Misplaced Pages

#632367

85-649: The Jacques-Gabriel Bridge (named pont Jacques-Gabriel in French) spans the Loire river in Blois , France , since the beginning of the 18th century. With a total length of 283m, it is made up of 11 arches, and is the last arch bridge on the river that is pointed. Since its construction, the edifice holds the name of the architect who designed it, Jacques Gabriel . The bridge was partially destroyed three times: in 1870 ( Franco-Prussian War ), 1940 and 1944 ( World War II ). It

170-704: A bridge over the river. By 600 BC the Loire had already become a very important trading route between the Celts and the Greeks . A key transportation route, it served as one of the great "highways" of France for over 2000 years. The Phoenicians and Greeks had used pack horses to transport goods from Lyon to the Loire to get from the Mediterranean basin to the Atlantic coast. The Romans successfully subdued

255-456: A budget of US$ 18 million, mainly funded by government and public bodies, such as the Établissement Publique Loire (EPL), a public institution which had formerly advocated large-scale dam projects on the river. Studies of the palaeo-geography of the region suggest that the palaeo-Loire flowed northward and joined the Seine , while the lower Loire found its source upstream of Orléans in

340-515: A decline in trade on the river. Proposals to develop a fully navigable river up to Briare came to nothing. The opening of the Canal latéral à la Loire in 1838 enabled navigation between Digoin and Briare to continue, but the river level crossing at Briare remained a problem until the construction of the Briare aqueduct in 1896. At 662.69 metres (2,174.2 ft), this was the longest such structure in

425-633: A discharge rate of 863 m /s (30,500 cu ft/s), which is an average over the period 1967–2008. The discharge rate varies strongly along the river, with roughly 350 m /s (12,000 cu ft/s) at Orléans and 900 m /s (32,000 cu ft/s) at the mouth. It also depends strongly on the season, and the flow of only 10 m /s (350 cu ft/s) is not uncommon in August–September near Orléans. During floods, which usually occur in February and March but also in other periods,

510-627: A global nature, such as the expansion of the Mediterranean gull in Europe. The Loire has been described as "constantly under threat of losing its status as the last wild river in France". The reason for this is its sheer length and possibility of extensive navigation, which severely limits the scope of river conservation. The Federation, a member of the IUCN since 1970, has been very important in

595-415: A navigable channel on the river, as it was critical to transportation. River traffic increased gradually, with a toll system being used in medieval times. Today some of these toll bridges still remain, dated to over 800 years. During the 17th century, Jean-Baptiste Colbert instituted the use of stone retaining walls and quays from Roanne to Nantes , which helped make the river more reliable, but navigation

680-621: A new bridge is decided by August 1716. The project management is given by Duke Philippe of Orléans to Jacques Gabriel , yet King Louis XVI 's official architect. As early as the end of that year, a regiment from Piedmont is called to build the bridge. The infrastructure is inaugurated on 4 May 1724, with an 14.6m-high obelisk standing in its middle. Loire The Loire ( / l w ɑːr / LWAR , US also / l u ˈ ɑːr / loo- AR , French: [lwaʁ] ; Occitan : Léger [ˈledʒe] ; Arpitan : Lêre ; Breton : Liger ; Latin : Liger )

765-470: A wide range of variations, from the early medieval to the late Renaissance periods. They were originally created as feudal strongholds, over centuries past, in the strategic divide between southern and northern France; now many are privately owned. The name "Loire" comes from Latin Liger , which is itself a transcription of the native Gaulish ( Celtic ) name of the river. The Gaulish name comes from

850-530: A ‘Natura 2000’ site under European Union environmental legislation. The WWF were particularly important in changing the perception of the French authorities in support for dam building to environmental protection and sustainable management of its river basin. In 1992, they aided the ‘Loire Nature’ project, which received funds of some $ US 9 million under the EU's ‘LIFE’ programme until 1999, embarking upon restoration to

935-418: Is 164 species, of which 54 are water birds, 44 species are common for managed forests, 41 to natural forests, 13 to open and 12 to rocky areas. This avifauna has been rather stable, at least between the 1980s and 2000s, with significant abundance variations observed only for 17 species. Of those, five species were growing in population, four declining, and other eight were fluctuating. Some of these variations had

