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The Bronx River (), approximately long, flows through southeast New York in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
and drains an area of . It is named after colonial settler
Jonas Bronck Jonas Bronck (alternatively Jonas Jonsson Brunk, Jonas Jonasson Bronk, or Jonas Jonassen Bronck) was born around year 1600 and died in 1643. Bronck was an immigrant to the Dutch colony of New Netherland after whom the Bronx River, and by extension ...
. Besides the
Hutchinson River The Hutchinson River is a freshwater stream located in the Bronx, and Southern Westchester County, New York. The river forms in Scarsdale at Brookline Road and flows 10 miles (16 km) south until it empties into Eastchester Bay in ...
, the Bronx River is the only fresh water river in
New York City New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the Un ...
.; all the other rivers within the city are straits and tidal estuaries, and the tidal lower reach of the
Hudson River The Hudson River is a river that flows from north to south primarily through eastern New York. It originates in the Adirondack Mountains of Upstate New York and flows southward through the Hudson Valley to the New York Harbor between N ...
.
It originally rose in what is now the
Kensico Reservoir The Kensico Reservoir is a reservoir spanning the towns of Armonk ( North Castle) and Valhalla ( Mount Pleasant), New York, located 3 miles (5 km) north of White Plains. It was formed by the original earth and gravel Kensico Dam constructed in 18 ...
, in
Westchester County Westchester County is located in the U.S. state of New York. It is the seventh most populous county in the State of New York and the most populous north of New York City. According to the 2020 United States Census, the county had a population ...
north of
New York City New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the Un ...
. With the construction of the Kensico Dam in 1885, however, the river was cut off from its natural headwaters and today a small tributary stream serves as its source. The Bronx River flows south past White Plains, then south-southwest through the northern suburbs in New York, passing through Edgemont, Tuckahoe, Eastchester, and Bronxville. It forms the border between the large cities of
Yonkers Yonkers () is a city in Westchester County, New York, United States. Developed along the Hudson River, it is the third most populous city in the state of New York (state), New York, after New York City and Buffalo, New York, Buffalo. The popul ...
and
Mount Vernon Mount Vernon is an American landmark and former plantation of Founding Father, commander of the Continental Army in the Revolutionary War, and the first president of the United States George Washington and his wife, Martha. The estate is on ...
, and flows into the northern end of
The Bronx The Bronx () is a borough of New York City, coextensive with Bronx County, in the state of New York. It is south of Westchester County; north and east of the New York City borough of Manhattan, across the Harlem River; and north of the New Y ...
, where it divides
East Bronx The East Bronx is the part of the New York City borough of the Bronx which lies east of the Bronx River; this roughly corresponds to the eastern half of the borough. Neighborhoods include: Baychester, Castle Hill, City Island, Co-op City, ...
from
West Bronx The West Bronx is a region in the New York City borough of the Bronx. The region lies west of the Bronx River and roughly corresponds to the western half of the borough. The West Bronx is more densely populated than the East Bronx, and is close ...
, southward through
Bronx Park Bronx Park is a public park along the Bronx River, in the Bronx, New York City. The park is bounded by Southern Boulevard to the southwest, Webster Avenue to the northwest, Gun Hill Road to the north, Bronx Park East to the east, and East 180 ...
,
New York Botanical Garden The New York Botanical Garden (NYBG) is a botanical garden at Bronx Park in the Bronx, New York City. Established in 1891, it is located on a site that contains a landscape with over one million living plants; the Enid A. Haupt Conservatory, ...
, and the
Bronx Zoo The Bronx Zoo (also historically the Bronx Zoological Park and the Bronx Zoological Gardens) is a zoo within Bronx Park in the Bronx, New York. It is one of the largest zoos in the United States by area and is the largest metropolitan zoo in ...
and continues through neighborhoods of the South Bronx. It empties into the
East River The East River is a saltwater tidal estuary in New York City. The waterway, which is actually not a river despite its name, connects Upper New York Bay on its south end to Long Island Sound on its north end. It separates the borough of Quee ...
, a
tidal strait A tidal strait is technically not a river but a strait connecting two oceans or seas. Tidal straits are narrow seaways through which tidal currents flow. Tidal currents are usually unidirectional but sometimes are bidirectional. They are frequen ...
connected to Long Island Sound, between the
Soundview Soundview is a neighborhood on the Clason Point peninsula, on the southern section of the borough of the Bronx in New York City. Its boundaries, starting from the north and moving clockwise, are the Cross-Bronx Expressway to the north, White Plai ...
and Hunts Point neighborhoods. In the 17th century, the river—called by the natives "Aquehung"—served as a boundary between loosely associated bands under
sachem Sachems and sagamores are paramount chiefs among the Algonquians or other Native American tribes of northeastern North America, including the Iroquois. The two words are anglicizations of cognate terms (c. 1622) from different Eastern Al ...
s of the informal confederacy of the
Wecquaesgeek The Wecquaesgeek (also Manhattoe and Manhattan) were a Munsee-speaking band of Wappinger people who once lived along the east bank of the Hudson River in the southwest of today's Westchester County, New York,Their presence on the east bank of the ...
, Europeanized as the
Wappinger The Wappinger () were an Eastern Algonquian Munsee-speaking Native American people from what is now southern New York and western Connecticut. At the time of first contact in the 17th century they were primarily based in what is now Dutches ...
; the east bank of the river was the boundary for the
Siwanoy The Siwanoy () were an Indigenous American band of Wappinger people, who lived in Long Island Sound along the coasts of what are now The Bronx, Westchester County, New York, and Fairfield County, Connecticut. They were one of the western bands of ...
, clammers and fishermen. The same line would be retained when manors were granted to the Dutch and the English. Barbara Shay MacDonald (Scarsdale Historical Society), "The Bronx River: Boundary of Indian Tribes, Colonies, Manors, Cities and Villages"
The Algonkian significance of the name is variously reported; the ''acca-'' element, as represented in the Long Island place-name Accabonac, was deformed into the more familiar, suitably watery European
morpheme A morpheme is the smallest meaningful constituent of a linguistic expression. The field of linguistic study dedicated to morphemes is called morphology. In English, morphemes are often but not necessarily words. Morphemes that stand alone are ...
''aque-''. The tract purchased by
Jonas Bronck Jonas Bronck (alternatively Jonas Jonsson Brunk, Jonas Jonasson Bronk, or Jonas Jonassen Bronck) was born around year 1600 and died in 1643. Bronck was an immigrant to the Dutch colony of New Netherland after whom the Bronx River, and by extension ...
in 1639 lay between the
Harlem River The Harlem River is an tidal strait in New York, United States, flowing between the Hudson River and the East River and separating the island of Manhattan from the Bronx on the New York mainland. The northern stretch, also called the Spuyt ...
and the river that came to be called "Bronck's river".


