Agrio (Aznalcollar) reservoir

Sevilla · Andalucía

Guadalquivir basin Reservoirs in Andalucía

Province: Sevilla
Basin: Guadalquivir
River: Agrio
Dam: Embankment, asphalt face · 1977

75.0%

Current level

15 hm³

Stored water

20 hm³

Total capacity

-1.0 hm³

Weekly change

+7.0 hm³

Vs. 2025

+6.8 hm³

Vs. 10-year mean

Historical trend

Stored water volume · hm³

hm³

Weekly summary

The Agrio (Aznalcollar) reservoir (embalse de Agrio (Aznalcollar)), in the Guadalquivir basin and linked to Aznalcóllar, Sevilla and Andalucía, is at 75.0% of its capacity, holding 15 hm³ against a maximum capacity of 20 hm³. It is currently falling, by 1.0 hm³ this week.

Compared with 2025: above (+35.0 points). Compared with the recent historical mean: above (+34.0 points).

Its main uses include irrigation.

References
Reference	Level	Difference
Previous week	80.0%	-5.0 pts
Same week 2025	40.0%	+35.0 pts
10-year mean	41.0%	+34.0 pts

Technical data

Characteristics of the dam and its recorded uses.

Characteristics

Municipality: Aznalcóllar
River: Agrio
Dam type: Embankment, asphalt face
Year built: 1977
Surface area: 278 ha
Upstream: — no data
Downstream: No

Recorded uses

Irrigation
Fishing

Not recorded: water supply, electricity, industrial, boating, swimming, picnic, restaurants.

Source: MITECO Inventory of Dams and Reservoirs.

Data: MITECO · AEMET