(Click image to see film of storm-tide surge in Frankston on Port Phillip Bay on 26 April 2009, soon after Channel Deepening. There is another film inside article.) Sue Pennicuik (Greens, Victoria) says that analysis of tidal data supports residents' reports of higher Bay tides since channel deepening. But even without higher tides overpopulation has made old conditions more dangerous. Films made by Sheila Newman and including still-footage by James Sinnamon, show very high water in a creek at a time when the tides themselves were not at their highest. What caused the very high levels in the mouth of Kananook Creek, Frankston, were increased volumes of run-off from increased hard surfaces associated with more buildings to accommodate population growth in Frankston, plus the very heavy, tropical style rain on top of the storm-tide. This means that, even without sea-level rise, a king tide could be devastating if it occurs during a similar short period of high rain and wind. Note that the deepening of the channel from the ocean to Port Phillip Bay was done to accommodate much bigger ships justified by projections of greater volumes of trade associated with the bigger populations in Australia as encouraged undemocratically by her state and Federal governments.
ABC TV Stateline 7.30 PM this evening (2 July 10) also has a story on the evidence of higher tides since channel deepening.