Catch-22: Lack of initial bore holes left Snowy 2.0 tunnelling into the geological unknown reneweconomy.com.au/catch-22-lac...
Catch-22: Lack of initial bore holes left Snowy 2.0 tunnelling into the geological unknown
The initial survey work on the longest tunnel in Snowy 2.0 involved just 22 investigation bores, with one gap of 1.75 km between tests, the contractors have revealed.
reneweconomy.com.au