Evacuations ordered below damaged California dam
At least 130,000 people were asked to evacuate low levels of Oroville, California, and several areas downstream from Lake Oroville on Sunday because of erosion on the Oroville Dam's auxiliary spillway.
Lake Oroville is one of California's largest man-made lakes, and the 770-foot-tall Oroville Dam is the nation's tallest.
The evacuation was ordered Sunday afternoon over concerns the dam's emergency spillway could fail.
State authorities and engineers on Thursday began carefully releasing water from the Lake Oroville Dam some 65 miles (105 km) north of Sacramento after noticing that large chunks of concrete were missing from a spillway.
The earthfill dam is just upstream and to the east of Oroville, a city of more than 16,260 people.