There were concerns about the emergency spillway 12 years ago, but the request (to pave the emergency spillway with concrete) was rejected [1]. It was supposed

There were concerns about the emergency spillway 12 years ago, but the request (to pave the emergency spillway with concrete) was rejected [1]. It was supposedly designed to handle 350,000 cubic feet per second, but began to fail at around 6,000 to 12,000 cubic feet per second. [1] https://news.ycombinator.com/item?id=13633395 https://news.ycombinator.com/item?id=13633395