The 101 Wildlife Crossing Opens Dec. 2, and Agoura Hills Will Watch It From a Ranch in Calabasas

For four years, anyone driving the 101 through Liberty Canyon has seen the Wallis Annenberg Wildlife Crossing take shape overhead. On Wednesday, Dec. 2, it opens. Hardly anyone from Agoura Hills will be standing on it, and that will stay true afterward.

The Acorn reported that the crossing will be dedicated with a public celebration at King Gillette Ranch, followed by a ribbon-cutting at the structure over U.S. Highway 101. The paper described the project as more than three decades in the making. The ribbon gets cut in Agoura Hills, and the community party is held at the ranch on Mulholland Highway in Calabasas, where the public watches the ceremony on a large screen. That arrangement follows from a decision made years ago about who the bridge is for.

The bridge was never designed for people

The project's own crossing FAQ answers the question most neighbors eventually ask:

"During the public engagement process, the community heavily supported planning that would allow wildlife every opportunity for safe passage, and it was decided that there would be no trails or public access."

So the structure spanning eight lanes of freeway will have no trail on it, no overlook and no opening-day walk across. The same FAQ says the crossing "will be seen along the recreation trails that are in the area, and a viewing platform will be built to facilitate optimal viewing." The FAQ gives no date for that platform. For now, residents will see the crossing from below on the freeway and from the trails on either side of it.

That explains the opening-day plan. A ribbon-cutting on a bridge closed to the public can host a small group of partners at the structure and very few others. Everyone else is invited to a festival set up for watching.

What a ticket to the celebration gets you

The Save LA Cougars ribbon-cutting page lists two events on Dec. 2. Only one of them is open to the general public.

Here are the details that matter if you plan to go:

• Tickets are required for entry. The money supports the National Wildlife Federation's #SaveLACougars campaign.
• Groups can ask about pricing. Schools and other groups may qualify for group rates or scholarships by emailing [email protected].
• It runs rain or shine. The organizers say there will be no cancellations or refunds and the event goes on in rain or other bad weather.
• You can also watch from home. The ceremony will be livestreamed online, according to the organizer and LAist.

Dec. 2 falls on a Wednesday. Families planning around school pickups will want to remember that the festival runs midday.

The rain clause in the plan

The no-refund policy covers the party, and the bridge still has to be finished. In October, Spectrum News 1 reported the project on track for Dec. 2 and named heavy El Niño rain and possible flooding as the risk to that date. The crossing has missed a deadline because of weather before. The FAQ says it was originally scheduled for completion in 2025, but record precipitation and flooding slowed work two springs in a row, and crews had to wait for the site to dry out after each major storm.

In the same Spectrum report, Beth Pratt of the Wildlife Crossing Fund said, "We are cutting the ribbon in 54 days," and described the crossing as four projects in one. One is the main structure over the 101. Another is the utility work, where several agencies moved electrical transmission lines underground and rerouted a water main. The third is the smaller two-lane bridge that carries animals over Agoura Road, which is now in place. Spectrum reported that the final work was joining those two bridges and moving about 3 million cubic feet of soil back into the space between them.

That soil work is the last piece needed to make the two structures one continuous path for wildlife, and it is the work most affected by wet weather.

What's growing on top

The soil also has to support a native plant community. The Acorn reported that nearly an acre of native vegetation has already been planted on the freeway bridge. Plans call for 50,000 more native trees, shrubs and perennials across about 12 acres.

Those plants started on site. The FAQ says Living Habitats worked with Caltrans and the National Park Service to collect seeds, acorns and mushrooms, and a project nursery was built in 2022 to grow much of the planting stock. Native oak and willow trees sourced from the site are part of the plan, along with mycorrhizal fungi collected locally and reintroduced into the new soil.

The FAQ also says some planting and finishing work will continue after the Dec. 2 opening. The crossing that opens next month will keep filling in after the ceremony. The project expects wildlife to start using it almost immediately, and the FAQ presents that as a prediction.

Agoura Road between now and then

The part of the project residents deal with most is Agoura Road, and its schedule has shifted repeatedly this fall. As of publication, Caltrans' SoCal511 project notice includes several layers of updates:

1. The weekday closure window. Caltrans scheduled a full closure of Agoura Road between Rondell Street and Hydepark Drive from Wednesday, Sept. 16, through Monday, Nov. 30, Monday through Friday, 7 a.m. to 5 p.m. No motorists, cyclists or pedestrians may pass through during work hours.
2. The cancellations. Closures scheduled for Oct. 15 through Oct. 30 were cancelled so Liberty Canyon ramp work could proceed, and a later Liberty Canyon ramp closure on Oct. 30 was cancelled in turn to make room for an Agoura Road closure.
3. The current status. The most recent update says Agoura Road is open to through traffic, with intermittent closures possible as work continues.
4. The shuttle. The free pedestrian and cyclist shuttle between Dorothy Drive at Chesebro Road and Liberty Canyon at Agoura Road is suspended while the road is open. It is expected to resume if closures return.
5. The ramps. The northbound on-ramp and southbound off-ramp at Liberty Canyon Road may still close periodically, but Caltrans says the ramps and Agoura Road will not close at the same time.

When the ramps are closed, Caltrans routes northbound drivers south on Liberty Canyon, west on Agoura Road and north on Chesebro Road/Palo Comado Canyon Road to reach the freeway. Southbound drivers continue to the Lost Hills Road exit. When Agoura Road is closed, the detour runs on the 101 between Chesebro and Liberty Canyon. All of these closures depend on the weather and can change, so check SoCal511 or Caltrans District 7 on the day you drive.

On the freeway itself, the FAQ says no full closures are expected. A few overnight closures, one direction at a time, may happen between midnight and 5 a.m., with traffic detoured onto Agoura Road.

Seeing it after the ribbon is cut

After Dec. 2, the trails are where residents will see the crossing. During construction, the FAQ says the trailhead on the north side generally stays open but may close at times for safety, with advance notice whenever possible. On the south side, trailhead parking on Agoura Road is unavailable whenever the road is closed. Until Caltrans finishes its work, the Agoura Road closure schedule also determines when you can park at the south-side trailhead.

Dog owners walking these trails should keep the project's coexistence guidance in mind. It recommends keeping pets on leash on trails and supervising them outdoors. That guidance will matter more once the crossing is doing its job and drawing animals onto the slopes on both sides of the freeway.

The viewing platform described in the FAQ is meant to give the public a dedicated place to see the bridge. Until it is built, Agoura Hills' best-known new landmark is something residents see from the trails nearby, from the freeway below, and on Dec. 2, on a screen at King Gillette Ranch.

The crossing is now a permanent part of the Liberty Canyon view. If you live near it and want to know how that view affects your home's value, The Arledge Group can help. Request Your Home Valuation, and we'll walk you through what nearby homes have sold for, using the local knowledge we've built over decades in the Conejo Valley.