Elbe Sluice

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Elbe Sluice
Ústí nad Labem, Ústí nad Labem Region
Masarykovo zdymadlo s hradem Střekov.JPG
Elbe Sluice with Střekov castle
Elbe Sluice is located in Czech Republic
Elbe Sluice
Elbe Sluice
Coordinates50°38′19″N 14°02′53″E / 50.63861°N 14.04806°E / 50.63861; 14.04806 (Elbe Sluice)Coordinates: 50°38′19″N 14°02′53″E / 50.63861°N 14.04806°E / 50.63861; 14.04806 (Elbe Sluice)
TypeWaterworks
Site history
Built1935

The Elbe Sluice (also known as sluice, or Masaryk sluice or T.G. Masaryk sluice) is a lock on the Elbe river in Ústí nad Labem, Czech republic, located immediately below the Střekov Castle. The waterworks were built between 1923 and 1935[1] according to plans of architect .[2] Their main purpose was to navigate the Elbe in the area of the Střekov rapids, which were often impassable. In its time it was one of the largest waterworks in the country and one with the most modern technical concept in Europe.[3] The hydroelectric power plant, which is part of the sluice, was put into operation in 1935.[1] the waterworks is built in the functionalism style.

The Elbe road is one of the most important waterways in the Czech Republic. Two and a half thousand ships got through this lock in 2010.[4]

The sluice was declared a Czech cultural monument in 1958.[1]

Sluice

Description[]

Part of the waterworks are two locks, a hydroelectric station with three vertically installed Kaplan turbines. Within the facility, a differential of 10 meters in the water levels can be achieved. Part of the barrage is a fish pass. A vast bulk of the original sluice equipment has remained fully operational up to date even though their expected useful life was estimated for 20 years.[5]

Weir[]

The weir is 111 m long, it is divided by three pillars into four fields, each 24 meters wide. The pillars are 5 m wide and lined with granite blocks at the bottom. The weir elevates the river to a distance of 19.8 km, the maximum height difference between the upper and lower level is 9.75 m.[2]

Fish pass[]

In the pillar that separates the weir and the power plant, a chamber-type fish crossing was established in 2002 replacing the original, defunct, one.[6] To accommodate the large difference in water levels, its length is 253 m. It is equipped with three adjustable cross walls and with an observation point for the migration control.[7] However, years of experience have shown that only some medium-sized fish migrate through it. In 2017 a study was published on "Promoting migration of salmon at waterworks Střekov" [6] with suggestions on how to rebuilt the sluice so it can accommodate passage of larger fish such as salmon.

Lock

Chambers[]

There are two lock chambers, a small one measuring 2 × 82.5 m × 13 m and a large one measuring 170 m × 24 m.

Hydroelectric power plant[]

Three vertical Kaplan turbines with a total output of 19.5 MW are installed in the hydroelectric power plant. This power plant engaged at all times - not only at peak energy levels, as is the prevailing custom elsewhere. Due to the unfinished river bank roads, the operating regulations allow for backwater up to 141.8 meters above the sea level. For the same reason the gradient has been reduced to 7 meters and the output to 3 × 5 MW. With a total output of 15 MW, it is the largest flow-through power plant in the .[8] The average annual production is 80- 100 mil. kWh.[9]

Reservoir[]

The creates a 19.8 km long lake with a total volume of 16.1 million m³.[9] In addition to ensuring navigability, it reduces the flooding risk in the Lovosice - Zálezly section. It also allows surface water abstraction for farming purposes.[9]

Recognition[]

The sluice was declared a Czech cultural monument in 1958.[1]

In 2009 the Czech National bank issued a 2500 CZK commemorative gold coin as part of the Industrial Heritage Sites series. The coin was designed by .[10]

References[]

  1. ^ Jump up to: a b c d "zdymadla - Památkový Katalog". www.pamatkovykatalog.cz. Retrieved 2019-10-01.
  2. ^ Jump up to: a b "Střekov Sluice - Czech republic (en.infoglobe.cz)". en.infoglobe.cz. Retrieved 2019-10-01.
  3. ^ "Zdymadlo Střekov na Labi/Lock Střekov". Archived from the original on 2010-09-23.
  4. ^ "Česká pýcha. Vodní dílo Střekov je úžasnou technickou památkou". iDNES.cz. 2012-03-23. Retrieved 2019-10-01.
  5. ^ "Masaryk Sluices - Magistrát města Ústí nad Labem". www.usti-nad-labem.cz. Retrieved 2019-10-01.
  6. ^ Jump up to: a b "PODPORA MIGRACE LOSOSA OBECNÉHO" (PDF).
  7. ^ "Masarykovo zdymadlo Střekov na Labi v ř. km 767,679 Stručná historie výstavby vodního díla - PDF". docplayer.cz. Retrieved 2019-10-01.
  8. ^ "Labe a jeho povodí; p.92" (PDF).
  9. ^ Jump up to: a b c "Vodni dila -Strekov". Archived from the original on 2014-01-12. Retrieved 2019-10-01.
  10. ^ , Wikipedia, 2019-09-30, retrieved 2019-10-01
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