The "Greatest Grid"

Yesterday I made a trip to the Museum of the City of New York to see The Greatest Grid. This exhibit celebrates the 200th anniversary of the Commissioner's Plan of 1811 that established the city's grid system. The exhibit is full of historic maps and the centerpiece is the Commissioners Plan Map of 1811 laid out on a glass covered table.

The grid was placed over the more sparsely settled areas above North Street (now Houston) without regard to the city's topography, water features or existing houses. Villages such as Harlem were eliminated to make room for straight streets. Houses that stood in the way (or even near the way) were demolished or moved. There is a section of the exhibit showing how houses were moved to accommodate the grid. This map from the exhibit's web site is one of many that show the land before the streets were built with the grid superimposed in light gray.

The exhibit starts with a video loop of residents proudly stating their address along the grid eg."125th and First!" After spending hours gawking at the maps you can go upstairs and see The Unfinished Grid, a collection of future design speculations resulting from a call for ideas from the Architectural League of New York. Many of these designs revolve around ways to break free from the grid's restrictions.

This collection of maps, photographs, newspaper clippings and other artifacts is very impressive and well worth a visit if you are in the New York metropolitan area. It runs through April 15th, 2012. The museum is located on the grid, at 5th and 103rd.

Detroit - the Woodward Plan

There's a lot of good cartographic content on flickr. I was looking for something else on a flickr group titled The Paper Cites- Speculative and Unbuilt Structures, when I came across this image from a user who calls himself whitewall buick. It shows the "Governor and Judges' Plan" for Detroit after the1805 fire destroyed the city. This plan was based on L'Enfant's plan for Washington DC with a series of plazas and wide boulevards radiating outwards. The shaded area is what was actually implemented.

According to the poster, the remaining areas grew haphazardly because the city was not given the authority to force private landowners to subdivide their land according to the plan. Unfortunately much of the content on flickr is poorly attributed and he does not give much more information.

Here is a map the current street network (and what was ruined) from Detroit Yes! I suspect this map is a bit out of date because it does not show the Campus Martius Park (see below.)

Michigan Territory Chief Justice Augustus B. Woodward proposed a plan of hexagonal blocks with the Grand Circus as the central point.

The Campus Martius, a few blocks south of the Grand Circus, is the point of origin for Michigan's coordinate system of roads that includes the Seven and Eight Mile roads located at those distances away.

Here is a photo of the point of origin marker. Campus Martius Park has recently been redeveloped into a very popular city park with fountains, performance spaces and an ice skating rink.