Long, steep slopes along Highway 1 along Big Sur, PCH through Malibu, I-5 through the Grapevine, and SR-1 near Laguna Beach allow rockfall to build energy over hundreds of feet of vertical fall — reaching velocities and impact forces that exceed the capacity of any single containment barrier. Coastal metamorphic rock, Franciscan Complex mélange, and fire-weakened hillsides on these slopes require a system that reduces energy incrementally rather than absorbing the full impact at one point.
Access Limited designs and installs rockfall attenuation systems across California for corridors where fall height and block size combine to produce energy levels that single-barrier solutions cannot handle.
Curtain attenuators consist of mesh panels suspended from horizontal cables across the slope face. Falling rock hits the curtain, transfers energy to the cable system, and drops to the slope surface at reduced velocity — repeating the process through multiple curtain stages.
Hybrid systems combine attenuator curtains on the upper slope with a flexible rockfall barrier at the base — the curtains reduce the energy so the terminal barrier can be sized for practical installation rather than the full unattenuated impact.
With an office in Oceano, Access Limited maintains permanent California-based crews ready for rapid deployment.
See why Caltrans, county public works departments, rail operators, utility providers, and federal land agencies trust Access Limited for rockfall attenuation systems and rockfall mitigation across California.
Access Limited delivers specialized rockfall attenuation systems across California's rockfall corridors. Complete the form to request an assessment or call our team directly.
