185-644: 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 the borders of New York , Pennsylvania , New Jersey , and Delaware , before emptying into Delaware Bay . The river has been recognized by
370-582: A lake , an ocean , or another river. A stream refers to water that flows in a natural channel , a geographic feature that can contain flowing water. A stream may also be referred to as a watercourse. The study of the movement of water as it occurs on Earth is called hydrology , and their effect on the landscape is covered by geomorphology . Rivers are part of the water cycle , the continuous processes by which water moves about Earth. This means that all water that flows in rivers must ultimately come from precipitation . The sides of rivers have land that
555-536: A trip hammer , and grind grains with a millstone . In the Middle Ages , water mills began to automate many aspects of manual labor , and spread rapidly. By 1300, there were at least 10,000 mills in England alone. A medieval watermill could do the work of 30–60 human workers. Water mills were often used in conjunction with dams to focus and increase the speed of the water. Water wheels continued to be used up to and through
740-715: A boat along certain stretches. In these religions, such as that of the Altai in Russia , the river is considered a living being that must be afforded respect. Rivers are some of the most sacred places in Hinduism. There is archeological evidence that mass ritual bathing in rivers at least 5,000 years ago in the Indus river valley . While most rivers in India are revered, the Ganges is most sacred. The river has
925-483: 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
1110-515: A central role in various Hindu myths, and its water is said to have properties of healing as well as absolution from sins. Hindus believe that when the cremated remains of a person is released into the Ganges, their soul is released from the mortal world. Freshwater fish make up 40% of the world's fish species, but 20% of these species are known to have gone extinct in recent years. Human uses of rivers make these species especially vulnerable. Dams and other engineered changes to rivers can block
1295-557: 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 the later Indian removals from
1480-408: A continuous flow of water throughout the year. This may be because an arid climate is too dry depending on the season to support a stream, or because a river is seasonally frozen in the winter (such as in an area with substantial permafrost ), or in the headwaters of rivers in mountains, where snowmelt is required to fuel the river. These rivers can appear in a variety of climates, and still provide
1665-520: 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 , the Port of Wilmington ,
1850-564: A habitat for aquatic life and perform other ecological functions. Subterranean rivers may flow underground through flooded caves. This can happen in karst systems, where rock dissolves to form caves. These rivers provide a habitat for diverse microorganisms and have become an important target of study by microbiologists . Other rivers and streams have been covered over or converted to run in tunnels due to human development. These rivers do not typically host any life, and are often used only for stormwater or flood control. One such example
2035-538: A land supposedly called Wingandacoa . "Virginia" was originally a term used to refer to England's entire North American possession and claim along the east coast from the 34th parallel (close to Cape Fear ) north to 45th parallel . This area included a large section of Canada and the shores of Acadia . The name Virginia for a region in North America may have been originally suggested by Raleigh, who named it for Queen Elizabeth I in approximately 1584. In addition,
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#17328445072802220-495: A large scale. This has been attributed to unusually large floods destroying infrastructure; however, there is evidence that permanent changes to climate causing higher aridity and lower river flow may have been the determining factor in what river civilizations succeeded or dissolved. Water wheels began to be used at least 2,000 years ago to harness the energy of rivers. Water wheels turn an axle that can supply rotational energy to move water into aqueducts , work metal using
2405-548: A peak in the 1970s, when between two or three dams were completed every day, and has since begun to decline. New dam projects are primarily focused in China , India , and other areas in Asia . The first civilizations of Earth were born on floodplains between 5,500 and 3,500 years ago. The freshwater, fertile soil, and transportation provided by rivers helped create the conditions for complex societies to emerge. Three such civilizations were
2590-674: A proprietary charter to two competing branches of the Virginia Company, which investors supported. These were the Plymouth Company and the Virginia Company of London . By the terms of the charter, the Plymouth Company was permitted to establish a colony of 100 sq mi (260 km ) between the 38th parallel and the 45th parallel (roughly between Chesapeake Bay and the current U.S.–Canada border). The London Company
2775-533: 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
2960-644: A relatively low percentage of the overall population, as opposed to the earlier massacre (the 1622 attack had wiped out a third; that of 1644 barely a tenth). This was followed by an effort by the settlers to decimate the Powhatan. In July, they marched against the Pamunkey , Chickahominy , and Powhatan proper; and south of the James, against the Appomattoc , Weyanoke , Warraskoyak, and Nansemond , as well as two Carolina tribes,
3145-583: 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
3330-866: A ritualistic sense has been compared to the Christian ritual of baptism , famously the Baptism of Jesus in the Jordan River . Floods also appear in Norse mythology , where the world is said to emerge from a void that eleven rivers flowed into. Aboriginal Australian religion and Mesoamerican mythology also have stories of floods, some of which contain no survivors, unlike the Abrahamic flood. Along with mythological rivers, religions have also cared for specific rivers as sacred rivers. The Ancient Celtic religion saw rivers as goddesses. The Nile had many gods attached to it. The tears of
3515-425: A river can take several forms. Tidal rivers (often part of an estuary ) have their levels rise and fall with the tide . Since the levels of these rivers are often already at or near sea level, the flow of alluvium and the brackish water that flows in these rivers may be either upriver or downriver depending on the time of day. Rivers that are not tidal may form deltas that continuously deposit alluvium into
3700-460: A section of the river behind them into a lake or reservoir. This can provide nearby cities with a predictable supply of drinking water. Hydroelectricity is desirable as a form of renewable energy that does not require any inputs beyond the river itself. Dams are very common worldwide, with at least 75,000 higher than 6 feet (1.8 m) in the U.S. Globally, reservoirs created by dams cover 193,500 square miles (501,000 km ). Dam-building reached
3885-622: A six-mile-long palisade was completed across the Virginia Peninsula . The palisade provided some security from attacks by the Virginia Indians for colonists farming and fishing lower on the Peninsula from that point. On April 18, 1644, Opechancanough again tried to force the English to abandon the region with another series of coordinated attacks, killing almost 500 colonists. However, this was
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#17328445072804070-605: A smaller proportion of the growing population than had been killed in the 1622 attacks. In 1620, a successor to the Plymouth Company sent colonists to the New World aboard the Mayflower . Known as Pilgrims , they successfully established a settlement in what became Massachusetts . The portion of what had been Virginia north of the 40th parallel became known as New England , according to books written by Captain John Smith , who had made
