Seems like mostly a cosmetic issue, and the complaints are being pushed by people who opposed the flyover in the first place. I don't think there have been any injuries or property damage.
I'm guessing the contractor doesn't know which spots were grouted and which were not, so they are waiting for the spalling to run its course before doing a one-time fix. I am surprised that Walsh/Fluor hasn't put up netting, though. Seems like an simple way to protect against liability.
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la forme d'une ville change plus vite, hélas! que le coeur d'un mortel...
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