It’s not just the buildings — even the canals are getting big repairs.
There are roughly 150 canals in Venice, which might sound like a lot, though you probably many more streets where you live. But whatever they’re made of, streets require maintenance. And often — make that quite often, in Venice — maintenance is conducted only when it has become absolutely necessary.
Canal-beds here are made of mud, and the movement of the tides, plus the thrashing of motorboat propellers night and day, tend to make the mud move around. Sometimes the waves (underwater force of) push it to the sides of the canal where it accumulates, blocking any drains that might be emptying from buildings; the blockage causes the material to build up and over time the chemicals in the material damage the building’s walls. So the mud has been transformed from a water problem to a land problem, and sometimes is the signal that it’s really time to deal with it.
Or the the mud swirls around, carried by the water to wherever the force of the waves diminishes, at which point it eventually drifts downward and is deposited on the bottom. When this process reaches the point where there is no longer enough useful average depth to the water, the dredgers are called in. Just think: High water means that many boats can’t pass under certain bridges until the tide turns, but low water can mean that boats can’t pass at all, bridges or not. This is not a happy situation if the boat in question is an ambulance, or belongs to the firemen. So yes. In your town your roads have potholes. Here we have mud.
They were as good as their word: On December 17, they departed, and on 19 we rowed our little boat back to its mooring. When the weather is cold, the water is usually extremely clear, and I can tell you that we could see the bottom of the canal by the wall, and it was definitely deeper. Of course, as always, we’d have to measure it at low tide to know how much deeper it was, compared to two months ago (at low tide). But keeping in mind that now, and for the next month, the lagoon is prone to exceptional low tides, that would also be deceptive.
But the saga continues; dredging is far from over. Via Garibaldi is a rio tera’ — “earthed-in canal” — but not literally filled in, as you might have innocently imagined, because a large culvert was installed beneath the pavement to allow the tidal flux to continue its useful work of fluxing. And over the years the tide had deposited mud in this culvert, too. A filled-in culvert is just as bad as a clogged-up canal.
Conclusion: Considering a new career? Give some thought to dredging Venice. Just regard it as the Humber Canal of cities.