This WSJ story provides a fascinating look at how Italy planned for too long, but failed to finally execute the final step of using the submersible steel floodgates that were already built to tackle just the kind of flooding that happened recently. Problems include the use of submersible steel floodgates that would go back under water after use in a flood, causing an additional complication to building the floodgates. The city itself was not entirely behind the plan so that execution was delayed. The politics and corruption added additional delays that astonishingly delayed the plan for over 10 years. About 80% of Venice was flooded with waters rising 6 feet above normal levels on November 12, 2019. It is hard to believe that 78 yellow steel barriers stayed on the seabed instead of blocking the three points at which water could enter from the sea into Venice. Most of the area has normal land barriers and the steel gates were designed to block water from entering at the smaller points that separate land barriers. It is also unbelievable that the plan started after a bad flood in 1966, construction beginning in 2003 after approval by over 12 public bodies, expert panels and courts on the complicated design. Costs went up as years passed from $1.7 billion to $5.5 billion. Ordinary Italians say Rotterdam has similar problems and has dams and no flooding, that the underwater design of the gates did not make sense just for aesthetics. Some experts say the underwater design doomed the project by making it costly and difficult, bureaucratic delays did the rest. The longer the delays and higher the cost the faster it eroded support in Venice and Italy, leading to this improbable result of building the flood gates with the underwater design, testing them but not making it operational in the final step, and not authorizing the use on November 11, 2019. The gates were in disuse astonishingly for so long that rust was discovered at one point. Venice is now losing much of the population near its canals with only 50,000 remaining from a one time population of 171,000. The latest flood damage is over $1 billion and inexplicable after so much effort building the 74 yellow floodgates under water. ...
Original article 13 minutes, gist 1 minutes