500px, Map of the area following the construction of the canal During the first

Jura water correction The correction of the waters of the Swiss Jura consisted of a wide series of hydrological undertakings carried out in Switzerland in the region of the three lakes: Lake Morat connected to Lake Neuchatel by the Broye Canal, the latter connected t ...

, a temporary dam had been built across the Nidau-Büren channel in order to maintain the water level in

Lake Bienne __NOTOC__ Lake Bienne or Lake Biel (french: Lac de Bienne ; german: Bielersee) is a lake in western Switzerland. Together with Lake Morat and Lake Neuchâtel, it is one of the three large lakes in the Jura region of Switzerland. It lies approxima ...

. Of insufficient retaining capacity, another one in 1887 that also showed its limits, especially during a flood in 1910, quickly replaced it. Soon, the cantons of

Vaud Vaud ( ; french: (Canton de) Vaud, ; german: (Kanton) Waadt, or ), more formally the canton of Vaud, is one of the 26 cantons forming the Swiss Confederation. It is composed of ten districts and its capital city is Lausanne. Its coat of arms b ...

Neuchâtel , neighboring_municipalities= Auvernier, Boudry, Chabrey (VD), Colombier, Cressier, Cudrefin (VD), Delley-Portalban (FR), Enges, Fenin-Vilars-Saules, Hauterive, Saint-Blaise, Savagnier , twintowns = Aarau (Switzerland), Besançon (France), ...

and

Fribourg , neighboring_municipalities= Düdingen, Givisiez, Granges-Paccot, Marly, Pierrafortscha, Sankt Ursen, Tafers, Villars-sur-Glâne , twintowns = Rueil-Malmaison (France) , website = www.ville-fribourg.ch , Location of , Location of () () o ...

required its replacement, but it was only modified in 1911 and 1915. Finally, the building of the new regulating dam was started in

Port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ham ...

in 1936, and completed and commissioned in 1939. This dam ensures the level control of the three lakes of

Morat Morat may refer to: * Morat, Switzerland, or Murten, a town in Switzerland * Battle of Morat (1476), between the Swiss Federation and Charles I, Duke of Burgundy * Morat (band), a Colombian folk band * Morat, a type of mead that uses mulberries. S ...

and

Bienne , french: Biennois(e) , neighboring_municipalities= Brügg, Ipsach, Leubringen/Magglingen (''Evilard/Macolin''), Nidau, Orpund, Orvin, Pieterlen, Port, Safnern, Tüscherz-Alfermée, Vauffelin , twintowns = Iserlohn (Germany) B ...

, an area so called the " Seeland”,as well as the outflow of the

Aare The Aare () or Aar () is a tributary of the High Rhine and the longest river that both rises and ends entirely within Switzerland. Its total length from its source to its junction with the Rhine comprises about , during which distance it descend ...

river downstream toward Solothurn, Aargau and the junction with

Emme River The Emme is a river in Switzerland. It rises in the Alps between the peaks of Hohgant and Augstmatthorn in the canton of Bern. The Emme is long and flows through the Emmental and between Zuchwil and Luterbach into the Aare. The drainage area i ...

down to the merging with the

Rhine ), Surselva, Graubünden, Switzerland , source1_coordinates= , source1_elevation = , source2 = Rein Posteriur/Hinterrhein , source2_location = Paradies Glacier, Graubünden, Switzerland , source2_coordinates= , so ...

River. The three lakes act as a

buffer zone A buffer zone is a neutral zonal area that lies between two or more bodies of land, usually pertaining to countries. Depending on the type of buffer zone, it may serve to separate regions or conjoin them. Common types of buffer zones are demil ...

, absorbing waters of the Aare in the event of any upstream flooding as far as the lakes

Thun , neighboring_municipalities= Amsoldingen, Heiligenschwendi, Heimberg, Hilterfingen, Homberg, Schwendibach, Spiez, Steffisburg, Thierachern, Uetendorf, Zwieselberg , twintown = , website = www.thun.ch Thun (french: Thoune) ...

and

Brienz Brienz ( , , ) is a village and municipality on the northern shore of Lake Brienz, at the foot of the Brienzer Rothorn mountain, and in the Bernese Oberland region of Switzerland. Besides the village of Brienz, the municipality includes the sett ...

and of course “ Grand Marais”. Since the Second Jura water correction, the Murgenthal Status regulates the maximum and minimum levels of the three lakes, as well as the maximum outflow downstream. The system was completed with the Flumenthal dam regulating the flow further downstream of the merging of river

Emme Emme may refer to: People: * Ivan Fyodorovich Emme (1763–1839), Russian lieutenant general in the Napoleonic Wars * Otto J. Emme, American politician and World War I veteran * Emme Gerhard (1872–1946), American photographer * Emme Rylan, Am ...

Sources

* par l'Office de l'économie hydraulique du canton de Berne * par l'Office de l'économie hydraulique du canton de Berne *

References

{{coord missing, Switzerland Canals in Switzerland Water transport in Switzerland