Floodway · New South Wales · Nepean River

Nepean River at Menangle

Last reading · updated no data212904

— m

Peak watch · this gauge’s own reading is not recent enough to compare upstream against.

River height at Menangle

Nepean River at Menangle has no recent reading.

Level—

Trend—

vs normalno recent baseline

River system

Nepean River →

26 Oct – 2 Nov14 not reportingDot colour is the gauge’s last known flood class — never depth. Hover a gauge for its reading age.

Level history

Upstream

Hover the chart to read any past height.

Questions about this gauge

Where is the Menangle river gauge?: It is gauge 212904 on the Nepean River, at Menangle, New South Wales. Floodway shows its readings; it does not own or maintain the gauge.
What are the flood levels at Menangle?: The Bureau of Meteorology publishes minor at 5.20 m, moderate at 9.20 m, major at 12.20 m for Nepean River at Menangle. These are the Bureau’s own classes for this gauge, and what they mean on the ground is described in the glossary.

Floodway is decision support, not an official warning service. For warnings, see the Bureau of Meteorology. What the flood classes mean →

About this gauge

Nepean at Menangle (gauge 212904) measures the Nepean River in New South Wales. The next verified gauge upstream is Menangle Weir. Downstream, the next verified gauge is Camden Weir. More gauges on this river are known but awaiting verification, and travel-time estimates will appear once reach calibration has been reviewed.

Floodway shows levels from the Bureau of Meteorology’s national water data service, compared against the Bureau’s flood classifications for this location. During events, always follow official BoM flood warnings and VicSES advice.

Flood class	Gauge height
Minor	5.20 m
Moderate	9.20 m
Major	12.20 m

Flood-class provenance: BoM HCS_Metadata_Water_Level.csv (Rainfall and River Height Data — HCS Files, user guide v2.1, effective 2026-05-07), retrieved 2026-09-01, https://reg.bom.gov.au/catalogue/HCS_Metadata_Water_Level.csv

Heights at this gauge are local gauge height (LGH) — gauge zero sits at 58.123 m. Local gauge height is measured from a datum set at this site, so a reading here is not directly comparable with one at another gauge. Drainage basin: HAWKESBURY RIVER.

Named floods

Peaks are computed from the readings stored for this gauge over each named event window — verify against official records before relying on them (docs/VERIFICATION.md §5).

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Questions about this gauge

Where is the Menangle river gauge?

It is gauge 212904 on the Nepean River, at Menangle, New South Wales. Floodway shows its readings; it does not own or maintain the gauge.

What are the flood levels at Menangle?

The Bureau of Meteorology publishes minor at 5.20 m, moderate at 9.20 m, major at 12.20 m for Nepean River at Menangle. These are the Bureau’s own classes for this gauge, and what they mean on the ground is described in the glossary.

Floodway is decision support, not an official warning service. For warnings, see the Bureau of Meteorology. What the flood classes mean →

About this gauge

Flood class

Gauge height

Minor

5.20 m

Moderate

9.20 m

Major

12.20 m