Building the bridge underpass on Hwy 21 is one of many efforts across North America to reduce the number of vehicle and wildlife collisions.

The body of work focused on providing safe passage for wildlife in and around roadways is growing every year. The following web sites provide a place to start learning more about what is being done to protect people and to protect wildlife.

Safe Passage was written for engineers, biologists, and conservationists in the Western United States and Canada who are working in the field on wildlife crossings on a day-to-day basis.

Span bridge on Colorado I-70

Native Ecosystems is dedicated to conserving and recovering native species and ecosystems of the Greater Southern Rockies using the best available science.

The Road Ecology Program seeks to provide national leadership in understanding the interaction between roads, natural resources, and the environment. We strive to develop and implement solutions through research, education, outreach, and communications.

Digital rendering of proposed wildlife bridge - © Digital Animation Services

Center for Transportation and the Environment focuses on protecting the environment and improving transportation.

Center for Transportation and the Environment chronicles several wildlife crossing structures, many of them located in Canada

Parks Canada – Banff National Park – In response to high and rising traffic volumes, sections of the Trans-Canada Highway (TCH) have been upgraded from a two-lane to a four-lane divided highway in Banff National Park.  To reduce the negative impacts of a larger highway on wildlife populations in Banff National Park, numerous overpasses and underpasses have been installed.

Critter Crossings describes transportation’s impacts on wildlife and highlights exemplary projects and processes that are helping to reduce these impacts.

Underpass in Montana

The former rail underpass in Montana provides adequate space for large animals to cross below the highway.

Federal Highway Administrationprovides examples of how transportation agencies are reducing highways’ impact on wildlife and fish. This website developed by FHWA highlights more than 100 success stories form all 50 states.

CorridorDesignOur goal is to transfer everything we’ve learned about designing wildlife corridors to the general public to facilitate better conservation, science and dialogue.

TransWild Alliance – Several conservation advocacy organizations are working to protect wildlife and natural resources from the impacts of highways and associated development. The TransWild Alliance merely provides the means for these groups to communicate, coordinate and support one another through this partnership.

Beier Lab of Conservation Biology & Wildlife Ecology – Every project in this lab promotes wildlife conservation.

The Western Governors’ Wildlife Council was created in June 2008 to coordinate and oversee implementation of the recommendations made in WGA’s Wildlife Corridors Initiative Report.