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Old Naval Observatory
US Naval Observatory (Washington, District of Columbia).jpg
Old Naval Observatory is located in Central Washington, D.C.
Old Naval Observatory
Location in Central Washington, D.C.
Old Naval Observatory is located in the District of Columbia
Old Naval Observatory
Location in the District of Columbia
Old Naval Observatory is located in the United States
Old Naval Observatory
Location in the United States
Location 23rd Street and E Street, N.W., Washington, D.C.
Built 1844 (1844)
Architect James Gilliss
NRHP reference No. 66000864
Quick facts for kids
Significant dates
Added to NRHP October 15, 1966
Designated NHL January 12, 1965

The Old Naval Observatory is a historic site at 23rd and E Street in Northwest, Washington, D.C.. It is where the United States Naval Observatory was located from 1844 to 1893, when it moved to its present grounds. The original observatory building, built 1839-40, still stands, and is a designated National Historic Landmark. The Washington meridian of 1850 passes through the Observatory. The property for many years housed the Navy's Bureau of Medicine and Surgery, which moved out in 2012. The property has been taken over by the State Department.

It was declared a National Historic Landmark in 1965.

History

Observatory

The observatory operated from 1844 to 1893 when it was closed in favor of a new U.S. Naval Observatory facility on Massachusetts Avenue. The Moons of Mars were discovered from this site in 1877.

The building and grounds were retained by the U.S. Navy, which first used it to house the Naval Museum of Hygiene from 1894 to 1902.

Naval Medical Hospital and National Institute of Health

Old Naval Observatory 1936
The campus in 1936, looking east. The NIH buildings are along the bottom, the Naval Hospital is at center, and the old observatory is at top left.

Beginning in 1903, the Naval Medical Hospital was constructed on the grounds, and it remained in use until 1942, when hospital operations were transferred to the National Naval Medical Center in Bethesda, Maryland.

The U.S. Public Health Service Hygienic Laboratory, later the National Institutes of Health, moved to the campus in 1904 from the Marine Hospital in Stapleton, Staten Island. Five buildings would be built in 1904, 1915, 1919, 1934, and another one in the early 1930s. In 1938, NIH moved to a new campus in Bethesda, Maryland.

Navy Bureau of Medicine and Surgery and CIA

The facility housed the Navy's Bureau of Medicine and Surgery from 1942 until 2012. The Office of Strategic Services and its successor the Central Intelligence Agency were located on the campus from WWII until 1961.

In 1963, multiple buildings were demolished to construct the E Street Expressway.

Department of State

The grounds and observatory are closed to the public. The entire Navy Hill is being transferred to the United States Department of State due to Base Realignment and Closure, and the Navy will be moving out. The Central Intelligence Agency's forerunner, the Office of Strategic Services was a tenant on the Hill during World War II, and the United States Public Health Service had a hospital there.

In 2014, the Department of State began expanding into the Navy Hill. A joint venture consisting of the architectural firms of Goody, Clancy and the Louis Berger Group won a $2.5 million contract in January 2014 to begin planning the renovation of the buildings on the 11.8-acre (4.8 ha) Navy Hill campus.

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