Sabotaging the NYC water tunnels could make the city uninhabitable for years.
Um, sabotaging any city's water tunnels would make the city uninhabitable for years.
Most frightening experience I ever had as engineer in my life:
I was intern. At a place in a midwestern city where a city's water infrastructure can be monitored. Long story short, I heard "PING". Then three more "PING"s. Then another "PING". Then 2 more. Even as an idiot intern, I knew what the implications were with respect to tensioned concrete. I was thinking in my head, "8 feet diameter. 96 inches." But I couldn't remember the PSI because I probably had already soiled myself. Thankfully there was a grey beard there who coolly looked over at me and said, "Probably want to start shutting that down son."
2 things I learned. Calm is contagious. And our infrastructure is way more frail than should be the case.
Can totally picture
How are you counting this? If you mean Hudson River crossings between NJ and Manhattan, there are five: two road tunnel groups (Holland and Lincoln) and three rail grops (Upper/Lower Hudson and North River). When Gateway is complete (2030s), there will be four rail groups.
But if you mean the entire NYC metro area, there are significantly more: Manhattan <-> Brooklyn alone has the Hugh L. Carey for road traffic, and then six active subway tunnel groups. Manhattan <-> Queens has a similar number.