From our senior P Von Soucek, our senior East Coast correspondent:

A sinkhole caused by storm runoff opened up on the San Diego (405) Freeway in Hawthorne today, prompting lane closures expected to last until around midnight.

The damage to the freeway’s northbound and southbound carpool lanes in the area of West 135th Street was reported at 11:37 a.m., according to the California Highway Patrol.

The sinkhole, 15 feet deep with a 10-square-foot opening, was discovered by a Caltrans sweeper crew member, said Caltrans spokesman Patrick Chandler.

It was on the approach to a bridge spanning 135th Street, he said.