SECTION 10

#1732776806633

1020-498: Is a 300 km (190 mi) stretch in the western reach of the river starting with Orléans and terminating at Nantes , 56 km (35 mi) short of the Loire estuary and the Atlantic Ocean. The tidal stretch of the river extends to a length of 60 km (37 mi) and a width of 3 km (1.9 mi), which has oil refineries, the port of Saint-Nazaire and 40,000 hectares (99,000 acres) of wetland whose formation

1105-536: Is common in the upper streams, whereas the flounder ( Platichtys flesus ) and flathead mullet ( Mugil spp.) tend to stay near the river mouth. The tributaries host brown trout ( Salmo trutta ), European bullhead ( Cottus gobio ), European brook lamprey ( Lampetra planeri ), zander ( Sander lucioperca ), nase ( Chondrostoma nasus and C. toxostoma ) and wels catfish ( Siluris glanis ). The endangered species include grayling ( Thymallus thymallus ), burbot ( Lota lota ) and bitterling ( Rhodeus sericeus ) and

1190-624: Is dated to 7500 BC (caused by inundation by sea waters on the northern bank of the estuary), and the beaches of Le Croisic and La Baule along the coastline. Its main tributaries include the rivers Maine , Nièvre and the Erdre on its right bank, and the rivers Allier , Cher , Indre , Vienne , and the Sèvre Nantaise on the left bank. The largest tributary of the river is the Allier , 410 km (250 mi) in length, which joins

1275-614: Is developing all along the Loire River from Montsoreau to Orléans with such places as Château de Montsoreau-Contemporary Art Museum , CCCOD Tours, the Domaine Régional de Chaumont sur Loire and the Frac Centre Orléans . They are a rare association of Renaissance architecture with contemporary art . The architectural heritage in the valley's historic towns is notable, especially its châteaux, such as

1360-419: Is identified as temperate maritime climate, and is characterised by the lack of dry seasons and by heavy rains and snowfall in winter, especially in the upper streams. The number of sunny hours per year varies between 1400 and 2200 and increases from northwest to southeast. The Loire Valley, in particular, enjoys a pleasant temperate climate. The region experiences a rainfall of 690 mm (27.2 in) along

1445-611: Is now crossed by the Route Nationale 156 . The bridge was listed as a historical monument by order of 22 April 1937. The bridge spans the Loire river in the middle of Blois , between the downtown (from the same axis of the Denis Papin staircase ) and Vienne on the left bank (aligned to Wilson Avenue ). Since the 11th century, a stone bridge was used to link both banks. In the night between 6 and 7 February 1716, this medieval bridge collapsed. The construction of

1530-530: Is one of the world's most well-known areas of wine production and includes several French wine regions situated along the river from the Muscadet region on the Atlantic coast to the regions of Sancerre and Pouilly-Fumé just southeast of the city of Orléans in north central France. Loire wines tend to exhibit a characteristic fruitiness with fresh, crisp flavors. On December 2, 2000, UNESCO added

1615-740: Is the longest river in France and the 171st longest in the world. With a length of 1,006 kilometres (625 mi), it drains 117,054 km (45,195 sq mi), more than a fifth of France's land, while its average discharge is only half that of the Rhône . It rises in the southeastern quarter of the French Massif Central in the Cévennes range (in the department of Ardèche ) at 1,350 m (4,430 ft) near Mont Gerbier de Jonc ; it flows north through Nevers to Orléans , then west through Tours and Nantes until it reaches

1700-493: The Bay of Biscay (Atlantic Ocean) at Saint-Nazaire . Its main tributaries include the rivers Nièvre , Maine and the Erdre on its right bank, and the rivers Allier , Cher , Indre , Vienne , and the Sèvre Nantaise on the left bank. The Loire gives its name to six departments: Loire , Haute-Loire , Loire-Atlantique , Indre-et-Loire , Maine-et-Loire , and Saône-et-Loire . The lower-central swathe of its valley straddling

1785-502: The Canal du Nivernais to the Canal latéral à la Loire . As of 2017 , the following sections are navigable: The French language adjective ligérien is derived from the name of the Loire, as in le climat ligérien ("the climate of the Loire Valley"). The climate is considered the most pleasant of northern France, with warmer winters and, more generally, fewer extremes in temperatures, rarely exceeding 38 °C (100 °F). It

