Critter crossings: Trans-Canada Highway is getting the latest wildlife bridge
, a rarity that far south in the Cascades.) You'll also spot several wildlife bridges if you drive across certain parts of Germany and France and even in Turkey .
Building a bridge is a massive undertaking, but these projects benefit drivers and wildlife alike. A bridge located in Banff National Park has been standing for nearly 30 years, and the same report notes that about 100 elk were killed by cars annually there before it was set up. Fast-forward to 2023, and that number has dropped to nearly zero. Getting wildlife to use a bridge built for them is easier said than done, however.
Wildlife bridges in Banff National Park, top; in Rhineland-Palatinate, Germany, lower left; and near Adana, Turkey. Elk don't read street signs, and grizzly bears don't use Google Maps, so architects need to work jointly with biologists to design the right type of bridge. The project Dialog has designed starts with a pair of steel arches positioned over the road; it's the basic foundation that the rest of the bridge will rest on.
"One side of the bridge is going to be higher than the other side of the bridge. So, there's a lowland condition and [an] upland condition.
Canadian authorities expect the bridge will be completed in October 2023, though they might wait until 2024 to begin planting trees. For more details on the Calgary project, check out the report in
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