Urkulu reservoir

Gipuzkoa/Guipúzcoa · Euskadi

Cuencas Internas del País Vasco basin Reservoirs in Euskadi

Province: Gipuzkoa/Guipúzcoa
Basin: Cuencas Internas del País Vasco
River: Urkulu
Dam: Embankment, concrete face · 1980

80.0%

Current level

8 hm³

Stored water

10 hm³

Total capacity

0.0 hm³

Weekly change

0.0 hm³

Vs. 2025

+0.9 hm³

Vs. 10-year mean

Historical trend

Stored water volume · hm³

hm³

Weekly summary

The Urkulu reservoir (embalse de Urkulu), in the Cuencas Internas del País Vasco basin and linked to Arretxabaleta, Gipuzkoa/Guipúzcoa and Euskadi, is at 80.0% of its capacity, holding 8 hm³ against a maximum capacity of 10 hm³. It is currently steady in the latest update.

Compared with 2025: in line with that level. Compared with the recent historical mean: above (+9.0 points).

Its main uses include water supply.

References
Reference	Level	Difference
Previous week	80.0%	0.0 pts
Same week 2025	80.0%	0.0 pts
10-year mean	71.0%	+9.0 pts

Technical data

Characteristics of the dam and its recorded uses.

Characteristics

Municipality: Arretxabaleta
River: Urkulu
Dam type: Embankment, concrete face
Year built: 1980
Surface area: 80 ha
Upstream: — no data
Downstream: No

Recorded uses

Water supply

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

Source: MITECO Inventory of Dams and Reservoirs.

Data: MITECO · AEMET