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Laws of New York (Last Updated: November 21, 2014) |
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ADC New York City Administrative Code(NEW) |
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Title 28. NEW YORK CITY CONSTRUCTION CODES |
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Chapter 1. ADMINISTRATION |
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Article 104. CONSTRUCTION DOCUMENTS |
Section 28-104.7.6. City Datum
Latest version.
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All elevations noted in the construction documents shall be referred to and clearly identified as the United States coast and geodetic survey mean sea level datum of 1929 (national geodetic vertical datum, "NGVD"), which is hereby established as the city datum. By way of examples, tables 104.7.6.1 through 104.7.6.5 shall be used to convert borough elevations to their corresponding equivalent NGVD elevations. TABLE 104.7.6.1 ------------------------------------------------------- BRONX To obtain NGVD Elevations equivalency: Elevations ------------------------------------------------------- 10.000 -> add 2.608 -> 12.608 ------------------------------------------------------- 7.392 -> add 2.608 -> 10.000 ------------------------------------------------------- TABLE 104.7.6.2 ------------------------------------------------------- BROOKLYN To obtain NGVD Elevations equivalency: Elevations ------------------------------------------------------- 10.000 -> add 2.547 -> 12.547 ------------------------------------------------------- 7.453 -> add 2.547 -> 10.000 ------------------------------------------------------- TABLE 104.7.6.3 ------------------------------------------------------- MANHATTAN To obtain NGVD Elevations equivalency: Elevations ------------------------------------------------------- 10.000 -> add 2.752 -> 12.752 ------------------------------------------------------- 7.248 -> add 2.752 -> 10.000 ------------------------------------------------------- TABLE 104.7.6.4 ------------------------------------------------------- QUEENS To obtain NGVD Elevations equivalency: Elevations ------------------------------------------------------- 10.000 -> add 2.725 -> 12.725 ------------------------------------------------------- 7.275 -> add 2.725 -> 10.000 ------------------------------------------------------- TABLE 104.7.6.5 ------------------------------------------------------- +STATEN ISLAND To obtain NGVD Elevations equivalency: Elevations ------------------------------------------------------- 10.000 -> add 3.192 -> 13.192 ------------------------------------------------------- 6.808 -> add 3.192 -> 10.000 -------------------------------------------------------