Kanálisok · city chapter

New York

Beneath streets and skyscrapers

New York’s sewer network was not created from a single master plan: sections were already being built in Manhattan in the 1830s, and many early conduits were made of brick. One of the city’s oldest sewers still in service dates from the 1850s.

Manhole cover from this city

New York beneath the surface

To avoid the epidemics ravaging the Old World, New York began building its sewer network relatively early. By 1857, sewers ran beneath one third of the city’s nearly 800 kilometres of paved roads.

By the early 1890s, New York had approximately 750 kilometres of sewers. As the city grew, several natural waterways were also forced underground.

Buried waterways

The Sunswick, Linden and Tibbett’s were once surface waterways; as the city developed, they were gradually buried underground.

Croton and Manhattan

The Croton Aqueduct supplied the city with fresh water from 1842. An extensive sewer network still runs beneath Canal Street.

Sewer details

Details of New York’s underground infrastructure.

The alligator legend

Urban legend claims that alligators live in New York’s sewers. The story was reinforced by an incident in Harlem in 1935.