Pollution

During the 19th and 20th centuries, the river became a natural sewer into which industrial waste was poured every day. An early mill on the industrialized river was the
Lorillard Snuff Mill The Lorillard Snuff Mill now known as the Lillian and Amy Goldman Stone Mill, is the oldest existing tobacco manufacturing building in the United States. It was built around 1840 next to the Bronx River to supplement an earlier building of the s ...
, preserved in the grounds of the
New York Botanical Garden The New York Botanical Garden (NYBG) is a botanical garden at Bronx Park in the Bronx, New York City. Established in 1891, it is located on a site that contains a landscape with over one million living plants; the Enid A. Haupt Conservatory, ...
. With the decline of manufacturing in the area, the river continued to receive
water pollution Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. ...
from the communities that lined its banks. In December 1948, flow of the Bronx River was changed to eliminate a curve in its course in Bronxville, to create land in the old riverbed on which to construct an addition to Lawrence Hospital. During the excavations a large sand bar was uncovered where sand had accumulated at the bend over hundreds of years and made a sandy beach. In the 21st century, environmental groups including the Bronx River Alliance proposed to return the river to its original state as a clean waterway. The river became a favorite project of
U.S. Representative The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the lower chamber of the United States Congress, with the Senate being the upper chamber. Together they c ...
José Serrano, who secured US$14.6 million in federal funding to support the rehabilitation of the waterway, into which some Westchester towns continued to discharge raw sewage intermittently, as
sanitary sewer overflow Sanitary sewer overflow (SSO) is a condition in which untreated sewage is discharged from a sanitary sewer into the environment prior to reaching sewage treatment facilities. When caused by rainfall it is also known as wet weather overflow. Cause ...
s, as late as 2006. Under a November 28, 2006 agreement, the municipalities of Scarsdale, White Plains,
Mount Vernon Mount Vernon is an American landmark and former plantation of Founding Father, commander of the Continental Army in the Revolutionary War, and the first president of the United States George Washington and his wife, Martha. The estate is on ...
and Greenburgh agreed to stop dumping sewage in the Bronx River by May 1, 2007.
Urban runoff Urban runoff is surface runoff of rainwater, landscape irrigation, and car washing created by urbanization. Impervious surfaces (roads, parking lots and sidewalks) are constructed during land development. During rain , storms and other precip ...
pollution continues to be a serious problem for the river. The Bronx River Watershed Coalition, a partnership of local and state agencies, citizen groups and non-profit organizations, have developed watershed management plans to reduce stormwater pollution and improve water quality.


