The Mohawk River is a 149-mile-long (240 km) river in the U.S. state of New York . It is the largest tributary of the Hudson River . The Mohawk flows into the Hudson in Cohoes, New York , a few miles north of the state capital of Albany . The river is named for the Mohawk Nation of the Iroquois Confederacy . A major waterway, in the early 19th century, the river's east-west valley provided the setting and water for development of the Erie Canal , as a key to developing New York. The largest tributary, the Schoharie Creek , accounts for over one quarter (26.83%) of the Mohawk River's watershed . Another main tributary is the West Canada Creek , which makes up for 16.33% of the Mohawk's watershed.
81-722: The Champlain Canal is a 60-mile (97 km) canal in New York that connects the Hudson River to the south end of Lake Champlain . It was simultaneously constructed with the Erie Canal for use by commercial vessels, fully opening in 1823. Today, it is mostly used by recreational boaters as part of the New York State Canal System and Lakes to Locks Passage . Water for the highest portion comes from
162-547: A caisson of water in which boats float while being moved between two levels; and inclined planes where a caisson is hauled up a steep railway. To cross a stream, road or valley (where the delay caused by a flight of locks at either side would be unacceptable) the valley can be spanned by a navigable aqueduct – a famous example in Wales is the Pontcysyllte Aqueduct (now a UNESCO World Heritage Site ) across
243-510: A drainage divide atop a ridge , generally requiring an external water source above the highest elevation . The best-known example of such a canal is the Panama Canal . Many canals have been built at elevations, above valleys and other waterways. Canals with sources of water at a higher level can deliver water to a destination such as a city where water is needed. The Roman Empire 's aqueducts were such water supply canals. The term
324-415: A "cistern", or depressed area just downstream from the fall, to "cushion" the water by providing a deep pool for its kinetic energy to be diffused in. Vertical falls work for drops of up to 1.5 m in height, and for discharge of up to 15 cubic meters per second. The transport capacity of pack animals and carts is limited. A mule can carry an eighth-ton [250 pounds (113 kg)] maximum load over
405-496: A canal has a series of dams and locks that create reservoirs of low speed current flow. These reservoirs are referred to as slack water levels , often just called levels . A canal can be called a navigation canal when it parallels a natural river and shares part of the latter's discharges and drainage basin , and leverages its resources by building dams and locks to increase and lengthen its stretches of slack water levels while staying in its valley . A canal can cut across
486-789: A combination of older canal profiles and history books as well as specifications on signs posted along the canal. The margin of error should normally be within 6 inches (15 cm). (upstream/north) (downstream/south) (upstream/north) All surface elevations are approximate. * Denotes Federal managed locks. Lake Champlain has a mean surface elevation ranging between 95 and 100 feet (29 and 30 m). Canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation ) or for conveyancing water transport vehicles (e.g. water taxi ). They carry free, calm surface flow under atmospheric pressure , and can be thought of as artificial rivers . In most cases,
567-413: A combination of the three, depending on available water and available path: Smaller transportation canals can carry barges or narrowboats , while ship canals allow seagoing ships to travel to an inland port (e.g., Manchester Ship Canal ), or from one sea or ocean to another (e.g., Caledonian Canal , Panama Canal ). At their simplest, canals consist of a trench filled with water. Depending on
648-549: A journey measured in days and weeks, though much more for shorter distances and periods with appropriate rest. Besides, carts need roads. Transport over water is much more efficient and cost-effective for large cargoes. The oldest known canals were irrigation canals, built in Mesopotamia c. 4000 BC , in what is now Iraq . The Indus Valley civilization of ancient India ( c. 3000 BC ) had sophisticated irrigation and storage systems developed, including
729-635: A large section of the Catskill Mountains , the Mohawk Valley proper, and a section of the southern Adirondack Mountains . All three regions have distinct bedrock geology, and the underlying rocks become progressively younger to the south. Overall, this part of New York is represented by lower Paleozoic sedimentary rocks that unconformably overlie the Grenville -aged ( Proterozoic , here about 1.1 billion years old) metamorphic rocks of
810-453: A long record of significant and damaging floods along the entire length of the river. Because the river and its tributaries typically freeze in the winter, the spring melt is commonly accompanied by ice floes that get stuck and jammed along the main trunk of the river. This annual spring breakup typically occurs in the last few weeks of March, although there are numerous floods that have occurred before or after this time, such as in 2018 when