4255-419: A truce with the Powhatan and proposed a toast using liquor laced with poison. 200 Virginia Indians were killed or made ill by the poison, and 50 more were slaughtered by the colonists. For over a decade, the English settlers attacked the Powhatan, targeting their settlements as part of a scorched earth policy. The settlers systematically razed villages, captured children, and seized or destroyed crops. By 1634,
4440-567: A voyage there. In 1624, the charter of the Virginia Company was revoked by King James I, and the Virginia Colony was transferred to royal authority in the form of a crown colony . Subsequent charters for the Maryland Colony in 1632 and to the eight lords proprietors of the Province of Carolina in 1663 and 1665 further reduced the Virginia Colony to roughly the coastal borders it held until
4625-438: A water body is that body's riparian zone . Plants in the riparian zone of a river help stabilize its banks to prevent erosion and filter alluvium deposited by the river on the shore, including processing the nitrogen and other nutrients it contains. Forests in a riparian zone also provide important animal habitats . River ecosystems have also been categorized based on the variety of aquatic life they can sustain, also known as
4810-512: A water cycle that involved precipitation. The term flumen , in planetary geology , refers to channels on Saturn 's moon Titan that may carry liquid. Titan's rivers flow with liquid methane and ethane . There are river valleys that exhibit wave erosion , seas, and oceans. Scientists hope to study these systems to see how coasts erode without the influence of human activity, something that isn't possible when studying terrestrial rivers. Colony of Virginia The Colony of Virginia
4995-586: A well-coordinated series of surprise attacks on multiple English colonial settlements along both sides of a 50-mile (80 km) long stretch of the James River, which took place early on the morning of March 22, 1622. This event resulted in the deaths of 347 colonists (including men, women, and children) and the abduction of many others. The massacre caught most of the Virginia Colony by surprise and virtually wiped out several entire communities, including Henricus and Wolstenholme Towne at Martin's Hundred . Jamestown
5180-445: Is a tributary , and the place they meet is a confluence . Rivers must flow to lower altitudes due to gravity . The bed of a river is typically within a river valley between hills or mountains . Rivers flowing through an impermeable section of land such as rocks will erode the slopes on the sides of the river. When a river carves a plateau or a similar high-elevation area, a canyon can form, with cliffs on either side of
5365-515: Is a natural freshwater stream that flows on land or inside caves towards another body of water at a lower elevation , such as an ocean , lake , or another river. A river may run dry before reaching the end of its course if it runs out of water, or only flow during certain seasons. Rivers are regulated by the water cycle , the processes by which water moves around the Earth. Water first enters rivers through precipitation , whether from rainfall,
5550-496: Is also important for the lumber industry , as logs can be shipped via river. Countries with dense forests and networks of rivers like Sweden have historically benefited the most from this method of trade. The rise of highways and the automobile has made this practice less common. One of the first large canals was the Canal du Midi , connecting rivers within France to create a path from
5735-552: Is an ancient dam built on the Nile 4,500 years ago. The Ancient Roman civilization used aqueducts to transport water to urban areas . Spanish Muslims used mills and water wheels beginning in the seventh century. Between 130 and 1492, larger dams were built in Japan, Afghanistan, and India, including 20 dams higher than 15 metres (49 ft). Canals began to be cut in Egypt as early as 3000 BC, and
Delaware River - Misplaced Pages Continue
5920-450: 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
6105-448: Is at a higher elevation than the river itself, and in these areas, water flows downhill into the river. The headwaters of a river are the smaller streams that feed a river, and make up the river's source. These streams may be small and flow rapidly down the sides of mountains . All of the land uphill of a river that feeds it with water in this way is in that river's drainage basin or watershed. A ridge of higher elevation land
6290-405: Is because any natural impediment to the flow of the river may cause the current to deflect in a different direction. When this happens, the alluvium carried by the river can build up against this impediment, redirecting the course of the river. The flow is then directed against the opposite bank of the river, which will erode into a more concave shape to accommodate the flow. The bank will still block
6475-453: Is correlated with and thus can be used to predict certain data points related to rivers, such as the size of the drainage basin (drainage area), and the length of the channel. The ecosystem of a river includes the life that lives in its water, on its banks, and in the surrounding land. The width of the channel of a river, its velocity, and how shaded it is by nearby trees. Creatures in a river ecosystem may be divided into many roles based on
6660-497: Is in part because of a projected loss of snowpack in mountains, meaning that melting snow can't replenish rivers during warm summer months, leading to lower water levels. Lower-level rivers also have warmer temperatures, threatening species like salmon that prefer colder upstream temperatures. Attempts have been made to regulate the exploitation of rivers to preserve their ecological functions. Many wetland areas have become protected from development. Water restrictions can prevent
6845-621: 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 the colony's fledgling settlements. Lord de la Warr arrived with 150 soldiers in time to prevent
7030-589: Is now Maine . Approximately three months later, the group landed on a wooded peninsula where the Kennebec River meets the Atlantic Ocean and began building Fort St. George. By the end of the year, limited resources caused half of the colonists to return to England. The remaining 45 sailed home late the next year, and the Plymouth company fell dormant. In 1609, with the abandonment of the Plymouth Company settlement,
7215-402: Is part of permafrost ice caps, or trace amounts of water vapor in the atmosphere. However, there is evidence that rivers flowed on Mars for at least 100,000 years. The Hellas Planitia is a crater left behind by an impact from an asteroid. It has sedimentary rock that was formed 3.7 billion years ago, and lava fields that are 3.3 billion years old. High resolution images of the surface of
7400-560: Is rarely static, the exact location of a river border may be called into question by countries. The Rio Grande between the United States and Mexico is regulated by the International Boundary and Water Commission to manage the right to fresh water from the river, as well as mark the exact location of the border. Up to 60% of fresh water used by countries comes from rivers that cross international borders. This can cause disputes between countries that live upstream and downstream of
7585-561: Is slow. A number of oil spills have taken place in the Delaware over the years. The National Marine Fisheries Service is considering designating sixteen rivers as endangered habitat for the Atlantic sturgeon which would require more attention to be given to uses of the rivers that affect the fish. The river is part of the National Wild and Scenic Rivers System . River A river
Delaware River - Misplaced Pages Continue
7770-614: Is that of the Mississippi River , whose drainage basin covers 40% of the contiguous United States . The river was then used for shipping crops from the American Midwest and cotton from the American South to other states as well as the Atlantic Ocean. The role of urban rivers has evolved from when they were a center of trade, food, and transportation to modern times when these uses are less necessary. Rivers remain central to
