UPDATE (9/4): According to the California Highway Patrol the Southbound I-5 is now open. Expect heavy traffic.
BAKERSFIELD, Calif. (KGET) — Southbound Interstate 5 is currently closed at Grapevine Road due to a multiple vehicle traffic collision blocking lanes. A tweet from Caltrans District 6 says the smoke is causing zero visibility. There is no estimated end time.
We will update as we learn more.