Tidal Basin

The Tidal Basin is a partially man-made reservoir between the Potomac River and the Washington Channel in Washington, D.C. It is part of West Potomac Park and is a focal point of the National Cherry Blossom Festival held each spring. The Jefferson Memorial, the Martin Luther King, Jr. National Memorial, the Franklin Delano Roosevelt Memorial, and the George Mason Memorial are situated adjacent to the Tidal Basin. The basin covers an area of about 107 acres (43 ha) and is 10 feet (3.0 m) deep.

This article is about Washington D.C.. For London, UK, see Tidal Basin railway station. For the natural landform type, see basin. For generic artificial basin or vessel that can be flooded and drained, see drydock.
Tidal Basin (District of Columbia)
Tidal Basin
LocationWashington, D.C.
Coordinates38°53′03″N 77°02′21″W
TypeArtificial
Primary inflowsPotomac River
38°52′49″N 77°02′25″W
Primary outflowsWashington Channel
38°52′58″N 77°01′59″W
Basin countriesUnited States
Surface area107 acres (0.43 km2)
Average depth10 feet (3.0 m)
Surface elevation3 feet (0.91 m)
References"Tidal Basin". Geographic Names Information System. United States Geological Survey.

History
Tidal Basin in the 1920s

The concept of the Tidal Basin originated in the 1880s to serve both as a visual centerpiece and as a means for flushing the Washington Channel, a harbor separated from the Potomac River by fill lands where East Potomac Park is situated. Peter Conover Hains, an engineering officer in the U.S. Army, oversaw the design and construction. The basin was initially named Twining Lake, in honor of Major William Johnson Twining (U.S. Army Corps of Engineers), Washington DC's first Engineer Commissioner. According to testimony given to a Congressional subcommittee in 1917, it was Major Twining's idea to create a tidal reservoir and use that water to help "flush" the Washington Channel, and the design was carried out by Colonel Hains. A 1917 Army Corps of Engineers map of Washington already shows the basin with the name "Twining Lake".

In August 1918 the whites-only Congressionally-funded Tidal Basin Bathing Beach was opened in front of the site of the present-day Jefferson Memorial. The beach was popular, and by one estimate attracted up to 20,000 people on a July day in 1920. Congress had planned to open a separate beach for African-Americans nearby, but the plan was blocked by southern senators. Rather than integrate the beach, Congress ordered the dismantling of the beach in 1925.[1]

The Tidal Basin which exists today was not laid out until after World War II. It was built in 1949 by the construction firm of Alexander and Repass, which was unusual at that time because Alexander was of African descent and Repass was of European descent.

Redesign of the Tidal Basin is under consideration in 2020, as sea level rise and land subsidence causes portions of the paths next to the water to flood twice daily at high tide.[2]

Design
The Tidal Basin with cherry blossoms
Orphans playing in the Tidal Basin circa 1924

The basin is designed to release 250 million US gallons (950,000 m3) of water captured at high tide twice a day. The inlet gates, located on the Potomac side of the basin, allow water to enter the basin during high tide. During this time, the outlet gates, on the Washington Channel side, close to store incoming water and block the flow of water and sediment into the channel. As the tide begins to ebb, the general outflow of water from the basin forces the inlet gates to close. This same force is applied to the outlet gates, which open into the channel. Silt build up is swept away by the extra force of water running from the Tidal Basin through the channel. The gates are maintained by the U.S. Army Corps of Engineers, which has restored the functioning of the gates.

The northern lobe of the basin is crossed by the 433 foot (132.0 m) Kutz Memorial Bridge, named in honor of Brigadier General Charles W. Kutz the Commissioner of Engineering for the District of Columbia during the first half of the 20th century, carrying eastbound Independence Avenue traffic in three lanes. The bridge was designed by Paul Cret, begun in 1941, completed 1943 and altered with dedication in 1954. It is of concrete and steel on pilings, all granite faced.[3]

As part of the restoration and redesign of the Lincoln Memorial Reflecting Pool, completed in 2012, water is pumped from the Tidal Basin to fill the pool.[4]

Incidents

The Tidal Basin was the scene of an incident involving the Chairman of the U.S. House of Representatives Committee on Ways and Means, Democratic Congressman Wilbur Mills. On October 7, 1974, Mills' car, with an Argentine stripper known as Fanne Foxe in the back with Mills and driven by a former Nixon staffer, was stopped by US Park police late at night because the driver had not turned on the headlights. Mills was intoxicated and his face was cut from a fight with Foxe. When police approached the car, Foxe leapt from the car and jumped into the nearby Tidal Basin. Despite the scandal, Mills was re-elected to Congress in November 1974 with 60% of the vote, but in December he drunkenly staggered onstage at a Boston strip club where Ms. Foxe was performing. Soon after this second embarrassment Mills was forced to step down from his chairmanship of the Ways and Means Committee. Mills eventually acknowledged his alcoholism, sought treatment at the West Palm Beach Institute, and joined Alcoholics Anonymous. He did not seek re-election in 1976.[5]

Recreation

From mid-March until October, paddle-boats are available for rent. The activity is very popular during the Cherry Blossom Festival, which takes place in April. Both two and four person paddle-boats are available.[6]

The Tidal Basin as seen from the Franklin Delano Roosevelt Memorial. Monuments seen are the Washington (left) and the Jefferson Memorial (right).
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See also

References
  1. Knapp, Jackson (26 August 2018). "Once Upon a Time, the Tidal Basin Was a Swimming Beach". Washingtonian. Retrieved 29 June 2019.
  2. Kennedy, Sarah (2020-02-17). "Climate change is coming for the Tidal Basin in Washington, D.C." Yale Climate Connections. Retrieved 2020-02-17.
  3. Park Historic Structures Program, National Park Service. "Kutz Memorial Bridge - Res. 332". List of Classified Structures. National Park Service. Archived from the original on 24 September 2015. Retrieved 29 September 2013.
  4. Ruane, Michael E. (August 6, 2012). "Lincoln Memorial Reflecting Pool nearly ready after $34 million reconstruction". Washington Post. Retrieved August 7, 2012.
  5. Green, Stephen (1974-10-11). "Mills Admits Being Present During Tidal Basin Scuffle". Washington Post. Retrieved 2009-04-05.
  6. http://www.tidalbasinpaddleboats.com/directions_hours.html%7CTidal Basin Paddle Boats Official Website}

 This article incorporates public domain material from the National Park Service document: "http://www.nps.gov/nacc/pphtml/subnaturalfeatures19.html".

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