7955-539: Is the Sunswick Creek in New York City, which was covered in the 1800s and now exists only as a sewer-like pipe. While rivers may flow into lakes or man-made features such as reservoirs , the water they contain will always tend to flow down toward the ocean . However, if human activity siphons too much water away from a river for other uses, the riverbed may run dry before reaching the sea. The outlets mouth of
8140-808: Is what typically separates drainage basins; water on one side of a ridge will flow into one set of rivers, and water on the other side will flow into another. One example of this is the Continental Divide of the Americas in the Rocky Mountains . Water on the western side of the divide flows into the Pacific Ocean , whereas water on the other side flows into the Atlantic Ocean . Not all precipitation flows directly into rivers; some water seeps into underground aquifers . These, in turn, can still feed rivers via
8325-610: The Susan Constant , and two smaller ships, the Godspeed , and the Discovery , with 105 men and boys, plus 39 sailors. After an unusually long voyage of 144 days, they arrived at the mouth of the Chesapeake Bay and came ashore at the point where the southern side of the bay meets the Atlantic Ocean, an event that has come to be called the "First Landing". They erected a cross and named
8510-475: The weroance Necotowance and the subtribes formerly in the confederacy each became tributaries to the King of England. At the same time, a racial frontier was delineated between Indian and English settlements, with members of each group forbidden to cross to the other side except by a special pass obtained at one of the newly erected border forts. The extent of the Virginia Colony open to patent by English colonists
8695-587: The 2024 Summer Olympics . Another example is the restoration of the Isar in Munich from being a fully canalized channel with hard embankments to being wider with naturally sloped banks and vegetation. This has improved wildlife habitat in the Isar, and provided more opportunities for recreation in the river. As a natural barrier , rivers are often used as a border between countries , cities, and other territories . For example,
8880-626: The American Revolution . (The border with North Carolina was disputed until surveyed by William Byrd II in 1728.) After twelve years of peace following the Indian Wars of 1622–1632, another Anglo–Powhatan War began on March 18, 1644, as a last effort by the remnants of the Powhatan Confederacy, still under Opechancanough, to dislodge the English settlers of the Virginia Colony. Around 500 colonists were killed, but that number represented
9065-553: 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
9250-479: The Atlantic Ocean to the Mediterranean Sea . The nineteenth century saw canal-building become more common, with the U.S. building 4,400 miles (7,100 km) of canals by 1830. Rivers began to be used by cargo ships at a larger scale, and these canals were used in conjunction with river engineering projects like dredging and straightening to ensure the efficient flow of goods. One of the largest such projects
9435-649: The Chowanoke and Secotan . In February–March 1645, the colony ordered the construction of four frontier forts: Fort Charles at the falls of the James, Fort James on the Chickahominy , Fort Royal at the falls of the York and Fort Henry at the falls of the Appomattox , where the modern city of Petersburg is located. In August 1645, the forces of Governor William Berkeley stormed Opechancanough's stronghold. All captured males in
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#17328445072809620-481: 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 the Delaware River's tributaries. As a result, in 1928 the city decided to draw water from
9805-559: The Discovery for the colonists' use. However, death from disease and conflicts with the Native Americans took a fearsome toll on the colonists. Despite attempts at mining minerals, growing silk, and exporting the native Virginia tobacco, no profitable exports had been identified, and it was unclear whether the settlement would survive financially. The Powhatan Confederacy was a confederation of numerous linguistically related tribes in
9990-776: 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, the EPA involved the Delaware County Regional Water Authority (DELCORA) where they set up a plan to spend around $ 200 million to help rid
10175-424: The English Civil War . Under the tenure of Crown Governor William Berkeley (1642–1652; 1660–1677), the population expanded from 8,000 in 1642 to 40,000 in 1677. Despite the resistance of the Virginia Cavaliers , Virginian Puritan Richard Bennett was made governor answering to Oliver Cromwell in 1652, followed by two more nominal "commonwealth governors". Nonetheless, the colony was rewarded for its loyalty to
10360-429: The Industrial Revolution as a source of power for textile mills and other factories, but were eventually supplanted by steam power . Rivers became more industrialized with the growth of technology and the human population . As fish and water could be brought from elsewhere, and goods and people could be transported via railways , pre-industrial river uses diminished in favor of more complex uses. This meant that
10545-433: The Kingdom of Great Britain in 1775, before the Declaration of Independence was officially adopted, the Virginia Colony became the Commonwealth of Virginia , one of the original thirteen states of the United States, adopting as its official slogan "The Old Dominion". The entire modern states of West Virginia , Kentucky , Indiana , and Illinois , and portions of Ohio and Western Pennsylvania were later created from
10730-402: The Lamari River in New Guinea separates the Angu and the Fore people in New Guinea. The two cultures speak different languages and rarely mix. 23% of international borders are large rivers (defined as those over 30 meters wide). The traditional northern border of the Roman Empire was the Danube , a river that today forms the border of Hungary and Slovakia . Since the flow of a river
10915-425: 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 the Delaware Aqueduct . The Delaware River has two branches that rise in the Catskill Mountains of New York:
11100-423: The Nile and the Ganges . The Quran describes these four rivers as flowing with water, milk, wine, and honey, respectively. The book of Genesis also contains a story of a great flood . Similar myths are present in the Epic of Gilgamesh , Sumerian mythology, and in other cultures. In Genesis, the flood's role was to cleanse Earth of the wrongdoing of humanity. The act of water working to cleanse humans in
11285-522: 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 was fruit, carried by 490 ships, followed by petroleum, and containers, with 410 and 381 ships, respectively. The biggest category of exports
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#173284450728011470-416: The Province of Virginia , and occasionally as the Dominion and Colony of Virginia or His Majesty's Most Ancient Colloney and Dominion of Virginia . According to tradition, in gratitude for the loyalty of Virginians to the crown during the English Civil War , Charles II gave it the title of "Old Dominion". The colony seal stated from Latin en dat virginia quintum , in English 'Behold, Virginia gives
11655-493: The River Continuum Concept . "Shredders" are organisms that consume this organic material. The role of a "grazer" or "scraper" organism is to feed on the algae that collects on rocks and plants. "Collectors" consume the detritus of dead organisms. Lastly, predators feed on living things to survive. The river can then be modeled by the availability of resources for each creature's role. A shady area with deciduous trees might experience frequent deposits of organic matter in
11840-408: The River Lethe to forget their previous life. Rivers also appear in descriptions of paradise in Abrahamic religions , beginning with the story of Genesis . A river beginning in the Garden of Eden waters the garden and then splits into four rivers that flow to provide water to the world. These rivers include the Tigris and Euphrates , and two rivers that are possibly apocryphal but may refer to
