Atance, El reservoir

Guadalajara · Castilla-La Mancha

Tajo basin Reservoirs in Castilla-La Mancha

Province: Guadalajara
Basin: Tajo
River: Salado
Dam: Roller-compacted concrete · 1997

51.4%

Current level

18 hm³

Stored water

35 hm³

Total capacity

0.0 hm³

Weekly change

-9.0 hm³

Vs. 2025

+3.6 hm³

Vs. 10-year mean

Historical trend

Stored water volume · hm³

hm³

Weekly summary

The Atance, El reservoir (embalse de Atance, El), in the Tajo basin and linked to Siguenza, Guadalajara and Castilla-La Mancha, is at 51.4% of its capacity, holding 18 hm³ against a maximum capacity of 35 hm³. It is currently steady in the latest update.

Compared with 2025: below (-25.7 points). Compared with the recent historical mean: above (+10.3 points).

Its main uses include water supply and irrigation.

References
Reference	Level	Difference
Previous week	51.4%	0.0 pts
Same week 2025	77.1%	-25.7 pts
10-year mean	41.1%	+10.3 pts

Technical data

Characteristics of the dam and its recorded uses.

Characteristics

Municipality: Siguenza
River: Salado
Dam type: Roller-compacted concrete
Year built: 1997
Surface area: 280 ha
Upstream: — no data
Downstream: Castrejón

Recorded uses

Water supply
Irrigation

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

Source: MITECO Inventory of Dams and Reservoirs.

Data: MITECO · AEMET