Tammerkoski is a channel of
rapids
Rapids are sections of a river where the river bed has a relatively steep gradient, causing an increase in water velocity and turbulence.
Rapids are hydrological features between a ''run'' (a smoothly flowing part of a stream) and a ''cascade''. ...
in
Tampere
Tampere ( , , ; sv, Tammerfors, ) is a city in the Pirkanmaa region, located in the western part of Finland. Tampere is the most populous inland city in the Nordic countries. It has a population of 244,029; the urban area has a population o ...
,
Finland
Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...
. The city of Tampere is located between two lakes,
Näsijärvi
Näsijärvi () is a lake above sea level, in the Pirkanmaa region of southern Finland. Näsijärvi is the biggest lake in the Tampere area at in size. The city of Tampere was built along the Tammerkoski rapids, through which the lake drains int ...
and
Pyhäjärvi
Pyhäjärvi (1993–1995 ''Pyhäsalmi'') is a town and municipality in the south of Northern Ostrobothnia region, Finland. Pyhäjärvi also borders the Northern Savonia and Central Finland regions. The town belongs to the subregion of Nivala–Ha ...
. The difference in altitude between these two is and the water flows from Näsijärvi to Pyhäjärvi through the Tammerkoski rapids.
The banks of the Tammerkoski are among the oldest industrial areas in Finland. There was a busy marketplace in the 17th century. Tampere was founded on the banks of the rapids, as the rushing water provided a great deal of power for the needs of industry.
There are four power stations and three dams located on the Tammerkoski. The highest in altitude is the dam between
Finlayson and
Tampella
Oy Tampella Ab was a Finnish heavy industry manufacturer, a maker of paper machines, locomotives, military weaponry, as well as wood-based products such as packaging. The company was based mainly in the Naistenlahti district of the city of ...
. From this dam, the stream is led to the power stations of Finlayson and Tampella on either side of the rapids. In the middle, there is the city's power plant and the lowest one in terms of altitude is the dam at the Tako paperboard mill, which belongs to
M-real. The three uppermost power stations are owned by the city, while the powerstation by Tako is owned mostly by the municipal power company of
Southern Savonia
South Savo (or Southern Savonia; fi, Etelä-Savo; sv, Södra Savolax) is a region in the south-east of Finland. It borders the regions of North Savo, North Karelia, South Karelia, Kymenlaakso, Päijät-Häme, and Central Finland. The total area ...
.
History
The Tammerkoski has been mentioned in official documents since 1405. In the 15th century, the first dams were built on the channel. The first argument over milling plant rights happened in 1466, when
Takahuhti
Takahuhti is a district in Tampere, Finland. It is located in eastern part of the city, close to Atala, Linnainmaa, Kissanmaa and Messukylä. There are many prehistoric residences and finds in the area. Takahuhti was the largest village in Mess ...
,
Messukylä
Messukylä ( sv, Messukylä, also ) is a former municipality of Finland which was annexed by the city of Tampere in 1947. The medieval stone church (built c. 1540) in Messukylä is the oldest building in Tampere. During the Civil War (1918), Mess ...
and Tammerkoski argued over their shares. About a hundred years later the government noticed the possibilities in the area and tried to replace the peasant-controlled dams with their own. The attempt was unsuccessful due to opposition from the inhabitants.
In the 17th century, a popular and well-known marketplace was established in the Tammerkoski area. The permanent marketplace remained near the Tammerkosken kartano (''Tammerkoski manor''), west of the bridge over the channel. At the beginning of the 18th century, the main marketplace was moved to Harju.
In 1775, King
Gustav III of Sweden
Gustav III (29 March 1792), also called ''Gustavus III'', was King of Sweden from 1771 until his assassination in 1792. He was the eldest son of Adolf Frederick of Sweden and Queen Louisa Ulrika of Prussia.
Gustav was a vocal opponent of what ...
travelled to Finland and signed the charter of foundation for Tammerkoski, a city later renamed to Tampere. A wooden bridge over the Tammerkoski was constructed in 1807. This was later replaced by an iron bridge in 1884 and an iron-concrete bridge named
Hämeensilta
Hämeensilta (the ″Häme Bridge″) is a bridge in Tampere, Finland, crossing the Tammerkoski rapids. The main street of Tampere, Hämeenkatu, runs along the bridge, connecting the Kyttälä district to the western parts of the city center. Häme ...
in 1929. For motor vehicle use, many other bridges have since been built. These include Ratinan silta,
Satakunnansilta
Satakunnansilta (the ″Satakunta Bridge″) is an old bridge in Tampere, Finland, that crosses the Tammerkoski rapids north of Hämeensilta. The bridge is part of the Satakunnankatu street and is used by both vehicle traffic and pedestrians.
T ...
and Paasikivensilta. For light traffic use, there are Ratinan suvannon silta and Patosilta. There is also a two-track railroad bridge.
By the beginning of the 1990s, most industry had disappeared from the banks of the Tammerkoski. The Tako paperboard mill is the only major industrial installation still operational in the area, producing mainly high-quality packaging products for luxury items such as
French perfume. The buildings of the old factories have been turned into restaurants and museums among other uses. The waters of the Tammerkoski are rather unpolluted, belonging to the quality class II in the classification of the Finnish environmental authority and the channel is popular with fishermen.
Vesistöjen laatuluokituskartta.
''Ympäristö.fi''. (The quality classification map of Pirkanmaa surface waters) Retrieved 2007-11-06
References
External links
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{{Tampere Cityscape
Tampere
Rivers of Finland
Kokemäenjoki basin
Landforms of Pirkanmaa