67-563: Bahnhofbrücke is a road and tramway bridge over the Limmat in the city of Zürich in the canton of Zürich in Switzerland . Bahnhofbrücke meaning railway station bridge , referring to the Hauptbahnhof Zürich , is situated outside of the historical core of the medieval town of Zürich. The bridge crosses the left-hand (western) and right-hand (eastern) bank of the Limmat , opposite of
134-596: A bridge-restaurant which is a bridge built to serve as a restaurant. Other suspension bridge towers carry transmission antennas. Conservationists use wildlife overpasses to reduce habitat fragmentation and animal-vehicle collisions. The first animal bridges sprung up in France in the 1950s, and these types of bridges are now used worldwide to protect both large and small wildlife. Bridges are subject to unplanned uses as well. The areas underneath some bridges have become makeshift shelters and homes to homeless people, and
201-520: A bridge is to be designed, standards authorities specify simplified notional load models, notably HL-93, intended to give the same load effects as the characteristic maximum values. The Eurocode is an example of a standard for bridge traffic loading that was developed in this way. Most bridge standards are only applicable for short and medium spans - for example, the Eurocode is only applicable for loaded lengths up to 200 m. Longer spans are dealt with on
268-471: A case-by-case basis. It is generally accepted that the intensity of load reduces as span increases because the probability of many trucks being closely spaced and extremely heavy reduces as the number of trucks involved increases. It is also generally assumed that short spans are governed by a small number of trucks traveling at high speed, with an allowance for dynamics. Longer spans on the other hand, are governed by congested traffic and no allowance for dynamics
335-480: A combination of structural health monitoring and testing. This is regulated in country-specific engineer standards and includes an ongoing monitoring every three to six months, a simple test or inspection every two to three years and a major inspection every six to ten years. In Europe, the cost of maintenance is considerable and is higher in some countries than spending on new bridges. The lifetime of welded steel bridges can be significantly extended by aftertreatment of
402-399: A different site, and re-used. They are important in military engineering and are also used to carry traffic while an old bridge is being rebuilt. Movable bridges are designed to move out of the way of boats or other kinds of traffic, which would otherwise be too tall to fit. These are generally electrically powered. The Tank bridge transporter (TBT) has the same cross-country performance as
469-594: A few will predominate. The separation of forces and moments may be quite clear. In a suspension or cable-stayed bridge , the elements in tension are distinct in shape and placement. In other cases the forces may be distributed among a large number of members, as in a truss. The world's longest beam bridge is Lake Pontchartrain Causeway in southern Louisiana in the United States, at 23.83 miles (38.35 km), with individual spans of 56 feet (17 m). Beam bridges are
536-553: A simple type of suspension bridge , were used by the Inca civilization in the Andes mountains of South America, just prior to European colonization in the 16th century. The Ashanti built bridges over streams and rivers . They were constructed by pounding four large forked tree trunks into the stream bed, placing beams along these forked pillars, then positioning cross-beams that were finally covered with four to six inches of dirt. During
603-578: A span of 552 m (1,811 ft). The bridge was opened 29 April 2009, in Chongqing , China. The longest suspension bridge in the world is the 4,608 m (15,118 ft) 1915 Çanakkale Bridge in Turkey. The longest cable-stayed bridge since 2012 is the 1,104 m (3,622 ft) Russky Bridge in Vladivostok , Russia. Some Engineers sub-divide 'beam' bridges into slab, beam-and-slab and box girder on
670-732: A stream. Often in palaces, a bridge will be built over an artificial waterway as symbolic of a passage to an important place or state of mind. A set of five bridges cross a sinuous waterway in an important courtyard of the Forbidden City in Beijing, China. The central bridge was reserved exclusively for the use of the Emperor and Empress, with their attendants. The estimated life of bridges varies between 25 and 80 years depending on location and material. Bridges may age hundred years with proper maintenance and rehabilitation. Bridge maintenance consisting of
