Castle Gatehouse, Washington Aqueduct
- Architect
- United States Army Corps of Engineers
- Year
- 1899
- City
- Washington, DC
The Castle Gatehouse is a pumping station built in 1899 at the Georgetown Reservoir on the Washington Aqueduct, designed by the U.S. Army Corps of Engineers. It pumped water into the four-mile Washington City Tunnel leading to McMillan Reservoir, completed in 1902, part of a citywide water system Congress had authorized the Corps to build in 1852 using the Potomac River at Great Falls as its source.
the building
The aqueduct system it served. The gatehouse was a late-19th-century upgrade to a system that already ran water from Great Falls through a 12-mile pipeline, begun in 1853, to the Dalecarlia and Georgetown reservoirs; a filtration plant added at McMillan in 1905 further improved the city's water quality.
the architect
The gatehouse was designed by the United States Army Corps of Engineers, which had overseen construction of the Washington Aqueduct system since Congress authorized it in 1852.
significance
The Castle Gatehouse is listed on the National Register of Historic Places and the District of Columbia Inventory of Historic Sites, and it contributes to the Washington Aqueduct National Historic Landmark district.
nearby
- Engine Company No. 29 (Palisades Firehouse)
- Hillandale (Main Residence & Gatehouse)
- Georgetown University, Astronomical Observatory
- Kreeger Museum
- Glen Hurst
- Georgetown University, Old North