107-581: A combination of aqueducts , reservoirs , and tunnels supplies fresh water to New York City . With three major water systems ( Croton , Catskill , and Delaware ) 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. New York's water treatment process is simpler than most other American cities. This largely reflects how well protected its watersheds are. The city has sought to restrict development surrounding them. One of its largest watershed protection programs
214-542: A 10 m high section to cross a 300 m wide valley, to carry water to their capital city, Nineveh . Although particularly associated with the Romans , aqueducts were likely first used by the Minoans around 2000 BCE. The Minoans had developed what was then an extremely advanced irrigation system , including several aqueducts. The Indian subcontinent is believed to have some of the earliest aqueducts. Evidence can be found at
321-491: A broad, sluggish inlet of the sea, with many marshes along its side, widening steadily into its great estuary, Delaware Bay . The Delaware River constitutes the boundary between Delaware and New Jersey. The Delaware–New Jersey border is actually at the easternmost river shoreline within the Twelve-Mile Circle of New Castle , rather than at mid-river, mid-channel or thalweg , so small portions of land lying west of
428-581: A day from the Delaware and its upstream tributaries. The Delaware River has been attached to areas of high pollution . The Delaware River in 2012 was named the 5th most polluted river in the United States, explained by PennEnvironment and Environment New Jersey. The activist groups claim that there is about 7–10 million pounds of toxic chemicals flowing through the waterways due to dumping by DuPont Chambers Works. PennEnvironment also claims that
535-510: A depth of 40 ft (12 m). There is an effort underway to deepen the 102.5-mile stretch of this federal navigation channel, from Philadelphia and Camden to the mouth of the Delaware Bay to 45 feet. The Delaware River port complex refers to the ports and energy facilities along the river in the tri-state PA - NJ - DE Delaware Valley region. They include the Port of Salem ,
642-529: A distinctive feature of Roman aqueducts and hence the term aqueduct is often applied specifically to a bridge for carrying water . Near the Peruvian town of Nazca, an ancient pre-Columbian system of aqueducts called puquios were built and are still in use today. They were made of intricately placed stones, a construction material widely used by the Nazca culture. The time period in which they were constructed
749-663: A dozen other major streets, in six-, ten-, and twelve-inch pipes, delivering water to a height of 60 feet above the highest streets. The city's first aqueduct, the Croton Aqueduct , was built during 1837 to 1842, from the Croton River in Westchester County , down to Manhattan, a distance of 41 miles (66 km). The aqueduct was supported by the Old Croton Dam . The Old Croton Aqueduct's capacity
856-561: A dry land environment. In Persia , starting around 3000 years ago a system of underground aqueducts called qanāts were constructed, a series of well-like vertical shafts, connected by gently sloping tunnels. This technique: Throughout Petra , Jordan, the Nabataean engineers took advantage of every natural spring and every winter downpour to channel water where it was needed. They constructed aqueducts and piping systems that allowed water to flow across mountains, through gorges and into
963-545: A fragment remains in Mexico City today. Extensive usage of elaborate aqueducts have been found to have been used in ancient Sri Lanka . The best example is the Yoda Ela or Jaya Ganga, an 87 kilometres (54 mi) long water canal carrying excess water between two artificial reservoirs with a gradient of 10 to 20 cm per kilometer during the fifth century AD. However, the ancient engineering methods in calculating
1070-488: A massive filtration plant, and at least another $ 100 million annually on its operation". Moreover, the special topography the waterways run on allows 95% of the system's water to be supplied by gravity. The percentage of pumped water does change when the water level in the reservoirs is out of the normal range. Until the eighteenth century, New York City solely depended on primitive means, such as wells and rainwater reservoirs to collect water for daily use. The first public well
1177-588: A new aqueduct is built alongside the old one because it cannot be shut down during construction. Delaware River The Delaware River is a major river in the Mid-Atlantic region of the United States and is the longest free-flowing (undammed) river in the Eastern United States . From the meeting of its branches in Hancock, New York , the river flows for 282 miles (454 km) along
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#17327649674211284-400: A peak of 30.95 feet (9.43 m) on September 23, 2004, 34.07 feet (10.38 m) on April 4, 2005, and 33.62 feet (10.25 m) on June 28, 2006, all considerably higher than the flood stage of 22 feet (6.7 m). Since the upper Delaware basin has few population centers along its banks, flooding in this area mainly affects natural unpopulated flood plains. Residents in the middle part of
1391-547: A quiet and charming country of farm and forest, diversified with plateaus and escarpments, until it crosses the Appalachian plain and enters the hills again at Easton , Pennsylvania. From this point it is flanked at intervals by fine hills, and in places by cliffs, of which the finest are the Nockamixon Cliffs, 3 miles (5 km) long and above 200 feet (61 m) high. The Appalachian Trail , which traverses
1498-605: A result of the failure of a controversial plan to build a dam on the Delaware River at Tocks Island , just north of the Delaware Water Gap to control water levels for flood control and hydroelectric power generation. The dam would have created a 37-mile (60 km) lake in the center of present park for use as a reservoir. Starting in 1960, the present-day area of the Recreation Area was acquired for
