The Greatest Grid


Living on The Grid


Sidewalks are the invisible third element of the Commissioners’ Plan of 1811. The plan itself does not show them, and the commissioners’ remarks never mention them, but sidewalks are as much a part of the grid as the streets and blocks that they join.

When the commissioners drew up their plans for the grid, they may not have included specifications for sidewalks because these were already covered by preexisting legislation. Laws introduced after 1811 preserved two basic principles from the previous legislation: first, that the width of the sidewalk should be correlated to the width of the street, and second, that construction and maintenance of the sidewalk should remain the responsibility of the adjacent property owner even though the city owns and regulates the walk itself. Read More

According to city ordinances, sidewalks should be equal to one-fifth the width of the street. Given the street widths of the 1811 grid (60 feet for the east–west streets and 100 feet for the north–south avenues as well as for 15 of the east–west streets), the sidewalks were required to be 20 feet wide on the avenues and the wider cross-town streets, and 14 feet wide on the regular crosstown streets. As alterations disturbed the original consistency and uniformity of the grid over time, the sidewalks reflected those changes. For example, when Central Park was created at the center of the island, the park commissioners widened the sidewalks along its borders in order to create broad, shaded walks under the trees.

The laws regulating sidewalk construction and maintenance also grew increasingly specific after 1811. For instance, legislation detailed the type of stone property owners should use to pave their walks as well as the proper joining method. By requiring all property owners to build the sidewalks at their lots in unison and to the same standard of construction, the city ensured that sidewalks would reinforce the uniformity of the grid.

Even though the ordinances required property owners to pay for the walks fronting their lots, to keep them clear of snow and trash, and to repair them when necessary, sidewalks belonged to the public realm. The city controlled not only the physical development of this space, but also the activities that could be performed there. CY
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