891-711: A mountain" (or Yeionontatátie , "going round a mountain"). The first recorded European exploration of the Mohawk was a trip by the Dutchman Harman Meyndertsz van den Bogaert in 1634. He followed the river upstream from Albany for a distance of 100 miles, including all the territory of the Mohawks. In 1661 Dutch colonists founded the city of Schenectady on the Mohawk River approximately 19 miles (31 km) from Albany. "For fifty years Schenectady
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#1732765399986972-579: A project to improve the flood walls on South Chuctanunda Creek and Mohawk River. The floodwalls and river banks were repaired at a cost of $ 164,248. Historically, the Mohawk watershed has lacked a watershed management plan typical in many adjacent basins. In 2010, the New York State Department of Environmental Conservation released the Mohawk River Basin Action Agenda, which is the first framework for
1053-581: A rather low gradient for its time. The canal is still in use after renovation. In the Middle Ages , water transport was several times cheaper and faster than transport overland. Overland transport by animal drawn conveyances was used around settled areas, but unimproved roads required pack animal trains, usually of mules to carry any degree of mass, and while a mule could carry an eighth ton, it also needed teamsters to tend it and one man could only tend perhaps five mules, meaning overland bulk transport
1134-459: A uniform altitude. Other, generally later, canals took more direct routes requiring the use of various methods to deal with the change in level. Canals have various features to tackle the problem of water supply. In cases, like the Suez Canal, the canal is open to the sea. Where the canal is not at sea level, a number of approaches have been adopted. Taking water from existing rivers or springs
1215-545: A vessel up to 300 feet (91 m) long and 43.5 feet (13.3 m) wide. Overall sidewall height will vary by lock, ranging between 28 and 61 feet (8.5 and 18.6 m) depending on the lift and navigable stages. There is no Lock C10 on the Champlain Canal. The Troy Federal Lock , located just north of Troy, New York , is not part of the New York State Canal System proper; it is operated by
1296-635: A watershed management plan in this basin. This plan identifies five priority goals for the Mohawk River Basin that are designed to enhance ecosystem health and the vitality of the region. The Action Agenda, developed by the NYS DEC in collaboration with a number of stakeholders in the basin with public input, advocates an ecosystem-based approach to watershed management. In October 2014, Riverkeeper, an environmental advocacy and clean water watchdog organization, announced that they will be expanding
1377-407: A week. There was considerable damage everywhere, especially Mohawk and Fort Plain. On July 3, 1985, Congress approved a project at Amsterdam for work to be done on the Mohawk River and South Chuctanunda Creek. South Chuctanunda Creek was cleared at the upstream end of the project for approximately 950 feet (290 m). New flood walls were installed along the right bank of South Chuctanunda Creek and
1458-422: Is a channel that cuts across a drainage divide , making a navigable channel connecting two different drainage basins . Both navigations and canals use engineered structures to improve navigation: Since they cut across drainage divides, canals are more difficult to construct and often need additional improvements, like viaducts and aqueducts to bridge waters over streams and roads, and ways to keep water in
1539-701: Is presumed, introduced in Italy by Bertola da Novate in the 16th century. This allowed wider gates and also removed the height restriction of guillotine locks . To break out of the limitations caused by river valleys, the first summit level canals were developed with the Grand Canal of China in 581–617 AD whilst in Europe the first, also using single locks, was the Stecknitz Canal in Germany in 1398. In
1620-599: Is rarely less than 30 metres (98 ft) wide. In the 5th century BC, Achaemenid king Xerxes I of Persia ordered the construction of the Xerxes Canal through the base of Mount Athos peninsula, Chalkidiki , northern Greece. It was constructed as part of his preparations for the Second Persian invasion of Greece , a part of the Greco-Persian Wars . It is one of the few monuments left by
1701-418: Is steeper than the desired canal gradient. They are constructed so the falling water's kinetic energy is dissipated in order to prevent it from scouring the bed and sides of the canal. A canal fall is constructed by cut and fill . It may be combined with a regulator, bridge, or other structure to save costs. There are various types of canal falls, based on their shape. One type is the ogee fall, where
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#17327653999861782-452: Is the pound lock , which consists of a chamber within which the water level can be raised or lowered connecting either two pieces of canal at a different level or the canal with a river or the sea. When there is a hill to be climbed, flights of many locks in short succession may be used. Prior to the development of the pound lock in 984 AD in China by Chhaio Wei-Yo and later in Europe in
