Búbal reservoir

Huesca · Aragón

Ebro basin Reservoirs in Aragón

Province: Huesca
Basin: Ebro
River: Gállego
Dam: Gravity · 1971

7.9%

Current level

5 hm³

Stored water

63 hm³

Total capacity

0.0 hm³

Weekly change

+2.0 hm³

Vs. 2025

-4.3 hm³

Vs. 10-year mean

Historical trend

Stored water volume · hm³

hm³

Weekly summary

The Búbal reservoir (embalse de Búbal), in the Ebro basin and linked to Hoz de Jaca, Biescas, Huesca and Aragón, is at 7.9% of its capacity, holding 5 hm³ against a maximum capacity of 63 hm³. It is currently steady in the latest update.

Compared with 2025: above (+3.2 points). Compared with the recent historical mean: below (-6.8 points).

Its main uses include water supply and hydroelectric power.

References
Reference	Level	Difference
Previous week	7.9%	0.0 pts
Same week 2025	4.8%	+3.2 pts
10-year mean	14.7%	-6.8 pts

Technical data

Characteristics of the dam and its recorded uses.

Characteristics

Municipality: Hoz de Jaca, Biescas
River: Gállego
Dam type: Gravity
Year built: 1971
Surface area: 312 ha
Upstream: Lanuza
Downstream: La peña

Recorded uses

Water supply
Electricity
Fishing

Not recorded: irrigation, industrial, boating, swimming, picnic, restaurants.

Source: MITECO Inventory of Dams and Reservoirs.

Data: MITECO · AEMET