What is the most famous Dam in the United States?

What is the second tallest dam in the United States?
- Hoover Dam. Hoover Dam is one of the largest concrete gravity-arch dams in the US found on the Colorado River, on the Nevada-Arizona border. The dam is one of the world’s largest dams and is the US’s second-tallest in the country reaching a height of 726.4 feet, only surpassed by Oroville Dam.
How big can a dam be in the US?
- Equal or exceed 25 feet in height and exceed 15 acre-feet in storage. Equal or exceed 50 acre-feet storage and exceed 6 feet in height. The goal of the NID is to include all dams in the United States that meet these criteria, yet in reality, is limited to information that can be gathered and properly interpreted with the given funding.
Who regulates dams in the United States?
- In most cases, dams within the NID criteria are regulated (construction permit, inspection, and/or enforcement) by federal or state agencies, who have basic information on the dams within their jurisdiction.


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