737-479: A tank even when fully loaded. It can deploy, drop off and load bridges independently, but it cannot recover them. Double-decked (or double-decker) bridges have two levels, such as the George Washington Bridge , connecting New York City to Bergen County , New Jersey , US, as the world's busiest bridge, carrying 102 million vehicles annually; truss work between the roadway levels provided stiffness to
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#1733093451900804-456: Is a bridge that carries water, resembling a viaduct, which is a bridge that connects points of equal height. A road-rail bridge carries both road and rail traffic. Overway is a term for a bridge that separates incompatible intersecting traffic, especially road and rail. Some bridges accommodate other purposes, such as the tower of Nový Most Bridge in Bratislava , which features a restaurant, or
871-587: Is also listed as a Class object in the Swiss inventory of cultural property of national and regional significance . In Kempraten ( Rapperswil-Jona municipality), there was a Roman vicus named Centum Prata . Another settlement was Turicum in Zurich. The main transportation nodes around the lake are Zurich and — given the presence of the Seedamm causeway — Pfäffikon and Rapperswil . Besides Quaibrücke in Zurich and
938-574: Is an early example of a double-decked bridge. The upper level carries a railway, and the lower level is used for road traffic. Other examples include Britannia Bridge over the Menai Strait and Craigavon Bridge in Derry, Northern Ireland. The Oresund Bridge between Copenhagen and Malmö consists of a four-lane highway on the upper level and a pair of railway tracks at the lower level. Tower Bridge in London
1005-485: Is different example of a double-decked bridge, with the central section consisting of a low-level bascule span and a high-level footbridge . A viaduct is made up of multiple bridges connected into one longer structure. The longest and some of the highest bridges are viaducts, such as the Lake Pontchartrain Causeway and Millau Viaduct . A multi-way bridge has three or more separate spans which meet near
1072-417: Is led by architects, bridges are usually designed by engineers. This follows from the importance of the engineering requirements; namely spanning the obstacle and having the durability to survive, with minimal maintenance, in an aggressive outdoor environment. Bridges are first analysed; the bending moment and shear force distributions are calculated due to the applied loads. For this, the finite element method
1139-540: Is needed. Calculating the loading due to congested traffic remains a challenge as there is a paucity of data on inter-vehicle gaps, both within-lane and inter-lane, in congested conditions. Weigh-in-Motion (WIM) systems provide data on inter-vehicle gaps but only operate well in free flowing traffic conditions. Some authors have used cameras to measure gaps and vehicle lengths in jammed situations and have inferred weights from lengths using WIM data. Others have used microsimulation to generate typical clusters of vehicles on
1206-568: Is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones . The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge , dating from
1273-671: Is the Au peninsula at the village of Au between Wädenswil and Horgen . The lake shores are well cultivated and fertile. They include nature reserves , such as Frauenwinkel or Bätzimatt . The bay of Rapperswil and reed in Nuolen are wintering areas for birds and popular sites for bird watching . To the east, separated by Zürichberg - Adlisberg , Forch , and Pfannenstiel , are two smaller lakes, Greifensee ( lit. ' Lake Greifen ' ) and Pfäffikersee ( lit. ' Lake Pfäffikon ' ). There are several minor lakes and ponds in
