An emergency drawdown structure for a reservoir consists of a 1,000-ft long, 1.0-ft diameter, steel (commercial) pipe with a wall thickness of 0.5 inches. A gate valve is located at the end of the pipe. If the valve is closed suddenly, determine the maximum water hammer pressure that will develop in the pipeline. The pipe is free to move longitudinally, and the water level in the reservoir is 98.4 feet above the outlet.