View Roadkill Hotspot Maps
Summer is here and wildlife are on the move across our valley!
Wildlife-Vehicle Collision Hotspot Maps for Teton County
The maps indicate where wildlife-vehicle collisions involving elk, moose and deer most frequently occurred between 2011 and 2022. Roadkill data used for maps is a combination of Nature Mapping Jackson Hole observations and carcasses recorded by the Wyoming Department of Transportation and the Wyoming Game and Fish Department.
READ THE MOST RECENT WILDLIFE-VEHICLE COLLISION REPORT SUMMARY
*Due to exclusionary fencing and wildlife-underpasses installed on S. Highway 89 between 2018-2022, we anticipate hotspots shown between Hoback Junction and Rafter J may be weighted by more frequent collisions (especially with mule deer) prior to the construction of these mitigation measures. Early data indicates collisions on this stretch of highway have been reduced by at least 30% in recent years.
Test Your Wildlife-Vehicle Collision Knowledge
How many moose are in Jackson Hole?
volunteers counted 240
Wyoming Game and Fish Department and Jackson Hole Wildlife Foundation volunteers surveyed 240 moose in Jackson Hole in 2021. The Jackson Moose Herd has dwindled by 70% over the last 30 years.
How many moose are killed by vehicles in Teton County year?
This does not include animal-vehicle collisions that go unreported and does not include moose-vehicle collisions in Grand Teton National Park.
What is the cost to the driver and the community when a moose
This cost includes vehicle repair costs, human injury/fatality costs, towing, accident attendance and investigation, the animal’s value, carcass removal and disposal costs. This financial estimate was made in a Report to Congress in 2008; costs are likely much higher now.
What is the likelihood of human death in traffic accidents involving moose compared to accidents with deer?
Traffic accidents involving moose are 13 times more likely to result in a human death than crashes with deer.
What are statistically the worst months in Teton County for wildlife-vehicle collisions?
What is the worst day of the year in the United States for wildlife-vehicle collisions?
The end of daylight saving time (first Sunday of November).
- Ungulates (hoofed mammals like deer, elk and moose) are migrating to winter ranges, often crossing roads in the process
- Ungulates are being hunted in much of the country which can lead to distracted behavior as they try to evade hunters
- Ungulates are mating which can lead to distracted behavior as they pursue mates
- Peak commuter traffic times change in most states by one hour (“fall back”); believe it or not, animals adapt to our peak traffic times by avoiding them and when we change them overnight they are not able to adapt to the immediate shift
Learn more about our Give Wildlife a Brake projects
Fixed Radar Speed Signs
We have installed five fixed radar speed signs on WY 390 – an area of frequent wildlife movement near the vital Snake River corridor – to alert drivers when they surpass the posted day/night speed limits.
Financial support from the Community Foundation of Jackson Hole, Teton Conservation District and private donors has enabled us to purchase this series of fixed radar signs and gift them to Wyoming Department of Transportation and Teton County.
Camera Traps Show Wildlife Movement in Crossing Areas
The images also help to educate the public about the importance of removing barriers to wildlife movement while providing more information for future transportation planning and large landscape connectivity discussions.
Dynamic Message Signs
Dynamic message signs alert drivers to slow down in critical wildlife crossing areas. Their portability allows us to work with the Wyoming Department of Transportation to relocate them periodically to ensure that the signs coincide with the most current wildlife movement patterns and potential conflict zones. With thanks to generous individual donors such as the late Uta Olson, we have been able to purchase and deploy 7 dynamic message signs ($17,500 each).
Moose Ramp Plow-Outs
In 2019 and 2020, we worked with local property owners and Yellow Iron Excavating to plow snow on Fish Creek Road to create “moose ramps,” which allow moose to leave the roadway when snowbanks get deep. Due to the high amounts of snow these roads receive, snowbanks can be a major problem when they grow so tall they confine moose to the road.
Jackson Hole Wildlife Foundation
25 S. Willow St., Suite 10
Jackson, WY 83001
PO Box 8042
Jackson, WY 83002
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