1605-515: A source such as a river, spring, reservoir, qanat , or aqueduct for domestic consumption or agricultural irrigation of crop land uses. Rills were traditionally used in Middle Eastern and Mediterranean climate cultures of ancient and historical eras; and other climates and continents worldwide. They are distinguished from a 'water ditch ' by being lined to reduce absorption losses and to increase durability. The Falaj irrigation system at
1712-642: A third is from the Colorado River. In modern civil engineering projects, detailed study and analysis of open-channel flow is commonly required to support flood control, irrigation systems, and large water supply systems when an aqueduct rather than a pipeline is the preferred solution. In the past, aqueducts often had channels made of earth or other porous materials but significant amounts of water are lost through such unlined aqueducts. As water gets increasingly scarce, these canals are being lined with concrete, polymers , or impermeable soil. In some cases,
1819-509: A thousand years. Roman aqueducts were built in all parts of the Roman Empire , from Germany to Africa, and especially in the city of Rome, where they totalled over 415 kilometres (258 mi). The aqueducts supplied fresh water to public baths and for drinking water, in large cities across the empire, and set a standard of engineering that was not surpassed for more than a thousand years. Bridges, built in stone with multiple arches, were
1926-511: Is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term aqueduct is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose. The term aqueduct also often refers specifically to a bridge carrying an artificial watercourse . Aqueducts were used in ancient Greece , the ancient Near East , ancient Rome , ancient Aztec , and ancient Inca . The simplest aqueducts are small ditches cut into
2033-538: Is a major barrier to travel between New Jersey and Pennsylvania . Most of the larger bridges are tolled only westbound, and are owned by the Delaware River and Bay Authority , Delaware River Port Authority , Burlington County Bridge Commission or Delaware River Joint Toll Bridge Commission . After New York City built 15 reservoirs to supply water to the city's growing population, it was unable to obtain permission to build an additional five reservoirs along
2140-450: Is an important part of the Delaware River's history, adding to its diverse cultural legacy. The magnitude of the commerce of Philadelphia has made the improvements of the river below that port of great importance. Small improvements were attempted by Pennsylvania as early as 1771. Commerce was once important on the upper river, primarily prior to railway competition of 1857. The Delaware Water Gap National Recreation Area came about as
2247-656: Is called a qanat. One historic example found in Syria, the Qanat Firaun, extends over 100 kilometers. Modern aqueducts may also make extensive use of pipelines. Pipelines are useful for transporting water over long distances when it needs to move over hills, or where open channels are poor choices due to considerations of evaporation , freezing, pollution, or environmental impact. They can also be used to carry treated water . Historically, agricultural societies have constructed aqueducts to irrigate crops. Archimedes invented
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#17327649674212354-590: Is dwarfed by aqueducts in the far west of the country, most notably the 242-mile (389-km) Colorado River Aqueduct , which supplies the Los Angeles area with water from the Colorado River nearly 250 miles to the east and the 701.5-mile (1,129.0 km) California Aqueduct , which runs from the Sacramento-San Joaquin River Delta to Lake Perris . The Central Arizona Project is the largest and most expensive aqueduct constructed in
2461-473: Is made up of an extensive grid of water mains stretching approximately 6,800 miles (10,900 km). As of 2015, it costs the city $ 140 million to maintain these mains. There are 965 water sampling stations in New York City. The water-sampling system has been in use since 1997. They consist of small cast-iron boxes with spigots inside them, raised 4.5 feet (1.4 m) above the ground. Scientists from
2568-511: Is no time to let down one’s guard". The construction of Water Tunnel No. 3 is intended to provide the city with a critical third connection to its upstate supply system so that the city can, for the first time, close tunnels No. 1 and No. 2 for repair. The tunnel will eventually be more than 60 miles (97 km) long. Construction began in 1970 and portions of the tunnel opened in 1998 and 2013. The remaining sections are expected to be complete by 2032. Aqueduct (water supply) An aqueduct
2675-468: Is still debated, but some evidence supports circa A.D. 540–552, in response to drought periods in the region. The Guayabo National Monument of Costa Rica, a park covering the largest archaeological site in the country, contains a system of aqueducts. The complex network of uncovered and covered aqueducts still functions well. The aqueducts are constructed from rounded river stones, which are mostly made of volcanic rock . The civilization that constructed
2782-406: Is stored first in the large Kensico Reservoir and subsequently in the much smaller Hillview Reservoir closer to the city. The water is monitored by robotic buoys that measure temperature as well as pH, nutrient, and microbial levels in the reservoirs. A computer system then analyzes the measurements and makes predictions for the water quality. In 2015, the buoys took 1.9 million measurements of
2889-563: Is the Land Acquisition Program, under which the New York City Department of Environmental Protection (DEP) has purchased or protected, through conservation easement , over 130,000 acres (53,000 ha) since 1997. With all the care given, the city's water supply system is partially exempted from filtration requirements by both the federal and the state government, saving more than "$ 10 billion to build