1340-737: Is the most popular. The analysis can be one-, two-, or three-dimensional. For the majority of bridges, a two-dimensional plate model (often with stiffening beams) is sufficient or an upstand finite element model. On completion of the analysis, the bridge is designed to resist the applied bending moments and shear forces, section sizes are selected with sufficient capacity to resist the stresses. Many bridges are made of prestressed concrete which has good durability properties, either by pre-tensioning of beams prior to installation or post-tensioning on site. In most countries, bridges, like other structures, are designed according to Load and Resistance Factor Design (LRFD) principles. In simple terms, this means that
1407-618: The Hellenistic era can be found in the Peloponnese. The greatest bridge builders of antiquity were the ancient Romans . The Romans built arch bridges and aqueducts that could stand in conditions that would damage or destroy earlier designs, some of which still stand today. An example is the Alcántara Bridge , built over the river Tagus , in Spain. The Romans also used cement, which reduced
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#17330934519001474-833: The University of Minnesota ). Likewise, in Toronto , the Prince Edward Viaduct has five lanes of motor traffic, bicycle lanes, and sidewalks on its upper deck; and a pair of tracks for the Bloor–Danforth subway line on its lower deck. The western span of the San Francisco–Oakland Bay Bridge also has two levels. Robert Stephenson 's High Level Bridge across the River Tyne in Newcastle upon Tyne , completed in 1849,
1541-658: The Zürich Hauptbahnhof and connects the central railway station and the Central square respectively Limmatquai , connecting Rathaus and Lindenhof respectively the City and Unterstrass quarters. The Zürich tram lines 3, 4, 6, 7, 10 and 15, and the local VBZ bus lines 31, 33, 34 and 46 provide public transportation, as well as Zürichsee-Schifffahrtsgesellschaft (ZSG) and its Limmat tour boats towards Zürichhorn and Landesmuseum . Private road transport towards Limmatquai,
1608-588: The cantons of Schwyz , St. Gallen and Zurich , are among the 56 Prehistoric pile dwellings around the Alps in Switzerland. These nine sites on the Lake Zurich lakeshore are Freienbach–Hurden Rosshorn , Freienbach–Hurden Seefeld , Rapperswil-Jona/Hombrechtikon–Feldbach , Rapperswil-Jona–Technikum , Erlenbach–Winkel , Meilen–Rorenhaab , Wädenswil–Vorder Au , Zurich–Enge Alpenquai , and Kleiner Hafner . Because
1675-495: The river Severn . With the Industrial Revolution in the 19th century, truss systems of wrought iron were developed for larger bridges, but iron does not have the tensile strength to support large loads. With the advent of steel, which has a high tensile strength, much larger bridges were built, many using the ideas of Gustave Eiffel . In Canada and the United States, numerous timber covered bridges were built in
1742-521: The 13th century BC, in the Peloponnese is one of the oldest arch bridges in existence and use. The Oxford English Dictionary traces the origin of the word bridge to an Old English word brycg , of the same meaning. The Oxford English Dictionary also notes that there is some suggestion that the word can be traced directly back to Proto-Indo-European *bʰrēw-. However, they also note that "this poses semantic problems." The origin of
1809-511: The 18th century, there were many innovations in the design of timber bridges by Hans Ulrich Grubenmann , Johannes Grubenmann , as well as others. The first book on bridge engineering was written by Hubert Gautier in 1716. A major breakthrough in bridge technology came with the erection of the Iron Bridge in Shropshire, England in 1779. It used cast iron for the first time as arches to cross
1876-720: The Seedamm, there are no bridges across the lake. In addition, the towns of Meilen and Horgen are connected by a car ferry . Bus routes on the western shore are operated by Zimmerberg Bus . On the eastern side, the VZO provides bus services along the lake shore and to the Zürcher Oberland . VZO also operates the urban bus routes in Rapperswil and Jona . At the northern end of the lake, in Zurich, public transport consists of trams , trolleybuses and busses of VBZ . Left bank : The towns on
1943-713: The Voralpen Express. This short line connects Rapperswil with Pfäffikon SZ via Hurden . The Zürichsee-Schifffahrtsgesellschaft – lit. ' the Lake Zurich Navigation Company ' – provides with its 17-passenger ships touristic services on Lake Zurich. There are a number of passenger ferry services, notably the Horgen–Meilen ferry , an auto ferry between Horgen and Meilen . The freezing of Lake Zurich, called Seegfrörni in Swiss German ,
