A motorcylce crash was blocking all lanes of the eastbound 210 Freeway in Glendora Friday afternoon, according to the California Highway Patrol.
A motorcycle hit the back of a vehicle at about 2:45 p.m. on the freeway near 57 Freeway, the CHP said.
One person was taken by helicopter to a trauma center, the Los Angeles County Fire Department said.
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The roadway was cleared at 3:15 p.m., accoridng to the CHP.