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The Commissioners' Plan of 1811 was the original design for the streets of Manhattan above Houston Street and below 155th Street, which put in place the rectangular grid plan of streets and lots that has defined Manhattan on its march uptown until the current day.
Since the spacing of streets in grid plans varies so widely among cities, or even within cities, it is difficult to generalize about the size of a city block. Oblong blocks range considerably in width and length. The standard block in Manhattan is about 264 by 900 feet (80 m × 274 m).
A grid plan from 1799 of Pori, Finland, by Isaac Tillberg. The city of Adelaide, South Australia was laid out in a grid, surrounded by gardens and parks. In urban planning, the grid plan, grid street plan, or gridiron plan is a type of city plan in which streets run at right angles to each other, forming a grid. [1]
These streets do not run exactly east–west, because the grid plan is aligned with the Hudson River, rather than with the cardinal directions. Thus, the majority of the Manhattan grid's "west" is approximately 29 degrees north of true west; the angle differs above 155th Street, where the grid initially ended.
When this plan succumbed to political squabbles and landowner demands, the city appealed to the state to dictate a design. [41] The result was the Commissioners' Plan of 1811, setting out the street grid of Manhattan above Houston Street. "In general," the commissioners resolved, everything "should be rectangular."
Formulated in the Commissioners' Plan of 1811, New York adopted a visionary proposal to develop Manhattan north of 14th Street with a regular street grid. The economic logic underlying the plan, which called for twelve numbered avenues running north and south, and 155 orthogonal cross streets, was that the grid's regularity would provide an ...
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Street grid as seen from the air in 2009 1847 map showing the street layout and ferry routes for lower Manhattan. The streets in the area were laid out as part of the Castello Plan prior to the Commissioners' Plan of 1811, a grid plan that dictates the placement of most of Manhattan's streets north of Houston Street.