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The inlet was a river valley prior to 6,500 years ago when a rise in sea levels caused the valley to flood, it would have remained an open estuary until 3,500 years ago when the sand bar at the entrance built up to such a degree that discharge into the ocean was prevented. Then further dune building
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run-off. It covers a total area of 11.3 square kilometres (4 sq mi). The lagoon area is shallow with a typical maximum depth of 2 metres (7 ft) with a record depth of 4.5 metres (15 ft) recorded after exceptional rainfall. Two rivers discharge into the inlet, the
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by a bar of dunes between 30 metres (98 ft) to 40 metres (131 ft) wide. The dunes are breached intermittently, breaking naturally in 1849, 1872, 1919, 1993, 2000,2016 and 2017, and artificially in 1920, each time for a period of 3 to 4 weeks.
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271:"Culham Inlet this morning - clearly broken through to the ocean. The inlet previously broke through in 1993 and 2000 (when it washed away the causeway)"
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or a transient estuary, as the sand bar that prevents it discharging is almost always closed. The wetlands formed by the system are
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The area periodically supports a large array of flora and fauna. It is used as a commercial fishery and supplied large catches of
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313:"History and Management of Culham Inlet, a coastal salt lake in South Western Australia"
136:"Southern Prospects - The South Coast Regional Strategy for Natural Resource Management"
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194:"Estuary Assessment Framework for Non-pristine estuaries - Estuary 638 - Culham Inlet"
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with a degraded catchment, that is a result of substantial clearing and a
96:. The waters also support populations of smaller endemic species such as
342:"Australian Dictionary of Biography - Phillips, Samuel Pole (1819–1901)"
280:. Ravensthorpe Agricultural Initiative Network (R.A.I.N). 31 March 2024.
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and is approximately 7 kilometres (4 mi) west of
89:occurred so that breaks became less frequent.
45:The inlet is located on the eastern flank of
42:listed due to their ecological significance.
34:. The inlet is also referred to as a coastal
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293:"Region reroutes after bridges wash away"
111:, who named the inlet in 1848 after the
229:. Katanning, WA. 21 May 1919. p. 3
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249:"South Coast Rivercare - Culham Inlet"
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291:Wolfe, Talitha (13 February 2017).
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421:South coast of Western Australia
168:"About Australia - Culham Inlet"
80:The inlet is separated from the
406:Estuaries of Western Australia
60:The inlet is a wave dominated
51:Fitzgerald River National Park
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115:homestead of his son in law,
411:Inlets of Western Australia
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223:"The Ravensthorpe Country"
16:Inlet in Western Australia
107:The inlet was named by
377:33.90806°S 120.06861°E
318:. 1997. Archived from
196:. 2004. Archived from
170:. 2009. Archived from
141:. 2004. Archived from
227:Great Southern Herald
401:Goldfields–Esperance
382:-33.90806; 120.06861
322:on 16 September 2009
117:Samuel Pole Phillips
28:Goldfields-Esperance
373: /
174:on 22 November 2008
298:Albany Advertiser
148:on 6 January 2009
109:John Septimus Roe
47:East Mount Barren
32:Western Australia
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82:Southern Ocean
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346:. Retrieved
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324:. Retrieved
320:the original
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278:facebook.com
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253:. Retrieved
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233:15 September
231:. Retrieved
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202:. Retrieved
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172:the original
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143:the original
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20:Culham Inlet
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380: /
368:120°04′07″E
94:Black Bream
395:Categories
365:33°54′29″S
123:References
102:Hardyheads
30:region of
36:salt lake
348:15 April
326:15 April
255:15 April
204:15 April
178:15 April
152:15 April
100:and two
73:and the
71:Phillips
55:Hopetoun
274:(video)
113:Toodyay
62:estuary
49:in the
344:. 2008
251:. 2001
75:Steere
66:saline
22:is an
316:(PDF)
146:(PDF)
139:(PDF)
24:inlet
350:2009
328:2009
257:2009
235:2014
206:2009
180:2009
154:2009
98:Goby
40:DIWA
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