A big rig overturned on the 91 Freeway near the 110 Freeway, prompting a SigAlert that slowed traffic in the area Monday morning.
The truck crashed at about 7 a.m. It landed upside-down in the No. 1 lane of the westbound 91 Freeway as it transitions in Artesia Boulevard, just west of the 110 Freeway. The cab ended up on the median wall.
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The ramp from the southbound 110 to the eastbound 91 Freeway was blocked for about 30 minutes.
The driver was hospitalized, but details regarding injuries were not immediately available.