Straubing barrage

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The Straubing barrage is a barrage of the Danube at river kilometer 2322.02 in the urban area of ​​the independent city of Straubing in Lower Bavaria . It consists of a weir with a boat lane, the Straubing run-of-river power station and the Straubing lock . The so-called west bypass , the SRs 48 district road, runs over the barrage on the Kagerser Bridge .

Course of the Danube in Straubing

The mean discharge here is 460 m³ / s, the flood discharge about 4000 m³ / s.

construction

The Danube branches off at the Straubing barrage. The power plant and weir are on the right-hand side of the Danube and lead into the southern arm of the Danube, also known as the weir arm. On the left is the Straubing lock, whose underwater is the Old Danube (Straubing) . Between the underwater of the weir and the underwater lock there is an 800 meter long dam, the new Beschlacht , from the barrage to the Danube island of Gstütt . At higher water flows of around 700 m 3 per second, it is overflowed in the direction of the Old Danube so that the flow conditions in the Straubinger Loop are not fundamentally changed by the construction of the barrage. The storage space of the Straubing barrage extends over 25 kilometers to the Geisling power plant . The dam at the Straubing weir is about three meters above the site, which is why a total of 33 kilometers of side dams were built and continued as flood dikes in the upper area of ​​the dam.

Weir

Weir with lowered caps is overflowing

Five fields with a clear width of 24 meters each form the weir system between the lock on the left and the power plant on the right. The locks are pull segments with an attached cap with a lock height of 9.30 meters including freeboard. The sole of the weir system is 311.2  m above sea level. NN , congestion destination for normal congestion is 320  m above sea level. NN , maximum accumulation is 320.3  m above sea level. NN . To the left of the weir there is a boat lane with a passage width of 2.3 meters.

power plant

Engine house from underwater

The Straubing run-of-river power plant is designed for an expansion water volume of 501 m 3 / s and a nominal output of 21.5  MW and, with its three Kaplan turbines, has an average annual working capacity of 145 million kilowatt hours . The mean height of fall is about 5.3 m.
See also: Straubing run-of-river power plant

lock

Lock chamber

The Straubing lock is a single lock with a usable length of 230 m and a usable width of 24 m. It is closed by a mortise gate at the top and bottom and has an average fall height of 6.21 m. It is operated remotely from the WSV control center in Regensburg .

See also: Straubing lock

bridge

Kagerser Bridge

The Kagerser Brücke bridge, with a total structure length of 542.5 meters, a bridge width of 15.75 meters and a roadway width of 8.5 meters, leads the KrSRs48 district road over the Danube. It consists of the three parts of the lock bridge , weir and power station bridge and Laber bridge . It was opened to traffic on August 7, 1992.

See also: Kagerser Bridge

history

In a contract between the Federal Republic and Bavaria of September 16, 1966, also known as the Duisburg Treaty , the regulation of the congestion of the Danube below Regensburg was decided, mainly to counteract further deepening and also to widen the shipping channel in the area around Straubing at that time was only between 40 and 60 meters. The completion date was given in 1981. In the Danube Canalization Agreement of 1976, Rhein-Main-Donau AG was commissioned with the implementation. The standard fairway width was set at 100 meters and for the fairway depth 2.80 meters as the expansion principle. For the section between Regensburg and Straubing, a 2-barrage solution with one barrage in Geisling and one in Straubing was developed. The specific choice of location near Kagers made it possible to relocate the fairway into the Old Danube without increasing the water level in the Straubing Danube loop. The planning completed in 1978 was backed up in parallel by model studies by the Obernach research institute . The summer 1985 was planned as the completion date. Construction of the barrage began in 1979 at the lock, but in autumn 1981 construction work was almost completely stopped due to changes in funding commitments by politicians. In the spring of 1983 the decision to continue building was made and construction work on the lock and the outer harbors was quickly resumed. Completion of the lock and the removal of the Bschlacht took place in 1984. The lock bridge was started in 1983. The Kagerser Bridge was handed over to traffic on August 7, 1992. The power plant was completed in 1994 and went online in 1995 after trial operation. The puncture of Öberauer Danube Bend, in the autumn of 1994. The completion of the barrage Straubing carried 1995th

literature

  • Wolfgang Bach, Hans Vicari: Straubing Danube bridges . Verlag Attenkofer, Straubing 1994, ISBN 3-9802955-6-7 .

Individual evidence

  1. ↑ a b data and facts. Technical parameters. (No longer available online.) Federal Waterways and Shipping Administration , archived from the original on November 29, 2014 ; Retrieved October 8, 2013 .
  2. ↑ Water levels at levels relevant to shipping. PFATTER level. (No longer available online.) Federal Waterways and Shipping Administration, archived from the original on October 21, 2014 ; accessed on February 8, 2015 : “Gauge zero point: 317.02 m; Damming destination I of a barrage (normal damming): 298 cm "
  3. ^ R. Rutschmann, Marius Asenkerschbaumer, Daniel Skublics: Delay and estimation of flood waves along the Bavarian Danube. (PDF; 39.9 MB) Final report 2012. Oskar-von-Miller-Institut, 2012, p. 120 , accessed on February 25, 2015 .
  4. ↑ Power plant list of the Federal Network Agency. (xlsx; 323 kB) October 29, 2014, accessed on January 17, 2015 .
  5. ↑ List of power plants. (No longer available online.) Rhein-Main-Donau AG , archived from the original on October 12, 2013 ; Retrieved December 8, 2013 .
  6. ^ Federal waterway Danube, ..., environmental impact study. (PDF; 11.7 MB) Planning approval .. (No longer available online.) Federal Waterways and Shipping Administration , August 1, 2014, archived from the original on February 21, 2015 ; accessed on February 21, 2015 : "+314.77 (Unterpegel Straubing)"
  7. ↑ a b Information board on the site of the barrage, viewed on October 13, 2013
  8. ↑ Contract ... on the expansion of the Rhine-Main-Danube large shipping route between Nuremberg and Vilshofen (Passau). (PDF; 0.1 MB) Federal Waterways and Shipping Administration , September 16, 1966, accessed on February 25, 2015 .
  9. ^ Contract ... on the canalization of the Danube from Regensburg to Vilshofen (Danube Canalization Contract). (PDF; 0.1 MB) Federal Waterways and Shipping Administration , August 11, 1976, accessed on February 25, 2015 .
  10. ↑ RMD, Straubing barrage ( Memento from April 2, 2015 in the Internet Archive )

Coordinates: 48 ° 53 '50.6 "  N , 12 ° 33'23.8"  E