Acknowledgements:
We gratefully acknowledge the assistance of Bob Packett, Coastal CRC research officer, Fitzroy study area, for contributing his knowledge of the river and walls to this research and for providing transport to view those features.

References:

1.	WWF Great Barrier Reef Campaign (2001), Great Barrier Reef Pollution Report Card, [http://www.gbr.wwf.org.au]. Accessed 29 April 2002.
2.	Morning Bulletin (MB), 19 February 1892.
3.	Rockhampton Harbour Board, The Fitzroy River: Improvement Works: Mr Schmidt's Scheme, Rockhampton, 1897. Capricornia Central Queensland Collection (CCQC), Central Queensland University, Rockhampton.
4.	Report on the Rivers and Harbours of Queensland with Projects for their Improvement and Designs and Proposals for applying to their Execution the Hydraulic Dredging System of Lindon W. Bates', Queensland Votes & Proceedings (QV&P), 1898, vol. 4, pp. 33-39.