The Nidau-Büren Canal (, ) is a -long canal that drains the waters of the river

Aare The Aare () or Aar () is the main tributary of the High Rhine (its discharge even exceeds that of the latter at their confluence) and the longest river that both rises and ends entirely within Switzerland. Its total length from its source to i ...

out of the Lake of Biel/Bienne toward

Solothurn Solothurn ( ; ; ; ; ) is a town, a municipality, and the capital of the canton of Solothurn in Switzerland. It is located in the north-west of Switzerland on the banks of the Aare and on the foot of the Weissenstein Jura mountains. The town is ...

. It was dug as an important part of 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 Murten connected to Lake Neuchatel by the Broye Canal, the latter connec ...

Regulating dam

A temporary dam had been built across the Nidau-Büren channel, in order to maintain the water level in the lake. Of insufficient retaining capacity, another one was erected in 1887 that also showed its limits, especially during a flood in 1910. Soon, the cantons of

Vaud Vaud ( ; , ), more formally Canton of Vaud, is one of the Cantons of Switzerland, 26 cantons forming the Switzerland, Swiss Confederation. It is composed of Subdivisions of the canton of Vaud, ten districts; its capital city is Lausanne. Its coat ...

Neuchâtel Neuchâtel (, ; ; ) is a list of towns in Switzerland, town, a Municipalities of Switzerland, municipality, and the capital (political), capital of the cantons of Switzerland, Swiss canton of Neuchâtel (canton), Neuchâtel on Lake Neuchâtel ...

and

Fribourg or is the capital of the Cantons of Switzerland, Swiss canton of Canton of Fribourg, Fribourg and district of Sarine (district), La Sarine. Located on both sides of the river Saane/Sarine, on the Swiss Plateau, it is a major economic, adminis ...

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 Hamburg, Manch ...

in 1936, and it was completed and commissioned in 1939 and has been daily in use ever since. The dam includes a

lock Lock(s) or Locked may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainme ...

that is large enough for tour boats that run between Biel and Solothurn. In 1995 a

hydroelectric Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other Renewable energ ...

plant was added to the lock. This plant, located near Brügg produces an average of 25 Million

Kilowatt-hours A kilowatt-hour ( unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units, which is the energy delivered by one kilowatt of power for one hour. Kilowatt-hours are a commo ...

per year.

References

Canals in Switzerland Water transport in Switzerland Canals opened in 1868 CNidau-Buren {{Bern-geo-stub