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Tidal Basin - Washington, DC

Updated: Sep 7, 2022

The Tidal Basin is part of West Potomac Park in Washington, DC and was built in the 1800s. The bridge over the Tidal Basin and the seawall are a man-made reservoir completed by the engineering firm of Alexander and Repass out of Iowa in the 1940s. Together, they built a business that focused on building bridges with clients across the United States.


The Tidal Basin is about 107 acres in size and approximately 10 feet deep. It was built as a visual centerpiece and to harness the power of the tides in the Potomac River and to flush silt and sediment from the Washington Channel. Twice a day water is captured at high tide thru the inlet gates which allows water to enter the basin.


The 2.1-mile loop takes you by several memorials such as Jefferson Memorial, Martin Luther King Jr. Memorial, FDR Memorial and more. Each spring the National Cherry Blossom Festival is held to celebrate the 1912 gift of 3,000 cherry blossom trees by the mayor of Tokyo.


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