Wallis Annenberg Wildlife Crossing
Design
Design
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In 2015, the Resource Conservation District of the Santa Monica Mountains published a design for a  and  overpass for the wildlife crossing. To encourage use by wildlife, the bridge will have lush but drought\-tolerant vegetation with matte materials to deflect bright headlights and insulation to quiet the roar of cars. Fencing at each end will help funnel them onto the crossing. A second phase of the project will cross a frontage road that is parallel with the freeway.

Landscaping of the nearly  includes  of habitat restoration in the area. The restoration is partially needed because the 2018 [Woolsey Fire](/wiki/Woolsey_Fire "Woolsey Fire") burned through the wildlife corridor as it was pushed by strong [Santa Ana winds](/wiki/Santa_Ana_winds "Santa Ana winds") in a southerly direction, and crossed the freeway in this area.

The [draft environmental document](/wiki/Environmental_impact_assessment "Environmental impact assessment") was released in 2017\. A tunnel was considered as an alternative, but it would be less able to attract usage by wildlife and wouldn’t sustain vegetation. The [California Department of Transportation](/wiki/California_Department_of_Transportation "California Department of Transportation") (Caltrans) oversaw design and construction as it crosses a major transportation route.


Who oversaw design and construction of the bridge?