SECTION 20

#1732776806633

1870-508: The Château de Montsoreau , Château d'Amboise , Château d'Azay-le-Rideau , Château de Chambord , Château de Chinon , Château du Rivau , Château d'Ussé , Château de Villandry and Chenonceau . The châteaux, numbering more than three hundred, include the necessary castle fortifications built in the 10th century but also the splendour of those built half a millennium later. When the French kings began constructing their huge châteaux here,

1955-688: The Neolithic period (6,000 to 4,500 BC), all of the recent Stone Age in Europe . Then came the Gauls , the local tribes during the Iron Age period of 1500 to 500 BC. They used the Loire as a key trading route by 600 BC, using pack horses to link its trade, such as the metals of the Armorican Massif , with Phoenicia and Ancient Greece via Lyon on the Rhône. Gallic rule ended in

2040-651: The Orléans . Reine claude ( Prunus domestica italica ) tree species was planted in the gardens of the Château. Asparagus was also brought from northwestern France. The river flows through the continental ecoregions of Massif central and Paris Basin south and in its Lower course partly through South Atlantic and Brittany . With more than 100 alga species, the Loire has the highest phytoplankton diversity among French rivers. The most abundant are diatoms and green algae (about 15% by mass) which mostly occur in

2125-655: The Pays de la Loire and Centre-Val de Loire regions was added to the World Heritage Sites list of UNESCO on December 2, 2000. Vineyards and châteaux are found along the banks of the river throughout this section and are a major tourist attraction. The human history of the Loire river valley is thought by some to begin with the Middle Palaeolithic period of 90–40 kya (thousand years ago), followed by modern humans (about 30 kya), succeeded by

2210-637: The War in the Vendée since they thought it was a more effective way of killing. Soon after the beginning of the 19th century, steam-driven passenger boats began to ply the river between Nantes and Orléans, making the upriver journey faster; by 1843, 70,000 passengers were being carried annually in the Lower Loire and 37,000 in the Upper Loire. But competition from the railway, beginning in the 1840s, caused

2295-451: The châteaux - and lands that have been cultivated and shaped by centuries of interaction between local populations and their physical environment, in particular the Loire itself." The Loire Valley chansonniers are a related group of songbooks attributed to the composers of the Loire Valley and are the earliest surviving examples of a new genre which offered a combination of words, music, and illuminations. A new Contemporary Art offer

2380-428: The pike ( Esox lucius ), which is the major predator of the Loire, as well as eel, carp, rudd and salmon. The great Loire salmon, a subspecies of Atlantic salmon , is regarded as the symbolic fish of the river. Its population has decreased from about 100,000 in the 19th century to below 100 in the 1990s that resulted in the adoption of a total ban of salmon fishing in the Loire basin in 1984. A salmon restoration program

2465-551: The plastics industry . The EC did not produce a report for the larger Loire Valley region. According to another source, tourism in the Loire Valley was supported by over 700 hotels and 550 restaurants in the region. In addition to the chateaux and some 700 other listed Historic monuments, attractions included three Regional nature Parks, 550 km of cycling tracks, 800 listed Historic monuments, over 100 museums and 30 golf courses. In April 2019, The Guardian 's travel section included one Loire Valley location in its list of 20 of

2550-569: The 10th century onwards with the defensive fortress like structures called the " keeps " or " donjons " built between 987 and 1040 by Anjou Count Foulques Nerra of Anjou (the Falcon). However, one of the oldest such structures in France is the Donjon de Foulques Nerra built in 944. This style was replaced by the religious architectural style in the 12th to 14th centuries when the impregnable château fortresses were built on top of rocky hills; one of

2635-423: The 367.5 km (228.4 mi) Cher , which joins the Loire near Cinq-Mars-la-Pile at 47°20′33″N 0°28′49″E  /  47.34250°N 0.48028°E  / 47.34250; 0.48028 and the 287 km (178 mi) Indre , which joins the Loire near Néman at 47°14′2″N 0°11′0″E  /  47.23389°N 0.18333°E  / 47.23389; 0.18333 . The geological formations in

Jacques-Gabriel Bridge - Misplaced Pages Continue

2720-767: The 3rd century, Christianity spread through the river basin, and many religious figures began cultivating vineyards along the river banks. In the 5th century, the Roman Empire declined and the Franks and the Alemanni came to the area from the east. Following this there was ongoing conflict between the Franks and the Visigoths . In 408, the Iranian tribe of Alans crossed the Loire and large hordes of them settled along

