DIAMOND BAR, Calif. --An overturned big rig caused major delays on two freeways in Diamond Bar on Thursday morning.The traffic collision was reported at 5:10 a.m. on the 60 West at Grand Avenue.
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The accident was located where the 60 West and the 57 South share the freeway, causing congestion on both freeways.
The big rig was blocking all lanes of traffic at one point, but authorities were able to drag the truck to the shoulder.