How much more water can Lake Mead hold before it breaks through Hoover Dam?

 Lake Mead is a large artificial lake located on the Colorado River, just east of Las Vegas, Nevada. It was created by the construction of Hoover Dam in the 1930s, and it serves as a major source of water, hydroelectric power, and recreation for the southwestern United States.

Lake Mead has a maximum capacity of around 27.5 million acre-feet, which is the amount of water it can hold before it reaches its maximum level and begins to flow over the top of Hoover Dam. This maximum capacity is based on the elevation of the lake at an elevation of 1,221 feet above sea level.

Currently, Lake Mead is at about 45% of its maximum capacity, with a water level of around 1,077 feet above sea level. This means that the lake has the capacity to hold around 12.4 million acre-feet of water before it reaches its maximum level and begins to flow over the top of Hoover Dam.

Overall, Lake Mead has the capacity to hold around 12.4 million acre-feet of water before it breaks through Hoover Dam, which is about 45% of its maximum capacity.