2805-406: The Atlantic Ocean at 47°16′44″N 2°10′19″W  /  47.27889°N 2.17194°W  / 47.27889; -2.17194 between Saint-Nazaire and Saint-Brevin-les-Pins , connected by a bridge over the river near its mouth. Several départements of France were named after the Loire. The Loire flows through the following départements and towns: The Loire Valley in the Loire river basin,

2890-699: The Bald died, marking an end to the Carolingian dynasty . After considerable conflict in the region, in 898 Foulques le Roux of Anjou gained power. During the Hundred Years' War from 1337 to 1453, the Loire marked the border between the French and the English, who occupied territory to the north. One-third of the inhabitants died in the epidemic of the Black Death of 1348–9. The English defeated

2975-537: The French in 1356 and Aquitaine came under English control in 1360. In 1429, Joan of Arc persuaded Charles VII to drive out the English from the country. Her successful relief of the siege of Orléans , on the Loire, was the turning point of the war. In 1477, the first printing press in France was established in Angers, and around this time the Chateau de Langeais and Chateau de Montsoreau were built. During

3060-616: The Gaulish word liga , which means "silt, sediment, deposit, alluvium", a word that gave French lie , as in sur lie , which in turn gave English lees . Liga comes from the Proto-Indo-European root * legʰ- , meaning "to lie, lay" as in the Welsh word Lleyg , and also which gave many words in English, such as to lie, to lay, ledge, law, etc. The source of the river lies in the eastern Massif Central , in springs to

3145-505: The Gauls in 52 BC and began developing Cenabum, which they named Aurelianis . They also began building the city of Caesarodunum , now Tours , from AD 1. The Romans used the Loire as far as Roanne , around 150 km (93 mi) downriver from the source. After AD 16, the Loire river valley became part of the Roman province of Aquitania , with its capital at Avaricum . From

3230-457: The Loire and Naussac Dam on the Allier . The Villerest dam, built in 1985 a few kilometres (a few miles) south of Roanne , has played a key-role in preventing recent flooding. As a result, the Loire is a very popular river for boating excursions, flowing through a pastoral countryside, past limestone cliffs and historic castles . Four nuclear power plants are located on the river: Belleville , Chinon , Dampierre and Saint-Laurent . In 1700

3315-562: The Loire near the town of Nevers at 46°57′34″N 3°4′44″E  /  46.95944°N 3.07889°E  / 46.95944; 3.07889 . Downstream of Nevers lies the Loire Valley , a UNESCO World Heritage Site due to its fine assortment of castles. The second-longest tributary, the 372 km (231 mi) Vienne , joins the Loire at Candes-Saint-Martin at 47°12′45″N 0°4′31″E  /  47.21250°N 0.07528°E  / 47.21250; 0.07528 , followed by

3400-433: The Loire river basin can be grouped into two sets of formations, namely, the basement domain and the domain of sedimentary formations. The basement domain primarily consists of metamorphic and siliceous fragmented rocks with groundwater occurring in fissures. The sedimentary domain consists of limestone and carbonaceous rocks, that, where saturated, form productive aquifers. Rock outcrops of granite or basalt also are exposed in

3485-442: The Loire river basin, that is, about 57 species from 20 families. Many of them are migratory, with 11 species ascending the river for spawning. The most common species are the Atlantic salmon ( Salmo salar ), sea trout ( Salmo trutta ), shads ( Alosa alosa and Alosa fallax ), sea lamprey ( Petromyzon marinus ) European river lamprey ( Lampetra fluviatilis ) and smelt ( Osmerus eperlanus ). The European eel ( Anguilla anguilla )

Jacques-Gabriel Bridge - Misplaced Pages Continue

3570-627: The Loire unnavigable for fish and water vessels as they were partially or completely dried up. The monarchy of France ruled in the Loire Valley for several centuries, giving it the name of "The Valley of Kings". These rulers started with the Gauls, followed by the Romans, and the Frankish dynasty . They were succeeded by the kings of France, who ruled from the late 14th century till the French Revolution ; together these rulers contributed to

