Posted on September 30, 2016

Yellowstone Completes Phase II of Project to Install Advanced Eco-Friendly Pavement in Walkways around Old Faithful Geyser


Michelin Tires Recycled for Novel Paving Material that Helps Protect World’s Largest Geyser Ecosystem

GREENVILLE, S.C., Sept. 29, 2016 — Yellowstone National Park has completed the second phase of its initiative to install more eco-friendly walkways in the world’s largest concentration of geysers and thermal features. With help from the Michelin Corporate Foundation, Yellowstone National Park recently finished replacing 4,160 square feet of crumbling asphalt paths with walkways made from innovative eco-friendly paving material that is manufactured in part from recycled tires. This new material will help reduce run-off and erosion in the eco-sensitive Yellowstone Geyser Basin, which features the iconic Old Faithful geyser and attracts millions of visitors a year.

The initiative replaces aging asphalt with KBI Flexi®-Pave. This product provides a porous, durable and flexible surface that allows the water from rain and snow to percolate through the walkway the way it would have done before the walkways were installed, and in turn creating more natural water patterns that eventually replenish the geyser basin. Unlike asphalt, this paving material does not create significant storm-water runoff or leach pollutants into the soil. It also does not break apart, which prevents material from ending up in geysers and hot springs.

This second phase of the project used a total of 1,536 end-of-life tires to help create thousands of square feet of paths. Most of these tires were originally donated several years ago by Michelin for use on Yellowstone’s more than 800 fleet vehicles and commercial equipment. Michelin has been a Yellowstone Park Foundation corporate partner since 2008.

“The Yellowstone Walkways Project aligns with Michelin’s commitment to being a global leader in sustainable mobility,” said Leesa Owens, director of community relations for Michelin North America. “Our employees have been involved with this project from the start, working directly to help create environmentally friendly walkways out of Michelin tires that had already provided Yellowstone with years of cost-effective and fuel-efficient operations.”

Flexi-Pave is made of rubber granules and stone held together by a polymer binding agent that is inert when cured. Its open-pore design enables fast evacuation of up to 4,000 cubic inches of water per hour. Beyond Yellowstone, this innovative product has a broad range of applications. The thousands of rubber granules making up its surface make it non-slip and it is an ADA-compliant surface accessible to wheelchairs and walkers. The integrity of the materials are not affected by freeze-thaw conditions which is why it works well in cold and snowy parts of the Northeastern and Midwestern United States.

“Helping to create a next-generation trail system in Yellowstone National Park is very gratifying,” said Kevin Bagnall, CEO and founder of KBI. “Flexi-Pave not only provides an environmentally friendly solution for the Old Faithful area, it prevents thousands of old tires from ending up in a landfill or being burned for fuel.”

The project was made possible through a partnership between Yellowstone National Park, park concessioners, the Yellowstone Park Foundation, KBI Industries and the Michelin Corporate Foundation.

“Yellowstone is the world's first national park with nearly 150 years of balancing the protection of natural wonders and sharing them with visitors,” said Lynn Chan, a landscape architect for the National Park Service and lead on sustainability at Yellowstone National Park. “It is important to us to rehabilitate the park’s walkways with materials that can help protect this sensitive environment yet still allow visitors to see and appreciate it.”

“This project represents the model for collaboration between public and private organizations. We hope that this eco-friendly park walkway will inspire other similar projects that help preserve natural systems,” said Jeff Augustin, vice president of external partnerships at Yellowstone Park Foundation.


About Michelin North America

Michelin, the leading mobility company, is working with tires, around tires and beyond tires to enable Motion for Life. Dedicated to enhancing its clients’ mobility and sustainability, Michelin designs and distributes the most suitable tires, services and solutions for its customers’ needs. Michelin provides digital services, maps and guides to help enrich trips and travels and make them unique experiences. Bringing its expertise to new markets, the company is investing in high-technology materials, 3D printing and hydrogen, to serve a wide variety of industries — from aerospace to biotech. Headquartered in Greenville, South Carolina, Michelin North America has approximately 22,500 employees and operates 34 production facilities in the United States and Canada. (