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GMC Gellibrand River Estuary Mouth Observation Site

15 May 2015

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #9616
Date and Time Friday 15th May 2015 10:30am
Approved Approved

Notes

  • Strong flow straight out to sea & also to east
  • Water being drawn out of estuary causing large waves to go upstream along channel (channel has steep sides -to .70m. high) , these waves start near the tunnel entrance in an area that has a large shallow water covered sand build up
  • Water extremely turbid, sand swirls everywhere & long 'drag' lines are across sand where water has been drawn off
  • Mouth wide, rough seas causing waves to surge over top of rocks
  • East end of beach still being impacted by SW waves which have created a sheer sand cliff about 1-2m. high
  • Very strong longshore drift & rip
  • Strong flow downstream at G2 but waves also coming upstream toward bridge
  • All areas remain flooded. OOR .80m. near flood markers @ 08:45
    • channel near boardwalk (also over boardwalk) where algae is starting to form
  • Several Portuguese Man o' war along swash line on beach
  • 2 large tiger snakes near G2 bridge

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 South
Beaufort Scale Moderate breeze
Sea State Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 1.86m 1.86m
Time (hh:mm) 10:30 12:20
Tidal influence No
Tidal Range Time Height
High 12:14 0.860
Low 04:53 0.580

Observation Documents

Link Date File name Description
15-05-2015 10:30 Photopoint Gp1_1
15-05-2015 10:30 Photopoint Gp1_2
15-05-2015 10:30 Photopoint Gp1_3
15-05-2015 10:30 Photopoint Gp1_4
15-05-2015 10:30 Photopoint Gp1_5
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