2996-612: Is thought to derive from French de la Guerre . It has often been reported that the river and bay received the name "Delaware" after English forces under Richard Nicolls expelled the Dutch and took control of the New Netherland colony in 1664. However, the river and bay were known by the name Delaware as early as 1641. The state of Delaware was originally part of the William Penn 's Pennsylvania colony . In 1682,
3103-402: Is working to try to address the issue of flooding along the river. As the past few years have seen a rise in catastrophic floods, most residents of the river basin feel that something must be done. The local governments have worked in association with FEMA to address many of these problems, however, due to insufficient federal funds, progress is slow. A number of oil spills have taken place in
3210-675: The Al Ain Oasis , in present-day Abu Dhabi Emirate , uses rills as part of its qanat water system. Sometimes in the Spanish language they are called Acequias . Rills are also used for aesthetic purposes in landscape design. Rills are used as narrow channels of water inset into the pavement of a garden , as linear water features , and often tiled and part of a fountain design. The historical origins are from paradise garden religious images that first translated into ancient Persian Gardens . Rills were later exceptionally developed in
3317-568: The Army Corps of Engineers through eminent domain . Between 3,000 and 5,000 dwellings were demolished, including historical sites, and about 15,000 people were displaced by the project. Because of massive environmental opposition, dwindling funds, and an unacceptable geological assessment of the dam's safety, the government transferred the property to the National Park Service in 1978. The National Park Service found itself as
New York City water supply system - Misplaced Pages Continue
3424-622: The Catskill Aqueduct project, which would play an additional role in supplying the city's ever-growing population of residents and visitors. Construction of the system began in 1907. Portions of the Catskill system began operation in 1916, and the overall system of dams, reservoirs and tunnels was complete by 1924. The Schoharie Reservoir was added to the system and began operation in 1926. The Catskill system has an operational capacity of approximately 850 million gallons per day. Within
3531-730: The Delaware Aqueduct . The Delaware River has two branches that rise in the Catskill Mountains of New York: the West Branch at Mount Jefferson in Jefferson , Schoharie County , and the East Branch at Grand Gorge , Delaware County . The branches merge to form the main Delaware River at Hancock, New York . Flowing south, the river remains relatively undeveloped, with 152 miles (245 km) protected as
3638-778: The Delaware City Refinery , the Dupont Chambers Works , Oceanport Terminal at Claymont , the Marcus Hook Refinery, the Trainer Refinery , the Paulsboro Asphalt Refinery , Paulsboro Refinery , Eagle Point Refinery, and Sunoco Fort Mifflin. As of 2011, crude oil was the largest single commodity transported on the Delaware River, accounting for half of all annual cargo tonnage. The Delaware River
3745-553: The Duke of York granted Penn's request for access to the sea and leased him the territory along the western shore of Delaware Bay, which became known as the "Lower Counties on the Delaware". In 1704, the Lower Counties were given political autonomy to form a separate provincial assembly, but they shared Pennsylvania's provincial governor until the two colonies separated on June 15, 1776, and they remained separate as states after
3852-954: The Moorish (Spanish) Gardens of Al-andalus , such as at the Alhambra in Granada ; and also in other Islamic gardens, cultures, and countries. Early 20th century examples are in the María Luisa Park gardens in Seville, Spain; and at the Casa del Herrero gardens in Montecito, California . Aqueducts sometimes run for some or all of their path through tunnels constructed underground. A version of this common in North Africa and Central Asia that has vertical wells at regular intervals
3959-612: The Otter Creek tributary , leading to a water advisory in Philadelphia . With the failure of the dam project to come to fruition, the lack of flood control on the river left it vulnerable, and it has experienced a number of serious flooding events as the result of snow melt or rain run-off from heavy rainstorms. Record flooding occurred in August 1955, in the aftermath of the passing of the remnants of two separate hurricanes over
4066-406: The Port of Wilmington , the Port of Chester , the Port of Paulsboro , the Port of Philadelphia and the Port of Camden . Combined they create one of the largest shipping areas of the United States. In 2015, the ports of Philadelphia, Camden, and Wilmington handled 100 million tons of cargo from 2,243 ship arrivals, and supported 135,000 direct or indirect jobs. The biggest category of imports
4173-681: The South–North Water Transfer Project aims to connect the Yangtze River basin to Beijing through three separate systems. The project will reuse part of the Grand Canal of China . The simplest aqueducts are small ditches cut into the earth. Much larger channels may be used in modern aqueducts, for instance the Central Arizona Project uses 7.3 m (24 ft) wide channels. A major factor in
4280-763: The State of New Jersey to prevent the State of New York from using the Delaware River as a water source. New York won the case in May 1931 and construction of the Delaware Aqueduct began in March 1937. The aqueduct was completed in 1944. From 1950 to 1964, Rondout , Neversink , Pepacton and Cannonsville reservoirs were established successively to complete the Delaware System. The Delaware Aqueduct supports half of
