The hazmat team is investigating a roof collapse at a manufacturing lab off of Ringwood Avenue in San Jose.
PHOTOS: Rain, storms hit Bay Area during 2016 El Nino season
Firefighters believe the weight of the rain caused the roof to cave in as employees were working. Everyone was able to get out safely, but they won't be able to go back today.
After the hazmat team concludes their work, a construction crew will go in to asses the damage and to determine what type of work will be need to repair the damage.
"There are some chemicals on scene we want to evaluate before we clear the building," said Battalion Chief Angela Jacobson with the San Jose Fire Department.
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For firefighters, the overnight rain kept them busy with dozens of calls all throughout the South Bay.
"We have a lot of weather related things going on, wires down, we've got accidents , we've got rescue responses," explained Jacobson.
During the morning commute, the Alameda off-ramp on northbound 880 in San Jose also reopened after being closed for several hours due to heavy flooding.
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On the Alma Bridge Road in Los Gatos, the rain caused a rock slide.
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The Alameda off ramp re-opens after being closed early this am due to heavy flooding check out b4 n after pics pic.twitter.com/KXWlpOgUq8— Janet O (@JanetONews) March 7, 2016
Looks like solo crash on 17 in Los Gatos due to slick roads saw lots of run off in area pic.twitter.com/k2eveOMfrH— Janet O (@JanetONews) March 7, 2016
Office building on ringwood closed after roof collapsed potentially due to rain . Hazmat team will asses damage pic.twitter.com/0Oz80wgoSy— Janet O (@JanetONews) March 7, 2016
Lexington reservoir look how much it filled up! pic.twitter.com/JFoUu4ubrM— Janet O (@JanetONews) March 7, 2016
Look at the water gushing out into Lexington Reservoir pic.twitter.com/bpi2BedvZ3— Janet O (@JanetONews) March 7, 2016