In Michigan in 2007, there were 61,907 reported vehicle-deer crashes with 11 motorist killed. About 80 percent of all car-deer crashes take place on two-lane roads between dusk and dawn. Vehicle-deer crashes are costly. In Michigan, vehicle-deer crashes cost at least $130 million per year; the average insurance claim is about $2,100 in damage, usually to the front of the vehicle, which often leaves it undriveable.
Other states have similar issues with wildlife crossing roads and then causing accidents. In response New Mexico has successfully tested an underpass on a busy highway for $750,000. That seems like a bargain price.
See: In New Mexico canyon, a novel way to prevent roadkill