4387-548: The Upper , Middle , and Lower Delaware National Scenic Rivers . At Trenton, New Jersey , the Delaware becomes tidal , navigable , and significantly more industrial . This section forms the backbone of the Delaware Valley metropolitan area, serving the port cities of Philadelphia , Camden, New Jersey , and Wilmington, Delaware . The river flows into Delaware Bay at Liston Point, 48 miles (77 km) upstream of
New York City water supply system - Misplaced Pages Continue
4494-528: The water screw to raise water for use in irrigation of croplands. Another use for aqueducts is to supply large cities with drinking water. They also help drought-prone areas with water supply . Some of the Roman aqueducts still supply water to Rome today. In California , United States, three large aqueducts supply water over hundreds of miles to the Los Angeles area. Two are from the Owens River area, and
4601-672: The City, the Commissioner of Finance of the City, and the Commissioner of Environmental Conservation of the State . The remaining three members are public appointments: two by the Mayor, and one by the Governor. The New York City Water Board was established in 1905. It sets water and sewer rates for New York City sufficient to pay the costs of operating and financing the system, and collects user payments from customers for services provided by
4708-652: The Clean Water Act explains how conditions of the river should be stable enough for human fishing and swimming. Even though the river has had success with the cleanup of pollution, the Delaware River still does not meet that standard of swimmable or fishable conditions in the Philadelphia/Chester region. In March 2023, a pipe rupture at a Trinseo chemical plant in Bristol, Pennsylvania , released over 8,000 gallons of latex finishing material into
4815-666: The Delaware River as the River of the Year for 2020, citing 75 years of progress in reducing pollution and restoring wildlife. In 1984, the U.S. Department of the Treasury authorized the creation of a wine region or " American Viticultural Area " called the Central Delaware Valley AVA located in southeastern Pennsylvania and New Jersey . The wine appellation includes 96,000 acres (38,850 ha) surrounding
4922-745: The Delaware River north of Philadelphia and Trenton , New Jersey. In Pennsylvania, it consists of the territory along the Delaware River in Bucks County ; in New Jersey, the AVA spans along the river in Hunterdon County and Mercer County from Titusville , New Jersey, just north of Trenton, northward to Musconetcong Mountain . As of 2013, there are no New Jersey wineries in the Central Delaware Valley AVA. In
5029-497: The Delaware River's tributaries. As a result, in 1928 the city decided to draw water from the Delaware River, putting them in direct conflict with villages and towns across the river in Pennsylvania which were already using the Delaware for their water supply. The two sides eventually took their case to the U.S. Supreme Court , and in 1931, New York City was allowed to draw 440 million US gallons (1,700,000 m ) of water
5136-415: The Delaware River. This settlement marked one of the earliest European establishments in the region, with Fort Christina (located near modern-day Wilmington, Delaware) becoming a key trading post and symbol of Swedish colonial ambition. The Swedes engaged in peaceful land negotiations with the local Lenape people and developed a thriving colony. New Sweden became a center for trade and cultural exchange between
5243-522: The Delaware basin experience flooding, including three major floods in the three years (2004–2006) that have severely damaged their homes and land. The lower part of the Delaware basin from Philadelphia southward to the Delaware Bay is tidal and much wider than portions further north, and is not prone to river-related flooding (although tidal surges can cause minor flooding in this area). The Delaware River Basin Commission , along with local governments,
5350-754: The Delaware. Similarly, the East Branch begins from a small pond south of Grand Gorge in the town of Roxbury in Delaware County , flowing southwest toward its impoundment by New York City to create the Pepacton Reservoir , the largest reservoir in the New York City water supply system . Its tributaries are the Beaver Kill River and the Willowemoc Creek which enter into the river ten miles (16 km) before
5457-419: The EPA involved the Delaware County Regional Water Authority (DELCORA) where they set up a plan to spend around $ 200 million to help rid the waterway of about 740 million gallons of sewage and pollution. DELCORA was also fined about $ 1.4 million for allowing the Delaware River to have so much pollution residing in the river in the first place and for not complying with the Clean Water Act. Part of
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#17327649674215564-417: The English expelled the Dutch and took control of the New Netherland colony in 1664, the river was renamed Delaware after Sir Thomas West , 3rd Baron De La Warr, an English nobleman and the Virginia colony's first royal governor, who defended the colony during the First Anglo-Powhatan War . George Washington's crossing of the Delaware River in 1776 led to the Americans winning the Battle of Trenton , which
5671-448: The Lenape". The Delaware River played a key factor in the economic and social development of the Mid-Atlantic region. In the seventeenth century it provided the conduit for colonial settlement by the Dutch ( New Netherland ) and the Swedish ( New Sweden ). Beginning in 1664, the region became an English possession as settlement by Quakers established the colonies of Pennsylvania (including present-day Delaware ) and West Jersey . In
