Land bridge on I-80 to reduce deer-related car accidents September 2, 2013 Nevada

Nevada Deer and Transportation, News and Information Archive 

...Each tunnel on the eastbound lane and westbound lane of the highway is 200 feet long ...  will cover the tunnels with tons of dirt, and will fence in the land bridge along the sides... Nevada officials reported that studies on similar projects have also shown that deer prefer to walk over the highways instead of under them...

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