Beneath New York City lies a 7,500-mile labyrinth that processes billions of gallons of waste daily. This underground network, built over two centuries, includes forgotten tunnels, Civil War-era infrastructure, and modern engineering marvels. This episode explores New York's evolution from cholera outbreaks and “night soil” collectors to a complex wastewater system. Discover the massive interceptor tunnels, the iconic digester eggs of Newtown Creek, and the surprising journey of biosolids across America.

#NewYork #Infrastructure #History

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