The flooding was initially reported shortly after 4 a.m. and eventually spread to block all but the far left southbound lane, CHP officials said.
Caltrans crews responded and helped to remove the water from the roadway and all lanes had opened by 8:30 a.m.
CHP officials did not say what caused the flooding, but it happened in the same area where a blown fuse at a pump house near the highway caused flooding early on the morning of May 16.
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