5778-442: The New Croton Aqueduct and build a filtration plant . The plant includes a UV disinfection system. The city had been studying possible sites for such a plant for more than 20 years in both the Bronx and Westchester. From the Hillview reservoir water flows by gravity to three tunnels under New York City. Water rises again to the surface under natural pressure, through a number of shafts. The three tunnels are: The distribution system
5885-452: The New Croton Aqueduct. The 830-by-550-foot (250 by 170 m) plant, which is bigger than Yankee Stadium , is the city's first water filtration plant. The plant was built after the U.S. Environmental Protection Agency (EPA), the U.S. Department of Justice and the State of New York filed suit against the city in 1997 for violating the Safe Drinking Water Act and the New York State Sanitary Code. The city government agreed to rehabilitate
5992-426: The New York City water system. It is the most recently constructed New York City reservoir and began serving the city in 1964. Draining a large watershed of 455 square miles (1,180 km ), the reservoir's capacity is 95.7 billion US gallons (362,000,000 m ). This water flows over halfway through the reservoir to enter the 44-mile (71 km) West Delaware Tunnel in Tompkins , New York. Then it flows through
6099-501: The Pennsylvania–New Jersey state line for 25 miles (40 km) to the end of the ridge at Walpack Bend in the Delaware Water Gap National Recreation Area . The Minisink is a buried valley where the Delaware flows in a bed of glacial till that buried the eroded bedrock during the last glacial period . It then skirts the Kittatinny ridge , which it crosses at the Delaware Water Gap , between nearly vertical walls of sandstone , quartzite , and conglomerate , and then passes through
6206-410: The Project of 1885, the U.S. government undertook systematically the formation of a 26-foot (7.9 m) channel 600 feet (180 m) wide from Philadelphia to deep water in Delaware Bay . The River and Harbor Act of 1899 provided for a 30-foot (9.1 m) channel 600 feet (180 m) wide from Philadelphia to the deep water of the bay. Since 1941, the Delaware River Main Channel was maintained at
6313-423: The Romans, aqueducts were devised much earlier in Greece, the Near East , Nile Valley , and Indian subcontinent , where peoples such as the Egyptians and Harappans built sophisticated irrigation systems. The Aztecs and Incans also built such systems independently later. Roman-style aqueducts were used as early as the 7th century BC, when the Assyrians built an 80 km long limestone aqueduct, which included
6420-403: The Swedish settlers, Native Americans, and neighboring Dutch colonies. Although the Dutch would later assert dominance over the region in 1655, New Sweden laid the groundwork for European settlement along the Delaware River. The fort and surrounding settlements played a crucial role in the early European rivalry for control of North America's resources and territory. This era of Swedish colonization
6527-513: The United States. It stretches 336 miles from its source near Parker, Arizona to the metropolitan areas of Phoenix and Tucson . An aqueduct in New Zealand, "the Oamaru Borough Race", was constructed in the late 19th century to deliver water (and water-power) about 50 km from the Waitaki River at Kurow to the coastal town of Oamaru . In Spain, the Tagus-Segura Water Transfer system of aqueducts opened in 1979 and transports water 286 kilometres (178 mi) from north to south. In China,
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#17327649674216634-406: The Upper Delaware Scenic Byway. The river flows southeast for 78 miles through rural regions along the New York-Pennsylvania border to Port Jervis and Shawangunk Ridge . At Port Jervis , New York, it enters the Port Jervis trough. At this point, the Walpack Ridge deflects the Delaware into the Minisink Valley, where it follows the southwest strike of the eroded Marcellus Formation beds along
6741-452: The West Branch meets the East Branch. The confluence of the two branches is just south of Hancock . The East Branch and West Branch of the Delaware River parallel each other, both flowing in a southwesterly direction. From Hancock, New York , the Delaware flows between the northern Poconos in Pennsylvania, and the lowered shale beds north of the Catskills. The river flows down a broad Appalachian valley, passing Hawk's Nest overlook on
6848-437: The agricultural development of the region. The strategic Delaware River was the scene of several important campaigns during the American Revolutionary War . Perhaps the most famous event was George Washington's crossing of the Delaware River with the Continental Army on the night of December 25–26, 1776, leading to a successful surprise attack and victory against the Hessian troops occupying Trenton, New Jersey , on
6955-424: The aqueduct into the Rondout Reservoir , where the water enters the 85 miles (137 km) Delaware Aqueduct , that contributes to roughly 50% of the city's drinking water supply. At Deposit , on the border between Broome and Delaware counties, it turns sharply to the southeast and is paralleled by New York State Route 17 . It joins the East Branch at 880 feet (270 m) above sea level at Hancock to form
7062-498: The aqueduct system remains a mystery to archaeologists; it is suspected that Guayabo's aqueducts sat at a point of ancient cultural confluence between Aztecs, Mayans, and Incas. When Europeans saw the Aztec capital Tenochtitlan , early in the 16th century, the city was watered by two aqueducts. One of these, Chapultepec aqueduct , built c. 1420 , was rebuilt by the Spanish almost three hundred years later. Originally tracing part of its path over now-gone Lake Texcoco , only
7169-430: The area within less than a week: first Hurricane Connie and then Hurricane Diane , which was, and still is, the wettest tropical cyclone to have hit the northeastern United States. The river gauge at Riegelsville , Pennsylvania recorded an all-time record crest of 38.85 feet (11.84 m) on August 19, 1955. More recently, moderate to severe flooding has occurred along the river. The same gauge at Riegelsville recorded
