Millions of gallons of water rushed out of the Kinzua Dam every minute for eight hours straight into the Allegheny River.
The outflow caused the Allegheny River to rise by almost two feet. The water pushed out of the dam with massive force, resembling giant firehoses opened to full blast.
This water release event was seven years in the making, a perfect storm of conditions that allowed water quality experts to replicate a spring pulse.