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  5. 19-06-2026

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G4 Bridge at Rivernook

19 June 2026

Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #17616
Date and Time Friday 19th June 2026 10:52am
Approved Approved

Notes

A lot of drag while measuring - heavy wait attached but still dragging due to strong river flow

Unable to collect bottom depth sample due to strong flow

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 12.20 0.20 8.10 76.3 0.33
Previous 13.2 0.2 8.9 83.7 0.3
Median 14.2 0.30 8.41 81.80 0.3
0.5m 12.10 0.20 8.07 75.9 0.33
Previous 14.2 0.2 8.1 78.1 0.3
Median 14.3 0.30 8.41 81.80 0.3
1.0m 12.20 0.20 8.06 75.8 0.33
Previous 12.5 0.2 9.0 84.1 0.3
Median 14.2 0.30 8.19 81.50 0.3
1.5m 12.20 0.20 8.05 75.8 0.33
Previous 14.1 0.2 8.1 77.9 0.3
Median 14.2 0.30 8.19 81.50 0.3
2.0m 12.20 0.20 8.03 75.6 0.33
Previous 12.1 0.2 9.1 84.3 0.3
Median 14.2 0.30 8.17 81.30 0.3
2.5m 12.20 0.20 8.03 75.6 0.33
Previous 14.1 0.2 8.1 77.8 0.3
Median 14.2 0.30 8.17 81.30 0.3
3.0m 12.10 0.20 8.02 75.5 0.33
Previous 12.0 0.2 9.2 84.2 0.3
Median 14.7 0.50 7.89 79.30 0.4
3.5m 12.10 0.20 8.01 75.4 0.33
Previous 14.1 0.2 8.0 77.6 0.3
Median 14.9 0.50 7.89 79.30 0.4
4.0m 12.20 0.20 8.01 75.4 0.33
Previous 12.0 0.2 9.1 84.0 0.3
Median 15.0 22.80 7.44 78.50 0.4
4.5m 12.20 0.20 8.00 75.4 0.33
Previous 14.1 0.2 8.0 77.5 0.3
Median 15.3 22.80 7.44 78.50 0.4
5.0m 12.20 0.20 8.00 75.3 0.33
Previous 12.0 0.2 9.1 83.9 0.3
Median 14.4 22.80 8.02 77.50 0.6
5.5m 12.20 0.20 7.99 75.3 0.33
Previous 14.1 0.2 8.0 77.5 0.3
Median 14.4 26.00 7.28 77.30 0.6

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 40 5.6
Previous 0.1 12 6.6
Median 0.1 10 6.8
Bottom 5.7
Previous 3.5 11 6.8
Median 5.0 10 6.9

Other details

Max depth 5.75
Previous 5.10
Median 5.15
Flow estimate Fast

Observation Documents

Link Date File name Description

Download 		26-06-2026 11:46 IMG_2772.jpeg gp1_4

Download 		26-06-2026 11:46 IMG_2776.jpeg gp1_4

Download 		26-06-2026 11:46 IMG_2775.jpeg gp1_4

Download 		26-06-2026 11:46 IMG_2774.jpeg gp1_4

Download 		26-06-2026 11:46 IMG_2773.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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