Canning Tunnel
Template:Short description Template:Use Australian English Template:Use dmy dates The Canning Tunnel is a tunnel that originates just west of Canning Dam and runs for approximately Script error: No such module "convert". through the granite Darling Scarp to the western portal trunk main in Soldiers Road about Script error: No such module "convert". south of the Brookton Highway intersection. It measures Script error: No such module "convert".. A separate Script error: No such module "convert". pipeline from Canning Dam remains. The tunnel is more than Script error: No such module "convert". below ground level at its deepest point.
History
The Canning Tunnel was constructed between 1973 and 1975 to link Canning Dam to Perth's Integrated Water Supply System.[1] It was built to replace the Canning Contour Channel, which was a depression era public works project of the 1940s and constructed in conjunction with the opening of the dam.[2]
110 men were employed in the first year of construction after which the workforce reduced to 60. The tunnel was built at a cost of Template:AUD, equivalent to Template:AUD in Template:Inflation/year, and was officially opened by Desmond Henry O'Neil, the Minister for Works, Water Supplies and Housing, on 17 January 1975.
The Canning Contour Channel was maintained and partially operated for two years after the tunnel's opening as a precautionary measure.[1]
References
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- ↑ a b State Heritage Office record for "Canning Contour Channel (fmr)"
- ↑ Script error: No such module "citation/CS1".
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