7276-433: The bay's outlet to the Atlantic Ocean between Cape May and Cape Henlopen . Before the arrival of European settlers, the river was the homeland of the Lenape native people. They called the river Lenapewihittuk, or Lenape River, and Kithanne, meaning the largest river in this part of the country. In 1609, the river was visited by a Dutch East India Company expedition led by Henry Hudson . Hudson, an English navigator,
7383-459: The borders of New York , Pennsylvania , New Jersey , and Delaware , before emptying into Delaware Bay . The river has been recognized by the National Wildlife Federation as one of the country's Great Waters and has been called the "Lifeblood of the Northeast" by American Rivers . Its watershed drains an area of 13,539 square miles (35,070 km ) and provides drinking water for 17 million people, including half of New York City via
7490-400: The caretaker of the previously endangered territory, and with the help of the federal government and surrounding communities, developed recreational facilities and worked to preserve the remaining historical structures. The nearby Shawnee Inn , was identified in the 1990s as the only resort along the banks of the Delaware River. American Rivers , an environmental advocacy group, named
7597-442: The city announced a plan for a major repair project for the aqueduct. In 2013 work began on a 2.5-mile (4.0 km) bypass tunnel under the Hudson River, the largest construction project in DEP's history. The tunnel construction completed in 2019 and the overall bypass project is expected to be complete in 2023. In 2018, the city announced a US$ 1 billion investment to protect the integrity of its municipal water system and to maintain
7704-464: The city measure water from 50 stations every day. The samples are then tested for microorganisms, toxic chemicals, and other contaminants that could potentially harm users of the water supply system. In 2015, the DEP performed 383,000 tests on 31,700 water samples. Leaks were first discovered in the Delaware Aqueduct in 1988, with water losses up to 36 million US gallons (140,000 m) per day. In 2010
7811-544: The city's overall water system, the Catskill Aqueduct is the furthest away from the city, approximately 125 miles (201 km). The Board of Water Supply submitted a request to the Board of Estimate and Apportionment in 1927 to use the Delaware River as an additional water source for New York City. Even though the request was approved, the Delaware Aqueduct project was delayed due to a Supreme Court case filed by
7918-518: The city's water goes through the disinfection process, only 10% of the water is filtered. The Croton Water Filtration Plant was built to address constant turbidity problems that are specific to the Croton water supply system. The plant was completed in 2015 at a cost of over $ 3 billion. The facility was constructed 160 feet (49 m) under Van Cortlandt Park in the Bronx and filters water delivered by
8025-486: The city. The well was immense—16 feet across and 112 feet deep—blasted largely through rock, resulting in a quarry of over 175,000 gallons of water. A steam engine had the capacity to lift nearly half a million gallons a day. An octagonal iron tank, 43 feet in diameter and 20 feet high was installed atop a 27-foot-high stone tower. Mains under Broadway and the Bowery delivered the water to hydrants on Pearl, William, Hudson, and
8132-461: The colony's fledgling settlements. Lord de la Warr arrived with 150 soldiers in time to prevent the colony's original settlers at Jamestown from giving up and returning to England and is credited with saving the Virginia colony. The name of the barony (later an earldom ) is pronounced as in the current spelling form "Delaware" ( / ˈ d ɛ l ə w ɛər / DEL -ə-wair ) and
8239-493: The design of all open channels is its gradient. A higher gradient allows a smaller channel to carry the same amount of water as a larger channel with a lower gradient, but increases the potential of the water to damage the aqueduct's structure. A typical Roman aqueduct had a gradient of about 1:4800. A constructed functional rill is a small canal or aqueduct of stone, brick, concrete, or other lining material, usually rectilinear in cross section , for water transportation from
8346-532: The earth. Much larger channels may be used in modern aqueducts. Aqueducts sometimes run for some or all of their path through tunnels constructed underground. Modern aqueducts may also use pipelines. Historically, agricultural societies have constructed aqueducts to irrigate crops and supply large cities with drinking water. The word aqueduct is derived from the Latin words aqua ( water ) and ductus ( led or guided ). Although particularly associated with
8453-469: The eighteenth century, cities like Philadelphia , Camden (then Cooper's Ferry), Trenton , Wilmington and New Castle were established upon the Delaware and their continued commercial success into the present day has been dependent on access to the river for trade and power. The river provided the path for the settlement of northeastern Pennsylvania's Lehigh Valley , and northwestern New Jersey by German Palatine immigrants—a population that became key in
8560-629: The establishment of the United States. The name "Delaware" also came to be used as a collective name for the Lenape , a Native American people who inhabited an area of the basins of the Susquehanna River , Delaware River, and lower Hudson River in the northeastern United States at the time of European settlement, as well as for their language . As a result of disruption following the French and Indian War , American Revolutionary War , and
8667-430: The exact elevation between the two reservoirs and the exact gradient of the canal to such fine precision had been lost with the fall of the civilization in 13th Century. Modern aqueducts are a central part of many countries' water distribution infrastructure. The United States' aqueducts are some of the world's largest. The Catskill Aqueduct carries water to New York City over a distance of 120 miles (190 km), but
