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Francisco Kjolseth | The Salt Lake Tribune Animal droppings near Parley's Summit indicate the abundance of wildlife near the freew | Courtesy of Utah Department of Transportation A rendering shows the proposed wildlife bridge on Parleys Summit. The bridge is Francisco Kjolseth | The Salt Lake Tribune A wildlife bridge is slated to be built over I-80 at Parleys Summit, a notorious spot f Francisco Kjolseth | The Salt Lake Tribune A wildlife bridge is slated to be built over I-80 at Parleys Summit, a notorious spot f Francisco Kjolseth | The Salt Lake Tribune Moose tracks near Parley's Summit indicate the abundance of wildlife near the freeway. Francisco Kjolseth | The Salt Lake Tribune A wildlife bridge is slated to be built over I-80 at Parleys Summit, a notorious spot f Francisco Kjolseth | The Salt Lake Tribune Deer tracks near Parley's Summit indicate the abundance of wildlife near the freeway. A | Courtesy of Utah Department of Transportation A rendering shows the proposed wildlife bridge on Parleys Summit. The bridge is Francisco Kjolseth | The Salt Lake Tribune A wildlife bridge is slated to be built over I-80 at Parleys Summit, a notorious spot f