1863-521: The Catskill Delta , which is also Devonian in age. During the Pleistocene (c. 1.8 to 0.01 mya ), the watershed was extensively modified by continental glaciation . As a result of glacial scour and deposition, the surficial deposits in much of the watershed are poorly sorted boulder- and clay-rich glacial till . During deglaciation , several glacial lakes left varved clay deposits. In
1944-658: The Elbe , Oder and Weser being linked by canals. In post-Roman Britain, the first early modern period canal built appears to have been the Exeter Canal , which was surveyed in 1563, and open in 1566. The oldest canal in the European settlements of North America, technically a mill race built for industrial purposes, is Mother Brook between the Boston, Massachusetts neighbourhoods of Dedham and Hyde Park connecting
2025-717: The Green Mountains of Vermont ; and westward to the border with the Iroquoian Oneida Nation 's traditional homeland territory. The river has long been important to transportation and migration to the west as a passage through the Appalachian Mountains , between the Catskill Mountains and Allegheny Plateau to the south and the Adirondack Mountains to the north. The Mohawk Valley allowed easier passage than going over
2106-543: The Naviglio Grande built between 1127 and 1257 to connect Milan with the river Ticino . The Naviglio Grande is the most important of the lombard " navigli " and the oldest functioning canal in Europe. Later, canals were built in the Netherlands and Flanders to drain the polders and assist transportation of goods and people. Canal building was revived in this age because of commercial expansion from
2187-545: The Phoenix metropolitan area was the most complex in ancient North America. A portion of the ancient canals has been renovated for the Salt River Project and now helps to supply the city's water. The Sinhalese constructed the 87 km (54 mi) Yodha Ela in 459 A.D. as a part of their extensive irrigation network which functioned in a way of a moving reservoir due to its single banking aspect to manage
2268-528: The River Brue at Northover with Glastonbury Abbey , a distance of about 1.75 kilometres (1,900 yd). Its initial purpose is believed to be the transport of building stone for the abbey, but later it was used for delivering produce, including grain, wine and fish, from the abbey's outlying properties. It remained in use until at least the 14th century, but possibly as late as the mid-16th century. More lasting and of more economic impact were canals like
2349-510: The Saint Lawrence River . The following list of locks is provided for the current canal, from south to north. There are a total of 11 locks on the Champlain Canal. All locks on the New York State Canal System are single-chamber; the dimensions are 328 feet (100 m) long and 45 feet (14 m) wide with a minimum 12-foot (3.7 m) depth of water over the miter sills at the upstream gates upon lift. They can accommodate
2430-614: The Songhai Empire of West Africa, several canals were constructed under Sunni Ali and Askia Muhammad I between Kabara and Timbuktu in the 15th century. These were used primarily for irrigation and transport. Sunni Ali also attempted to construct a canal from the Niger River to Walata to facilitate conquest of the city but his progress was halted when he went to war with the Mossi Kingdoms . Around 1500–1800
2511-621: The United States Army Corps of Engineers . The Champlain Canal officially begins at the confluence of the Hudson and Mohawk rivers at Waterford, New York . Distance is based on position markers from an interactive canal map provided online by the New York State Canal Corporation and may not exactly match specifications on signs posted along the canal. Mean surface elevations are comprised from
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2592-556: The reservoirs built at Girnar in 3000 BC. This is the first time that such planned civil project had taken place in the ancient world. In Egypt , canals date back at least to the time of Pepi I Meryre (reigned 2332–2283 BC), who ordered a canal built to bypass the cataract on the Nile near Aswan . In ancient China , large canals for river transport were established as far back as the Spring and Autumn period (8th–5th centuries BC),
2673-404: The stratum the canal passes through, it may be necessary to line the cut with some form of watertight material such as clay or concrete. When this is done with clay, it is known as puddling . Canals need to be level, and while small irregularities in the lie of the land can be dealt with through cuttings and embankments, for larger deviations other approaches have been adopted. The most common
2754-471: The 12th century. River navigations were improved progressively by the use of single, or flash locks . Taking boats through these used large amounts of water leading to conflicts with watermill owners and to correct this, the pound or chamber lock first appeared, in the 10th century in China and in Europe in 1373 in Vreeswijk , Netherlands. Another important development was the mitre gate , which was, it
