The City Map for the Borough of Manhattan represents the Approved 1811 Commissionersí Plan plus subsequent officially adopted alterations maps. The 1811 Commissioners plan mapped the grid system north of North Street (now known as East Houston Street).

The avenues were mapped at a width of 100 feet and the streets were mapped at a width of 60 feet, except for main cross streets (14th, 23rd, 34th 42nd, 57th, 72nd, 79th, 86th, 96th, 106th, 116th, 125th, 135th, 145th and 155th Streets) which where mapped at a width of 100 feet. Each block was mapped with the dimension of 200 feet by 800 feet. Since the 1811 Commissionersí Map there have been over 3000 alteration maps legally adopted by the City of New York for the Borough of Manhattan, affecting various parts of the borough, but all based on the original map.

However, just because an alteration map was adopted does not mean the street was actually built or altered. During and after the mapping action, there is a process whereby the City officially acquires the street through various filings and procedures by the City and parties of interest within the mapping project area. These documents are filed with the City Register Office. (Some of these agreements may be on file at the Manhattan Borough President's Office for informational purposes only.) Additionally the Federal Government and the State of New York may alter the Cityís street system for infrastructure improvement projects, following their own rules and procedures. Not all changes made by the Federal or State governments are filed after the projects are completed.

The Manhattan Borough Presidentís Office is in the process of digitizing all the maps in the Officeís possession, in order to make them available to the public on this site. The site is for informational purposes only, and meant only to provide public access to those maps on file in the Manhattan Borough Presidentís Topographical Bureau. Not all the maps on file in the Manhattan Borough Presidentís Topographical Bureau are available in a digital format due to the size and/or condition of the original document. This site is intended to give you an idea of how the planned infrastructure of the Borough of Manhattan has changed over the past 200 years.

On the next page you will see the Manhattan Borough Map with accession numbers (ACC####) over the area that each map affects. By placing your mouse over the ACC numbers you will see the year and description of the map. To view a map, click on that map number.

These maps are provided for informational purposes only. If you plan to use these maps to conduct work in the city, you are responsible for otherwise verifying the information contained therein, including but not limited to: 1) whether the map was legally adopted by the City; 2) whether the City in fact acquired the mapped property; 3) that there are no alteration maps that supersede the map you plan to use; 4) That neither the U.S. nor the State of New York made any changes to the Cityís plan; 5) that the City has no current intention of altering the area in question (since there may be plans under review by the City Planning Commission that have not yet been approved by the City of New York.)

The information contained in this site is for general guidance and information only. Given the changing nature of laws, rules and regulations, and the inherent hazards of electronic communication, there may be delays, omissions or inaccuracies in information contained in this site. Accordingly, the information on this site is provided with the understanding that the City of New York, The Manhattan Borough Presidentís Office, the authors and publishers are not liable for any misunderstanding of the Cityís street system plan. As such, it should not be used without verifying the status of the map plan.

While we have made every attempt to ensure that the information contained in this site has been obtained from reliable sources, the City of New York, The Manhattan Borough Presidentís Office, the authors and publishers are not responsible for any errors or omissions, or for consequences arising from the use of this information. All information in this site is provided "as is", with no guarantee of completeness, accuracy, timeliness or of the results obtained from the use of this information, and without warranty of any kind, express or implied, including, but not limited to warranties of performance, merchantability and fitness for a particular purpose. In no event will the City of New York, The Manhattan Borough Presidentís Office, the authors and publishers thereof be liable to you or anyone else for any decision made or action taken in reliance on the information in this Site or for any consequential, special or similar damages, even if advised of the possibility of such damages.

Certain links in this site connect to other websites maintained by third parties over whom the City of New York, The Manhattan Borough Presidentís Office, the authors and publishers have no control. The City of New York, The Manhattan Borough Presidentís Office, the authors and publishers makes no representations as to the accuracy or any other aspect of information contained in other websites. Please e-mail any question you may have to MapRoom@manhattanbp.nyc.gov

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