The Alavés de Ullibarri reservoir, which supplies Bilbao and Vitoria, has increased its water discharge by the dam to the river Zadorra After the last rains of yesterday Friday. According to the data of the Ebro Hydrographic Confederation, the reservoir had been with a spill of 5 meters per second -the minimum.
This Friday at six in the afternoon raised it to 10 meters per secondto relieve the dam before the strong rainfall fallen yesterday. This Saturday follows the unbecue with 9.3 meters per second, an amount that is not yet worrisome in order to cause floods.
Safely
In fact, the level of the Zadorra river in Mendibil has risen Only at 1.03 cubic meters per second, less than half of the flow that would activate the yellow alert level, which is more than 2 meters. The Zadorra reservoir system management protocol that starts the unbalanced when the water sheet reaches the high level -545 meters above sea level- to be able to open the spillway. It is now 545.6 meters, so the unbecue has been slightly increased.
The prey of Ullibarri. DNA
Ullibarri is currently at 90.7 % of its total capacity, with 133 water hectometersaccording to the data of the Ebro Hydrographic Confederation. The twin reservoir of Urrunaga is lower, at 79 % of its capacity, with 56 hectometerssince it has poured more because its water is exploited by Iberdrola to turbine and generate electricity.
Supply facing summer
This water is made to the Arratia basin -the north, waters that go to the Cantabrian. With this high level, the water supply to Bilbao and Vitoria is guaranteed for the whole summer, although it does not rain in the coming months.
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