2010-610: The appearance of the bridge can have great importance. Often, this is the case with a large bridge that serves as an entrance to a city, or crosses over a main harbor entrance. These are sometimes known as signature bridges. Designers of bridges in parks and along parkways often place more importance on aesthetics, as well. Examples include the stone-faced bridges along the Taconic State Parkway in New York. Bridges are typically more aesthetically pleasing if they are simple in shape,
2077-613: The attention of the general public in the 1990s by the novel, movie and play The Bridges of Madison County . In 1927, welding pioneer Stefan Bryła designed the first welded road bridge in the world, the Maurzyce Bridge which was later built across the river Słudwia at Maurzyce near Łowicz , Poland in 1929. In 1995, the American Welding Society presented the Historic Welded Structure Award for
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2144-596: The basis of their cross-section. A slab can be solid or voided (though this is no longer favored for inspectability reasons) while beam-and-slab consists of concrete or steel girders connected by a concrete slab. A box-girder cross-section consists of a single-cell or multi-cellular box. In recent years, integral bridge construction has also become popular. Most bridges are fixed bridges, meaning they have no moving parts and stay in one place until they fail or are demolished. Temporary bridges, such as Bailey bridges , are designed to be assembled, taken apart, transported to
2211-437: The bridge to Poland. Bridges can be categorized in several different ways. Common categories include the type of structural elements used, by what they carry, whether they are fixed or movable, and by the materials used. Bridges may be classified by how the actions of tension , compression , bending , torsion and shear are distributed through their structure. Most bridges will employ all of these to some degree, but only
2278-472: The bridge. Lake Z%C3%BCrich Lake Zurich ( German : Zürichsee ; Alemannic German : Zürisee ) is a lake in Switzerland , extending southeast of the city of Zurich . Depending on the context, Lake Zurich or Zürichsee can be used to describe the lake as a whole, or just that part of the lake downstream of the Hurden peninsula and Seedamm causeway (between Pfäffikon and Rapperswil ). In
2345-531: The canton of Zurich, and Rapperswil-Jona . The latter includes the medieval town of Rapperswil , whose castle is home to the Polish museum , and the coastal villages of Kempraten , Busskirch and Bollingen . The municipalities of Rapperswil-Jona and Schmerikon , which is close to the east end of the lake, are both in the canton of St. Gallen . A little further east is the larger town of Uznach . Nine Prehistoric pile dwellings around Zürichsee , which are located in
2412-439: The center of the bridge. Multi-way bridges with only three spans appear as a "T" or "Y" when viewed from above. Multi-way bridges are extremely rare. The Tridge , Margaret Bridge , and Zanesville Y-Bridge are examples. A bridge can be categorized by what it is designed to carry, such as trains, pedestrian or road traffic ( road bridge ), a pipeline ( Pipe bridge ) or waterway for water transport or barge traffic. An aqueduct
2479-467: The deck is thinner in proportion to its span, the lines of the structure are continuous, and the shapes of the structural elements reflect the forces acting on them. To create a beautiful image, some bridges are built much taller than necessary. This type, often found in east-Asian style gardens, is called a Moon bridge , evoking a rising full moon. Other garden bridges may cross only a dry bed of stream-washed pebbles, intended only to convey an impression of
2546-492: The first human-made bridges with significant span were probably intentionally felled trees. Among the oldest timber bridges is the Holzbrücke Rapperswil-Hurden bridge that crossed upper Lake Zürich in Switzerland; prehistoric timber pilings discovered to the west of the Seedamm causeway date back to 1523 BC. The first wooden footbridge there led across Lake Zürich; it was reconstructed several times through
