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Engineers in the 1950s discovered rust on the tunnels valves. There were concerns that if they closed the valves for tunnel inspections, they may never open again, leaving new york city without water. So they chose to keep them open. As a result, there has not been significant inspection, maintenance, or repair of the tunnels in decades. No one knows their current condition. Hurwitz currently, city tunnel 1 and city Tunnel Number 2 would be feeding each half of the city. So youd lose half the city if you didnt have a replacement. Narrator without half of its water supply, the city would shut d...

Were frequently subsidized by the federal government, Water Pricing was often calculated without accounting for the initial cost to build the systems. We made Major Investments in assets in the 50s, 60s, and 70s. And for the first 40 years of that pipe, there really may not have been many maintenance requirements. Were past that period now. Narrator Water Pricing based only on daytoday operation, and not on planning for maintenance and eventual upgrades has resulted in a considerable repair and replacement backlog. Allbee on a national scale, if you looked at what were spending now, and you lo...

And sources of Drinking Water. Far deeper than the subways. The second was the Safe Drinking Water act, built at the beginning of the 20th century, that provides federal standards to assure the safety they are concretelined and bored through solid rock. Of the water that we drink. Both acts have been amended since they were first adopted, they could last centuries. But the mechanical equipment within them will not. And theyre both cornerstones for the water issues engineers in the 1950s that we face in america today. Discovered rust on the tunnels valves. Allbee the clean water act set a floor...

We have the United Nations failure can have a dramatic impact on the nation, and even internationally. So theres a really keen awareness that you always have to be fixing the system. Things corrode, they rust. They get to where you turn them on and nothing happens. But it is so totally used in every nook and cranny, that making any accommodation to shut it down, to do something to it, is very difficult. Narrator two Massive Underground tunnels, called simply tunnel 1 and tunnel 2, provide most of the citys water supply. They run hundreds of feet below manhattan, far deeper than the subways. Bu...

We made the initial investments in the plants and the pipes. But once we accomplished that, there was this great recognition that we had a series of issues associated with wet weather conditions. Storm events where, all of a sudden, youre dealing with a lot of water. Narrator large amounts of rainwater can cause flooding. Engineers developed two approaches to stormWater Infrastructure to transport water away from the urban environment. One approach was to carry waste and stormwater through the same pipe. This combined system was less expensive than building two individual pipe networks. And st...