Survey Finds Wildlife Have Preferences For Crossing Highway

Mar 16, 2017

Aerial photo of the 2015 Guadalupe on the Coronado National Forest
Credit Coronado National Forest

It turns out that some types of wildlife like to go over a state highway, others tend to go under it and still others can go either way.

Those are initial results of a survey of camera-monitored usage of a new $9.5 million wildlife crossing of State Route 77 near Oro Valley in northeastern Pima County.

Deer overwhelmingly preferred the crossing's overpass while javelin and bobcats preferred the underpass, with only a few going for the overpass.

Roughly two-thirds of the coyotes went for the underpass while the remaining third opted for the overpass.

The crossing project is a partnership of the Arizona Department of Transportation and the Regional Transportation Authority.

It's an attempt to reduce roadkill and to promote wildlife connectivity between the Santa Catalina and Tortolita mountains.