Steenbras-Lower Dam

As of August 31, 2026, Steenbras-Lower Dam is filled to 51.3% of its total capacity, holding roughly 17 Mm³ of water out of a maximum 34 Mm³. At this level the reservoir is within its normal operating range.

Over the most recent week on record the fill level has risen by 1.7 percentage points.

Across the readings we hold for Steenbras-Lower Dam — 15 data points between May 31, 2026 and August 31, 2026 — the level has ranged from a low of 47.0% (June 29, 2026) to a high of 54.2% (July 6, 2026).

The dam at Steenbras-Lower Dam stands 53 m tall and is a gravity dam and was completed in 1921. It is operated by City of Cape Town primarily for water supply. It lies within the Berg-Breede basin at 34.183°S, 18.867°E.