A look back at the Hoover Dam 89 years later

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Around this time, 89 years ago, the Hoover Dam began supplying electricity to the city of Los Angeles.

Finished in 1935 and located along the Nevada and Arizona state lines, the concrete arch structure was hailed as the tallest dam in the world at its dedication.

Present day, Hoover Dam remains the second-tallest dam in the country, holding back the waters of Lake Mead. Its hydroelectric power plant generates enough electricity for more than 1.3 million people, according to the United States Census Bureau.

The dam does more than supply electricity. It also serves the vital role of providing flood control and water storage for irrigation and drinking water.

On May 29, 1935, workers had completed the bulk of the heavy construction of the dam. And by Oct. 9, 1936, Lake Mead had fille