2835-472: The 15th century, either flash locks consisting of a single gate were used or ramps, sometimes equipped with rollers, were used to change the level. Flash locks were only practical where there was plenty of water available. Locks use a lot of water, so builders have adopted other approaches for situations where little water is available. These include boat lifts , such as the Falkirk Wheel , which use
2916-609: The Adirondacks. In the watershed, these rocks are only significant in the headwaters of the West Canada Creek. Much of the main trunk of the Mohawk River sits in Cambro - Ordovician carbonates ( limestone ) and Middle Ordovician sandstones and shales . The southern tributaries (Catskill Mountains) are underlain by a thin sequence of Devonian limestones that are overlain by a thick sequence of sandstones and shale of
2997-639: The Champlain Canal into a ship canal , easing marine transport between New York City and Montreal . The Champlain Canal's southern end is about 3 miles (4.8 km) north of the locks at the Troy Federal Dam , at the point where the Erie Canal splits from the Hudson River . The Hudson River is designated as part of the canal proceeding north for approximately 35 miles (56 km), with six locks providing navigation around dams, until it reaches lock C-7 in Fort Edward, New York . At this point,
3078-662: The Hamlet of Westernville receiving Deans Gulf along the way. In Westernville it enters Delta Reservoir . After exiting the reservoir it heads south toward the City of Rome receiving Hurlbut Glen Brook and passing the Rome Fish Hatchery along the way. On the south side of the City it enters the Erie Canal and begins to flow east. After Rome the river flows generally east through the Mohawk Valley , passing by
3159-402: The Hamlet of Hillside, first receiving Blue Brook then McMullen Brook and Haynes Brook . In Hillside is the confluence of Lansing Kill , after which it flows towards the Hamlet of North Western receiving Stringer Brook along the way. After North Western it receives Tannery Brook then Wells Creek in the Hamlet of Frenchville . At Frenchville it curves to the southwest and heads toward
3240-572: The Hudson River via the Glens Falls Feeder Canal , from above the drop at Glens Falls, New York . An early proposal made in the 1790s by Marc Isambard Brunel for a Hudson River–Lake Champlain canal was not approved. Another proposal for the canal was made in 1812 and construction authorized in 1817. By 1818, 12 miles (19 km) were completed, and in 1819 the canal was opened from Fort Edward to Lake Champlain. The canal
3321-549: The Mohawk Barge Canal locks sustained major damage, especially near Waterford and Rotterdam Junction. Another major flood was on June 28, 2013. It was caused by heavy rain that had fallen in the region for weeks. On the night of June 27, 2013, the Jordanville area reported that 4 inches of rain fell in one hour. The next day, the Mohawk River flooded the valley, residents were stranded and without power for about
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3402-630: The Mohawk River. A new wing wall was installed on the left bank of South Chuctanunda Creek at the upstream end of the New York Central Railroad Bridge. The South Chuctanunda was realigned and reshaped for approximately 1,056 feet (322 m) and riprap was added where needed. The existing channel of the South Chuctanunda was slightly reshaped downstream of the Florida Avenue bridge. Construction plans for
3483-435: The Mohawk, Delaware , and Susquehanna watersheds. Across the state, this event caused over $ 227 million in damage and resulted in the loss of four lives. This flooding was acute in the upper parts of the Mohawk watershed. The Mohawk River also saw significant flooding during the weeks between August 21, 2011, and September 5, 2011, due to torrential rains experienced from Hurricane Irene and Tropical Storm Lee . Many of
3564-500: The NY State Legislature in 1997 to improve historic preservation along the river. The Mohawk River has a relatively long record of flooding that has been documented back to settlement in the 17th century. The average volume of water that flows through the Mohawk is about 184 billion cubic feet (5.21 km ) every year. Much of the water flows through the watershed in the spring as snow melts rapidly and enters
3645-590: The Persian Empire in Europe . Greek engineers were also among the first to use canal locks , by which they regulated the water flow in the Ancient Suez Canal as early as the 3rd century BC. There was little experience moving bulk loads by carts, while a pack-horse would [i.e. 'could'] carry only an eighth of a ton. On a soft road a horse might be able to draw 5/8ths of a ton. But if
3726-777: The Scotia Delta, which is also known as the Great Flats Aquifer. The river is named for the Mohawk Nation of the Iroquois Confederacy . In the 1700s and before, the Mohawk people, a section of Iroquois Confederacy , were based in the Mohawk Valley , which included the area around the creek. Their territory ranged north to the St. Lawrence River , southern Quebec and eastern Ontario ; south to greater New Jersey and into Pennsylvania; eastward to
