The National Park Service researched transportation infrastructure's effect on wildlife habitat. The 101 Freeway creates a barrier that isolates animal populations within the Santa Monica Mountains.
The Wallis Annenberg Wildlife Crossing was developed to restore habitat connectivity across the ten-lane freeway and an adjacent access road at a location where protected lands exist on both sides of the corridor.
The crossing spans US 101 and an adjacent access road to reconnect habitat on opposite sides of the corridor.
Cefali & Associates provided temporary earth shoring design at the base of the site during early construction, allowing bridge and abutment work to proceed before the southerly earthwork was complete.
The services were performed for the general contractor, C.A. Rasmussen, and the shoring was installed by Malcolm Drilling.
The shoring design used Caltrans available beam supply and allowed height to be added to the top of the shoring as grading operations backfilled a slope up to the abutment level.