8774-577: The former Jamaica Water Supply Company. The water system has a storage capacity of 550 billion US gal (2.1 billion m) and provides over 1.2 billion US gal (4.5 million m) per day of drinking water to more than eight million city residents, and another one million users in four upstate counties bordering on the system. Three separate sub-systems, each consisting of aqueducts and reservoirs, bring water from Upstate New York to New York City: The latter two aqueducts provide 90% of New York City's drinking water, and
8881-574: The issuance of bonds , commercial paper , and other debt instruments. It is a public-benefit corporation created in 1985 pursuant to the New York City Municipal Water Finance Authority Act. The authority is administered by a seven-member Board of Directors. Four of the members are ex officio members: the Commissioner of Environmental Protection of the City, the Director of Management and Budget of
8988-437: The land mass in the United States. In 2001, the watershed was 18% agricultural land, 14% developed land, and 68% forested land. There are 216 tributary streams and creeks comprising an estimated 14,057 miles of streams and creeks, in the watershed. While the watershed is home to 4.17 million people according to the 2000 Federal Census, these bodies of water provide drinking water to 17 million people—roughly 6% of
9095-615: The later Indian removals from the eastern United States, the name "Delaware" has been spread with the Lenape's diaspora to municipalities, counties and other geographical features in the American Midwest and Canada. The Delaware River's drainage basin has an area of 13,539 square miles (35,070 km ) and encompasses 42 counties and 838 municipalities in five U.S. states: New York, New Jersey, Pennsylvania, Maryland, and Delaware. This total area constitutes approximately 0.4% of
9202-471: The market to underwrite the system's costs; and the Water Board, which sets rates and collects user payments. The DEP has a workforce of over 7,000 employees. It includes three bureaus in charge of, respectively, the upstate water supply system, New York City's water and sewer operations, and wastewater treatment : The NYW finances the capital needs of the water and sewer system of the city through
9309-850: The morning of December 26. During the Philadelphia Campaign control of the Delaware River was urgently needed by the British, allowing their naval fleet to supply troops occupying Philadelphia. To this end, the Battle of Red Bank and the Siege of Fort Mifflin were fought on and along the shores of the Delaware by the American and British navies, commanded by Commodore John Hazelwood and Admiral Francis Reynolds respectively. See historical map of that campaign. In 1638, Swedish settlers, led by Peter Menuet, established New Sweden along
9416-539: The plateau in a deep trough. The branch flows generally southwest, entering Delaware County and flowing through the towns of Stamford and Delhi . In southwestern Delaware County it flows in an increasingly winding course through the mountains, generally southwest. At Stilesville the West Branch was impounded in the 1960s to form the Cannonsville Reservoir , the westernmost of the reservoirs in
9523-587: The pollutants in the river can cause birth defects, infertility among women, and have been linked to cancer. In 2015, the EPA saw the Delaware River as a concern for mass pollution especially in the Greater Philadelphia and Chester, Pennsylvania area. The EPA was involved after accusations that the river met standards made illegal by the Clean Water Act . In complying with the Clean Water Act,
9630-487: The population of the United States. The waters of the Delaware River's basin are used to sustain "fishing, transportation, power, cooling, recreation, and other industrial and residential purposes." It is the 33rd largest river in the United States in terms of flow, but is among the nation's most heavily used rivers in daily freight tonnage. The average annual flow rate of the Delaware is 11,700 cubic feet per second at Trenton, New Jersey . With no dams or impediments on
9737-524: The purity of its unfiltered water supply. A significant portion of the investment will be used to prevent the turbidity that might be caused by climate change , including relocating the residents and cleaning up decaying plantations near the watersheds, and conducting flood-preventing research for infrastructures near the watersheds. According to Eric A. Goldstein, a senior lawyer for the Natural Resources Defense Council : "This
9844-699: The ridge of Kittatinny Mountain in New Jersey, and Blue Mountain in Pennsylvania, crosses the Delaware River at the Delaware Water Gap near Columbia, New Jersey. In Easton, Pennsylvania , the Lehigh River joins the Delaware. At Trenton , the Delaware crosses the Atlantic Seaboard Fall Line with a drop of 8 feet (2.4 m). Below Trenton , the Delaware flows between Philadelphia and New Jersey before becoming
9951-728: The river's main stem, the Delaware is one of the few remaining large free-flowing rivers in the United States. The West Branch of the Delaware River , also called the Mohawk Branch, spans approximately 90 miles (140 km) from the northern Catskill Mountains to its confluence with the Delaware River's East Branch at Hancock, New York . The last 6 miles (9.7 km) forms part of the boundary between New York and Pennsylvania . The West Branch rises in Schoharie County , New York at 1,886 feet (575 m) above sea level, near Mount Jefferson , and flows tortuously through
10058-543: The shoreline, but on the New Jersey side of the river, are pene-exclaves under the jurisdiction of Delaware. The rest of the borders follow a mid-channel approach. At the time of the arrival of the Europeans in the early 17th century, the area near the Delaware River was inhabited by the Native American Lenape people. They called the Delaware River "Lenape Wihittuck", which means "the rapid stream of