2613-873: The lake at its north-west end (at the level of the Quaibrücke ), passing through the city of Zurich; however, the outflow is then called the Limmat . The Limmat is a tributary of the Aare , which itself is a tributary of the High Rhine . The culminating point of the lake's drainage basin is the Tödi at 3,614 metres above sea level. Besides the River Linth, other tributaries are the Jona , Schmerikoner Aa , Steinenbach and Wägitaler Aa , which all flow out into Obersee , along with several creeks. The Seedamm , an artificial causeway and bridge, crosses
2680-603: The lake has grown in size over time, the original piles are now around 4 metres (13 ft) to 7 metres (23 ft) under the water level of 406 metres (1,332 ft). Two other sites are not far away: Greifensee–Storen/Wildsberg at the Greifensee and Wetzikon–Robenhausen at the Pfäffikersee. As well as being part of the 56 Swiss sites of the UNESCO World Heritage Site, each of these 11 prehistoric pile dwellings
2747-693: The lake. At Wädenswil , the line connects to the Wädenswil–Einsiedeln railway to Einsiedeln , served by the S13 . Right bank : Towns on the eastern shore of the lower lake (also known as the Goldcoast , or Goldküste ) are connected by the Lake Zurich right bank railway line between Zürich HB and Rapperswil . This line is served by S-Bahn services S6 , S7 , S16 and S20 of Zurich S-Bahn. The Rapperswil–Ziegelbrücke railway line along
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2814-500: The largest pedestrian zone of Zürich, is restricted to the short roadway towards the Brun bridge and Uraniastrasse ( Urania Sternwarte ) at the site of the former Oetenbach nunnery ; and also road transport between Central–Bahnhofbrücke, and the Bahnhofquai and Bahnhofplatz squares is allowed. The construction works started in 1847, named in 1863, and in 1871 it was extended according to
2881-748: The late 1700s to the late 1800s, reminiscent of earlier designs in Germany and Switzerland. Some covered bridges were also built in Asia. In later years, some were partly made of stone or metal but the trusses were usually still made of wood; in the United States, there were three styles of trusses, the Queen Post, the Burr Arch and the Town Lattice. Hundreds of these structures still stand in North America. They were brought to
2948-464: The late 2nd century AD, when the Roman Empire built a 6-metre-wide (20 ft) wooden bridge to carry transport across the lake. Between 1358 and 1360, Rudolf IV, Duke of Austria , built a 'new' wooden bridge across the lake that was used until 1878; it was approximately 1,450 metres (4,760 ft) long and 4 metres (13 ft) wide. On 6 April 2001, a reconstruction of the original wooden footbridge
3015-685: The latter case, the upstream part of the lake is called Obersee ( lit. ' Upper Lake ' ), whilst the lower part is sometimes also referred to as the Lower Lake ( unterer Zürichsee ), respectively. Lake Zurich is a glacial lake that was formed by the Rhine-Linth glacier [ de ] . Its main tributary is the River Linth , which rises in the glaciers of the Glarus Alps . The Linth originally flew directly into Lake Zurich, but
3082-427: The load is factored up by a factor greater than unity, while the resistance or capacity of the structure is factored down, by a factor less than unity. The effect of the factored load (stress, bending moment) should be less than the factored resistance to that effect. Both of these factors allow for uncertainty and are greater when the uncertainty is greater. Most bridges are utilitarian in appearance, but in some cases,
3149-761: The narrowest point of the lake at the level of the Hurden Peninsula , carrying a railway line and road from Rapperswil to Pfäffikon . The waterway is also crossed by the Holzbrücke Rapperswil-Hurden , a wooden pedestrian bridge. The eastern section of the lake is known as the Obersee ( lit. ' Upper Lake ' ). West of the Seedamm lie the small islands of Lützelau and Ufenau , where in 1523 Ulrich von Hutten took refuge and died. Other islands include Grosser Hafner , Saffa Island and Schönenwerd (near Richterswil ). A popular tourist destination
3216-488: The northern shore of Obersee is served by St. Gallen S-Bahn services S4 , S6 and S17 , and the Voralpen Express . This line connects Rapperswil with Schmerikon on the eastern end of the lake via Blumenau . Bollingen is a ghost station since 2004. Seedamm : The Rapperswil–Pfäffikon railway line across the Seedamm and Hurden Peninsula is served by Zurich S-Bahn services S5 and S40 and
