Rømødæmningen

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Location of the dam between Rømø (Röm) and the Jutland mainland
On Rømødæmningen, towards the mainland

Rømødæmningen ( German Römö dam or Römdamm [rœmdam]) is an almost 9.2 km long artificial road embankment in National Park Danish Watt sea , the Danish island Romo (dt. Rom [Rom]) with the mainland in the small town Skærbæk in the Tønder municipality connects. An annual average of around 2900 cars pass the dam every day (as of 2011).

Dimensions

The dam , built between 1939 and 1948, is 9,170 meters long. The width is 60 m at the base of the dam and 13 m at the top of the dam. The height of 5.3 meters on the island of Rømø contrasts with a height of 6.3 meters on the Jutian mainland. The slope slopes between 7 ° and 14 °, which corresponds to a ratio of 1: 8 to 1: 6. About two million cubic meters of earth were used for the construction work. On the embankments there is a 50 centimeter thick layer of clay above the ground and above it the sod . There are three bays along the toll-free dam: two on the northern side in the direction of Rømø and one on the southern side in the direction of Jutland. A bicycle lane is separated from the road on both sides.

history

Before the dam was built, there was only a ferry connection between Ballum Sluse ( German  "Ballum Schleuse" ) on the mainland and Kongsmark on the east coast of the island. The idea of ​​a permanent connection between Rømø and Jutland already existed in 1860, but was abandoned because of the German-Danish War of 1864. A law on the construction of the dam was passed in 1939, after which construction work began that same year. The work, in which around 400 people were involved in the years 1940 to 1941 alone, was scheduled for four years, but was delayed due to the Second World War , so that the construction company Monberg & Thorsen was not able to complete the dam until December 1948. The dam was finally inaugurated on December 18, 1948 and the Danish coastal protection authority Kystdirektoratet has been maintaining the dam since 1949 . Originally the crest of the dam was eight meters wide, but was widened to twelve meters in 1963 to cope with the increasing traffic.

During storm surges, the water can rise to over five meters and damage the dam. This happened, for example, with the three storm surges in 1976, 1981 and 1999 when the road embankment was flooded. Parts of the road were destroyed at the time and the earth was washed away from the embankments. As a result of the damage after the storm surge in 1999, which was estimated at 27 million kroner, efforts were made to collect a fee for the use of the dam.

The geographical location and its consequences

During the planning of the dam it was decided to follow the watershed between the tidal currents of the Juvredyb (German: "Juvrer Tief") and the Lister Tief (Danish: Lister Dyb ) in the tidal basin of the Sylt-Rømø-Wadden Sea Bay. The exception was a section of the dam near the island, on which the dam runs a little further south. In the process, a sea area of ​​around five square kilometers was cut off, in which the tidal water has since had to run north, which led to a dike breach at Juvre on Rømø several times . Lahnungen are laid out on both sides of the dam to protect the bank and to reclaim new land , but these have not been maintained since 1992.

Thanks to the ferry connection between Havneby and List , the dam is an alternative for traveling to Sylt that bypasses the Hindenburgdamm .

literature

Web links

Individual evidence

  1. ↑ Årsdøgntrafik 2011 i 1000 køretøjer pr. døgn, kort 10. (PDF; 1.1 MB) (No longer available online.) Vejdirektoratet , October 30, 2012, formerly in the original ; Retrieved December 18, 2012 (Danish).  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Toter Link / vejdirektoratet.dk  
  2. ↑ Damage to the dam after the 1999 hurricane ( memento from July 8, 2012 in the web archive archive.today ) tv2.dk, accessed on March 29, 2011.
  3. ↑ Collection of parliamentary documents: Parliamentary question of February 28, 2002 , accessed on March 29, 2011.

Coordinates: 55 ° 8 ′ 47.4 "  N , 8 ° 36 ′ 43.5"  E