What is the reason why CA 125 ending at a local roadway instead of CA 905? Also why is there a very short freeway spur of CA 905 called CA 11? CA 11 is nothing more than a glorified freeway ramp.
The CA 125/905 interchange is still unfinished. When it's done, there will be a complete connection between the two freeways and with the new CA 11 freeway.
As for CA 11, it is being extended to a new border crossing east of the CA 905 crossing. This won't be the first time that a low route number once used for a freeway in the Los Angeles area was recycled for a short border crossing highway -- that happened with CA 7, now east of Calexico.