3655-626: The Parsley frog ( Pelodites punctatus ), European tree frog ( Hyla arborea ), Common Frog ( Rana temporaria ), Agile Frog ( R. dalmatina ), Edible Frog ( R. esculenta ), Perez's Frog ( R. perezi ), marsh frog ( R. ridubunda ) and Pool Frog ( R. lessonae ). Newts of the Loire include the Marbled Newt ( Triturus marmoratus ), Smooth Newt ( T. vulgaris ), Alpine Newt ( T. alpestris ) and Palmate Newt ( T. helveticus ). The Loire hosts about 64% of nesting bird species of France, that

3740-505: The banks of the river – and also as the "cradle of the French language". It is also noteworthy for its architectural heritage: in part for its historic towns such as Amboise , Angers , Blois , Chinon , Nantes , Orléans , Saumur , and Tours , but in particular for its castles, such as the Château d'Amboise , Château d'Angers , Château de Chambord , Château de Montsoreau , Château d'Ussé , Château de Villandry and Chenonceau , and also for its many cultural monuments, which illustrate

3825-649: The campaign to save the Loire river system from development. In 1986, the French government , the Loire-Brittany Water Agency and the EPALA settled an agreement on flood prevention and water storage programme in the basin, involving construction of four large dams, one on the Loire itself and three on the Allier and Cher. The French government proposed a construction of a dam at Serre de la Fare on

3910-434: The central part of the river valley, between Chalonnes-sur-Loire and Sully-sur-Loire , to its list of World Heritage Sites. In choosing this area that includes the French départements of Loiret , Loir-et-Cher , Indre-et-Loire , and Maine-et-Loire , the committee said that the Loire Valley is: "an exceptional cultural landscape, of great beauty, comprised of historic cities and villages, great architectural monuments -

3995-445: The coast and 648 mm (25.5 in) inland. The Centre region of the Loire river valley accounts for the largest forest in France, the forest of Orléans (French: Forêt d'Orléans), covering an area of 38,234 hectares (94,480 acres), and the 5,440-hectare (13,400-acre) forested park known as the "Foret de Chambord". Other vegetation in the valley, mostly under private control, consists of tree species of oak , beech and pine . In

4080-468: The committee said that the Loire Valley is: "an exceptional cultural landscape, of great beauty, comprised of historic cities and villages, great architectural monuments – the Châteaux – and lands that have been cultivated and shaped by centuries of interaction between local populations and their physical environment, in particular the Loire itself." Architectural edifices were created in Loire valley from

4165-669: The confluence with the Allier. In the middle section of the river in the Loire Valley, numerous dikes built between the 12th and 19th century exist, providing mitigation against flooding. In this section the river is relatively straight, except for the area near Orléans , and numerous sand banks and islands exist. The lower course of the river is characterized by wetlands and fens, which are of major importance to conservation, given that they form unique habitats for migratory birds. The Loire flows roughly northward through Roanne and Nevers to Orléans and thereafter westward through Tours to Nantes , where it forms an estuary . It flows into

4250-518: The conservation of the Loire estuary and its surroundings, given that they are unique habitats for migrating birds. The estuary and its shoreline are also important for fishing, shellfish farming and tourism. The major commercial port at Nantes has caused severe damage to the ecosystem of the Loire estuary. In 2002, the WWF aided a second Loire Nature project and expanded its scope to the entire basin, addressing some 4,500 hectares (11,000 acres) of land under

4335-463: The design of the châteaux in the 15th century before the Baroque style came into prominence with decorative and elegantly designed interiors and which became fashionable from the 16th to the end of the 18th century. Loire Valley The valley includes historic towns such as Amboise , Angers , Blois , Chinon , Montsoreau , Orléans , Saumur , and Tours . The climate is favorable most of

SECTION 50

#1732776806633

4420-511: The development of the valley. The chronology of the rulers is presented; in the table below. The Loire Valley ( French : Vallée de la Loire ) lies in the middle stretch of the river, extends for about 280 km (170 mi) and comprises an area of roughly 800 km (310 sq mi). It is also known as the Garden of France – due to the abundance of vineyards , fruit orchards, artichoke , asparagus and cherry fields which line

