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The gatehouse was constructed at the Georgetown Reservoir to pump water into the four-mile long Washington City Tunnel that led to McMillan Reservoir, completed in 1902. [2] [3] A filtration system was constructed at McMillan in 1905 and this system improved the quality of city water. [3] [4] [5] Construction of the gatehouse began in 1899.
At the outlet of the Georgetown facility is a sluice gate building that controls the flow of water into Washington City Tunnel, which leads to the McMillan Reservoir. This structure, called the Georgetown Castle Gatehouse , was built by the Army (c. 1901) in the shape of a castle.
The Washington Aqueduct Dam, upstream of the Potomac River's Great Falls. The centerpiece of the Aqueduct is a 12-mile (19 km) pipeline that connects the system's dam at Great Falls with the Dalecarlia Reservoir on the border with Montgomery County, Maryland. Portions of the Aqueduct went online on January 3, 1859, and the full pipeline began ...
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Experience Music Project. This list of museums in Washington state encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing.
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A gatehouse is a type of fortified gateway, an entry control point building, enclosing or accompanying a gateway for a town, religious house, castle, manor house, or other fortification building of importance. Gatehouses are typically the most heavily armed section of a fortification, to compensate for being structurally the weakest and the ...
The purpose of the new Washington City Tunnel was to provide more storage, sedimentation and distribution capacity for the system. Lydecker estimated that the basic tunnel construction cost would be about $530,000, with some additional funds allocated for contingencies, such as lining portions of the tunnel, if needed.