12025-405: 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
12210-413: The Sea Venture was the mission's Vice Admiral Christopher Newport. Hundreds of new colonists were aboard the ships. However, the weather was to affect the mission drastically. A few days out of London, the nine ships of the third supply mission encountered a hurricane in the Atlantic Ocean. They became separated during the three days the storm lasted. Admiral Somers had the Sea Venture , carrying most of
12395-419: The Sumerians in the Tigris–Euphrates river system , the Ancient Egyptian civilization in the Nile, and the Indus Valley Civilization on the Indus River . The desert climates of the surrounding areas made these societies especially reliant on rivers for survival, leading to people clustering in these areas to form the first cities . It is also thought that these civilizations were the first to organize
12580-431: 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 is a major barrier to travel between New Jersey and Pennsylvania . Most of the larger bridges are tolled only westbound, and are owned by
12765-403: 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 the Upper , Middle , and Lower Delaware National Scenic Rivers . At Trenton, New Jersey ,
12950-485: The climate . The alluvium carried by rivers, laden with minerals, is deposited into the floodplain when the banks spill over, providing new nutrients to the soil, allowing them to support human activity like farming as well as a host of plant and animal life. Deposited sediment from rivers can form temporary or long-lasting fluvial islands . These islands exist in almost every river. About half of all waterways on Earth are intermittent rivers , which do not always have
13135-462: The cultural identity of cities and nations. Famous examples include the River Thames 's relationship to London , the Seine to Paris , and the Hudson River to New York City . The restoration of water quality and recreation to urban rivers has been a goal of modern administrations. For example, swimming was banned in the Seine for over 100 years due to concerns about pollution and the spread of E. coli , until cleanup efforts to allow its use in
13320-478: The discharge of a river, the amount of water passing through it at a particular time. The flow of a river can act as a means of transportation for plant and animal species, as well as a barrier. For example, the Amazon River is so wide in parts that the variety of species on either side of its basin are distinct. Some fish may swim upstream to spawn as part of a seasonal migration . Species that travel from
13505-465: The extinction of some species, and lowered the amount of alluvium flowing through rivers. Decreased snowfall from climate change has resulted in less water available for rivers during the summer. Regulation of pollution, dam removal , and sewage treatment have helped to improve water quality and restore river habitats. A river is a natural flow of freshwater that flows on or through land towards another body of water downhill. This flow can be into
13690-402: The runoff of water down a slope, the melting of glaciers or snow , or seepage from aquifers beneath the surface of the Earth. Rivers flow in channeled watercourses and merge in confluences to form drainage basins , areas where surface water eventually flows to a common outlet. Rivers have a great effect on the landscape around them. They may regularly overflow their banks and flood
13875-436: The sea . The sediment yield of a river is the quantity of sand per unit area within a watershed that is removed over a period of time. The monitoring of the sediment yield of a river is important for ecologists to understand the health of its ecosystems, the rate of erosion of the river's environment, and the effects of human activity. Rivers rarely run in a straight direction, instead preferring to bend or meander . This
14060-521: The water table , the groundwater beneath the surface of the land stored in the soil . Water flows into rivers in places where the river's elevation is lower than that of the water table. This phenomenon is why rivers can still flow even during times of drought . Rivers are also fed by the melting of snow glaciers present in higher elevation regions. In summer months, higher temperatures melt snow and ice, causing additional water to flow into rivers. Glacier melt can supplement snow melt in times like
14245-835: The Crown . The Virginia Company's two settlements, Virginia and Bermuda (Bermuda's Puritans were expelled as the Eleutheran Adventurers , settling the Bahamas under William Sayle ), Antigua and Barbados were conspicuous in their loyalty to the Crown and were singled out by the Rump Parliament in An Act for prohibiting Trade with the Barbadoes, Virginia, Bermuda and Antego in October 1650. This dictated that: [D]ue punishment [be] inflicted upon
14430-645: 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, 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
14615-707: 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
14800-549: 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 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
14985-415: 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
15170-480: 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 the bay's outlet to the Atlantic Ocean between Cape May and Cape Henlopen . Before
15355-769: 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
15540-425: The English either stay in their fort or leave Virginia. Enraged, De la Warr had the hand of a Paspahegh captive cut off and sent him to the paramount chief with another ultimatum: Return all English subjects and property, or the neighboring villages would be burned. This time, Powhatan did not respond. On August 9, 1610, tired of waiting for a response from the Powhatan, West sent George Percy with 70 men to attack
15725-664: The French in South Carolina ( Charlesfort , 1562–1563). Farther south, the Spanish colony of Spanish Florida , centered on St. Augustine , was established in 1565, while to the north, the French were establishing settlements in what is now Canada ( Charlesbourg-Royal briefly occupied 1541–1543; Port Royal , established in 1605). In 1583, Sir Humphrey Gilbert established a charter in Newfoundland . Once established, he and his crew abandoned
15910-647: 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
16095-518: The London Company organized another supply mission. They set sail from London on April 1, 1610. Just after the survivors of the Starving Time and those who had joined them from Bermuda had abandoned Jamestown, the ships of the new supply mission sailed up the James River with food, supplies, a doctor, and more colonists. Lord Delaware was determined that the colony was to survive, and he intercepted
16280-486: The London Company's Virginia charter was adjusted to include the territory north of the 34th parallel and south of the 40th parallel , with its original coastal grant extended "from sea to sea". Thus, according to James I's writ, the Virginia Colony in its original sense extended to the coast of the Pacific Ocean, in what is now California, with all the land in between belonging to Virginia. For practical purposes, though,
16465-580: The Netherlands all had competing claims to the region, none of these prevented the English from becoming the first European power to colonize successfully the Mid-Atlantic coastline. The Spanish had made earlier attempts in what is now Georgia ( San Miguel de Gualdape , 1526–1527; several Spanish missions in Georgia between 1568 and 1684), South Carolina ( Santa Elena , 1566–1587), North Carolina ( Joara , 1567–1568) and Virginia ( Ajacán Mission , 1570–1571); and by
16650-474: 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
16835-538: The Paspahegh capital, burning the houses and cutting down their cornfields. They killed 65 to 75 Powhatan and captured one of Wowinchopunk's wives and her children. Returning downstream, Percy's men threw the children overboard and shot out "their Braynes in the water". The queen was put to the sword in Jamestown. The Paspahegh never recovered from this attack and abandoned their town. Another small force sent with Argall against