3283-629: The past, these load models were agreed by standard drafting committees of experts but today, this situation is changing. It is now possible to measure the components of bridge traffic load, to weigh trucks, using weigh-in-motion (WIM) technologies. With extensive WIM databases, it is possible to calculate the maximum expected load effect in the specified return period. This is an active area of research, addressing issues of opposing direction lanes, side-by-side (same direction) lanes, traffic growth, permit/non-permit vehicles and long-span bridges (see below). Rather than repeat this complex process every time
3350-474: The plans of Gottfried Semper by the architect F. Wanner. Redesigns of the Central–Bahnhofbrücke area occurred in 1950/51. Road bridge A bridge is a structure built to span a physical obstacle (such as a body of water , valley , road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that
3417-468: The principles of Load and Resistance Factor Design . Before factoring to allow for uncertainty, the load effect is generally considered to be the maximum characteristic value in a specified return period . Notably, in Europe, it is the maximum value expected in 1000 years. Bridge standards generally include a load model, deemed to represent the characteristic maximum load to be expected in the return period. In
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#17330934519003484-742: The roadways and reduced movement of the upper level when the lower level was installed three decades after the upper level. The Tsing Ma Bridge and Kap Shui Mun Bridge in Hong Kong have six lanes on their upper decks, and on their lower decks there are two lanes and a pair of tracks for MTR metro trains. Some double-decked bridges only use one level for street traffic; the Washington Avenue Bridge in Minneapolis reserves its lower level for automobile and light rail traffic and its upper level for pedestrian and bicycle traffic (predominantly students at
3551-698: The same year, has the span of 90 m (295 ft) and crosses the valley of the Syrabach River. The difference between the two is that the Solkan Bridge was built from stone blocks, whereas the Friedensbrücke was built from a mixture of crushed stone and cement mortar. The world's largest arch bridge is the Chaotianmen Bridge over the Yangtze River with a length of 1,741 m (5,712 ft) and
3618-430: The simplest and oldest type of bridge in use today, and are a popular type. Some cantilever bridges also have a smaller beam connecting the two cantilevers, for extra strength. The largest cantilever bridge is the 549-metre (1,801 ft) Quebec Bridge in Quebec, Canada. With the span of 220 metres (720 ft), the Solkan Bridge over the Soča River at Solkan in Slovenia is the second-largest stone bridge in
3685-444: The south shore) are Kilchberg , Rüschlikon , Thalwil , Oberrieden , Horgen , Au , Wädenswil and Richterswil in the canton of Zurich , and Freienbach , Pfäffikon , Hurden, Altendorf , Lachen , Nuolen and Tuggen in the canton of Schwyz . On the opposite shore, which gradually becomes the northern shore towards east, are Zollikon , Küsnacht , Erlenbach , Herrliberg , Feldmeilen , Meilen , Stäfa , and Feldbach in
3752-526: The time of the Warring States period , the oldest surviving stone bridge in China is the Zhaozhou Bridge , built from 595 to 605 AD during the Sui dynasty . This bridge is also historically significant as it is the world's oldest open-spandrel stone segmental arch bridge. European segmental arch bridges date back to at least the Alconétar Bridge (approximately 2nd century AD), while the enormous Roman era Trajan's Bridge (105 AD) featured open-spandrel segmental arches in wooden construction. Rope bridges ,
3819-644: The undertimbers of bridges all around the world are spots of prevalent graffiti. Some bridges attract people attempting suicide, and become known as suicide bridges . The materials used to build the structure are also used to categorize bridges. Until the end of the 18th century, bridges were made out of timber, stone and masonry. Modern bridges are currently built in concrete, steel, fiber reinforced polymers (FRP), stainless steel or combinations of those materials. Living bridges have been constructed of live plants such as Ficus elastica tree roots in India and wisteria vines in Japan. Unlike buildings whose design
