A young student engineer had just started a new job on a dam construction project. Another employee was given the task of showing him around the dam site. He took the engineer to a drain area at the base of the dam to show him how to measure water in the chamber. The employee opened the manhole cover and descended into the chamber. He had been at the bottom for a couple of seconds when he started back up the stairs. He became red in the face and started coughing. He then fell back against the chamber wall, and down to […]