Rich people tampered with a dam so they could have a nicer ride.
Development included lowering the dam to make its top wide enough to hold a road for a carriageway and putting a fish screen in the spillway. Workers lowered the dam, which had been 72 feet (22 m) high, by 3 feet (0.91 m).[10] These alterations are thought to have increased the vulnerability of the dam. Moreover, a system of relief pipes and valves, a feature of the original dam which had previously been sold off for scrap, was not replaced. The club had no way of lowering the water level in the lake in case of an emergency.
The Johnstown Flood
Rich people tampered with a dam so they could have a nicer ride.
Development included lowering the dam to make its top wide enough to hold a road for a carriageway and putting a fish screen in the spillway. Workers lowered the dam, which had been 72 feet (22 m) high, by 3 feet (0.91 m).[10] These alterations are thought to have increased the vulnerability of the dam. Moreover, a system of relief pipes and valves, a feature of the original dam which had previously been sold off for scrap, was not replaced. The club had no way of lowering the water level in the lake in case of an emergency.
https://en.wikipedia.org/wiki/Johnstown_Flood