This, and bigger problems, can easily be diverted by a few pumps and huge hoses / tubes. Takes gravity, will, knowhow and a little work.
From FoxNews
At least 188,000 people were asked to evacuate their homes in Northern California after authorities warned an emergency spillway in the country’s tallest dam was in danger of failing Sunday and unleashing uncontrolled flood waters on towns below.
Lake Oroville, about 150 miles northeast of San Francisco, is one of the state’s largest man-made lakes, and the 770-foot-tall Oroville Dam is the tallest in the U.S.
Sunday’s evacuation order came because of concerns the dam’s emergency spillway could fail. Over five hours later, hundreds of cars carrying panicked and angry people were sitting in gridlocked traffic.
“The police came and told us to evacuate,” said Kaysi Levias who was with her husband, Greg, at a gas station as they attempted to flee.
Officials warned residents that the spillway could fail within an hour.
“I’m just shocked,” Greg Levias said. “Pretty mad.”
“Not giving us more warning,” said Kaysi, finishing his sentence.
“We’ve never been through this before,” said Kaysi Levias. “We have two boys and our dog. All the stuff we could fit in the trunk — clothes and blankets.”
“This is very serious” California Department of Forestry and Fire Protection spokesman Scott McClean told the SF Gate as he was stuck in massive amounts of traffic. “I’m just trying to get through traffic.”
What they couldn’t fit they piled as high as they could in their downstairs Yuba City apartment and joined the line of traffic attempting to leave the city where they had moved just three weeks ago.
You can read more here
Ref.: http://truthfeed.com/breaking-oroville-dam-on-verge-of-collapse-188000-ordered-to-evacuate/51706/