At least 188,000 urged to evacuate as concerns over California dam increase

At least 188,000 people were asked to evacuate their homes in Northern California Sunday after authorities warned an emergency spillway in the country’s tallest dam was in danger of failing 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. -- More...