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G4 Bridge at Rivernook

17 December 2025

Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #17356
Date and Time Wednesday 17th December 2025 10:30am
Approved Approved

Notes

Unable to measure depth below 4m due to shorter length of leeds following service - await longer leeds

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 16.60 0.20 7.76 80.0 0.24
Previous 14.4 0.3 8.9 87.6 0.3
Median 14.1 0.30 8.58 83.60 0.3
0.5m 16.30 0.20 7.79 79.7 0.24
Previous 9.5 0.3 11.5 106.6 0.4
Median 14.0 0.30 8.48 83.00 0.3
1.0m 16.30 0.20 7.81 79.6 0.24
Previous 14.4 0.3 8.8 86.5 0.3
Median 14.1 0.30 8.46 83.30 0.3
1.5m 16.20 0.20 7.82 79.6 0.24
Previous 9.5 0.3 11.5 106.4 0.4
Median 13.9 0.30 8.42 83.00 0.3
2.0m 16.20 0.20 7.81 79.5 0.24
Previous 14.4 0.3 8.8 86.0 0.3
Median 14.2 0.30 8.44 83.10 0.3
2.5m 16.20 0.20 7.81 79.4 0.24
Previous 9.5 0.3 11.5 106.3 0.4
Median 13.9 0.30 8.40 82.60 0.3
3.0m 16.20 0.20 7.81 79.4 0.24
Previous 14.5 0.3 8.7 85.7 0.3
Median 14.5 0.30 8.16 81.30 0.4
3.5m 16.20 0.20 7.81 79.3 0.24
Previous 9.5 0.3 11.5 106.1 0.4
Median 14.4 0.50 8.16 80.20 0.4
4.0m 16.10 0.20 7.81 79.3 0.24
Previous 14.5 0.3 8.7 84.7 0.3
Median 14.7 0.30 7.70 79.20 0.4

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 19 6.8
Previous 0.1 24 6.8
Median 0.1 11 6.8
Bottom 4.8 21 6.9
Previous 5.3 30 6.8
Median 5.0 11 7.0

Other details

Max depth 4.94
Previous 5.44
Median 5.15
Flow estimate Slow

Observation Documents

Link Date File name Description

Download 		14-01-2026 13:38 IMG_9322.jpeg gp1_4

Download 		14-01-2026 13:38 IMG_9323.jpeg gp1_4

Download 		14-01-2026 13:38 IMG_9324.jpeg gp1_4

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
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