No clear explanation of the FAD

There has been no clear public summary about what was covered in the First Amendment Deed. The best explanation to date came in the RTA submission to the Nile Inquiry:

The three main such changes related to the redevelopment of William and Park Streets, the extension of the land bridge at the eastern end of the Kings Cross Tunnel, and a requirement to change the Tunnel Control Centre for the Cross City Tunnel to ensure the capacity of the roof of the Eastern Distributor was sufficient to carry the Tunnel Control Centre.

Source: RTA submission to the Nile Inquiry, page 5

Exhibit 3.1 gives a breakdown of the work covered by the $38.1 million based on documents from the RTA. The $38.1 million includes the $35 million covered in the First Amendment Deed, and $3.1 million that the RTA funded from the upfront payment.