Evidence of recent overtopping

108m from estuary to top of berm

Assisted by John Slykhuis

Very Low Tide

Data sheet dropped in water and dried out

Assisted by John Slykhuis

Assisted by John (need to sign him up)

Evidence of recent small overtopping of Berm.

Seaweed across area between sea and river. foam at seaward end of estuary

Assisted by John S

Lots of white sediment near end of Estuary

Apologies for untidy photos

Assisted by John S

Meter board at GOR Bridge reads 75mm lower than WMIS tag 235278

See photo attached

Foam at Bridge

Assisted by John

White powder (precipitate) on bottom around river mouth

Photo of Level board for comparison with WMIS reading

Assisted by John

Kids have dug a 20m trench towards sea.

Light dusting of white deposit on bottom just upstream of Estuary mouth

• Tide predictions taken from Lorne.
• Water level taken from the GOR bridge. 

White Foam Edge of River SE Corner

• The channel of water flowing out to sea has narrowed since the data collected on Monday August 25.
• Clumps of seaweed were seen in the channel that has been excavated.  This indicates that sea water is pushing up into the lower part of the estuary at high tide.
• Strong winds were blowing sand across the berm while this data sheet was being completed.
• pacific and kelp gulls were seen feeding on dead fish at the river mouth. 
• a lot of the dead fish seem to have been removed by birds.  There was a small bodied fish that looked to have recently died.  It was identified as a Bridled Goby.   This is the first time during the acid flush event that this species has been found dead at the river mouth.  

• tide predictions are for Lorne. 

• 7 caspian terns at the river mouth.
• See corresponding event entry for more information. 
• tide predictions are for Lorne

• tide times and height predictions are for Lorne. 
• estuary was artificially opened to the sea by GORCAPA on the 20/08/2025 at the request of Corangamite CMA in an attempt to improve water quality in the estuary.
• the deepest part of the drainage channel where the river intercepts the sea was 20-30cm of water. 
• silver gulls, caspian terns and pacific gulls were seen feeding on the dead fish at the river mouth. 
• white flocculant could be seen around the edges of the water line . 
• there was signs of estuary water and sea water mixing where the two water bodies intercept each other. 

Digger on site had begun digging to open channel, but were stopped at about 9.30 to wait for optimum tidal conditions

Assisted by John Slykhuis

Distance from Top of berm to Estuary water  81m

Kids have attempted a channel

170m from Berm top to estuary

GOR Bridge Gauge board needs clean or replacing

Can't move photos properly

Clear evidence of recent berm overtopping

160m from estuary to top of berm

AHD scale at Bridge difficult to read accurately

Level Gauge at GOR bridge unreadable due to fouling  See photo

Wind blown sand on berm due to strong SE Winds during previous week

Assisted by John Slykhuis and Tarryn O'Leary

Level scale at Bridge impossible to read accurately

Electronic indicator read 1.06m AHD at 09:30

150m from estuary to top of berm

Level board at GOR bridge has been cleaned

Wind has blown dry sand over damp base at river mouth.  Two photos attached showing sand drifts over the damp sand.