Floodway · Queensland · Logan River

Logan River at Cedar Grove Weir HW

Last reading · updated 2 h old145030A

21.04 m

990 of 1067 gauges on BoM national feed are reporting now.

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

River height at Cedar Grove Weir HW

Logan River at Cedar Grove Weir HW last read 21.04 m at Sat, 31 Oct, 1:00 pm and has not reported since.

Level21.04 m

Trendsteady

vs normalfar above its 90-day normal

River system

Logan River →

24–31 OctNo classesHeight is each gauge against its OWN normal — the 90 days ending a month ago, so the water it is being compared with is not this event. The dotted line is that normal, the next line up its 90th percentile. Not metres, which differ by gauge. Colour is the flood class it has crossed. Dashed ring = too little record to place.

Level history

Upstream

Hover the chart to read any past height.

Road & structure heights

Full Supply20.50 m

water 0.54 m OVER this full supply · from the last reading, not now

Heights are “given as a guide only” — Bureau of Meteorology, Rainfall and River Height Data HCS user guide, Table 2. They are surveyed once and the road is not; never drive at floodwater on the strength of a number on a screen. 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

Historical peaks

When	Peak	Class

The biggest separate floods here in the last 5 years. Each row is one event's highest reading. Crests within a fortnight of each other are one flood arriving and receding, not two. Pick one to lay it over the chart.

Nearby gauges

Cedar Grove Weir TW2 h old122.88 m ▶Bromelton Weir HW2 d old41.32 m MacLeans Pump Station Weir TW2 d old5.29 m

Questions about this gauge

What is the river height at Cedar Grove Weir HW now?: Logan River at Cedar Grove Weir HW last read 21.04 m at Sat, 31 Oct, 1:00 pm and has not reported since.
Where is the Cedar Grove Weir HW river gauge?: It is gauge 145030A on the Logan River, at Cedar Grove Weir HW, Queensland. Floodway shows its readings; it does not own or maintain the gauge.
What is the highest the Logan River has been at Cedar Grove Weir HW?: The highest reading in Floodway’s record for this gauge is 26.70 m, on 10 March 2025. Earlier or larger floods may predate what this gauge has recorded.

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

About this gauge

Logan R at Cedar Grove Weir HW (gauge 145030A) measures the Logan River in Queensland. The next verified gauge upstream is Cedar Grove Weir TW. Downstream, the next verified gauge is Bromelton Weir HW. 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.

Heights at this gauge are Australian Height Datum (AHD) — gauge zero sits at 0.000 m. Drainage basin: LOGAN-ALBERT RIVERS.

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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When

Peak

Class

Questions about this gauge

What is the river height at Cedar Grove Weir HW now?

Logan River at Cedar Grove Weir HW last read 21.04 m at Sat, 31 Oct, 1:00 pm and has not reported since.

Where is the Cedar Grove Weir HW river gauge?

It is gauge 145030A on the Logan River, at Cedar Grove Weir HW, Queensland. Floodway shows its readings; it does not own or maintain the gauge.

What is the highest the Logan River has been at Cedar Grove Weir HW?

The highest reading in Floodway’s record for this gauge is 26.70 m, on 10 March 2025. Earlier or larger floods may predate what this gauge has recorded.

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

About this gauge

Heights at this gauge are Australian Height Datum (AHD) — gauge zero sits at 0.000 m. Drainage basin: LOGAN-ALBERT RIVERS.