The land bridge is a landscaped strip over the eastern portal of both the CCT and the Kings Cross Tunnel. It took 20 per cent of the $38.1 million. It was originally designed to be 30 metres wide to reduce noise and improve local amenity. It was reduced to six metres wide in the Supplementary EIS. But it was extended to 40 metres wide following the Supplementary EIS stage in response to community concerns. Condition of Approval 166A required the RTA to do a detailed plan and consult further with the community. The costs reflect the change to a wider land bridge. The original contract did not include these costs because they arose from consultations after the Supplementary EIS and the signing of the contract.
This work is clearly the responsibility of the RTA.