OSBORNE'S FLAT DIVERSION SLUICE
MONGAN LANE OSBORNES FLAT, INDIGO SHIRE
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Statement of Significance
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OSBORNE'S FLAT DIVERSION SLUICE - History
Heritage Inventory History of Site:
Osborne's Flat was one of the first areas mined at Yackandandah, rich alluvial gold being discovered there in 1852. It formed part of what the mining surveyors called Lower Yackandandah. Initially the ground was worked by sinking, then by paddocking, wholesale stripping away of the non-auriferous topsoil to reveal the gold-bearing washdirt beneath. By 1859, the main method of alluvial working on the Yackandandah field was sluicing. The mining surveyor remarked upon several deep tailraces and tunnels in progress, designed to divert the course of the creek and act as channels for sluice boxes. Among them was the tailrace of Carlo Re and party '(foreigners)', cut through hard slate in the creek bank at Hayes Point, taking two years to complete and costing £1,200.
The tailrace at Osborne's Flat is likely from, say, the late 1850s - 1870.Heritage Inventory Description
OSBORNE'S FLAT DIVERSION SLUICE - Heritage Inventory Description
Osbornes Flat diversion sluice/nEastern channel - 750ft long, cut through granite with stone-retained walls. The channel appears to continue for some distance without stone walls. The creek now passes through this diversion channel, into which would originally have fitted sluice boxes./nWestern channel - The original course of the creek? This channel has been blocked off and is very silted-up. Sections of stone-retaining are still present. Part of the channel may be on freehold land./nWater races - On the eastern slope of Yackandandah Creek run four levels of water races.
Heritage Inventory Significance: Regional. The site has scientific significance because of its rarity.
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OSBORNE'S FLAT DIVERSION SLUICEVictorian Heritage Inventory
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