Ecology

Local alewife, taken from a coastal
tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...
in nearby
Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its capita ...
, were released in the river in March 2006. The alewife were expected to
spawn Spawn or spawning may refer to: * Spawn (biology), the eggs and sperm of aquatic animals Arts, entertainment, and media * Spawn (character), a fictional character in the comic series of the same name and in the associated franchise ** '' Spawn: ...
in the river's headwaters. Their offspring would spend the summer in the river, migrate out to sea in the fall, and in three to five years return, like all anadromous fishes, to their spawning grounds. Stocking was intended to be repeated annually for the following five years, to build up the new resident population. The fishes, among a group called "river herring," feed low on the food-chain and help reduce
eutrophication Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytopla ...
. And in fact, several adult alewife were found below the first dam on the river on April 7, 2009. As an analysis revealed they were 3 years old, the assumption of scientists is that these were in fact descendants of the alewife released 3 years before in March 2006. The next step will be to erect
fish ladders A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, Lock (water transport), locks and waterfalls) to facilitate Fish migration#Classification, ...
(aka. fish passageways) over the 3 dams lowest on the river, allowing the alewife access to a portion of the river with more suitable spawning habitat. Actually, by 2015 a fish passageway was built at the 182nd Street dam In February 2007 biologists with the
Wildlife Conservation Society The Wildlife Conservation Society (WCS) is a non-governmental organization headquartered at the Bronx Zoo in New York City, that aims to conserve the world's largest wild places in 14 priority regions. Founded in 1895 as the New York Zoological ...
, which operates the Zoo, spotted a beaver (''Castor canadensis'') in the river. "There has not been a sighting of a beaver lodge or a beaver in New York City for over 200 years. It sounds fantastic, but one of the messages that comes out of this is if you give wildlife a chance it will come back," said John Calvelli, a spokesman for the Society. The beaver is named Jose Serrano, after the Congressman, and was sighted below the East Tremont bridge at Drew Gardens as recently as June, 2009. Beaver had not lived in New York City since the early 19th century when trappers extirpated them completely from the state. In the summer of 2010 a second beaver joined Jose, doubling the beaver population in New York City. Beaver were once important to the city's economy and pair of beaver appear on the city's official seal and flag.


