Wildlife Crossings as Key Infrastructure

Animal-vehicle collisions cause billions in property damage, hundreds of human deaths, and dramatic losses in animal populations every year. Monitoring migration and building for animals can make roads safer for everyone.

2 minute read

October 6, 2022, 11:00 AM PDT

By Diana Ionescu @aworkoffiction


Writing in Governing, Matt Skroch explains the value of investing in wildlife crossings and other infrastructure projects that help urban and regional planners understand wildlife migration patterns and protect animals from traffic collisions.

According to Skroch, “These accidents lead to some 200 human deaths and 26,000 injuries each year, resulting in more than $8 billion in property damage, health-care costs and lost workdays, according to the U.S. Department of Transportation.” For the animals, and the industries that depend on them, the news is equally bad. “In Wyoming, for example, the mule deer population, which supports more than $300 million in annual hunting-related spending in the state, has decreased by 40 percent since 2000, due in large part to habitat fragmentation caused by roads and development.”

Yet Skroch writes that “Advances in research technology over the past decade have revolutionized experts’ understanding of how wildlife move across landscapes and are now helping to resolve wildlife-vehicle conflicts that are rising due to increased development.” Today, GPS collars and well-placed under- or overpasses can help researchers understand movement patterns and keep animals out of harm’s way.

“In the face of climate change, sustaining these landscape connections is more important than ever, as it helps provide greater ecosystem resilience for species that migrate between habitats,” Skroch argues. Federal officials have taken note. “On the federal level, the Infrastructure Investment and Jobs Act of 2021 includes billions of dollars over five years for wildlife and aquatic connectivity programs, along with $350 million for a new wildlife-crossing construction program.” In Los Angeles, the world’s largest wildlife crossing broke ground earlier this year.

Tuesday, October 4, 2022 in Governing

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

5 hours ago - Zachary Whalen

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

A cluster of wind turbines beneath a stormy sky, above a forest where the leaves are beginning to change colors.

5 New England states march closer to 800 megawatt wind energy project

Securing federal approval for the project may be complicated under the Trump administration, which has historically been hostile towards domestic wind power.

1 hour ago - Inside Climate News

People boarding a bus on Maryland's Orange Route.

Baltimore to break ground on $50 million Transit Priority Project

The project will bring faster bus trips, safer streets and better bike connections to Baltimore.

2 hours ago - Mass Transit

A brick building with a circular sign with the Airbnb logo hanging off of it.

Airbnb launches $250 million 'last-dollar financing' housing accelerator, makes first investment in Austin

The company will put $6.4 million towards affordable housing development in Texas’ capital.

3 hours ago - Smart Cities Dive

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.