4505-504: The economy in the Pays-de-la-Loire region: services (including tourism) provided 66.7% of employment, industry 26.5% and agriculture, 3.9%. The unemployment rate was 8.8%. In 2015, the region ranked eighth in France in terms of economic performance producing 5.0% of the gross domestic product. Important economic sectors included leather goods, textile, shipyard/construction and aeronautics, agriculture and food-processing as well as

4590-424: The flow sometimes exceeds 2,000 m /s (71,000 cu ft/s) for the Upper Loire and 8,000 m /s (280,000 cu ft/s) in the Lower Loire. The most serious floods occurred in 1856, 1866 and 1911. Unlike most other rivers in western Europe, there are very few dams or locks creating obstacles to its natural flow. The flow is no longer partly regulated by three dams: Grangent Dam and Villerest Dam on

4675-508: The foot of Mount have been highlighted as river sources. The three streams converge to form the Loire, which descends the valley south of Mount through the village of Sainte-Eulalie itself. The Loire changed its course, due to tectonic deformations, from the original outfall into the English Channel to its new outfall into the Atlantic Ocean thereby forming today's narrow terrain of gorges, the Loire Valley with alluvium formations and

4760-693: The ideals of the Renaissance and the Age of the Enlightenment on western European thought and design. On December 2, 2000, UNESCO added the central part of the Loire valley, between Bouchemaine in Anjou and Sully-sur-Loire in Loiret , to its list of World Heritage Sites . In choosing this area that includes the French départements of Loiret, Loir-et-Cher , Indre-et-Loire , and Maine-et-Loire ,

4845-424: The impressive fortresses of this type is the Château d'Angers , which has 17 gruesome towers. This was followed by aesthetically built châteaux (to also function as residential units), which substituted the quadrangular layout of the keep. However, the exterior defensive structures, in the form of portcullis and moats surrounding the thick walls of the châteaux' forts were retained. There was further refinement in

4930-444: The long stretch of beaches along the Atlantic Ocean. The river can be divided into three main zones: In the upper basin the river flows through a narrow, incised valley, marked by gorges and forests on the edges and a distinct low population. In the intermediate section, the alluvial plain broadens and the river meanders and forks into multiple channels. River flow is particularly high in the river area near Roanne and Vichy up to

5015-615: The lower reaches. Their total mass is low when the river flow exceeds 800 m /s (28,000 cu ft/s) and become significant at flows of 300 m /s (11,000 cu ft/s) or lower which occur in summer. With decreasing flow, first species which appear are single-celled diatoms such as Cyclostephanos invisitatus , C. meneghiniana , S. Hantzschii and Thalassiosira pseudonana . They are then joined by multicellular forms including Fragilaria crotonensis , Nitzschia fruticosa and Skeletonema potamos , as well as green algae which form star-shaped or prostrate colonies. Whereas

5100-537: The marshy lands, ash , alder and willows are grown with duckweed providing the needed natural fertilizing effect. The Atlantic coast is home to several aquatic herbs, the important species is Salicornia , which is used as a culinary ingredient on account of its diuretic value. Greeks introduced vines . Romans introduced melons , apples , cherries , quinces and pears during the Middle Ages, apart from extracting saffron from purple crocus species in

5185-579: The middle course of the Loire in Gaul under King Sangiban . Many inhabitants around the present city of Orléans have names bearing witness to the Alan presence – Allaines. In the 9th century, the Vikings began invading the west coast of France, using longships to navigate the Loire. In 853 they attacked and destroyed Tours and its famous abbey, later destroying Angers in raids of 854 and 872. In 877 Charles

SECTION 60

#1732776806633

5270-577: The most beautiful villages in France : Montrésor , "a fairytale village with a rich history" evidenced by "the wool market, the Halle de Cardeux, ... the 16th-century Logis du Chancelier, ... a riverside walk, Balcons de l’Indrois, [and] ... Jardinier Bridge". According to a 2017 report by CNN , the 42 chateaux that make up the UNESCO World Heritage Site receive over 3.3 million visitors per year. The Telegraph newspaper (2014) listed

5355-434: The nobility, not wanting or even daring to be far from the seat of power, followed suit. Their presence in the lush, fertile valley began attracting the very best landscape designers. In addition to its many châteaux, the cultural monuments illustrate to an exceptional degree the ideals of the Renaissance and the Age of the Enlightenment on western European thought and design. Many of the châteaux were designed to be built on

