Project details, cost, and December 2026 opening timeline
The Agoura Hills Wildlife Crossing, officially known as the Wallis Annenberg Wildlife Crossing, is a groundbreaking infrastructure project designed to restore wildlife connectivity across one of Southern California’s busiest highways. Spanning the US-101 Freeway at Liberty Canyon, this crossing is expected to open in December 2026, marking a major milestone in conservation efforts across the region.
Image Credit: Google Earth
Construction on the Agoura Wildlife Crossing began in 2022, with the goal of creating a safe and natural passageway for wildlife moving between the Santa Monica Mountains and the Simi Hills. For decades, the 101 Freeway has acted as a barrier, isolating animal populations and disrupting migration patterns. This project aims to reverse that impact by reconnecting ecosystems that have been divided by urban development.
Once complete, the crossing will be covered with native soil and vegetation, allowing animals to traverse the freeway in a way that closely mimics their natural habitat. The design prioritizes both functionality and environmental integration, ensuring that species ranging from mountain lions to small reptiles can safely use the crossing.
Why the Wildlife Crossing Was Built
The Wildlife Crossing in Agoura Hills addresses a critical environmental challenge: habitat fragmentation. As Southern California has grown, major roadways like the 101 Freeway have cut through natural landscapes, leaving wildlife populations isolated on either side.
This isolation has serious consequences. Limited movement reduces genetic diversity, making species more vulnerable to disease and long-term decline. In the Santa Monica Mountains, this issue has been especially concerning for mountain lions, which require large territories and the ability to safely migrate.
The Agoura Wildlife Crossing was developed to solve this problem by:
- Reconnecting fragmented habitats
- Supporting healthy wildlife populations through improved genetic diversity
- Reducing wildlife-vehicle collisions along the 101 Freeway
- Preserving biodiversity in the Agoura Hills and greater Southern California region
Liberty Canyon was selected due to its natural role as a long-standing wildlife movement corridor in the region, making it one of the most effective locations for a crossing of this scale.
Cost of the Project and Who’s Paying for the Wildlife Cross in Agoura Hills
The Agoura Hills Wildlife Crossing represents a significant investment in environmental infrastructure, with total project costs estimated at over $100 million.
Funding for the project comes from a mix of public and private sources, making it a standout example of a successful public-private partnership.
Key Funding Sources Include:
- Private Contributions: A substantial portion of funding has been provided by private donors and foundations, including a major lead gift from philanthropist Wallis Annenberg.
- State of California Funding: State programs and environmental funding initiatives have contributed to construction and completion costs.
- Local and Federal Support: Additional funding has been secured through conservation grants and regional partnerships.
This blended funding model has helped bring the project to life while reflecting strong support from both the community and conservation organizations.
A Landmark Conservation Project in the 805 Region of California
The Agoura Wildlife Crossing is not only a local project—it is a global model for how urban regions can address environmental challenges. As one of the largest wildlife crossings ever constructed, it showcases how infrastructure can be designed to support both people and the natural environment.
When the crossing opens in December 2026, it is expected to significantly improve wildlife safety and mobility in the region, while also serving as a blueprint for similar projects across California and beyond.
Frequently Asked Questions About the Agoura Wildlife Crossing
When will the Agoura Hills Wildlife Crossing open?
The crossing is planned to open in December 2026, with construction having started in 2022.
Where is the wildlife crossing located?
The crossing is being built over the US-101 Freeway at Liberty Canyon in Agoura Hills, California, connecting the Santa Monica Mountains and the Simi Hills.
What animals will use the crossing?
The bridge is designed for a wide range of species, including mountain lions, bobcats, deer, coyotes, reptiles, birds, and smaller mammals.
How much does the project cost?
The total cost is estimated at over $100 million, making it one of the largest wildlife crossing projects in the world.
Who is paying for the wildlife crossing?
Funding comes from a combination of private donations, State of California funding, and additional public and conservation-based sources.
Why is the Agoura Wildlife Crossing important?
The project helps reconnect wildlife habitats, improves genetic diversity, reduces animal-vehicle collisions, and supports long-term ecosystem health in Southern California.
Where can I learn more about the project?
You can find more details, updates, on the official website.
About Agoura Hills, California
Agoura Hills, California is a scenic city located along the US-101 corridor in western Los Angeles County. Surrounded by rolling hills and open space, the community offers close access to the Santa Monica Mountains and a variety of outdoor recreation opportunities, including hiking, biking, and nature exploration.
Known for its commitment to preserving natural landscapes, Agoura Hills plays an important role in regional conservation efforts. Projects like the Wallis Annenberg Wildlife Crossing highlight the city’s dedication to balancing growth with environmental sustainability, making it a key destination within California’s 805 region.