#HTE
Water surges and sprays into the air above the broken spillway at Oroville Dam in northern California, USA. Many of you may have seen this story in the news this past week and our friends @nearmap flew above the site yesterday to capture imagery of the area. Here’s a quick summary of what’s going in Oroville: On February 7th, after an extended period of heavy rain, a crater appeared on the dam’s spillway (the structure that enables the controlled release of water from the reservoir above the dam). By February 10, more surging water increased the size of the hole to 300 feet (91 m) wide, 500 feet (152 m) long and 45 feet (14 m) deep. By February 12th, an emergency evacuation was ordered for more than 100,000 residents in low-lying areas beneath the dam. Now, with more rain forecasted for the coming week, there is a significant construction effort underway to reinforce the dam’s emergency spillway. Costs to fully repair the damage have been estimated at $200 million.
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