Maidevera

As of September 7, 2026, Maidevera is filled to 75.0% of its total capacity, holding roughly 15 hm³ of water out of a maximum 20 hm³. At this level the reservoir is within its normal operating range. Of that total, about 18 hm³ is usable (live) storage.

Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 15.0 points above its level on the same date a year earlier.

Across the readings we hold for Maidevera — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 20.0% (September 5, 2023) to a high of 100.0% (June 23, 2020). On average the reservoir is fullest around June and at its lowest around October.

It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 41.579°N, 1.763°W.