The Washington Aqueduct is an aqueduct that provides the public water supply system serving Washington, D.C., and parts of its suburbs, using water from the Potomac River. One of the first major aqueduct projects in the United States, it was commissioned by the U.S. Congress in 1852, and construction began in 1853 under the supervision of Montgomery C. Meigs and the U.S. Army Corps of Engineers. Portions of the aqueduct went online on January 3, 1859, and the full pipeline began operating in 1864.
Dalecarlia Reservoir is the primary storage basin for drinking water in Washington, D.C., and Arlington County, Virginia. The reservoir is fed by an underground aqueduct in turn fed by low dams which divert portions of the Potomac River near Great Falls and Little Falls. The reservoir is located between Spring Valley and the Palisades, two neighborhoods in Northwest Washington, D.C., and Brookmont, a neighborhood in Montgomery County, Maryland.
The District of Columbia Water and Sewer Authority(DC Water) provides drinking water, sewage collection, and sewage treatment for Washington, D.C. The utility also provides wholesale wastewater treatment services to several adjoining municipalities in Maryland and Virginia, and maintains more than 9,000 public fire hydrants in Washington, D.C.
East Potomac Park is a park located on a man-made island in the Potomac River in Washington, D.C., United States. The island is between the Washington Channel and the Potomac River, and on it the park lies southeast of the Jefferson Memorial and the 14th Street Bridge. Amenities in East Potomac Park include the East Potomac Park Golf Course, a miniature golf course, a public swimming pool, tennis courts, and several athletic fields. The park is a popular spot for fishing, and cyclists, walkers, inline skaters, and runners heavily use the park's roads and paths. A portion of Ohio Drive SW runs along the perimeter of the park.
A combination of aqueducts, reservoirs, and tunnels supplies fresh water to New York City. With three major water systems stretching up to 125 miles (201 km) away from the city, its water supply system is one of the most extensive municipal water systems in the world.
The Washington Suburban Sanitary Commission is a bi-county political subdivision of the State of Maryland that provides safe drinking water and wastewater treatment for Montgomery and Prince George's Counties in Maryland except for a few cities in both counties that continue to operate their own water facilities.
The Georgetown Reservoir is a reservoir that provides water to the District of Columbia. Part of the city’s water supply and treatment infrastructure, it is located in the Palisades neighborhood, approximately two miles downstream from the Maryland–D.C. boundary.
The Croton River is a river in southern New York with three principal tributaries: the West Branch, Middle Branch, and East Branch. Their waters, all part of the New York City water supply system, join downstream from the Croton Falls Reservoir. Together, their waters and the reservoirs linked to them represent the northern half of the New York City water system's Croton Watershed.
Little Falls Branch, a 3.8-mile-long (6.1 km) tributary stream of the Potomac River, is located in Montgomery County, Maryland. In the 19th century, the stream was also called Powder Mill Branch. It drains portions of Bethesda, Somerset, Friendship Heights, and Washington, D.C., flows under the Chesapeake and Ohio Canal (C&O), and empties into the Potomac at Little Falls rapids, which marks the upper end of the tidal Potomac.
The Jacqueline Kennedy Onassis Reservoir, also known as Central Park Reservoir, is a decommissioned reservoir in Central Park in the borough of Manhattan, New York City, stretching from 86th to 96th Streets. It covers 106 acres (43 ha) and holds over 1 billion US gal (3.8 million m3) of water.
The New Croton Aqueduct is an aqueduct in the New York City water supply system in Westchester County, New York carrying the water of the Croton Watershed. Built roughly parallel to the Old Croton Aqueduct which it originally augmented, the new aqueduct opened in 1890. The old aqueduct remained in service until 1955, when supply from the Delaware and Catskill Aqueducts was sufficient to allow taking it off line.
The following outline is provided as an overview of and topical guide to the District of Columbia:
Castle Gatehouse, Washington Aqueduct is a pumping station at the Georgetown Reservoir on the Washington Aqueduct in The Palisades neighborhood of Washington, D.C., United States. The building is on the National Register of Historic Places and contributes to the Washington Aqueduct National Historic Landmark.
McMillan Sand Filtration Site is a twenty-five acre decommissioned water treatment plant in northwest Washington, D.C., built as part of the historic McMillan Reservoir Park. It is bound on the north by Michigan Avenue, on the east by North Capitol Street, on the south by Channing Street and on the west by McMillan Drive; which runs along the edge of the reservoir, to which it was formerly attached. Two paved courts lined by regulator houses, tower-like sand bins, sand washers and the gated entrances to the underground filter cells provided a promenade for citizens taking the air in the park before it was fenced off in WWII.
Battery Cameron was a Union Army defensive site during the Civil War. Battery Cameron was one in a chain of fortifications in the Civil War Defenses of Washington, D.C., also known as the "Fort Circle". The battery was located atop a hill on Foxhall Road at what is now the intersection of Foxhall and Whitehaven Parkway, NW. The battery included two 100-pound Parrott rifles, placed in such a way as to sweep Aqueduct Bridge, and Virginia beyond.
The McMillan Fountain is a public artwork by American artist Herbert Adams located on the McMillan Reservoir grounds. The fountain, completed in 1912, emplaced in 1913 and dedicated after October 1919, consists of a sculptural group of the Three Graces placed upon a pink granite base. Cast by Roman Bronze Works, the fountain was originally part of a large landscape setting designed by Charles A. Platt. It was dismantled in 1941 and moved to storage. The partially reconstructed fountain currently resides near its original location at McMillan Reservoir in the Bloomingdale neighborhood of Washington, D.C.
Rawlins Park is a rectangular public park in the Foggy Bottom neighborhood of Washington, D.C., two blocks west of the White House grounds and two blocks north of the National Mall. The boundaries of the park are 18th Street NW to the east, E Street NW to the south and north, and 19th Street NW to the west. The park was an undeveloped open space for many years, until plans were made to install the statue of John Aaron Rawlins in 1874. Various improvements were made, but the area surrounding the park remained mostly undeveloped. This changed in the 1890s when the area was cleared of marshes, and houses were built on the park's southern border.
O'Shaughnessy Dam is a 430-foot (131 m) high concrete arch-gravity dam in Tuolumne County, California, United States. It impounds the Tuolumne River, forming the Hetch Hetchy Reservoir at the lower end of Hetch Hetchy Valley in Yosemite National Park, about 160 miles (260 km) east of San Francisco. The dam and reservoir are the source for the Hetch Hetchy Aqueduct, which provides water for over two million people in San Francisco and other municipalities of the west Bay Area. The dam is named for engineer Michael O'Shaughnessy, who oversaw its construction.
The Croton Water Filtration Plant, is a drinking water treatment facility in New York City which began operation in 2015. The plant construction cost was over $3 billion, The facility was built 160 feet (49 m) under Van Cortlandt Park's Mosholu Golf Course in the Bronx.
