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.
Citation
Title Major Dams of New York State (Shapefile : 1999)
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.
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
irregular
Constraints on resource usage:
Constraints
Use limitation statement:
Cornell Unversity provides these geographic data "as is." Cornell University makes no guarantee or warranty concerning the
accuracy of information contained in the geographic data. Cornell University further makes no warranty either expressed or
implied, regarding the condition of the product or its fitness for any particular purpose. The burden for determining fitness
for use lies entirely with the user. Although these files have been processed successfully on computers at Cornell University,
no warranty is made by Cornell University regarding the use of these data on any other system, nor does the fact of distribution
constitute or imply any such warranty. Although these data have been processed successfully on a computer system at the U.S.
Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data
on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S.
Geological Survey in the use of these data.
Constraints on resource usage:
Legal Constraints
use constraint:
otherRestrictions
Other constraints
Use Constraints: None. Acknowledgment of the National Atlas of the United States of America would be appreciated in products
derived from these data.
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
Other constraints
Access Constraints: None
Spatial representation type code:
vector
Processing environment:
Native Dataset Environment: ESRI shapefile format
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-162.928333
eastBoundLongitude
-66.015000
northBoundLatitude
68.068889
southBoundLatitude
18.018056
Temporal Extent
1995-01-01
1996-01-01
Additional information on resource:
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).
descriptor The representation of the entity in the data.
sequence Identifier
name Shape
Band
descriptor The size of the shape in coverage units.
sequence Identifier
name Area
Long Wavelength
0.000
Short Wavelength
0.000
units
Band
descriptor The perimeter of the shape in coverage units.
sequence Identifier
name Perimeter
Long Wavelength
0.000
Short Wavelength
0.000
units
Band
descriptor Internal feature number.
sequence Identifier
name Dams00x020
Long Wavelength
7782
Short Wavelength
1
units
Band
descriptor The official National Inventory of Dams identification number for the dam, known formerly as the National Id. The first two
characters of the identity are the State two letter abbreviation, based on the location of the dam. The last five characters
of the identity are a unique number (AB#####).
sequence Identifier
name Nid_id
Long Wavelength
WY83004
Short Wavelength
AK00001
units
Band
descriptor The official name of the dam. For dams that do not have an official name, the popular name is used.
sequence Identifier
name Dam_name
Band
descriptor The reservoir name or names in common use other than the official name of the dam. Names are separated with semicolons.
sequence Identifier
name Other_name
Band
descriptor A term indicating the potential hazard to the downstream area resulting from failure or mis-operation of the dam or facilities.
sequence Identifier
name Hazard
Band
descriptor The name of the State in which the dam is located.
sequence Identifier
name State_name
Band
descriptor The name of the County in which the dam is located.
sequence Identifier
name County
Band
descriptor The official name of the river or stream on which the dam is built. If the stream is unnamed, it is identified as a tributary
("TR") to a named river. If the dam is located offstream, the name of the river or stream is entered plus "-OS" or "OFFSTREAM".
sequence Identifier
name River
Band
descriptor A term indicating the primary purpose for which reservoir is used.
sequence Identifier
name Prm_purpos
Band
descriptor A term indicating the dam type as one of the following: Arch, Buttress, Gravity.
sequence Identifier
name Nid_damtyp
Band
descriptor The year when the main dam structure was completed. A value of 0 indicates that the year is unknown.
sequence Identifier
name Year_compl
Long Wavelength
1995
Short Wavelength
1800
units
Band
descriptor The maximum of either the dam height, the hydraulic height, or the structural height of the dam. A value of 0 indicates that
the height is unknown.
sequence Identifier
name Nid_height
Long Wavelength
6200
Short Wavelength
3
units
Band
descriptor A term indicating owner type.
sequence Identifier
name Own_type
Band
descriptor The name of the nearest downstream city, town, or village that is most likely to be affected by floods resulting from the
failure of the dam.
sequence Identifier
name Near_city
Band
descriptor The name of the owner of the dam.
sequence Identifier
name Owner
Band
descriptor The surface area, in acres, of the impoundment at its normal retention level.
sequence Identifier
name Surf_area
Long Wavelength
20358400.0
Short Wavelength
0.00
units
Band
descriptor The drainage area of the dam in square miles. It is defined as the area that drains to a particular point (in this case, the
dam) on a river or stream.
sequence Identifier
name Drain_area
Long Wavelength
300000.00
Short Wavelength
0.00
units
Band
descriptor The normal storage in acre-feet. Normal storage is the total storage space in a reservoir below the normal retention level,
including dead and inactive storage and excluding any flood control surcharge storage.
sequence Identifier
name Norm_stor
Long Wavelength
9700000000.0
Short Wavelength
0.00
units
Band
descriptor The maximum storage in acre-feet. Maximum storage is the total storage space in a reservoir below the maximum attainable water
surface elevation, including any surcharge storage.
sequence Identifier
name Max_stor
Long Wavelength
9700000000.0
Short Wavelength
0.00
units
Band
descriptor Dam longitude as a single value, in decimal degrees.
sequence Identifier
name Longitud_x
Long Wavelength
-66.015000
Short Wavelength
-162.928333
units
Band
descriptor Dam latitude as a single value, in decimal degrees.
sequence Identifier
name Latitud_x
Long Wavelength
68.068889
Short Wavelength
18.018056
units
Band
descriptor The Federal Information Processing Standard (FIPS) code used by the U.S. Bureau of the Census for the State in which the dam
is located.
sequence Identifier
name Fips_state
Band
descriptor The FIPS code used by the U.S. Bureau of the Census for the county in which the dam is located.
source description
Source Contribution: Spatial and attribute informationSource Type CD-ROM
source citation
Title National Inventory of Dams, Water Control Infrastructure
publication Date
1996-01-01
cited responsible party
-
publisher
organisation Name
FEMA National Dam Safety Program
Contact information
Address
, Washington, DC
cited responsible party
-
originator
organisation Name
U.S. Army Corps of Engineers in cooperation with FEMA's National Dam Safety Program
Resource extent
Temporal Extent
1995-01-01
1996-01-01
source
source description
Source Contribution: Spatial and attribute informationSource Type online
source citation
Title Major Dams of the United States
publication Date
1998-01-01
cited responsible party
-
publisher
organisation Name
U.S. Geological Survey
Contact information
Address
, Reston, VA
cited responsible party
-
originator
organisation Name
U.S. Geological Survey
Resource extent
Temporal Extent
1995-01-01
1996-01-01
Completeness Commission
evaluation Method Description
This file contains those dams from the National Inventory of Dams with a height of 50 feet or more, or with a normal storage
capacity of 5000 acre- feet or more, or with a maximum storage capacity of 25,000 acre-feet or more. Dams outside of the 50
States, Puerto Rico, and the U.S. Virgin Islands are not included, nor are dams for which there is no positional information
in the National Inventory of Dams.
Completeness Omission
evaluation Method Description
This file contains those dams from the National Inventory of Dams with a height of 50 feet or more, or with a normal storage
capacity of 5000 acre- feet or more, or with a maximum storage capacity of 25,000 acre-feet or more. Dams outside of the 50
States, Puerto Rico, and the U.S. Virgin Islands are not included, nor are dams for which there is no positional information
in the National Inventory of Dams.
notes: This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.