Located between the Washington Monument and the Jefferson Memorial is the Tidal Basin. It is about 107 acres in size and approximately 10 feet deep. It was built to harness the power of the tides in the Potomac River and to flush silt and sediment from the Washington Channel.

The Tidal Basin is a partially man-made reservoir between the Potomac River and the Washington Channel in Washington, DC. The Basin is designed to release 250 million US gallons (950,000 m) of water captured at high tide, twice a day. The Tidal Basin was laid out after World War II. It was built in 1949 by the construction firm of Alexander and Repass, unusual at that time, because Alexander was of African descent and Repass was of European descent.

Residents and tourists who visit the Jefferson Memorial can walk around the Tidal Basin. Of special interest in the spring, are the Cherry Blossom trees that border the Tidal Basin.

More Info: www.nps.gov