Here is a recent article from a Utah Newpaper based on research by UDOT and some researchers at Utah State University. I worked for a lady that did a radio collar study on mule deer in Northern Utah and more than 50% of her deer mortalities were from vehicles. Most of these were does and fawns too, the segment of the population that is most important for maintaining/growing the deer population. I really think we need to find more effective ways to reduce deer vehicle collisions, they are killing lots more deer than we realize.
Deer most likely to be hit on U.S. 89 in Utah
BY BRYCE PETERSEN JR.
Standard-Examiner staff
[email protected]
LOGAN ? Two stretches of U.S. 89 in the Top of Utah rank as the state?s most dangerous for deer. And more deer are hit this month than any other, as they migrate lower to search for winter food.
It's a good time to pay attention to those yellow signs painted with the silhouette of a leaping deer. But if those have already blended into the background on your favorite route, watch for something more noticeable: Coming soon, large, portable, electronic signs flashing warnings in some of the most common places where deer migration routes cross busy roadways.
The signs debuted near Mantua this spring, when deer were headed to high summer range. They?ll be back very soon, along with such a sign near Perry, as deer begin following the snowline to winter range, said Darin Duersch, traffic engineer for UDOT?s Region 1.
A Utah Department of Transportation report ranks a stretch of U.S. 89 two miles south of Brigham City as the most likely spot in the state to hit a deer. A close second is U.S. 89 where it passes from Fruit Heights through Kaysville and into Layton.
Those are the worst spots on long, dangerous segments of the road as it funnels 55 mph-or-faster traffic along benches full of orchards and alfalfa fields ? tasty lures that can be deadly to deer and humans.
Slowing down
Noticeable signs top the list of short-term fixes to dangerous junctions of wildlife and human traffic, said Patricia Cramer, a Utah State University researcher.
?That's one thing we can do tomorrow, is get the word out to people ? 45 mph is key. If you can get people to slow down, that's a big help,? Cramer told an audience at USU last week. ?Most accidents would be prevented if people just slowed down.?
Cramer had just spent an hour showing slides and statistics on new ways highway departments are keeping apart cars and deer ? which make up about 95 percent of wildlife collisions. Deer-proof fences that funnel animals to underpasses and escape ramps that allow deer to get back off the road after they've breached deer-proof fences are examples.
Those things, unlike cautious drivers, take money and a commitment from people who build roads.
?You think about the human cost. It's very easy to justify these things over time,? said John Bissonette, a research ecologist with the U.S. Geological Survey and a professor in Utah State?s Department of Forest, Range and Wildlife Sciences.
Vehicles damaged
There are about 2,200 deervehicle collisions a year that injure a human or cause at least $10,000 of damage to a vehicle. That likely represents a fraction of deer deaths. One estimate, based on roadside counts in central Utah, puts the figure around 8,000 collisions a year. It could be twice that ? a figure that would approach the estimated 23,000 deer that die annually from legal hunting ? if studies suggesting as many as half of deer struck by cars wander off the road before they die are to be believed.
In the northern region, the Division of Wildlife Resources has responded to an average of 625 dead or injured deer a year over the last three years, an effort that takes about 313 hours and $1,800 in landfill fees a year.
Bissonette, who coordinates a team of students, professors and other researchers ? including Cramer ? studying the topic, has been trying for years to convince transportation officials that the cost of building alternate ways for deer to cross highways is worth it.
It's working, to a point.
New approach
Paul West, a wildlife biologist for UDOT, compiled an analysis of wildlife migration routes across Utah?s highways. The analysis, released in June, is already being used to correct some of the most pressing problems, mostly during improvements of major highways.
?Every project that UDOT has has to go through my scrutiny,? West said.
That doesn't mean every wildlife hazard is taken care of as part of every construction project. Budget constraints still modify, or kill, some additions.
?We could probably spend our entire road budget on wildlife issues and not solve them all,? West said.
But the issues are being considered, and earlier than ever. West noted that engineers are starting to come to him years before a project to look at needs on the route.
For instance, an underpass, designed by USU researchers and put in during a 2004 construction project, allows deer to cross Interstate 15 just south of its junction with Interstate 70. That dropped deer deaths from as many as 125 a year to ?almost zero? just months after it was completed, Bissonette said.
West notes that elk, which are less comfortable with even short tunnels, are not responding as well; they seem to have moved their crossing farther south and are being hit at a similar rate.
USU researchers and Division of Wildlife personnel are involved in the earliest planning stages of a 20-year widening project on U.S. 6 between Price and Spanish Fork. They are identifying critical areas and designing fences and bridges to allow wildlife crossings without breaking the budget.
?It just makes me happy to see some things happening,? Bissonette said. ?I've been working on this since the late 1980s, and it's just in the past three or four years that we've really started seeing some results. ... It's a changed world.?