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.
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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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