June 2022 G-14642.71-006-R-Rev0_FINAL 11 The tunnel design dimensions are nominally 5.8 m wide by 6.0 m high and the twin tunnel arrangement for WUG (after Mitchell Daysh 2022) will be as presented in Figure 7. Figure 7: Conceptual layout section of twin tunnel option (after Mitchell Daysh 2022). Section 6.0 describes the geotechnical investigations and implications for the Willows Access Tunnel. Section 7.0 describes the available geotechnical information for the main access tunnel. Section 8.0 describes the available geotechnical information for the WUG access tunnel.
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