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Major Dams of New York State (Shapefile : 1999)
MapsheetNew York State State
ProviderNational Atlas
FormatShapefile .shp
Download 36_dams_s.zip | Add to basket
Coordinate System Geographic | Decimal degrees
DatumNorth American Datum of 1983
Publication date 199904
Date added or updated not specified
DescriptionAbstract
This map layer includes the locations of over 500 majors dams in New York State. The information in the map layer was provided by the U.S. Army Corps of Engineers (USACE). The original dam information came from the National Inventory of Dams (NID) which was produced by USACE in cooperation with FEMA's National Dam Safety Program. The full NID contains over 75,000 dams and is used to track information on the country's water control infrastructure. This data set portrays major dams of New York State. The data set was created by extracting dams 50 feet or more in height, or with a normal storage capacity of 5,000 acre-feet or more, or with a maximum storage capacity of 25,000 acre-feet or more, from the 75,187 dams in the U.S. Army Corps of Engineers National Inventory of Dams.
Purpose
These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey in the use of these data.
Supplemental Information
In the online, interactive National Atlas of the United States, at scales smaller than 1:4,850,000 the data is thinned for display purposes. For scales between 1: 4,850,000 and 1:22,000,000, dams are only shown if they have a height of 500 feet or more, or a normal storage capacity of 50,000 acre-feet or more, or a maximum storage capacity of 250,000 acre-feet or more (1173 dams). At scales smaller than 1:22,000,000, dams are only shown if they have a height of 5000 feet or more, or a normal storage capacity of 500,000 acre-feet or more, or a maximum storage capacity of 2,500,000 acre-feet or more (240 dams).
Topicsenvironment, inland waters, structure
File size21 kilobytes
Use constraintsNone. Acknowledgment of the National Atlas of the United States of America would be appreciated in products derived from these data.
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