The Kinzua Dam releases 15,000 cubic feet of water per second for eight hours, resulting in 3.2 billion gallons of water released into the river during those hours, equivalent to nearly 5,000 Olympic-sized swimming pools in Warren, Pennsylvania, March 30, 2023. Kinzua Dam released this water in March to simulate a “spring pulse,” which are natural phenomena that typically occur in temperate climates and during early spring and send cues to aquatic species and other parts of the ecosystem by moving sediments and nutrients. The district’s water management team modeled the operation to ensure the artificial pulse would not impact the reservoir’s summer pool or cause flooding. (U.S. Army Corps of Engineers photo by Andrew Byrne)