Riosequillo reservoir

Madrid · Comunidad de Madrid

Tajo basin Reservoirs in Comunidad de Madrid

Province: Madrid
Basin: Tajo
River: Lozoya
Dam: Gravity · 1956

60.0%

Current level

30 hm³

Stored water

50 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 Riosequillo reservoir (embalse de Riosequillo), in the Tajo basin and linked to Buitrago del Lozoya, Madrid and Comunidad de Madrid, is at 60.0% of its capacity, holding 30 hm³ against a maximum capacity of 50 hm³. It is currently steady in the latest update.

Compared with 2025: below (-18.0 points). Compared with the recent historical mean: below (-7.2 points).

Its main uses include water supply and hydroelectric power.

References
Reference	Level	Difference
Previous week	60.0%	0.0 pts
Same week 2025	78.0%	-18.0 pts
10-year mean	67.2%	-7.2 pts

Technical data

Characteristics of the dam and its recorded uses.

Characteristics

Municipality: Buitrago del Lozoya
River: Lozoya
Dam type: Gravity
Year built: 1956
Surface area: 326 ha
Upstream: Pinilla
Downstream: Puentes Viejas

Recorded uses

Water supply
Electricity
Industrial
Fishing
Boating
Swimming
Restaurants

Not recorded: irrigation, picnic.

Source: MITECO Inventory of Dams and Reservoirs.

Data: MITECO · AEMET