Glory Hole in Monticello Dam Napa County, California, United States - is used when a dam is at full capacity and water needs to be drained from the reservoir. It is the largest spillway of this type in the world and consumes 14,400 cubic feet of water every second.
02/08/2017-Lake Oroville,CA is only releasing water from the dam generators that are currently under routine maintenance (approximately 5000 cfs, inflow to the lake is much greater), due to spillway erosion. The lake is calculated to reach 100 % capacity by Friday. According to officials, the is no danger to residents downstream. Let it go or overflow, what is it going to be?