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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12194
Date and Time Friday 22nd June 2018 10:48am
Approved Approved

Notes

AHD G2   0.56 @ 12:25     G6  AHD  water covering AHD board

Dark discharge out around mouth & flowing strongly to east along beach front. Waves in all directions at entrance with small waves entering along channel, turning east along south side of exposed sand at south side of estuary, however strong outflow  travelling fast was further west closer to cliff face

Large area of sand exposed at south side of estuary had a sheer face about 20-40 cm.above water level which reduced near turn into channel, then rose again up to 1.50m. near entrance. The sheer sides were gradually collapsing into fast outflow & incoming small entering waves. Low water level had sandbar in estuary well exposed

No roads or tracks had water over & only a small amount from runoff in very low areas of camp ground. No water over OOR at flood markers as flood water is being held back around G4 where water is flowing strongly over the bridge. Some flooding immediately downstream G4 which was draining back into the river channel but upstream all flats have deep extensive water cover & very fast flow from G4 to past G6. Flood water peaked at Burrupa on 20-06-18 late pm at 5.06m.

Mouth Observation

Mouth state Open
Previous
Flow Present? Yes
Previous
Flow Direction Out
Previous
Above Sea Above Estuary
Berm Height (m)
Berm Length (m)

Physical Condition

Current Mode
Wind Direction North
Beaufort Scale Gentle breeze
Sea State Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 0.54m 0.56m
Time (hh:mm) 10:48 12:25
Tidal influence Yes
Tidal Range Time Height
High 16:35 0.910
Low 09:36 0.700

Observation Documents

Link Date File name Description
25-06-2018 05:40 Gp1_20180622_1_212_058.JPG gp1_1
25-06-2018 05:40 Gp1_20180622_2_252_059.JPG gp1_2
25-06-2018 05:40 Gp1_20180622_3_292_060.JPG gp1_3
25-06-2018 05:40 Gp1_20180622_4_332_061.JPG gp1_4
25-06-2018 05:40 Gp1_20180622_5_372_062.JPG gp1_5