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 - 11-11-2018
Fence corner 17th hole.
02-04-2010 - 20-03-2018
Fence corner 17th hole.
29-08-2010 - 11-11-2018
01-01-2013 - 11-11-2018
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.
|03-12-2018 Estuary Entrance Opening
At 13.00 the Barham river mouth is closed with minimal berm clearance. The seas are rough with gale force West winds. The estuary height is approximately 1.25 m.
The following day, the 04/12/2018 the river mouth is open and the estuary height is 1.12m.
Even against moderate river flow the strong Westerly weather has made this the 3rd short term river mouth closure for the new season.
The chances of a closure may have been increased by dune replenishment works. Sand from the harbour [NE of the river mouth] has been trucked to the SW of the river mouth to rebuild the dune supporting the Great Ocean Road. That area of the dune is vulnerable to SE storms especially. Of note the sand from the harbour has tested as being 50% fine sand while the original dune in that area was 30% fine sand. There may be an increase in the amount of sand travelling past the river mouth, West to East.
|23-11-2018 Estuary Entrance Opening
At 09.45 the Barham river mouth is closed and the estuary height is 1.11m. The West wind is strong and the sea is moderate. The Paradise river gauge is at 0.29m. There has been 14mm of rain in the last 48 hours but there is no sediment in the river flow. At 14.00 the estuary height is approximately 1.2m.
The following day, 24/11/2018 the river mouth is open and the estuary height is 1.1m.
|07-11-2018 Estuary Entrance Opening
The Barham river mouth is closed with minimal berm clearance. The estuary height is approximately 1.2m. Days of strong West/NthWest winds with rough seas has pushed sand into the river mouth. The Paradise river gauge is at 0.24m.
On the 08/11/2018 the river mouth is open and the flow is out.
|04-05-2018 Estuary Entrance Opening
30/04/2018 at 11.00 the estuary level is at 0.84m. The river mouth is closed with rough seas with a smooth swell entering the estuary over the berm. The river flow gauge is at 0.163; quite low.
01/05/2018 at 13.45 the estuary height is 1.02m. Seas are moderate.
04/05/2018 at 8.30 the river mouth is just closed with the berm clearance zero. The estuary height has peaked at 1.21m. Seas are smooth.
This is the last river mouth closure for the season. There was a total of 5 river mouth closures for the season.
|16-04-2018 Estuary Entrance Opening
31/03/2018 at 16.00 the Barham river mouth has closed. The sea is smooth. The estuary height is 0.9m.
02/04/2018 at 17.40 the Paradise River Gauge is at 0.168m [fairly low]. The estuary height is 1.18m and the sea is smooth. The berm clearance is 0.23m.
07/04/2018 at 09.30 the estuary height is 1.42m. An artificial opening of the river mouth has failed; closed by the following high tide. The berm clearance is below 0.3m.
12/04/2018 at 10.00 the estuary height is 1.53m, there is a moderate sea and moderate west wind. The berm has not been topped by waves since 07/04/2018.
14/04/2018 at 10.00 the estuary height is 1.58m. Seas are slight but there is a strong West wind.
15/04/2018 at 11.15 the estuary height is 1.92m. Gales and the rough seas are crossing the berm in all areas without established vegetation.
15/04/2018 at 15.40 the estuary height is 1.98m and the berm clearance is 0.1m. Weather conditions are calmer. The Paradise river gauge after rain is at 0.37m but with little sediment in the water.
16/04/2018 at 07.30 the estuary height is 1.7m, sea conditions are moderate to rough.The river mouth looks as if it has had an early morning natural opening. From fine debris lines it seems to have reached a peak estuary water height of 2.1m before the RM opening. The Paradise river gauge is at 0.32m. At 12.30 the estuary height is 1.2m.
|23-03-2018 Estuary Entrance Opening
04/03/2018 at 18.00 the River mouth is closed, the sea is smooth and the estuary water height is 1.04m. The river flow is very low, below 0.15 at the Paradise river gauge. The high tide and low river flow appear to be the main contributors to the river mouth closure.
13/03/2018 at 11.30 the estuary water height has reached 1.26m.
The 19th, 20th and 21st of March seas are rough.
22/03/12018 at 08.15 the estuary height is 1.64 and the berm clearance is just under 0.2m. At 1.6m the estuary water starts to spread out into the backwater.
23/03/2018 at 09.00 the estuary height is 1.642m. The overnight high tide had covered an approved attempt at an artificial opening. The berm clearance is 0.23m.
23/03/2018 at 10.00 An approved artificial opening is being dug out again to protect a couple of camp sites which were not needed or used on the weekend.
23/03/2018 at 03.15 the river mouth is open and the estuary height is 1.32m.The artificial river mouth openings are being approved at lower and lower estuary water heights.
|22-02-2018 Estuary Entrance Opening
15/02/2018 at 11.00 the River Mouth is closed and the estuary height is 1.09m. There is and has been strong West winds, and rough seas that were the main causal factor of the river mouth closure.
By the 19th the estuary height is 1.42m.
22/02/2018 at 11.15 the estuary height is 1.535m. The river mouth has just been opened illegally by a member of the Public. I estimate that a natural opening would occur at 1.7m or below.
23/02/2018 at 09.15 the estuary height is 1.01m.
|27-01-2018 Estuary Entrance Opening
24/01/18 at 09.00 the river mouth is closed. It is calm with light winds but I am sure there was moderate seas during the night. The estuary height is only 0.88m. The Paradise river flow gauge is at 0.165.
On Friday the 26th the estuary height is 1.1m.
27/01/2018 at 09.00 the river mouth has naturally opened and the estuary height is 0.92. This is the first multiple day river mouth closure of the season.
Mouth Condition Snapshots
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