5440-531: The non-native species are represented by the rock bass ( Ambloplites rupestris ). Although only one native fish species has become extinct in the Loire, namely the European sea sturgeon ( Acipenser sturio ) in the 1940s, the fish population is declining, mostly due to the decrease in the spawning areas. The latter are mostly affected by the industrial pollution, construction of dams and drainage of oxbows and swamps . The loss of spawning grounds mostly affects

5525-491: The port of Nantes numbered more inland waterway craft than any other port in France, testifying to the historic importance of navigation on France's longest river. Shallow-draught gabares and other river craft continued to transport goods into the industrial era, including coal from Saint-Étienne loaded on to barges in Orléans. However, the hazardous free-flow navigation and limited tonnages meant that railways rapidly killed off

5610-453: The projects the green light. This sparked public demonstrations by the WWF and conservation groups. In 1990, Loire Vivante met with the French Prime Minister and the government, successfully, as the government demanded that the EPALA embark upon major reforms in its approach to managing the river. Due to extensive lobbying, the proposal and the other dam proposals were eventually rejected in the 1990s. The gorges zone has since been protected as

5695-518: The region of Gien , flowing westward along the present course. At a certain point during the long history of uplift in the Paris Basin , the lower, Atlantic Loire captured the "palaeo-Loire" or Loire séquanaise (" Seine Loire"), producing the present river. The former bed of the Loire séquanaise is occupied by the Loing . The Loire Valley has been inhabited since the Middle Palaeolithic period from 40 to 90  ka . Neanderthal man used stone tools to fashion boats out of tree trunks and navigated

5780-446: The reign of François I from 1515 to 1547, the Italian Renaissance had a profound influence upon the region, as people adopted its elements in the architecture and culture, particularly among the elite who expressed its principles in their chateaus . In the 1530s, the Reformation ideas reached the Loire valley, with some people becoming Protestant. Religious wars followed and in 1560 Catholics drowned several hundred Protestants in

5865-407: The river Cher at Noyers and back into the Loire near Tours, was closed in 1955. The river is officially navigable as far as Bouchemaine , where the Maine joins it near Angers . Another short stretch much further upstream at Decize is also navigable, where a river level crossing from the Canal latéral à la Loire connects to the Canal du Nivernais . In 2022, a drought rendered parts of

5950-445: The river and spawn in the upper reaches of the Allier. The French government undertook this major plan, chiefly because pollution and overfishing had reduced approximately 100,000 salmon migrating annually to their spawning grounds in the headwaters of the Loire and its tributaries to just 67 salmon in 1996 on the upper Allier. The WWF, BirdLife International , and local conservation bodies have also made considerable efforts to improve

6035-425: The river bed in several stretches. The middle stretches of the river have many limestone caves which were inhabited by humans in the prehistoric era; the caves are several types of limestone formations, namely tuffeau (a porous type of chalk , not to be confused with tufa ) and Falun (formed 12 million years ago). The coastal zone shows hard dark stones, granite, schist and thick soil mantle. The river has

6120-629: The river's ecosystems and wildlife. That year, the Upper Loire Valley Farmers Association was also established through a partnership between SOS Loire Vivante and a farmers’ union to promote sustainable rural tourism. The French government adopted the Natural Loire River Plan (Plan Loire Grandeur Nature) in January 1994, initiating the decommissioning of three dams on the river. The final dam

6205-620: The river. During the Wars of Religion from 1562 to 1598, Orléans served as a prominent stronghold for the Huguenots but in 1568, Protestants blew up Orléans Cathedral . In 1572 some 3000 Huguenots were slaughtered in Paris in the St. Bartholomew's Day massacre . Hundreds more were drowned in the Loire by Catholics. For centuries local people used wooden embankments and dredging to try to maintain

6290-530: The river. Modern man inhabited the Loire valley around 30 ka. By around 5000 to 4000 BC, they began clearing forests along the river edges and cultivating the lands and rearing livestock. They built megaliths to worship the dead, especially from around 3500 BC. The Gauls arrived in the valley between 1500 and 500 BC, and the Carnutes settled in Cenabum in what is now Orléans and built

