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Observation details


Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12901
Date and Time Friday 3rd May 2019 10:45am
Approved Pending


AHD G6 1.42 @ 08:40

Shallow outflow opening wide over sand build up at entrance - very large amount of sand visible under water in estuary extending past tunnel entrance. sea moderate but some high sets breaking on sandbar about 50m. out & going very high up on beach. Occasional small waves from longshore drift & incoming sw swell going part way up channel to where it narrows down to about 2m.wide. Waves are going over top of high sand build up at mid beach (formerly a narrow projection but now extending towards east end of beach) where water then runs east along an area on top of high sand to slightly lower area where abruptly turning towards ocean it scours out narrow N/S channel - very large amount of sand visible in outflow & back wash in ocean at that area

Water level in downstream of G2 is high, water over top track & nearly up to ocean car park. No water on any roads but at side of OOR between flood markers & GOR. Flats south side of G4 & downstream have visible water cover - further upstream water from runoff (about 30 ml. on 01-05-19) is only in very low areas & drains

Mouth Observation

Mouth state Open
Previous O C O O O O O O O O O O O O O O O O O O O O O C O O O O C O O O O O O C C C C C C C C O O O C C C C C O P C C C O O O O O O O O O C
Flow Present? Yes
Previous Y N Y Y Y Y Y Y Y Y Y Y Y N Y Y Y Y Y Y Y Y Y N Y Y Y Y N Y Y Y Y Y Y N N N N N N N N Y Y Y N N N N N Y N N N N Y Y Y Y Y Y Y Y Y N
Flow Direction Out
Previous O N O I O O O I O O I O O N O I O O O O O O O N O O O O N O O O O O I N N N N N N N N O O O N N N N N I N N N N O O O O I O I I I N
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) 1.39m 1.39m
Time (hh:mm) 10:45 13:52
Tidal influence Yes
Tidal Range Time Height
High 12:48 0.870
Low 06:17 0.420

Observation Documents

Link Date File name Description

05-05-2019 13:35 Gp1_20190503_1_212_0635.JPG

05-05-2019 13:35 Gp1_20190503_2_252_0636.JPG

05-05-2019 13:35 Gp1_20190503_3_292_0637.JPG

05-05-2019 13:35 Gp1_20190503_4_332_0638.JPG

05-05-2019 13:35 Gp1_20190503_5_372_0639.JPG
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