3807-785: The Southwest by 1300 CE. Archaeologists working at a major archaeological dig in the 1990s in the Tucson Basin, along the Santa Cruz River, identified a culture and people that may have been the ancestors of the Hohokam. This prehistoric group occupied southern Arizona as early as 2000 BCE, and in the Early Agricultural period grew corn, lived year-round in sedentary villages, and developed sophisticated irrigation canals. The large-scale Hohokam irrigation network in
3888-528: The canal diverges from the river and follows a constructed channel for approximately 25 miles (40 km), with five additional locks, bringing the canal to the southern end of Lake Champlain at Whitehall, New York . The elevation on the Hudson River portion increases from 15 feet (4.6 m) above sea level at the southern end, on the northern end of the locks at the Troy Federal Dam, to about 130 feet (40 m) above sea level at lock C-7, where
3969-479: The canal leaves the Hudson River. The elevation of the constructed portion reaches a peak of 140 feet (43 m) above sea level between locks C-9 and C-11, then declines to the level of Lake Champlain, between 94 and 100 feet (29 and 30 m) above sea level, at Whitehall. By traveling the length of Lake Champlain, boaters can access the Richelieu River and Chambly Canal , which connect Lake Champlain to
4050-436: The canal pressure with the influx of water. It was also designed as an elongated reservoir passing through traps creating 66 mini catchments as it flows from Kala Wewa to Thissa Wawa . The canal was not designed for the quick conveying of water from Kala Wewa to Thissa Wawa but to create a mass of water between the two reservoirs, which would in turn provided for agriculture and the use of humans and animals. They also achieved
4131-418: The canal to form a dam. They are generally placed in pre-existing grooves in the canal bank. On more modern canals, "guard locks" or gates were sometimes placed to allow a section of the canal to be quickly closed off, either for maintenance, or to prevent a major loss of water due to a canal breach. A canal fall , or canal drop, is a vertical drop in the canal bed. These are built when the natural ground slope
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#17327653999864212-462: The canal. Where large amounts of goods are loaded or unloaded such as at the end of a canal, a canal basin may be built. This would normally be a section of water wider than the general canal. In some cases, the canal basins contain wharfs and cranes to assist with movement of goods. When a section of the canal needs to be sealed off so it can be drained for maintenance stop planks are frequently used. These consist of planks of wood placed across
4293-469: The channel. There are two broad types of canal: Historically, canals were of immense importance to commerce and the development, growth and vitality of a civilization. In 1855 the Lehigh Canal carried over 1.2 million tons of anthracite coal; by the 1930s the company which built and operated it for over a century ceased operation. The few canals still in operation in our modern age are a fraction of
4374-541: The cities of Utica , Little Falls , Canajoharie , Amsterdam , and Schenectady before entering the Hudson River at Cohoes , just north of Albany. The river and its supporting canal, the Erie Canal , connect the Hudson River and port of New York with the Great Lakes at Buffalo, New York . The lower part of the Mohawk River has five permanent dams , nine movable dams (seasonal), and five active hydropower plants . Schoharie Creek and West Canada Creek are
4455-474: The difficulties of European westward settler migration . The Mohawk Valley still plays an important role in transportation. Railroads followed the Water Level Route , as did major east–west roads such as Route 5 and Interstate 90 . The Mohawk River Heritage Corridor Commission was created to preserve and promote the natural and historic assets of the Mohawk River. This commission was created by
4536-399: The drop follows an s-shaped curve to create a smooth transition and reduce turbulence . However, this smooth transition does not dissipate the water's kinetic energy, which leads to heavy scouring. As a result, the canal needs to be reinforced with concrete or masonry to protect it from eroding. Another type of canal fall is the vertical fall, which is "simple and economical". These feature
4617-486: The final stages of deglaciation, approximately 13,350 years ago, the catastrophic draining of Glacial Lake Iroquois , a pro-glacial lake, was through what would become the modern Mohawk Valley. In this final phase, the enormous discharge of water caused local deep scour features (e.g. the Potholes at Little Falls ), and extensive sand and gravel deposition, which is one of the key sources of municipal groundwater including