17020-702: 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
17205-583: 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
17390-501: 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
17575-708: 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
17760-622: The Warraskoyaks found that they had already fled, and they destroyed an abandoned Warraskoyak village and the surrounding cornfields. This event triggered the first Anglo-Powhatan War . Among the individuals who had briefly abandoned Jamestown was John Rolfe , a Sea Venture survivor who had lost his wife and son in Bermuda. He was a businessman from London with some untried seeds for new, sweeter strains of tobacco he brought from Bermuda and some novel marketing ideas. It would turn out that Rolfe held
17945-667: 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
18130-523: The York (Pamunkey) river. Necotowance thus ceded the English vast tracts of still-uncolonized land, much of it between the James and Blackwater. English settlements on the peninsula north of the York and below the Poropotank were also allowed, as they had already been there since 1640. While the newer Puritan colonies, most notably Massachusetts , were dominated by Parliamentarians , the older colonies sided with
18315-612: 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
18500-483: 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
18685-609: The area of their rights. The London company formed Jamestown in its exclusive territory, while the Plymouth company formed the Popham Colony in its exclusive territory near what is now Phippsburg, Maine. The Popham colony quickly failed because of famine, disease, and conflicts with local Native American tribes in the first two years. The London Company hired Captain Christopher Newport to lead its expedition. On December 20, 1606, he set sail from England with his flagship ,
18870-422: 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, was hired to find a western route to Cathay (China), but his encounters set
19055-695: The bodies of humans and animals worldwide, as well as in the soil, with potentially negative health effects. Research into how to remove it from the environment, and how harmful exposure is, is ongoing. Fertilizer from farms can lead to a proliferation of algae on the surface of rivers and oceans, which prevents oxygen and light from dissolving into water, making it impossible for underwater life to survive in these so-called dead zones . Urban rivers are typically surrounded by impermeable surfaces like stone, asphalt , and concrete. Cities often have storm drains that direct this water to rivers. This can cause flooding risk as large amounts of water are directed into
19240-416: 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 the Delaware River as
19425-469: The claim. The company's possession of Bermuda was made official in 1612 when the third and final charter extended the boundaries of Virginia far enough out to sea to encompass Bermuda. Upon their arrival at Jamestown, the survivors of the Sea Venture discovered that the 10-month delay had greatly aggravated other adverse conditions. Seven of the other ships had arrived carrying more colonists but little in
19610-414: The colonists rarely ventured far inland to what was known as the "Virginia Wilderness." For the third supply, the London Company had a new ship built. The Sea Venture was designed to emit additional colonists and transport supplies. It became the flagship of the admiral of the convoy, Sir George Somers . The third supply was the largest, with eight other ships joining the Sea Venture . The captain of
19795-434: The colony because of the war between England and Spain. When he finally did return in 1590, he found the colony abandoned. The houses were intact, but the colonists had disappeared. Although there are numerous theories about the fate of the colony, it remains a mystery and has come to be known as the "Lost Colony" . Two English children were born in this colony; the first was named Virginia Dare ( Dare County, North Carolina ,
19980-466: 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 is thought to derive from French de la Guerre . It has often been reported that the river and bay received
20165-405: The complete draining of rivers. Limits on the construction of dams, as well as dam removal , can restore the natural habitats of river species. Regulators can also ensure regular releases of water from dams to keep animal habitats supplied with water. Limits on pollutants like pesticides can help improve water quality. Today, the surface of Mars does not have liquid water. All water on Mars
20350-610: The departing ships about 10 miles (16 km) downstream of Jamestown. The colonists thanked Providence for the colony's salvation. West proved far harsher and more belligerent toward the Indians than any of his predecessors, engaging in wars of conquest against them. He first sent Thomas Gates to drive off the Kecoughtan from their village on July 9, 1610, then gave Chief Powhatan an ultimatum to either return all English subjects and property, or face war. Powhatan responded by insisting that
20535-519: 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
20720-489: The eastern part of Virginia. The Powhatan Confederacy controlled a territory known as Tsenacommacah, which roughly corresponded with the Tidewater region of Virginia. It was in this territory that the English established Jamestown. At the time of the English arrival, the Powhatan were led by the paramount chief Wahunsenacawh, known to the English as Chief Powhatan . On May 31, 1607, about 100 men and boys left England for what
20905-436: The effect of normalizing the effects of rivers; the greatest floods are smaller and more predictable, and larger sections are open for navigation by boats and other watercraft. A major effect of river engineering has been a reduced sediment output of large rivers. For example, the Mississippi River produced 400 million tons of sediment per year. Due to the construction of reservoirs , sediment buildup in man-made levees , and
21090-469: 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
21275-641: The era of the Protectorate and Commonwealth of England . From 1619 to 1775/1776, the colonial legislature of Virginia was the General Assembly, which governed in conjunction with a colonial governor . Jamestown remained the capital of the Virginia Colony until 1699; from 1699 until its dissolution, the capital was in Williamsburg . The colony experienced its first significant political turmoil with Bacon's Rebellion of 1676. After declaring independence from
21460-517: 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 the area within less than a week: first Hurricane Connie and then Hurricane Diane , which was, and still is,
21645-484: The fifth', with Virginia claimed as the fifth English dominion after England, France , Scotland and Ireland . The Commonwealth of Virginia maintains "Old Dominion" as its state nickname . The athletic teams of the University of Virginia are known as the " Cavaliers ", referring to supporters of Charles II, and Virginia has a public university called " Old Dominion University ". Although Spain, France, Sweden, and
21830-826: The first human civilizations . The organisms that live around or in a river such as fish , aquatic plants , and insects have different roles, including processing organic matter and predation . Rivers have produced abundant resources for humans, including food , transportation , drinking water , and recreation. Humans have engineered rivers to prevent flooding, irrigate crops, perform work with water wheels , and produce hydroelectricity from dams. People associate rivers with life and fertility and have strong religious, political, social, and mythological attachments to them. Rivers and river ecosystems are threatened by water pollution , climate change , and human activity. The construction of dams, canals , levees , and other engineered structures has eliminated habitats, has caused
