EstuaryWatch Data Portal
|Estuary name||Barham River Estuary|
The Barham enters the sea between Apollo Bay and Marengo after meandering across a broad tidal waterway, an uncommon river style within the region. The Barham River Estuary is 2.980km in length, with a catchment area of 192.1Ha that contains several geologically significant sites.
|Monitor group||Barham EstuaryWatchers|
|Document||Barham River Estuary Fact Sheet|
The water level gauge board is located on the eastern river bank beside the Great Ocean Road bridge.
23-05-2008 - 16-02-2017
Fence corner 17th hole.
02-04-2010 - 06-12-2012
Fence corner 17th hole.
29-08-2010 - 17-02-2017
01-01-2013 - 17-02-2017
Enter via walking track from the carpark at the corner of Gambier and Trafalgar Street. Follow the track to the 6th hole of the golf course.
|03-02-2017 Estuary Entrance Opening
01-02-2017 10:00 is the first observed river mouth closure since May 2016. Since that time there has been good rainfall but no flood events were the Barham River has broken its banks.
Good river flows have kept the river mouth open.
01-02-2017 at 11.15 the estuary height is 1.12m, the river mouth is closed and sea conditions are slight.
02-02-2017 at13.20 the estuary height is 1.20m, the river mouth is closed, sea conditions are slight and the berm clearance is 0.15m. This day at 12.45 the Paradise River Gauge is at o.18m. On the 17-01-2017 it was at 0.20m.
03-02-2017 at 10.15 the river mouth is open, sea conditions are smooth and the estuary height is 1.24m. The main contributing factor causing the river mouth closure was clearly the high predicted tides following the New Moon.
|12-05-2016 Weather Event
At 09.55 on the 12/05/2016 the estuary water height is at 1.19m. The river mouth is open, the flow is out and there is moderate sea conditions.
At 15.15 waves are entering the river mouth. The wind is a strong Westerly and the estuary height is 1.45m.
The high tide at 16.10 in the Harbour is at 1.36mAHD.
At 16.21 the estuary height is 1.57m and at !6.44 it is at 1.60m.
A similar pattern but with a lower high tide and smaller seas occurred on the 12/05/2016 and the estuary water height peaked at 1.56m at 17.20.
A pattern I have noticed in past years with Westerly winds, moderate sea conditions and an open river mouth. The estuary water height will be raised approximately 0.2metres above the high tide peak in the Harbour.
|11-05-2016 Weather Event
AT 13.20 on the 11/05/2016 the estuary water height is 1.22m. The rver mouth is open and there are moderate seas entering the estuary.
At 15.05 the estuary is at 1.66m. At 15.10 the tide level in the Harbour is 1.55mAHD. The wind is a strong Westerly.
At 15.40 the high tide level in the Harbour is 1.67m AHD.
At 16.40 the estuary water height is 1.81m.
At 16.43 the estuary water height is a 1.76m and dropping.
|10-05-2016 Weather Event
On Monday 09/05/2016 the Barham river mouth is closed, the estuary water height is 1.30m. The berm clearance is 0.2m and the seas are slight.
At 07.50 on Tuesday 10/05/2016 the river mouth is just open and the estuary height is 1.66m. the seas are slight and the tide is low. The paradise river gauge is at 0.406 and the flow has very light sediment.
At 14.45 the estuary height is 1.58m; waves are coming in the open river mouth and the seas have become moderaate.
At 14.50 the tide height in the Harbour is1.57mAHD [2.51m CD].
At 15.47 the tide is receding and the estuary height is 1.66m.
The estuary height was recorded as only 0.1 of a metre higher than the tide peak.
|05-05-2016 Weather Event
For 2 days leading to the 05/05/2016 rough seas had been having a dynamic affect at the Barham river mouth. The river mouth was closing and opening with swell and tides. The estuary water height ranged between 1.2m and 1.41m.
The largest swell I observed during that weather event was at 9.40 on the 05/05/2016. The estuary water height was 1.31m, the river mouth was open and the flow was both in and out with the swell entering the estuary.
|30-04-2016 Estuary Entrance Opening
Artificial estuary opening. 1.81m AHD.
|11-04-2016 Estuary Entrance Closure
On the 09/04/2016 at 9.30 the Barham river mouth is open and the estuary water height is 0.95m.
On the 11/04/2016 at 10.30 the river mouth is closed and the estuary water height is 1.28m.
On the 12/04/2016 moderate to rough swell is crossing wide areas of the berm including opposite the GOR bridge [BmP2]. There is seaweed 100m up the estuary from swell crossing the berm.
13/04/2016 the estuary water height is 1.46m and the berm clearance is 0.52m.
!6/04/2016 the estuary is at 1.605m and the river flow is low; the paradise river gauge is at 0.175m.
25/04/2016 the estuary height is 1.75m.
|08-04-2016 Estuary Entrance Opening
On the 01/04/2016 the estuary water height was 1.25m and the berm clearance was 0.2m. On the 08/04/2016 the river mouth is open and the estuary water level is 0.96 m.
|26-03-2016 Estuary Entrance Closure
The estuary water level fell to 0.92m before the river mouth closure on the 26/03/2016.
|18-03-2016 Estuary Entrance Opening
The estuary water height was 1.435m with minimal berm clearance on the 18/03/2016. The river mouth then opened overnight.
|10-03-2016 Estuary Entrance Closure
The estuary water height fell to 1.01m AHD before the river mouth closure on 10/03/2016.
|26-02-2016 Estuary Entrance Opening
On the 26/02/2016 the river mouth naturally opened with the estuary water height at 1.64m AHD.
Mouth Condition Snapshots
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