10165-631: The sites of present-day Hampi, Karnataka . The massive aqueducts near Tungabhadra River supplying irrigation water were once 15 miles (24 km) long. The waterways supplied water to royal bath tubs. In Oman from the Iron Age , in Salut, Bat, and other sites, a system of underground aqueducts called falaj or qanāts were constructed, a series of well-like vertical shafts, connected by gently sloping horizontal tunnels. There are three types of falaj: These enabled large scale agriculture to flourish in
10272-543: The temples, homes, and gardens of Petra's citizens. Walking through the Siq , one can easily spot the remains of channels that directed water to the city center, as well as durable retention dams that kept powerful flood waters at bay. On the island of Samos , the Tunnel of Eupalinos was built during the reign of Polycrates (538–522 BC). It is considered an underground aqueduct and brought fresh water to Pythagoreion for roughly
10379-558: The water and wastewater utility systems of the City of New York. The five Board members are appointed to two-year terms by the mayor. New York City's water system consists of aqueducts, distribution pipes, reservoirs, and water tunnels that channel drinking water to residents and visitors. A comprehensive raised-relief map of the system is on display at the Queens Museum of Art . Until the early 21st century, some places in southeastern Queens received their water from local wells of
10486-704: The water in the reservoirs. The water in the Kensico Reservoir flows to the Catskill-Delaware Water Ultraviolet Disinfection Facility , located in Westchester County. Although the city water system uses chlorination as a basic disinfection technology, the ultraviolet disinfection (UV) facility was built to control microorganisms such as giardia and cryptosporidium which are resistant to chlorine treatment. Ultraviolet treatment
10593-501: The watershed for these aqueducts extends a combined 1 million acres (400,000 ha). Two-fifths of the watershed is owned by the New York City, state, or local governments, or by private conservancies. The rest of the watershed is private property that is closely monitored for pollutants; development upon this land is restricted. The DEP has purchased or protected over 130,000 acres (53,000 ha) of private land since 1997 through its Land Acquisition Program. Water from both aqueducts
10700-589: The whole city's water usage by supplying more than 500 million gallons of water daily. Responsibility for the city water supply is shared among three institutions: the New York City Department of Environmental Protection (DEP), which operates and maintains the system and is responsible for investment planning; the New York City Municipal Water Finance Authority (NYW), which raises debt financing in
10807-687: Was a pivotal moment in the American Revolution . The Delaware River is named in honor of Thomas West, 3rd Baron De La Warr (1577–1618), an English nobleman and the Virginia colony's first royal governor , who defended the colony during the First Anglo-Powhatan War . Lord de la Warr waged a punitive campaign to subdue the Powhatan after they had killed the colony's council president, John Ratcliffe , and attacked
10914-507: Was around 90 million gallons per day. To meet the city's growing needs, the city started construction of the New Croton Aqueduct in 1885. The new aqueduct opened for operation in 1890 with a capacity of 300 million gallons per day. The New Croton Dam was added in 1906. The Old Croton Aqueduct continued supplying water to the city until 1955 and closed in 1965. In 1905, the city's newly established Board of Water Supply launched
11021-402: Was aware of its deteriorated water quality, owing to its rapid population growth (60,000 to 200,000 from 1800 to 1830), which had a considerable danger of causing epidemics. In April 1831, a new water supply and distribution system opened, for fighting fires. It included a well and cistern on 13th Street between Bowery (today 4th Avenue) and Third Avenue, which was then at the northern fringes of
11128-643: Was dug in Bowling Green in 1677, and the first reservoir was built on the East Side of Manhattan in 1776 after the population grew up to 22,000. Collect Pond , or "Fresh Water Pond", was a body of fresh water in what is now Chinatown in Lower Manhattan . For the first two centuries of European settlement in Manhattan, it was the main water supply system for the growing city. Later, the city
11235-436: Was fruit, carried by 490 ships, followed by petroleum, and containers, with 410 and 381 ships, respectively. The biggest category of exports was of shipping was containers, with 470 ships. In 2016, 2,427 ships arrived at Delaware River port facilities. Fruit ships were counted at 577, petroleum at 474, and containerized cargo at 431. At one time it was a center for petroleum and chemical products and included facilities such as
11342-586: Was hired to find a western route to Cathay (China), but his encounters set the stage for Dutch colonization of North America in the 17th century. Early Dutch and Swedish settlements were established along the lower section of the river and Delaware Bay . Both colonial powers called the river the South River (Zuidrivier), compared to the Hudson River , which was known as the North River . After
11449-452: Was seen as the least risky way to control such microorganisms and avoid higher levels of chlorination, which can lead to unintended health effects. The UV facility opened on October 8, 2013, and was built at a cost of $ 1.6 billion. The compound is the largest ultraviolet germicidal irradiation plant in the world; it contains 56 UV reactors designed to treat up to 2.2 billion US gal (8.3 billion L) per day. While all of
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