All but the left hand lane were closed at North Towne Avenue in Claremont. AIR7 HD captured what appeared to be an Amazon Prime truck on its side.
The traffic backup could be seen out of Rancho Cucagmonga.
Alternate route for drivers were Base Line Road or Foothill Boulevard to the south of the freeway.
All lanes were reopened shortly before 8 a.m.
SIGALERT: WB I-210 AT TOWNE AVE, ALL LANES BLOCKED FOR UNKNOWN DURATION DUE TO AN OVERTURNED BIG RIG COLLISION— CHP PIO - LA County (@CHPsouthern) November 4, 2019