Recreational amenities and wildlife

Along much of its length in Westchester County and the northern Bronx the river is paralleled by the Bronx River Parkway and its associated bicycle path from Bronxville to the
Kensico Dam The Kensico Reservoir is a reservoir spanning the towns of Armonk ( North Castle) and Valhalla ( Mount Pleasant), New York, located 3 miles (5 km) north of White Plains. It was formed by the original earth and gravel Kensico Dam constructed in 188 ...
plaza. A project, the Bronx River Greenway, proposes a unified management plan for the narrow ribbon of riverside green spaces in the stretch of river that passes through Westchester County and the Bronx, as part of the
East Coast Greenway The East Coast Greenway is a pedestrian and bicycle route between Maine and Florida along the East Coast of the United States. In 2020, the Greenway received over 50 million visits. The nonprofit East Coast Greenway Alliance was created in 1991. ...
. It includes
Concrete Plant Park Concrete Plant Park is a public park in the Longwood section of the Bronx, New York City. It consists of located on the west bank of the Bronx River between Westchester Avenue and Bruckner Boulevard. The centerpiece and namesake of the park i ...
on the right bank, below Westchester Avenue and
Starlight Park Starlight Park is a public park located along the Bronx River in the Bronx in New York City. Starlight Park stands on the site of an amusement park of the same name that operated in the first half of the 20th century. The amusement park was ori ...
above there. Construction on the Bronx River Greenway started in October 2016. In the southern Bronx, the river has become a popular destination for urban
canoe A canoe is a lightweight narrow water vessel, typically pointed at both ends and open on top, propelled by one or more seated or kneeling paddlers facing the direction of travel and using a single-bladed paddle. In British English, the ter ...
ing in New York City. It also bisects
Bronx Park Bronx Park is a public park along the Bronx River, in the Bronx, New York City. The park is bounded by Southern Boulevard to the southwest, Webster Avenue to the northwest, Gun Hill Road to the north, Bronx Park East to the east, and East 180 ...
and the Bronx Zoo. A
monorail A monorail (from "mono", meaning "one", and " rail") is a railway in which the track consists of a single rail or a beam. Colloquially, the term "monorail" is often used to describe any form of elevated rail or people mover. More accurat ...
built in the late 20th century takes Zoo customers over the river to an exhibit of Asian animals on the left bank, with a narration presenting the river as the Irrawaddy. Shoelace Park is a one-mile long linear park on the east bank of the Bronx River from 211th to 231st Street in the
Wakefield Wakefield is a cathedral city in West Yorkshire, England located on the River Calder. The city had a population of 99,251 in the 2011 census.https://www.nomisweb.co.uk/census/2011/ks101ew Census 2011 table KS101EW Usual resident population, ...
and Williamsbridge areas of the Bronx. Officially named Bronx River Park, it is more commonly known as Shoelace Park because of its shape. The park was renovated in 2020 to create bicycle and pedestrian paths over what was the original roadbed of the Bronx River Parkway. A small pier at 219th street provides access to the river for canoes and kayaks.


Waterfalls, culverts, storm water outfalls, and inlets

These are listed north to south Vertical obstacles in streams and rivers, such as waterfalls, culverts and water-diversion structures, can impact fish by fragmenting populations and reducing migratory ranges. However, these barriers can also protect fish populations from predators, reduce competition for food and limit the possibility for hybridization and disease. The fragmentation of the Bronx River by dams has eliminated diadromous species from that river system. "Dams have blocked river herring movement on the Bronx River since the 1600’s when European settlers first came to the area. Dams were originally built to run mills for tobacco factories, bleacheries, tanneries and other industries." Restoration programs based on fishway construction and hatcheries may have sustained remnant populations, but large-scale restoration has not been achieved. This is only a partial listing.("At the beginning of the 18th Century, roughly 12 water mills were producing paper, pottery, flour, tapestries, and snuff along the Bronx River") # Inlet. Just south of Butler Road, Scarsdale # Waterfall. Across from Brayton Road, north of the Hartsdale MetroNorth Station # Waterfall. Across from Olmstead Road, north of the Scarsdale MetroNorth Station # Waterfall. Scarsdale MetroNorth Station # Storm water outfall. West side of river. # Storm water outfall. East side of river. # Waterfall. Just north of Tuckahoe MetroNorth Station # Waterfall. Lillian and Amy Goldman Stone Mill AKA The Old Snuff Mill. As of 2015 there are plans to build a fish passage here. # Waterfall. (Bronx Zoo Dam) Opposite Mitsubishi Riverwalk. As of 2015 there are plans to build a fish passage here. # Waterfall. 182nd Street As of 2015 a fish passage exists at this dam.


See also

* Bronx Kill *
List of New York rivers A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby unio ...


References


External links


The Bronx River AllianceBronx River Parkway ReservationNatural Areas ConservancyNatural Resource Group (NRG)New York City Department of Parks and RecreationVideo of Bronx River beavers Dec. 2011NYC DEPRocking the Boat
A river-based community outreach educational program
Hunts Point Express: The Bronx River teaches teens many lessons
{{authority control Rivers of New York (state) Rivers of Westchester County, New York Geography of the Bronx Rivers of the Bronx Rivers with fish ladders