February 13, 2017
Lake water flows over the emergency spillway, bottom left, at Lake Oroville for the first time in the nearly 50-year history of the Oroville Dam Saturday, Feb. 11, 2017, in Oroville, Calif. The dam opened in 1968. (Randy Pench/The Sacramento Bee via AP)
OROVILLE, Calif. — Nearly 200,000 people who were ordered to leave their homes out of fear that a spillway could collapse may not be able to return until the barrier at the nation’s tallest dam is repaired, a sheriff said Monday.