22015-451: The fish zonation concept. Smaller rivers can only sustain smaller fish that can comfortably fit in its waters, whereas larger rivers can contain both small fish and large fish. This means that larger rivers can host a larger variety of species. This is analogous to the species-area relationship , the concept of larger habitats being host to more species. In this case, it is known as the species-discharge relationship, referring specifically to
22200-665: The floating of wood on rivers to transport it, was especially important. Rivers also were an important source of drinking water . For civilizations built around rivers, fish were an important part of the diet of humans. Some rivers supported fishing activities, but were ill-suited to farming, such as those in the Pacific Northwest . Other animals that live in or near rivers like frogs , mussels , and beavers could provide food and valuable goods such as fur . Humans have been building infrastructure to use rivers for thousands of years. The Sadd el-Kafara dam near Cairo , Egypt,
22385-437: 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 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
22570-412: The flow of the river beneath its surface. These help rivers flow straighter by increasing the speed of the water at the middle of the channel, helping to control floods. Levees are also used for this purpose. They can be thought of as dams constructed on the sides of rivers, meant to hold back water from flooding the surrounding area during periods of high rainfall. They are often constructed by building up
22755-399: The flow, causing it to reflect in the other direction. Thus, a bend in the river is created. Rivers may run through low, flat regions on their way to the sea. These places may have floodplains that are periodically flooded when there is a high level of water running through the river. These events may be referred to as "wet seasons' and "dry seasons" when the flooding is predictable due to
22940-650: The form of leaves. In this type of ecosystem, collectors and shredders will be most active. As the river becomes deeper and wider, it may move slower and receive more sunlight . This supports invertebrates and a variety of fish , as well as scrapers feeding on algae. Further downstream, the river may get most of its energy from organic matter that was already processed upstream by collectors and shredders. Predators may be more active here, including fish that feed on plants, plankton , and other fish. The flood pulse concept focuses on habitats that flood seasonally, including lakes and marshes . The land that interfaces with
23125-502: The goddess Isis were said to be the cause of the river's yearly flooding, itself personified by the goddess Hapi . Many African religions regard certain rivers as the originator of life. In Yoruba religion , Yemọja rules over the Ogun River in modern-day Nigeria and is responsible for creating all children and fish. Some sacred rivers have religious prohibitions attached to them, such as not being allowed to drink from them or ride in
23310-428: The irrigation of desert environments for growing food. Growing food at scale allowed people to specialize in other roles, form hierarchies, and organize themselves in new ways, leading to the birth of civilization. In pre-industrial society , rivers were a source of transportation and abundant resources. Many civilizations depended on what resources were local to them to survive. Shipping of commodities, especially
23495-488: The key to the colony's economic success. By 1612, Rolfe's strains of tobacco had been successfully cultivated and exported, establishing a first cash crop for export. Plantations and new outposts sprung up starting with Henricus , initially both upriver and downriver along the navigable portion of the James and thereafter along the other rivers and waterways of the area. The settlement at Jamestown could finally be considered permanently established. A period of peace followed
23680-431: 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
23865-434: The late summer, when there may be less snow left to melt, helping to ensure that the rivers downstream of the glaciers have a continuous supply of water. Rivers flow downhill, with their direction determined by gravity . A common misconception holds that all or most rivers flow from North to South, but this is not true. As rivers flow downstream, they eventually merge to form larger rivers. A river that feeds into another
24050-469: The level of river branching in a drainage basin. Several systems of stream order exist, one of which is the Strahler number . In this system, the first tributaries of a river are 1st order rivers. When two 1st order rivers merge, the resulting river is 2nd order. If a river of a higher order and a lower order merge, the order is incremented from whichever of the previous rivers had the higher order. Stream order
24235-561: The local ecosystems of rivers needed less protection as humans became less reliant on them for their continued flourishing. River engineering began to develop projects that enabled industrial hydropower , canals for the more efficient movement of goods, as well as projects for flood prevention . River transportation has historically been significantly cheaper and faster than transportation by land. Rivers helped fuel urbanization as goods such as grain and fuel could be floated downriver to supply cities with resources. River transportation
24420-543: The marriage in 1614 of colonist Rolfe to Pocahontas , the daughter of Chief Powhatan. Another colonial charter was issued in 1611. The relations with the Natives took a turn for the worse after the death of Pocahontas in England and the return of Rolfe and other colonial leaders in May 1617. Disease, poor harvests, and the growing demand for land to cultivate tobacco caused hostilities to escalate. After Chief Powhatan died in 1618, he
24605-407: The mechanical shadoof began to be used to raise the elevation of water. Drought years harmed crop yields, and leaders of society were incentivized to ensure regular water and food availability to remain in power. Engineering projects like the shadoof and canals could help prevent these crises. Despite this, there is evidence that floodplain-based civilizations may have been abandoned occasionally at
24790-400: The migration routes of fish and destroy habitats. Rivers that flow freely from headwaters to the sea have better water quality, and also retain their ability to transport nutrient-rich alluvium and other organic material downstream, keeping the ecosystem healthy. The creation of a lake changes the habitat of that portion of water, and blocks the transportation of sediment, as well as preventing
24975-411: The mission's supplies, deliberately driven aground onto the reefs of Bermuda to avoid sinking. However, while there was no loss of life, the ship was wrecked beyond repair, stranding its survivors on the uninhabited archipelago , to which they laid claim for England. The survivors at Bermuda eventually built two smaller ships, and most of them continued to Jamestown, leaving a few on Bermuda to secure
25160-818: 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
25345-558: 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, the Duke of York granted Penn's request for access to the sea and leased him
25530-399: The natural meandering of the river. Dams block the migration of fish such as salmon for which fish ladder and other bypass systems have been attempted, but these are not always effective. Pollution from factories and urban areas can also damage water quality. " Per- and polyfluoroalkyl substances (PFAS) is a widely used chemical that breaks down at a slow rate. It has been found in
25715-429: The natural terrain with soil or clay. Some levees are supplemented with floodways, channels used to redirect floodwater away from farms and populated areas. Dams restrict the flow of water through a river. They can be built for navigational purposes, providing a higher level of water upstream for boats to travel in. They may also be used for hydroelectricity , or power generation from rivers. Dams typically transform
