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.

Little fingerlings in Estuary <1cm

Wet sand on sea side to top of berm

Estuary level gauge at GOR bridge not readable, level estimated

Top of Berm was 144m from nearest Estuary water.  76m from top of Berm to sea. (low tide)

Clear evidence on beach of Berm being overtopped by sea the previous night.  Wet sand and seaweed.

Note Level Board at Ocean Road Bridge was fouled and unreadable, 1.2m is the best estimate

Berm length from River to top of berm = 146m

Berm Height 1.24+0.9 = 2.14 mAHD

Bridge Marker badly fouled.  Impossible to read accurately.

1.09m is best estimate.

Distance from Estuary to top of berm is 140m

Possible recent minor overtopping from sea

Estuary to top of Berm 135m

Top of Berm to Sea  31m

110m from Estuary to top of berm.

Berm Height 1.23 + 0.9 = 2.13m AHD

Evidence of recent berm overtopping

Williweather tides

Berm Height above sea difficult to measure accurately