SoCal is in the middle of a wave of infrastructure projects, from major transit upgrades to public space improvements. While many are focused on easing congestion and making it safer for people to get around, some are also designed to protect the region’s wildlife.
One of the most ambitious examples is the Wallis Annenberg Wildlife Crossing, a landmark project that will reconnect habitats divided by the 101 while helping reduce wildlife-vehicle collisions. This week, drivers traveling through Agoura Hills should plan ahead, as construction at the crossing will temporarily affect access to the freeway.
What drivers need to know about this week’s 101 closure
The main impact this week is the northbound U.S. 101 on-ramp at Liberty Canyon Road, which will be closed daily from Monday, Aug. 3 through Friday, Aug. 7, between 9 AM and 3 PM while crews carry out construction activities.
Outside of the scheduled closure window, traffic is expected to operate as usual. As always, construction schedules may change depending on weather or operational needs, so drivers should allow extra travel time if passing through the area.
About the world’s largest wildlife crossing
The Wallis Annenberg Wildlife Crossing is set to become the largest wildlife crossing of its kind in the world. The $114M vegetated bridge measures approximately 210 feet long and 174 feet wide, creating a natural corridor that will allow mountain lions, bobcats, deer, coyotes, gray foxes, and other wildlife to safely move between the Santa Monica Mountains and the Simi Hills.
The bridge spanning the freeway was completed during the project’s first construction phase in 2025. Crews are now finishing the second and final phase, which includes extending the crossing over Agoura Road, restoring surrounding habitat, relocating utilities, and completing extensive landscaping to help the structure blend into the ecosystem.
Construction is expected to wrap up this fall, bringing the long-awaited crossing one step closer to welcoming its first four-legged visitors while making one of SoCal’s busiest freeways safer for both wildlife and the roughly 300,000 drivers who use it every day.