4698-670: The first summit level canal to use pound locks in Europe was the Briare Canal connecting the Loire and Seine (1642), followed by the more ambitious Canal du Midi (1683) connecting the Atlantic to the Mediterranean. This included a staircase of 8 locks at Béziers , a 157 metres (515 ft) tunnel, and three major aqueducts. Canal building progressed steadily in Germany in the 17th and 18th centuries with three great rivers,
4779-462: The freedom to make deliveries well away from rail lined road beds or ditches in the dirt which could not operate in the winter. The longest extant canal today, the Grand Canal in northern China, still remains in heavy use, especially the portion south of the Yellow River . It stretches from Beijing to Hangzhou at 1,794 kilometres (1,115 miles). Canals are built in one of three ways, or
4860-534: The higher waters of the Charles River and the mouth of the Neponset River and the sea. It was constructed in 1639 to provide water power for mills. In Russia, the Volga–Baltic Waterway , a nationwide canal system connecting the Baltic Sea and Caspian Sea via the Neva and Volga rivers, was opened in 1718. Mohawk River The river's source is at the confluence of the West Branch Mohawk River and East Branch Mohawk River in north-central Oneida County . It begins flowing generally southeastward towards
4941-410: The ice jam breakup happened in late February after record warm weather in the region. These ice jams can cause considerable damage to structures along the riverbanks and on the floodplain. The most severe flood of record on the main trunk of the Mohawk River was the spring breakup flood that occurred from 27 to 28 March 1914. This flood caused a tremendous amount of damage to the infrastructure because it
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#17327653999865022-422: The load were carried by a barge on a waterway, then up to 30 tons could be drawn by the same horse. — technology historian Ronald W. Clark referring to transport realities before the industrial revolution and the Canal age . Hohokam was a society in the North American Southwest in what is now part of Arizona , United States, and Sonora , Mexico. Their irrigation systems supported the largest population in
5103-412: The longest canal in the world today and the oldest extant one. It is 1,794 kilometres (1,115 mi) long and was built to carry the Emperor Yang Guang between Zhuodu ( Beijing ) and Yuhang ( Hangzhou ). The project began in 605 and was completed in 609, although much of the work combined older canals, the oldest section of the canal existing since at least 486 BC. Even in its narrowest urban sections it
5184-419: The longest one of that period being the Hong Gou (Canal of the Wild Geese), which according to the ancient historian Sima Qian connected the old states of Song, Zhang, Chen, Cai, Cao, and Wei. The Caoyun System of canals was essential for imperial taxation, which was largely assessed in kind and involved enormous shipments of rice and other grains. By far the longest canal was the Grand Canal of China , still
5265-414: The mountains to the north or south of the valley. As a result, it was strategically important during the French and Indian War and the American Revolutionary War , and a number of important battles were fought here. The fertile Mohawk Valley also attracted early settlers. The river was the highway of the native Mohawk people . The Mohawk name for the river is Teionontatátie , "a river flowing through
5346-506: The numbers that once fueled and enabled economic growth, indeed were practically a prerequisite to further urbanization and industrialization. For the movement of bulk raw materials such as coal and ores are difficult and marginally affordable without water transport. Such raw materials fueled the industrial developments and new metallurgy resulting of the spiral of increasing mechanization during 17th–20th century, leading to new research disciplines, new industries and economies of scale, raising
5427-411: The pre-railroad days of the industrial revolution, water transport was the gold standard of fast transportation. The first artificial canal in Western Europe was the Fossa Carolina built at the end of the 8th century under personal supervision of Charlemagne . In Britain, the Glastonbury Canal is believed to be the first post-Roman canal and was built in the middle of the 10th century to link
5508-406: The principal tributaries of the Mohawk River. Both of these tributaries have several significant dams including the Hinckley Dam on the West Canada and the Gilboa Dam on the upper reaches of Schoharie Creek. The Gilboa Dam, which was completed in 1926 as part of the New York City water supply system , is the subject of an active and aggressive rehabilitation project. The Mohawk watershed drains
5589-493: The project were issued on November 15, 1962. Construction work began on February 25, 1963, with construction being completed on June 4, 1965. The flood walls protect the city of Amsterdam from floods of 122,500 cu ft/s (3,470 m /s) from the Mohawk River and floods of 3,400 cu ft/s (96 m /s) from South Chuctanunda Creek. The floodwalls were able to prevent $ 13.6 million in damages from tropical storms Lee and Irene . In July 2012, governor Cuomo announced
