It’s not often that a hulking piece of infrastructure makes headlines, but the dam at California’s Lake Oroville did just that when it nearly failed last month. Though 180,000 people who were evacuated during the crisis are back home, people are now asking questions about the condition of the nation’s dams. As E&E News’ Jeremy P. Jacobs reports, there’s reason to worry: Nearly 15,500 of America’s dams could cause loss of life if they fail.