According to records from the California Highway Patrol: There have been 4 Bike vs Vehicle Collisions from 2012 to 2022. The CHP has jurisdiction to investigate collisions on the roads within the Diablo Community Services District and to complete the Traffic Collisions Report. One of the Collisions is still classified as a "Hit & Run Felony"and the driver has not been found (below). "There have been several bike vs vehicle collisions at the intersection of Alameda Diablo, El Nido, and Calle Los Callados." According to a Alameda Diablo Resident who has lived near the intersections for 35+ years.  According the the CHP, the 4 collisions were the fault of the motorist and resulted in injuries to the cyclists. 

DIABLO RD&ALAMEDA DIABLO 2015:03:14
ALAMEDA DIABLO 2018

ALAMEDA DIABLO & EL NIDO