25900-650: The north bank of the James River and Popham Colony on the Kennebec River in modern-day Maine , both in 1607. The Popham colony quickly failed because of famine, disease, and conflicts with local Native American tribes in the first two years. Jamestown occupied land belonging to the Powhatan Confederacy ; it was also on the brink of failure before the arrival of a new group of settlers and supplies by ship in 1610. Tobacco became Virginia's first profitable export,
26085-425: The plain show evidence of a river network, and even river deltas. These images reveal channels formed in the rock, recognized by geologists who study rivers on Earth as being formed by rivers, as well as "bench and slope" landforms, outcroppings of rock that show evidence of river erosion. Not only do these formations suggest that rivers once existed, but that they flowed for extensive time periods, and were part of
26270-469: 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
26455-465: The point of land Cape Henry in honor of Henry Frederick, Prince of Wales , the eldest son of King James. They were instructed to select a location inland along a waterway where they would be less vulnerable to the Spanish or other Europeans seeking to establish colonies. They sailed westward into the Bay and reached the mouth of Hampton Roads , stopping at a location now known as Old Point Comfort . Keeping
26640-479: 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
26825-483: The production of which had a significant impact on the society and settlement patterns. In 1624, the Virginia Company's charter was revoked by King James I, and the Virginia Colony was transferred to royal authority as a crown colony . After the English Civil War in the 1640s and 1650s, the Virginia colony was nicknamed "The Old Dominion" by King Charles II for its perceived loyalty to the English monarchy during
27010-448: The removal of natural banks replaced with revetments , this sediment output has been reduced by 60%. The most basic river projects involve the clearing of obstructions like fallen trees. This can scale up to dredging , the excavation of sediment buildup in a channel, to provide a deeper area for navigation. These activities require regular maintenance as the location of the river banks changes over time, floods bring foreign objects into
27195-530: The reverse, death and destruction, especially through floods . This power has caused rivers to have a central role in religion , ritual , and mythology . In Greek mythology , the underworld is bordered by several rivers. Ancient Greeks believed that the souls of those who perished had to be borne across the River Styx on a boat by Charon in exchange for money. Souls that were judged to be good were admitted to Elysium and permitted to drink water from
27380-613: 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
27565-636: 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 the Otter Creek tributary , leading to a water advisory in Philadelphia . With
27750-403: 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 was a pivotal moment in the American Revolution . The Delaware River
27935-597: 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
28120-405: The river, and natural sediment buildup continues. Artificial channels are often constructed to "cut off" winding sections of a river with a shorter path, or to direct the flow of a river in a straighter direction. This effect, known as channelization, has made the distance required to traverse the Missouri River in 116 kilometres (72 mi) shorter. Dikes are channels built perpendicular to
28305-552: The river. Areas of a river with softer rock weather faster than areas with harder rock, causing a difference in elevation between two points of a river. This can cause the formation of a waterfall as the river's flow falls down a vertical drop. A river in a permeable area does not exhibit this behavior and may even have raised banks due to sediment. Rivers also change their landscape through their transportation of sediment , often known as alluvium when applied specifically to rivers. This debris comes from erosion performed by
28490-569: The river. A country that is downstream of another may object to the upstream country diverting too much water for agricultural uses, pollution, as well as the creation of dams that change the river's flow characteristics. For example, Egypt has an agreement with Sudan requiring a specific minimum volume of water to pass into the Nile yearly over the Aswan Dam , to maintain both countries access to water. The importance of rivers throughout human history has given them an association with life and fertility . They have also become associated with
28675-457: The rivers themselves, debris swept into rivers by rainfall, as well as erosion caused by the slow movement of glaciers. The sand in deserts and the sediment that forms bar islands is from rivers. The particle size of the debris is gradually sorted by the river, with heavier particles like rocks sinking to the bottom, and finer particles like sand or silt carried further downriver . This sediment may be deposited in river valleys or carried to
28860-412: The rivers. Due to these impermeable surfaces, these rivers often have very little alluvium carried in them, causing more erosion once the river exits the impermeable area. It has historically been common for sewage to be directed directly to rivers via sewer systems without being treated, along with pollution from industry. This has resulted in a loss of animal and plant life in urban rivers, as well as
29045-541: The said Delinquents, do[es] Declare all and every the said persons in Barbada's, Antego, Bermuda's and Virginia, that have contrived, abetted, aided or assisted those horrid Rebellions, or have since willingly joyned with them, to be notorious Robbers and Traitors, and such as by the Law of Nations are not to be permitted any maner of Commerce or Traffique with any people whatsoever; and do[es] forbid to all maner of persons, Foreiners, and others, all maner of Commerce, Traffique and Correspondency whatsoever, to be used or held with
29230-477: The said Rebels in the Barbada's, Bermuda's, Virginia and Antego, or either of them. The act authorized Parliamentary privateers to act against English vessels trading with the rebellious colonies: "All Ships that Trade with the Rebels may be surprized. Goods and tackle of such ships not to be embezeled, till judgement in the Admiralty; Two or three of the Officers of every ship to be examined upon oath." Virginia's population swelled with Cavaliers during and after
29415-409: The sea from their mouths. Depending on the activity of waves, the strength of the river, and the strength of the tidal current, the sediment can accumulate to form new land. When viewed from above, a delta can appear to take the form of several triangular shapes as the river mouth appears to fan out from the original coastline . In hydrology , a stream order is a positive integer used to describe
29600-414: The sea to breed in freshwater rivers are anadromous. Salmon are an anadromous fish that may die in the river after spawning, contributing nutrients back to the river ecosystem. Modern river engineering involves a large-scale collection of independent river engineering structures that have the goal of flood control , improved navigation, recreation, and ecosystem management. Many of these projects have
29785-556: The shoreline to their right, they then ventured up the largest river, which they named the James , for their king. After exploring at least as far upriver as the confluence of the Appomattox River at present-day Hopewell , they returned downstream to Jamestown Island , which offered a favorable defensive position against enemy ships and deep water anchorage adjacent to the land. Within two weeks, they had constructed their first fort and named their settlement Jamestown. In addition to securing gold and other precious minerals to send back to
29970-412: 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
30155-402: The site and returned to England. On the return trip, Gilbert's ship capsized, and all aboard perished. The charter was abandoned. In 1585, Raleigh sent his first colonization mission to Roanoke Island (in present-day North Carolina) with over 100 male settlers. However, when Sir Francis Drake arrived at the colony in the summer of 1586, the colonists opted to return to England because there
