Waxad qortaa sii wadida faqradahan-- Sanadkii 1971, subaxdii dhulgariirkii Sylmar
, dadka deggan Granada Hills, Northridge, North Hills, iyo Van Nuys oo ku noolaa inta udhaxeysa Balboa Boulevard iyo San Diego Freeway ayaa laga daadgureeyay ka dib markii ay ku dhowdahay in la jabiyo biyo xireenka Lower Van Norman. Si kastaba ha ahaatee, daadadkii weynaa ee ku soo rogmaday xeebaha Bull Creek ayaa la joojiyay.