3886-407: The variation of strength found in natural stone. One type of cement, called pozzolana , consisted of water, lime , sand, and volcanic rock . Brick and mortar bridges were built after the Roman era , as the technology for cement was lost (then later rediscovered). In India, the Arthashastra treatise by Kautilya mentions the construction of dams and bridges. A Mauryan bridge near Girnar
3953-461: The vicinity, such as Egelsee , Lützelsee or Türlersee . Zimmerberg , Etzel and Buechberg mountains lie to the west and south of the lake, respectively. Further to the east, the Speer , Chüemettler and Federispitz can be seen from the southern part of the lake. Administratively, Lake Zurich is split between the cantons of Zurich ( Horgen District ), St. Gallen ( See-Gaster ) and Schwyz ( Höfe and March districts). The lower lake, to
4020-433: The weld transitions . This results in a potential high benefit, using existing bridges far beyond the planned lifetime. While the response of a bridge to the applied loading is well understood, the applied traffic loading itself is still the subject of research. This is a statistical problem as loading is highly variable, particularly for road bridges. Load Effects in bridges (stresses, bending moments) are designed for using
4087-410: The west of the Seedamm, is largely in the canton of Zurich, whilst the upper lake is shared between the cantons of St. Gallen and Schwyz. The following rivers or streams flow into lower part of Lake Zurich. From the Limmat clockwise, they are: Zurich , at the north-western end of the lake, is the largest city on Lake Zurich. The least populous is Hurden . On the west shore (which gradually becomes
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#17330934519004154-420: The western and southern shores of Lake Zurich are linked by the Lake Zurich left bank railway line, which connects Zürich HB with Ziegelbrücke . This line is served by the S2 , S8 , S24 and S25 of the Zurich S-Bahn and InterRegio (IR) trains. It is also used by EuroCity (EC), Intercity Express (ICE), Intercity (IC) and Railjet (RJX) trains but they do not call at stations along
4221-477: The word for the card game of the same name is unknown. The simplest and earliest types of bridges were stepping stones . Neolithic people also built a form of boardwalk across marshes ; examples of such bridges include the Sweet Track and the Post Track in England, approximately 6000 years old. Ancient people would also have used log bridges consisting of logs that fell naturally or were intentionally felled or placed across streams. Some of
4288-400: The world and the longest railroad stone bridge. It was completed in 1905. Its arch, which was constructed from over 5,000 tonnes (4,900 long tons; 5,500 short tons) of stone blocks in just 18 days, is the second-largest stone arch in the world, surpassed only by the Friedensbrücke (Syratalviadukt) in Plauen , and the largest railroad stone arch. The arch of the Friedensbrücke, which was built in
4355-409: Was later diverted by the Escher canal (completed in 1811) into Lake Walen ( Walensee ) from where its waters are now carried to the east end of Lake Zurich (near Schmerikon ) by means of the straightened Linth canal (completed in 1816). Until the early 16th century, there was another lake upstream of Obersee , Lake Tuggen ( Tuggenersee ) near Tuggen . The waters of Lake Zurich flow out of
4422-460: Was opened; it is also the longest wooden bridge in Switzerland. The Arkadiko Bridge is one of four Mycenaean corbel arch bridges part of a former network of roads, designed to accommodate chariots , between the fort of Tiryns and town of Epidauros in the Peloponnese , in southern Greece . Dating to the Greek Bronze Age (13th century BC), it is one of the oldest arch bridges still in existence and use. Several intact, arched stone bridges from
4489-462: Was surveyed by James Princep . The bridge was swept away during a flood, and later repaired by Puspagupta, the chief architect of emperor Chandragupta I . The use of stronger bridges using plaited bamboo and iron chain was visible in India by about the 4th century. A number of bridges, both for military and commercial purposes, were constructed by the Mughal administration in India. Although large bridges of wooden construction existed in China at
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