30340-519: The spread of waterborne diseases such as cholera . In modern times, sewage treatment and controls on pollution from factories have improved the water quality of urban rivers. Climate change can change the flooding cycles and water supply available to rivers. Floods can be larger and more destructive than expected, causing damage to the surrounding areas. Floods can also wash unhealthy chemicals and sediment into rivers. Droughts can be deeper and longer, causing rivers to run dangerously low. This
30525-416: 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 the English expelled the Dutch and took control of the New Netherland colony in 1664,
30710-485: The surrounding area, spreading nutrients to the surrounding area. Sediment or alluvium carried by rivers shapes the landscape around it, forming deltas and islands where the flow slows down. Rivers rarely run in a straight line, instead, they bend or meander ; the locations of a river's banks can change frequently. Rivers get their alluvium from erosion , which carves rock into canyons and valleys . Rivers have sustained human and animal life for millennia, including
30895-420: The term Wingandacoa may have influenced the name Virginia." On his next voyage, Raleigh learned that while the chief of the Secotans was indeed called Wingina, the expression wingandacoa heard by the English upon arrival actually meant "What good clothes you wear!" in Carolina Algonquian and was not the name of the country as previously misunderstood. The colony was also known as the Virginia Colony ,
31080-445: 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 the establishment of the United States. The name "Delaware" also came to be used as
31265-409: The territory encompassed, or claimed by, the colony of Virginia at the time of further American independence in July 1776. "Virginia" is the oldest designation for English claims in North America. In 1584, Sir Walter Raleigh sent Philip Amadas and Arthur Barlowe to explore what is now the North Carolina coast. They returned with word of a regional king ( weroance ) named Wingina , who ruled
31450-402: The village over age 11 were deported to Tangier Island . Opechancanough, variously reported to be 92 to 100 years old, was taken to Jamestown. While a prisoner, Opechancanough was shot in the back and killed by a soldier assigned to guard him. His death disintegrated the Powhatan Confederacy into its component tribes, whom the colonists continued to attack. In the peace treaty of October 1646,
31635-433: The waiting investors in England, the survival plan for the Jamestown colonists depended upon regular supplies from England and trade with the Native Americans . They selected a location largely cut off from the mainland with little game for hunting, no natural fresh drinking water, and minimal ground for farming. Captain Newport returned to England twice, delivering the first and second supply missions during 1608 and leaving
31820-401: 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 the Clean Water Act explains how conditions of the river should be stable enough for human fishing and swimming. Even though
32005-574: The way of food and supplies. Combined with drought and hostile relations with the Native Americans , the loss of the supplies that had been aboard the Sea Venture resulted in the Starving Time in late 1609 to May 1610, during which over 80% of the colonists perished. Conditions were so adverse it appears, from skeletal evidence, that the survivors engaged in cannibalism. The survivors from Bermuda had brought few supplies and food with them, and it appeared to all that Jamestown must be abandoned, and it would be necessary to return to England. Samuel Argall
32190-497: 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 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
32375-419: Was a British colonial settlement in North America between 1606 and 1776. The first effort to create an English settlement in the area was chartered in 1584 and established in 1585; the resulting Roanoke Colony lasted for three attempts totaling six years. In 1590, the colony was abandoned. But nearly 20 years later, the colony was re-settled at Jamestown , not far north of the original site. A second charter
32560-402: Was a lack of supply ships, abandoning the colony. Supply ships arrived at the abandoned colony later in 1586; 15 soldiers were left behind to hold the island, but no trace of these men was later found. In 1587, Raleigh sent another group to attempt to establish a permanent settlement. The expedition leader, John White , returned to England for supplies that same year but was unable to return to
32745-451: Was defined as: All the land between the Blackwater and York rivers, and up to the navigable point of each of the major rivers – which were connected by a straight line running directly from modern Franklin on the Blackwater, northwesterly to the Appomattoc village beside Fort Henry, and continuing in the same direction to the Monocan village above the falls of the James, where Fort Charles was built, then turning sharp right, to Fort Royal on
32930-453: Was issued in 1606 and settled in 1607, becoming the first enduring English colony in North America . It followed failed attempts at settlement on Newfoundland by Sir Humphrey Gilbert in 1583 and the Roanoke Colony (in modern eastern North Carolina ) by Sir Walter Raleigh in the late 1580s. The founder of the Jamestown colony was the Virginia Company , chartered by King James I , with its first two settlements being in Jamestown on
33115-420: Was named in her honor), who was among those whose fate is unknown. The word Croatoan was found carved into a tree, the name of a tribe on a nearby island. Following the failure of the previous colonization attempts, England resumed attempts to set up colonies. This time, joint-stock companies were used rather than giving extensive grants to a landed proprietor such as Gilbert or Raleigh. King James granted
33300-431: 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 the pollutants in the river can cause birth defects, infertility among women, and have been linked to cancer. In 2015,
33485-413: 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 the Delaware City Refinery , the Dupont Chambers Works , Oceanport Terminal at Claymont , the Marcus Hook Refinery,
33670-404: Was permitted to establish between the 34th parallel and the 41st parallel (approximately between Cape Fear and Long Island Sound ) and also owned a large portion of Atlantic and Inland Canada. In the area of overlap, the two companies were not permitted to establish colonies within one hundred miles of each other. During 1606, each company organized expeditions to establish settlements within
33855-463: Was spared from destruction because an Indian boy named Chanco learned of the planned attacks from his brother and warned colonist Richard Pace with whom he lived. Pace, after securing himself and his neighbors on the south side of the James River, took a canoe across the river to warn Jamestown, which narrowly escaped destruction. However, there was no time to warn the other settlements. A year later, Captain William Tucker and John Pott worked out
34040-407: Was succeeded by his own younger brother, Opechancanough . On the surface, he maintained friendly relations with the English, negotiating with them through his warrior Nemattanew . Still, by 1622, after Nemattanew had been slain, Opechancanough was ready to order a limited surprise attack on the colonists, hoping to persuade them to move on and settle elsewhere. Chief Opechancanough organized and led
34225-425: Was the captain of one of the seven ships of the third supply that arrived at Jamestown in 1609 after being separated from the Sea Venture , whose fate was unknown. Depositing his passengers and limited supplies, he returned to England with word of the colonists' plight at Jamestown. The king authorized another leader, Thomas West, 3rd Baron De La Warr , later better known as "Lord Delaware", to have greater powers, and
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