6375-567: The south side of Mont Gerbier de Jonc at 44°50′38″N 4°13′12″E  /  44.84389°N 4.22000°E  / 44.84389; 4.22000 . This lies in the north-eastern part of the southern Cévennes highlands, in the Ardèche commune of Sainte-Eulalie of southeastern France. It is originally a mere trickle of water located at 1,408 m (4,619 ft) above sea-level . The presence of an aquifer under Mont Gerbier de Jonc gives rise to multiple sources, three of them located at

6460-471: The surviving traffic from the 1850s. In 1894 a company was set up to promote improvements to the navigation from Nantes to Briare. The works were authorised in 1904 and carried out in two phases from Angers to the limit of tides at Oudon. These works, with groynes and submersible embankments, survive and contribute to the limited navigability under present-day conditions. A dam across the Loire at Saint-Léger-des-Vignes provides navigable conditions to cross from

6545-440: The top of hills, one example of this is the Château d'Amboise . Many of the châteaux had extremely detailed and expensive churches on the grounds, or within the actual château itself. The Château de Montsoreau is the only château to have been built in the Loire riverbed, it is also the only one to be entirely dedicated to contemporary art . The European Commission reported that in 2016, three categories accounted for most of

6630-467: The total biomass is low in the upper reaches, the biodiversity is high, with more than 250 taxa at Orléans. At high flows and in the upper reaches the fraction of the green algae decrease and the phytoplankton is dominated by diatoms. Heterotrophic bacteria are represented by cocci (49%), rods (35%), colonies (12%) and filaments (4%) with a total density of up to 1.4 × 10 cells per litre. Nearly every freshwater fish species of France can be found in

6715-659: The upper Loire which would have been an environmental catastrophe, as it would have inundated some 20 km (12 mi) of pristine gorges . As a result, the WWF and other NGOs established the Loire Vivante (Living Loire) network in 1988 to oppose this and arranged an initial meeting with the French Minister of the Environment. The French government initially rejected the conservation concerns and in 1989 gave

6800-475: The valley in 56 BC when Julius Caesar conquered the adjacent provinces for Rome . Christianity was introduced into this valley from the 3rd century AD, as missionaries (many later recognized as saints ), converted the pagans . In this period, settlers established vineyards and began producing wines. The Loire Valley has been called the "Garden of France" and is studded with over a thousand châteaux , each with distinct architectural embellishments covering

6885-488: The world for quite some time. The Canal de Roanne à Digoin was also opened in 1838. It was nearly closed in 1971 but, in the early 21st century, it still provides navigation further up the Loire valley to Digoin . The 261 km (162 mi) Canal de Berry , a narrow canal with locks only 2.7 m (8.9 ft) wide, which was opened in the 1820s and connected the Canal latéral à la Loire at Marseilles-lès-Aubigny to

6970-525: The year, the river often acting as a line of demarcation in France's weather between the northern climate and the southern. The river has a significant effect on the mesoclimate of the region, adding a few degrees of temperature. The climate can be cool with springtime frost while wine harvest months may have rain. Summers are hot; however, influences from the Atlantic moderate the temperature with breezes. Temperature, rainfall and average sunshine time in Angers ( Anjou ): The Loire Valley wine region

7055-421: Was decommissioned by Électricité de France at a cost of 7 million francs in 1998. The basis of the decision was that the economic benefits of the dams did not outweigh their significant ecological impacts, so the intention was to restore the riverine ecosystems and replenish great Loire salmon stocks. The Loire is unique in this respect as the Atlantic salmon can swim as far as 900 km (560 mi) up

7140-603: Was initiated in the 1980s and included such as measures as removal of two obsolete hydroelectric dams and introduction of juvenile stock. As a result, the salmon population increased to about 500 in 2005. Most amphibians of the Loire are found in the slow flow areas near the delta, especially in the floodplain, marshes and oxbows. They are dominated by the fire salamander ( Salamandra salamandra ), frogs and toads. The toads include Bufo bufo , Alytes obstetricans , Bombina variegata , Bufo calamita , Pelobates fuscus and Pelobates cultripes . The frogs are represented by

7225-421: Was still frequently stopped by excessive conditions during flood and drought. In 1707, floods were said to have drowned 50,000 people in the river valley, with the water rising more than 3 m (9.8 ft) in two hours in Orléans . Typically passenger travel downriver from Orléans to Nantes took eight days, with the upstream journey against the flow taking fourteen. It was also a dumping ground for prisoners in

#632367