Rubuta ci gaba ga wannan sakin layi - A 1971, da safe na Sylmar girgizar kasa
, mazaunan Granada Hills, Northridge, North Hills, da Van Nuys waɗanda ke zaune tsakanin Balboa Boulevard da San Diego Freeway an kwashe su bayan da Lower Van Norman Dam ya kusan fashewa. Duk da haka, an hana ambaliyar ruwa mai girma a bakin Bull Creek.