Columbia Island, Artificial river island in Washington, D.C., United States
Columbia Island spans 0.19 square miles in the Potomac River, reaching an elevation of 22 feet above sea level with a 2.95-mile coastline.
The federal government created Columbia Island between 1911 and 1927 by depositing dredged material from the Potomac River to establish a western bridge terminus.
The Navy-Merchant Marine Memorial stands on Columbia Island, commemorating service members through a sculptural installation completed in 1939.
Visitors can reach Columbia Island via the Arlington Memorial Bridge from downtown Washington or through multiple access points from Virginia.
The National Park Service planted one million daffodils and 2,700 dogwood trees during a large-scale landscaping project in the late 1960s.
Location: Washington, D.C.
Inception: 1916
GPS coordinates: 38.88230,-77.05720
Latest update: March 8, 2025 06:37
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