Granadillar
| Granadillar El Toscón |
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| Coordinates | 28 ° 5 '3 " N , 15 ° 30' 10" W | ||||
| Data on the structure | |||||
| Lock type: | Gravity dam | ||||
| Construction time: | 1930 | ||||
| Height of the barrier structure : | 22 m | ||||
| Crown length: | 170 m | ||||
| Data on the reservoir | |||||
| Storage space | 110 300 m³ | ||||
The Granadillar dam was built in 1930 near El Toscon on the Spanish island of Gran Canaria in a narrow gorge (Barranco del Toscon). The structure was a 22 m high and 170 m long gravity dam made of masonry. The reservoir contained 110,300 m³ of water.
catastrophe
On February 21, 1934, the dam suddenly broke when the reservoir was first filled. A bridge was destroyed, houses and banana fields were devastated in Teror. Eight people died in the tidal wave . The accident became known as the "El Toscón accident".
An inadequate wall cross-section is cited as the reasons for the failure in the specialist literature. (Failure of dam due to inadequate cross section.)
The building was abandoned. Today the ruins can still be seen. A small lake has formed behind the remains of the dam.
See also
swell
- ↑ Damage to European dams ( memento of the original from December 18, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ KJ DOUGLAS, M SPANNAGLE and R FELL, ANALYSIS OF CONCRETE AND MASONRY DAM INCIDENTS, THE UNIVERSITY OF NEW SOUTH WALES 1998
literature
- Gomez Laa, G., Alonso Franco, M. and Hernandez, JLR: Reflections on some incidents in Spanish dams. In: Thirteenth International Congress on Large Dams, New Delhi, ICOLD. Vol. Q49 pp. 721-740, 1979
- Deterioration of Dams and Reservoirs, ICOLD, Paris, 1984
- Berga, L., Failures and hydrological incidents of dams in Spain. In: Dix-neuvième Congrès des Grands Barrages, Florence, ICOLD, Vol. Q75 pp. 417-430, 1997