Sig Alert, 10 Freeway, debris spill, Ontario 1:12 p.m.
A Sig Alert has been issued for the eastbound 10 Freeway just west of Vineyard Avenue. The #3 and #4 lanes are closed because of a debris spill. Clean up crews are on scene but the traffic backed up to at least Towne Avenue in Pomona.
The Sig Alert may last several hours, according to information from the California Highway Patrol.



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