Gallery: Innovative Wildlife Crossings for Denver’s Perilous I-70 West


hypar-natur by HNTB Engineering with MVVA

hypar-natur is a modular system of hypar forms that allow for minimal site disturbance and easy creation, assembly, and deployment. It can be easily expanded or adapted to meet migration an changes in migration and capacity.

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  1. Cueball December 4, 2010 at 1:49 am

    This type of land bridge structure for animals has been in use or years (approx 10yrs to my memory) in Banff And Jasper National Parks in Canada. The Hwy system is fenced-off in all directions with the bridges as often as 2-3km, thus funneling the animals towards the land bridge. YES they work great, and have been saving the lives of Humans and the Animals since introduced.

  2. clou December 2, 2010 at 5:07 pm

    In response to tjane09’s comment:
    Yes, it’s true that animals won’t naturally seek out bridges unless the bridges are designed to take advantage of land-form and habitat patterns. Another key component of these bridges which has not been widely reported is that all of the proposals include fencing between bridges, underpasses, and disruptive terrain features (i.e. steep rocky slopes – though not a problem for bighorn sheep). Animals don’t cross the highway randomly, rather a significant amount of field research suggests that ideal locations for bridges such as these can be pinpointed and that animals can be funneled onto them. Of course, these proposals will need to be refined over time as the knowledge expands, but they’re a great start!

  3. tjane09 December 2, 2010 at 12:55 pm

    this is a good idea in theory…but most animals aren’t goin to say…hey why don’t i walk a couple minutes down that way and safely cross over the highway with that bridge…. they are just going to cross the highway…

  4. Dim December 1, 2010 at 3:26 pm

    I remember a West Wing episode years ago where “dimwitted” conservationists proposed building a animals only highway as a way to protect animals. In the show the scientists were basically laughed out of the building. The shows “solution” was rediculous but the problem that it tried to address is very real.
    It’s nice to see that people are taking looking into ways to save lives and protect animals.

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