Wildlife Cons And Cons Of The United State Department Of Transportation

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Wildlife Crossings Pros and Cons In 2015, the Washington State Department of Transportation began construction on a series of improvement to I-90, a key interstate that connects eastern and western Washington. The project includes many measures to improve traveler safety and efficiency such as avalanche bridges, expanded lanes, straightened curves, and replacement bridges (WSDOT-I-90-Snoqualmie Pass East, 2016). However, in addition to those changes, they are also adding controversial wildlife crossing structures to the interstate that are intended to allow wildlife to get across the roadway safely without entering traffic. There are several benefits like improved genetic diversity of our wildlife, less injuries and death from collisions with them, and lower economic costs as result, but also many drawbacks such as high initial costs, predators exploiting the crossing structures, and the crossing structures not being used by the animals they were intended for. Some of the major benefits of the I-90 crossing structures are the increased genetic diversity of our wildlife, lowering our costs from collisions and less injuries and death from collisions. With fewer collisions with animals and allowing animals a safe way to cross the roadway, they are able to move more freely and safely between various populations of their species (Doughton, 2015). This allows them to breed with those they are not closely related to and makes the population more genetically diverse. Diversity in
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