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Experiences with Asphalt Concrete Sealings at Drinking Water Dams for more than 50 Years
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Experiences with Asphalt Concrete Sealings at Drinking Water Dams for more than 50 Years

On June 27 2003 Aggerverband celebrates 50 years of operation of Genkel Dam, a 44 m meter high rockfill dam with an upstream asphalt concrete lining. Genkel Dam was one of the first German drinking water dams with asphalt concrete as a water barrier. Several dams followed in Germany like Wahnbach Dam and Perlenbach Dam. Later on the technical development lead to rockfill dams with cores of asphalt concrete. The Wiehl Dam was the first one for drinking water supply. Again other dams followed like Große Dhünn Dam.

Up to date there are 22 drinking water reservoirs with asphalt concrete sealings under operation in Germany. They proved to be very reliable structures with no maintenance when constructed as core sealing and little maintenance when constructed as upstream facings.

The water quality is solely depending on the influent water to the reservoir. There has neither been influence of the asphalt concrete nor of the mastic on the water quality. No diseases attributable to asphalt concrete have been observed during all the years of operation. In any case, asphalt concrete is without effects on water quality.

Dams with Asphalt Sealings for Drinking Water Reservoirs in Germany

Name

 Year of Completion Reservoir Capacity C = core

L = lining		 Height of Dam

Breitenbach

 1956 7800 C 42

Carlsfeld

 1930 3040 L 32

Deesbach

 1990 3480 L 45

Genkel

 1952 8200 L 44

Grane

 1969 46390 L 67

Grosse Dhünn

 1987 80300 C 63

Innerste

 1966 20000 L 40

Kleine Kinzig

 1984 13300 C 71

Lichtenberg

 1975 14450 L 46

Mauthaus II

 1972 700 C 17

Neustadt

 1905 1240 L 33

Nonnenweiler

 1982 19800 L 61

Obernau

 1972 14900 L 60

Ohra

 1967 18730 L 59

Perlenbach

 1956 800 L 21

Riveris

 1958 4645 L 45

Schmalwasser

 1997 20550 C 81

Schönbrunn

 1975 23220 L 67

Steinbach

 1965 4825 L 39

Wahnbach

 1958 40710 L 53

Wehebach

 1981 25060 L 49

Wiehl

 1974 31500 C 53

[ Zuletzt geändert: 12.01.2004 ]
  
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