🔥 BREAKING: All lanes of westbound I-580 at the Altamont Pass are currently blocked after a big-rig caught fire near Grant Line Road early Friday morning. 🚒 The blaze, which began shortly before 6 am, spread into nearby vegetation, prompting a joint response from Cal Fire and Alameda County Fire crews. ⚠️ Expect major delays in the area and avoid westbound I-580 if possible. We’ll update as the situation develops. #AltamontPass #BigRigFire #CalFire #KPIX #BayAreaTraffic #BreakingNews