June 2021 Incident Report for SR-27 For Topanga Canyon Boulevard from two-mile bridge to LA city limits (Cezanne Avenue), the CHP responded to one traffic collision with property damage only. The primary factor was “unsafe turning” (22107 VC). In comparison, there were four traffic collisions for the same reporting period in 2020. For Topanga Canyon Boulevard from two-mile bridge to PCH, the CHP responded to two traffic collisions, one was an injury collision and one was a property damage only collision, due to “unsafe speed” (22350 VC) and “crossing double yellow lines” (21460 VC). In comparison, there were eight traffic collisions for the same reporting period in 2020. To report unsafe driving behaviors in Topanga and the Santa Monica Mountains, please call CHP dispatch at (323) 259-3200.