While the Hoover Dam may have been thought to be the tallest by many, this isn’t the case. It takes top honors, with its height reaching 726.6 feet above sea level, not including any appendant structures, like those used during construction (which account for its height).
About the Oroville Dam
The Oroville Dam is a concrete gravity dam in the Feather River watershed of California, at the border of Butte County and Plumas County. It is the tallest dam in the United States and one of the largest dams in the world. The Oroville Dam impounds Lake Oroville, the second-largest man-made lake in California, with a capacity of 3.5 million acre-feet. The dam provides flood control for the Feather River basin and hydroelectric power generation. It is also a part of the California State Water Project. A critical part of California’s water infrastructure, it provides irrigation water for more than 1 million acres of farmland and drinking water for 23 million people. It was constructed between 1962 and 1968 at $1.1 billion. The project was plagued by cost overruns, lawsuits, and labor disputes. The construction of the Oroville Dam was a massive undertaking that required heavy machinery, a large workforce, and a lot of time and money. The Oroville Dam consists of an Earth-fill embankment dam and a concrete gravity dam. The earthen portion of the dam is responsible for storing most of the water, while the concrete section protects against overtopping. Together, these two components make the Oroville Dam one of the most important engineering feats in American history. Unfortunately, the dam has suffered several catastrophic failures in recent years. Most notably, in February 2017, the Oroville Dam experienced its first major failure in its 50-year history, when an uncontrolled release of water from the reservoir forced the evacuation of more than 188,000 people downstream. The crisis was averted when repairs were made to the damaged spillway, but not before the incident caused more than $1 billion in damage.
Reasons Behind the Construction of the Oroville Dam
The dam was built in response to California’s growing demand for water. The state’s population was rapidly expanding, and there was a need for additional water resources. The Oroville Dam is a reliable water source for agricultural, urban, and domestic uses for California residents. California has survived the state’s recurring droughts because of water held behind the Oroville Dam. But, by early October 2021, a severe two-year drought had reduced the water storage behind the Oroville Dam to 22% of its maximum level. It is also a key part of the state’s flood control system. The California Department of Water Resources built the Oroville Dam; construction work on the dam began in 1961 and was completed in 1968. The Oroville Dam provides crucial flood control for Northern California. In addition to its primary purpose, the Oroville Dam also provides hydroelectric power to the surrounding area. Despite the high cost, the Oroville Dam has served its purpose well and has been an asset to the state of California.
About the Hoover Dam
Constructed during the Great Depression, the Hoover Dam is a marvel of engineering. Spanning 1,244 feet across, this dam impounds the Colorado River, creating Lake Mead, the largest reservoir in the United States. Hoover Dam was completed in 1936. Its purpose was to provide irrigation water and hydroelectric power. It also regulated the flooding of the Colorado River. It took more than 21,000 workers to build the dam, and their efforts resulted in a functional and aesthetically pleasing structure. Today, the Hoover Dam continues to provide hydroelectric power and irrigation water for much of the southwestern United States. It is also a popular tourist destination, attracting more than one million visitors annually. As one of the most impressive feats of engineering in American history, the Hoover Dam is truly a sight to behold. Today serves the purposes it was designed for. Hoover Dam is one of the United States’ tallest dams. As a National Historic Landmark, it attracts visitors from all over the world every year. It also provides water storage, flood control, and irrigation along the lower Colorado River.
Reasons Behind the Construction of the Hoover Dam
While the Hoover Dam was originally built for flood control and irrigation, it now serves a vital role in generating electricity for millions of people in the southwestern United States. Here are three of the main reasons behind the construction of the Hoover Dam. First, the Hoover Dam was built to allow for the development of the Colorado River Basin. Before its construction, there was little regulation of the river, which often caused devastating floods. The dam helped control these floods by impounding water in Lake Mead and releasing it slowly over time. Second, the Hoover Dam is part of a larger effort to irrigate land in the Southwest. By storing water in Lake Mead, the dam made it possible to irrigate nearly 2 million acres of land. This irrigation has transformed desert regions into productive agricultural areas. Finally, the Hoover Dam was built to generate hydroelectric power. The dam’s turbines provide power for more than 1 million homes in Arizona, Nevada, and California.
Differences Between the Oroville Dam and Hoover Dam
The two most famous dams in America are the Oroville Dam and the Hoover Dam. The Hoover Dam was built during the Great Depression as part of massive public works projects designed to create jobs and generate hydroelectric power. Oroville Dam was built between 1961-1968.
Height
The Oroville Dam is taller than the Hoover Dam. It is also located on a much larger river, the Feather River in Northern California, while the Hoover Dam is on the smaller Colorado River in Nevada. The Oroville Dam’s reservoir, Lake Oroville, is also much larger than Lake Mead, behind the Hoover Dam.
Water Capacity
The Hoover Dam can hold back the highest volume of water despite being the second tallest structure in the country. The Hoover Dam, located on Lake Mead, has an incredible capacity to hold 8.95 cubic miles of water at once. Lake Mead is one of the most significant reservoirs in the nation and the largest in terms of water capacity. The State Water Project’s main and biggest water reservoir attraction is Oroville Dam. At the convergence of the Feather River, about 70 miles north of Sacramento, the Oroville Dam builds a reservoir with a capacity of 3.5 million acre-feet.
Construction Method
Another key difference is that the Hoover Dam was built with concrete, while the Oroville Dam’s inner core is made of Earth and rock. This different construction method means that the Oroville Dam can flex and move during an earthquake, while the concrete Hoover Dam would be more likely to sustain damage.
Design
Each dam has a different design. The Oroville Dam is an Earth-fill dam, while the Hoover Dam is a concrete arch dam. The Oroville Dam is also located in a more seismically active area. That meant the engineers had to make special engineering considerations during construction. The Hoover Dam is in a much drier climate, which helped to reduce the risk of flooding during construction. Both dams are essential for providing water and power to nearby communities, but the Oroville Dam is currently undergoing significant repairs due to damage caused by recent floods. So, while both dams are impressive feats of engineering, they have some key differences that set them apart.
Similarities between the Oroville Dam and the Hoover Dam
The Oroville Dam and the Hoover Dam are two of the most iconic dams in the United States. Both were built during the 20th century and helped transform their respective regions. The Oroville Dam is located in northern California. The Hoover Dam is located on the Colorado River, near the border between Arizona and Nevada. Despite their different locations, the two dams have many similarities. For instance, both dams are concrete gravity dams and are more than 700 feet tall. Additionally, the government built both dams for irrigation and power generation purposes. Both dams have also had their share of challenges. The Oroville Dam experienced a spillway failure in 2017. The Hoover Dam was temporarily closed due to high water levels in 2019.
Closing Thoughts
So, which dam is better? That really depends on how you quantify “better.” If you want the tallest dam in the country, then Oroville is your best bet. But if you’re looking for a massive structure with a long history, then Hoover Dam is a great choice. These dams are worth a visit if you want to see an impressive body of engineering with a rich history.
Next Up…
Discover the 10 Largest Dams In The United States: There are many water reservoirs in the USA, discover the 10 largest here.The Deadliest Natural Disasters of All Time: Natural disasters can take away a lot. Learn about the deadliest ones here.The 10 Largest Man-Made Lakes in the United States: Humans are invasive, but they have also built beautiful things that are admirable. Find out about the man-made lakes here.
