Sig Alert, I-210, Rialto 6:23 a.m.

A box truck overturned on the eastbound 210 Freeway east of Riverside Avenue, blocking the carpool and fast lanes at 5:57 a.m. The driver was not injured, but a heavy-duty tow truck was needed to upright the truck. The Sig Alert was expected to last up to an hour. Update: The freeway was reopened at 10:10 a.m.