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  4. 01-08-2009

G6 Great Ocean Road Bridge at Lower Gellibrand

1 August 2009

Overview Notes Depth Profile Top-Bottom Documents 0 Chart
Observation details

Overview

Estuary Gellibrand River Estuary
Site Great Ocean Road Bridge at Lower Gellibrand
Observation ID #2249
Date and Time Saturday 1st August 2009 12:20pm
Approved Approved

Notes

1. flow causing probe to drift toward snags
2. AHD.- 2.04
3. Water height at G4 has just reached bridge bearer. Water over bank at Coe's and Duynhoven's.
All properties between Rowans Gully and G4 flooded. No flooding downstream from G4. Water in low areas between Rowans Gully and G6

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 10.60 0.20 8.58 78.0
Previous 8.8 0.2 9.4 81.1
Median 13.5 0.10 7.61 71.80
0.5m 10.40 0.20 8.62 77.2
Previous 8.7 0.1 8.9 76.8
Median 13.6 0.10 7.61 71.80
1.0m 10.40 0.20 8.65 77.3 probe drifting
Previous 8.7 0.2 9.4 80.7
Median 13.4 0.10 7.75 71.40
1.5m 10.40 0.20 8.57 76.7
Previous 8.6 0.1 8.8 75.2
Median 13.6 0.10 7.75 71.40
2.0m 10.40 0.20 8.47 75.8
Previous 8.7 0.2 9.4 80.5
Median 13.2 0.10 7.65 72.70
2.5m 10.40 0.20 8.46 75.7
Previous 8.6 0.2 8.8 75.8
Median 13.4 0.10 7.65 72.70
3.0m 10.40 0.20 8.46 75.5 drift over 5 m.
Previous 8.7 0.2 9.2 78.7
Median 8.9 0.20 8.75 75.20
3.5m not taken because of drift / strong flow
Previous 8.6 0.1 8.8 75.2
Median 9.1 0.20 8.75 75.20
3.9m
Previous 8.5 0.2 8.3 71.2
Median 9.1 0.20 8.31 73.00

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 80
Previous 0.1 30
Median 0.1 20
Bottom 2.0 60
Previous 2.5 30
Median 2.5 30

Other details

Max depth 3.98
Previous 3.23
Median 2.40
Flow estimate Fast

Observation Documents

No documents found for this observation

Preceding Observations

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