
Los Angeles is home to nearly four million people, but this bustling metropolis would not have been possible without a vital resource: water. While the city’s origins can be traced back to the humble Los Angeles River, it was the Los Angeles Aqueduct that allowed the city to grow exponentially. This article will delve into the history of the Los Angeles Aqueduct, the monumental cascades that make it an engineering marvel, and the key people involved in its conception and construction.

In the early 20th century, the population of Los Angeles was growing rapidly, and city leaders recognized that the existing water supply from the Los Angeles River would not be sufficient to support the city’s future growth. Thus, in 1905, the city embarked on a quest to secure a new water source to sustain its increasing population.
Engineer and visionary William Mulholland was tasked with finding a solution to the city’s water woes. He discovered the Owens River, located more than 200 miles away, which had an abundant supply of fresh water. In 1906, Los Angeles voters approved the bonds necessary to construct a massive aqueduct system that would transport water from the Owens River to the thirsty city.
Construction of the Los Angeles Aqueduct began in 1908 and was completed in November 5, 1913, a remarkable achievement for its time. The aqueduct spans 233 miles, making it one of the largest engineering projects in the United States. It was an impressive display of human ingenuity and perseverance, as it required the construction of 142 tunnels, numerous reservoirs, and the iconic cascades.

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The Cascades rely on gravity to create a stunning visual display while serving a functional purpose. As the water flows over the series of terraced steps, its velocity increases, allowing it to mix with air and become oxygenated. This natural aeration process helps to maintain water quality and reduce the presence of unwanted gases, such as hydrogen sulfide, which can cause a foul odor.
The cascading waterfall serves as the point where water from the aqueduct is released into the L.A. basin, traveling the final stretch through a series of tunnels and pipelines to reach its ultimate destination: the taps of millions of Los Angeles residents.

The Los Angeles Aqueduct was the brainchild of William Mulholland, a self-taught engineer who served as the head of the Los Angeles Department of Water and Power. He was responsible for overseeing the project and ensuring its timely completion.
Fred Eaton, the sixth Anglo child to be born in Los Angeles, was the first “Native Son” Engineer in Los Angeles. As the former mayor of Los Angeles, Eaton played a crucial role in securing the rights to the water in the Owens Valley, which was essential to the aqueduct’s construction. He collaborated with Mulholland in the early stages of planning and development.
Thousands of workers were involved in the construction of the Los Angeles Aqueduct, including laborers, engineers, and surveyors. They toiled under challenging conditions, facing harsh weather, and rough terrain.
The Los Angeles Aqueduct Cascades are an essential part of the aqueduct system. They serve both a practical and symbolic purpose.
The practical function of the cascades is to release the water from the aqueduct at a controlled rate, allowing it to flow into the city’s water distribution system. The cascades rely on gravity to transport water through the system, helping to minimize the need for pumping stations and thereby reducing energy consumption.

The cascades also serve a symbolic purpose, representing the triumphant arrival of water in Los Angeles. They are a monument to the human spirit and the ingenuity required to bring life-sustaining water to a burgeoning city. The aqueduct allowed Los Angeles to become the thriving metropolis it is today, providing a reliable water supply to millions of residents. The cascades have become a popular tourist destination, allowing visitors to witness firsthand the impressive engineering feat that made the growth of Los Angeles possible.