\/wp\/v2\/tags?post=551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}