5670-439: The river in the mid-18th century where he encountered some of the indigenous peoples belonging to the Iroquois confederacy, and has left a record for posterity of some of their customs in his journal. In the early nineteenth century water transport was a vital means of transporting both people and goods. A corporation was formed to build the Erie Canal off the Mohawk River to Lake Erie . Its construction simplified and reduced
5751-480: The standard of living for any industrialized society. Most ship canals today primarily service bulk cargo and large ship transportation industries, whereas the once critical smaller inland waterways conceived and engineered as boat and barge canals have largely been supplanted and filled in, abandoned and left to deteriorate, or kept in service and staffed by state employees, where dams and locks are maintained for flood control or pleasure boating. Their replacement
5832-401: The tributaries and the main trunk of the river. The maximum average daily flow on the river occurs between late March and early April. For the period between 1917 and 2000, the highest mean daily flow is c. 18,000 cu ft (510 m ) as measured at Cohoes, near the confluence with the Hudson. The lowest mean daily flow of 1,400 cu ft (40 m ) occurs in late August. There is
5913-573: The valley of the River Dee . Another option for dealing with hills is to tunnel through them. An example of this approach is the Harecastle Tunnel on the Trent and Mersey Canal . Tunnels are only practical for smaller canals. Some canals attempted to keep changes in level down to a minimum. These canals known as contour canals would take longer, winding routes, along which the land was
5994-485: Was a spring breakup flood with enormous amounts of ice. Ice jams of some significance occur about every other year. One major flood on the Mohawk was on 26–29 June 2006, during the Mid-Atlantic United States flood of 2006 . Flooding was caused by a stalled frontal system that resulted in 50 to 330 millimeters (2.0 to 13.0 in) of rain across central New York and widespread flooding occurred in
6075-466: Was also expensive, as men expect compensation in the form of wages, room and board. This was because long-haul roads were unpaved, more often than not too narrow for carts, much less wagons, and in poor condition, wending their way through forests, marshy or muddy quagmires as often as unimproved but dry footing. In that era, as today, greater cargoes, especially bulk goods and raw materials , could be transported by ship far more economically than by land; in
6156-458: Was an option in some cases, sometimes supplemented by other methods to deal with seasonal variations in flow. Where such sources were unavailable, reservoirs – either separate from the canal or built into its course – and back pumping were used to provide the required water. In other cases, water pumped from mines was used to feed the canal. In certain cases, extensive "feeder canals" were built to bring water from sources located far from
6237-470: Was gradual, beginning first in the United States in the mid-1850s where canal shipping was first augmented by, then began being replaced by using much faster , less geographically constrained & limited, and generally cheaper to maintain railways . By the early 1880s, canals which had little ability to economically compete with rail transport, were off the map. In the next couple of decades, coal
6318-424: Was increasingly diminished as the heating fuel of choice by oil, and growth of coal shipments leveled off. Later, after World War I when motor-trucks came into their own, the last small U.S. barge canals saw a steady decline in cargo ton-miles alongside many railways, the flexibility and steep slope climbing capability of lorries taking over cargo hauling increasingly as road networks were improved, and which also had
6399-656: Was officially opened on September 10, 1823. It was an immediate financial success, and carried substantial commercial traffic until the 1970s. In 1903, New York authorized the expansion of the Champlain Canal—along with the Erie , Oswego , and Cayuga–Seneca Canals —into the " New York State Barge Canal ." The project broke ground in 1905 and was completed in 1918. The "Barge Canal" name fell out of use in 1992. The abandoned Lake Champlain Seaway proposal would have upgraded
6480-426: Was once used to describe linear features seen on the surface of Mars , Martian canals , an optical illusion. A navigation is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river. A navigation always shares the drainage basin of the river. A vessel uses the calm parts of the river itself as well as improvements, traversing the same changes in height. A true canal
6561-529: Was the outpost of civilization and Dutch-English rule in the Mohawk valley." In 1712 the British, now in control of New York, built Fort Hunter at the confluence of the Mohawk and the Schoharie Creek , about 22 miles (35 km) upriver from Schenectady. Around 600 Palatine Germans were settled along the Mohawk and Schoharie Creek. Swedish explorer and botanist, Pehr Kalm , visited the area along
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