Embalse de Mansilla
| Mansilla reservoir | |||||
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| Coordinates | 42 ° 9 '29 " N , 2 ° 54' 42" W | ||||
| Data on the structure | |||||
| Construction time: | 1958-1959 | ||||
| Height of the barrier structure : | 80 m | ||||
| Height above foundation level : | 852 m | ||||
| Height of the structure crown: | 932 m | ||||
| Crown length: | 209 m | ||||
| Operator: | CHE | ||||
| Data on the reservoir | |||||
| Water surface | 2.46 km² | ||||
| Reservoir length | 3.5 km | ||||
| Reservoir width | 300 m | ||||
| Storage space | 680,000 m³ | ||||
| Catchment area | 290 km² | ||||
The Mansilla Reservoir (Spanish Embalse de Mansilla ) is one of the smaller reservoirs in northern Spain . It is mainly fed by the Río Najerilla , Río Gatón, Río Cambrones and Río Portilla and their tributaries, all of which belong to the catchment area ( cuenca ) of the Ebro .
location
The Mediano reservoir is located in the Comarca Anguiano in the autonomous community of La Rioja at an altitude of about 920 meters above sea level. d. At a maximum width of about 400 meters, it extends south of the newly built village of Mansilla de la Sierra for about 3.5 kilometers in a west-east direction.
history
Already in the times of the Second Spanish Republic there were concrete plans to build a reservoir on the upper reaches of the Río Najerilla, but a little further north and thus a little deeper and in this way to prevent the sinking of the town of Mansilla. Work began in 1935, but was stopped due to the Spanish Civil War . Under the Franco dictatorship in the mid-1950s, the surveying and planning work for a somewhat higher reservoir began, the wall of which was completed in 1959. The project's planners were aware that the small town of Mansilla de la Sierra would disappear in the floods, so a new settlement was built a little higher up, but only about 150 residents (from about 550 in 1950) moved to it - most of them migrated in other places or in the larger cities. One of the two bridges in the old town from the 16th century was dismantled stone by stone and rebuilt as a 'monument' in the new town. While the late Gothic parish church went under, a Romanesque hermit church ( Ermita de Santa Catalina ) above the old village was preserved. Every year in September / October the water level of the lake sinks to low values, so that the ruins of the old place emerge from the water again.
business
The operator of the dam is the Confederación Hidrográfica del Ebro (CHE) . Several turbines for generating electricity are built into the dam; There is a substation east of the 80 meter high dam . No data is available on the amounts of energy generated.
