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<p>The Happy Valley Reservoir was built between 1892 and 1897. In addition to water from its reserve, the reservoir receives water from Mount Bold Reservoir (via the Clarendon Weir).
Built between 1892 and 1897 at a cost of $1.8 million it was the third reservoir constructed in South Australiaas a supplement to the Thorndon Park Reservoir (built 1860) and the Hope Valley Reservoir (built 1872).
The original Happy Valley township, school and cemetery were completely flooded by the new reservoir requiring their relocation.The township was moved to the east while the cemetery, which is still in use today, was moved to the west and relocated alongside the base of the dam wall. On 7 August 1896 the tunnel's inlet valve was opened by the Governor of South Australia, Sir Thomas Fowell Buxton and the reservoir began filling.
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Happy Valley, was given its name by Edward Burgess, one of the first settlers in the area. Burgess, a staunch Methodist, arrived at Holdfast Bay on 20 January 1837 from Essex, England, aboard the ship 'Coromandel'and settled in nearby Clarendon as a farmer.</div>
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State Government Photographer</div>
29 June 1894<div style="display: none;">date QS:P571,+1894-06-29T00:00:00Z/11</div>
The History Trust of South Australian,  South Australian Government <br> Photo <a rel="nofollow" class="external autonumber" href="http://data.history.sa.gov.au/sagpc/media/preview/11842?maxsize=1000">[1]</a> <br> Object record <a rel="nofollow" class="external autonumber" href="http://data.history.sa.gov.au/sagpc/getitem/11842">[2]</a>