Ohra Dam

Last updated
Ohra Dam
Ohra-Talsperre Dam from south.jpg
Location Landkreis Gotha
Coordinates 50°45′55″N10°43′14″E / 50.7652°N 10.7206°E / 50.7652; 10.7206 Coordinates: 50°45′55″N10°43′14″E / 50.7652°N 10.7206°E / 50.7652; 10.7206
Construction began 1960–1966
Dam and spillways
Impounds Ohra, Kernwasser
Height (foundation) 59 m
Height (thalweg) 55 m
Length 260 m
Elevation at crest 528.00 m
Width (crest) 6 m
Dam volume 950,000 m³
Reservoir
Total capacity 18.4 M m³
Active capacity 17.5 M m³
Catchment area 67.4 km² (33 via diversion channel)
Surface area 82 ha
Normal elevation 525.00 m
Power Station
Installed capacity 400 kW

The Ohra Dam (German : Ohra-Talsperre orTalsperre Ohra) is a dam which impounds the Ohra in the German state of Thuringia. It lies on the northern side of the Thuringian Forest in the county of Gotha near the village of Luisenthal.

German language West Germanic language

German is a West Germanic language that is mainly spoken in Central Europe. It is the most widely spoken and official or co-official language in Germany, Austria, Switzerland, South Tyrol (Italy), the German-speaking Community of Belgium, and Liechtenstein. It is also one of the three official languages of Luxembourg and a co-official language in the Opole Voivodeship in Poland. The languages which are most similar to German are the other members of the West Germanic language branch: Afrikaans, Dutch, English, the Frisian languages, Low German/Low Saxon, Luxembourgish, and Yiddish. There are also strong similarities in vocabulary with Danish, Norwegian and Swedish, although those belong to the North Germanic group. German is the second most widely spoken Germanic language, after English.

Dam A barrier that stops or restricts the flow of surface or underground streams

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect water or for storage of water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC.

Ohra river in Germany

Ohra is a river of Thuringia, Germany. It flows into the Apfelstädt near Hohenkirchen.

Contents

Description

The Ohra Reservoir is mainly used to store drinking water and supplies over 400,000 inhabitant in Central Thuringia. Its storage volumen is around 18 million m³. The reservoir has retained a near-natural character. In the course of the construction of the dam 20 homes, a saw mill and the old boiler smithy of the village of Schwarzwald were demolished and the road to Oberhof re-routed. The country pub, "Untere Schweizerhütte" had to close due to its location within the reservoir catchment and was also torn down. [1]

Drinking water water safe for consumption

Drinking water, also known as potable water, is water that is safe to drink or to use for food preparation. The amount of drinking water required varies. It depends on physical activity, age, health issues, and environmental conditions. Americans, on average, drink one litre of water a day and 95% drink less than three litres per day. For those who work in a hot climate, up to 16 litres a day may be required. Water is essential for life.

Structures

The barrier is a straight rock-filled dam with a concrete-slab face. In the period leading up to the year 2000, a general maintenance programme was carried out on the dam and its inlet structure.

Concrete Composite construction material

Concrete, usually Portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement that hardens over time—most frequently a lime-based cement binder, such as Portland cement, but sometimes with other hydraulic cements, such as a calcium aluminate cement. It is distinguished from other, non-cementitious types of concrete all binding some form of aggregate together, including asphalt concrete with a bitumen binder, which is frequently used for road surfaces, and polymer concretes that use polymers as a binder.

The water treatment plant is located just below the dam. As well as supplying drinking water, electricity is also generated. The hydropower station is a circular shaft to the side of the dam. To en dem Staudamm. The reservoir has two forebays for preclearing called the Kerngrund and Silbergrund. Their dams have heights of 14.5 and 12 metres respectively.

Water treatment Process that improves the quality of water

Water treatment is any process that improves the quality of water to make it more acceptable for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants and undesirable components, or reduces their concentration so that the water becomes fit for its desired end-use. This treatment is crucial to human health and allows humans to benefit from both drinking and irrigation use.

Forebay (reservoir)

A forebay is an artificial pool of water in front of a larger body of water. The larger body of water may be natural or man-made.

The inflow to the reservoir is ensured through the use of tunnels diverting water from the Zahme Gera and Schmalwasser.

Zahme Gera river in Thuringia, Germany

Zahme Gera is a river of Thuringia, Germany. At its confluence with the Wilde Gera in Plaue, the Gera is formed.

Literature

See also

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References

  1. History of Luisenthal on the website of the town of Ohrdruf Archived 2013-06-24 at the Wayback Machine .