Connecticut Dams
FGDC Classic | FGDC FAQ | FGDC Plus | XML

Connecticut Dams
SDE Feature Class - depgis.DEP.DAM
FGDC, ESRI Metadata
DescriptionGraphicSpatialData StructureData QualityData SourceData DistributionMetadata
+ Resource Description
Citation
Information used to reference the data.
Title: Connecticut Dams
Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Publisher: State of Connecticut, Department of Environmental Protection
Publication place: Hartford, Connecticut, USA
Publication date: 1996
Data type: vector digital data
Data location: http://www.ct.gov/deep
Other citation details:
The State of Connecticut, Department of Environmental Protection is the collector of the data (compiler), the creator and maintainer of the data layer (editor), and producer (publisher) of this information for use. Data compiled at 1:24,000 scale. 
Description
A characterization of the data, including its intended use and limitations.
Abstract:
Connecticut Dams is a 1:24,000-scale, point feature-based layer that displays the locations of dams in Connecticut that are owned and operated by individuals, businesses, corporations, water and electric utilities, local, state, and federal governments. Each dam is assigned a unique dam number. This information was compiled in 1996 and is based on dam safety information from the Inland Water Resources Division, Connecticut Department of Environmental Protection. The dams were mapped on 7½ Minute U.S. Geological Survey topographic quadrangle maps and digitized at 1:24,000 scale.

Attributes include dam number and name, dam hazard classification, ownership type, town name and number, and major, regional and subregional basin numbers.  This layer does not include all dams in Connecticut and has not been updated since its creation in 1996.   
Purpose:
Connecticut Dams is a 1:24,000 scale spatial data developed for use by the Dam Safety Section of the Inland Water Resources Division, Bureau of Water Protection and Land Reuse, Department of Environmental Protection, State of Connecticut. The Dam Safety Section of the Inland Water Resources Division is charged with the responsibility for administration and enforcement of Connecticut's dam safety laws. The existing statutes require that permits be obtained to construct, repair or alter dams, dikes or similar structures and that existing dams, dikes and similar structures be registered and periodically inspected to assure that their continued operation and use does not constitute a hazard to life, health or property. The dam safety statutes are codified in Section 22a-401 through 22a-411 inclusive of the Connecticut General Statutes. Sections 22a-409-1 and 22a-409-2 of the Regulations of Connecticut State Agencies, have been enacted which govern the registration, classification, and inspection of dams. The Connecticut Dams data depict the locations of dams throughout the state of Connecticut. The information may be dated in some instances and is best used in conjunction with other 1:24,000 scale data such as hydrography, drainage basins, and political boundaries. Attribute information includes a unique dam number and dam hazard classification that rates the potential hazard to life and property as defined by Connecticut State Statute (Section 22a-409-1d), in the event of a dam breach. This information is not intended to be used or printed at map scales greater or more detailed than 1:24,000 scale (1 in. = 2,000 ft.).
Supplemental information:
For additional information, refer to the Dam Safety Program at the Connecticut Department of Environmental Protection found on website  http://www.ct.gov/dep/dams. 
Dataset credit:
James Bogar from the Natural Resources Center, DEP originally mapped dam locations at 1:24,000 scale by compiling information primarily available from the Dam Safety program, Inland Water Resources Division, Bureau of Water Protection and Land Reuse, DEP. Tom Nosal and Ann Kuzyk, also from DEP, digitized the maps compiled by James Bogar to create the first statewide digital spatial dataset of Connecticut dams.
Language of dataset: en
Point Of Contact
Contact information for the individual or organization that is knowledgeable about the data.
Organization: Inland Water Resources Division, Bureau of Water Protecftion and Land Reuse, Department of Environmental Protection, State of Connecticut
Phone: 860-424-3706
Email: dep.gisdata@ct.gov
Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106-5127
Country: USA
Data Type
How the data are represented, formatted and maintained by the data producing organization.
File or table name: depgis.DEP.DAM
Data type: vector digital data
Data format: SDE Feature Class
Native dataset environment: These data are maintained by the State of Connecticut using ArcGIS software developed by Environmental Systems Research Institute (ESRI) in a Microsoft Windows operating system environment.
Time Period of Data
Time period(s) for which the data corresponds to the currentness reference.
Date: 1996
Currentness reference:
publication date
Status
The state of and maintenance information for the data.
Data status: Complete (compiled in 1996)
Update frequency: None planned (and may be out date, depending on dam)
Key Words
Words or phrases that summarize certain aspects of the data.
Theme:
Keywords: environment, inlandWaters, utilitiesCommunication
Keyword thesaurus: ISO 19115 Topic Category
Theme:
Keywords: dam, impoundment
Keyword thesaurus: None
Place:
Keywords: Connecticut, CT
Keyword thesaurus: U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.
Place:
Keywords: United States of America, USA
Keyword thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Technology.
Data Access Constraints
Restrictions and legal prerequisites for accessing or using the data after access is granted.
Access constraints:
None. The data is in the public domain and may be redistributed.
Use constraints:
No restrictions or legal prerequisites for using the data. The data is suitable for use at appropriate scale, and is not intended for maps printed at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet).  Although this data set  has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata. When printing this data on a map or using it in a software application, analysis, or report, please acknowledge the State of Connecticut, Department of Environmental Protection as the source for this information. For example, include the following data source description when printing this layer on a map: Dams - From the Connecticut Dams layer, compiled and published by CT DEP. Source map scale is 1:24,000.
+ Graphic Example
Browse Graphic
Graphic illustration of the data.
Browse graphic 1
Open - Full view of dams in Connecticut.
Graphic Image

Browse graphic 2
Open - Detail view of dams in Connecticut.
Graphic Image

Browse graphic 3
Open - Full view of Dams, Classified according to hazard level.
Graphic Image

Browse graphic 4
Open - Detail view of Dams, Classified according to hazard level.
Graphic Image
+ Spatial Reference Information
Horizontal Coordinate System
Reference system from which linear or angular quantities are measured and assigned to the position that a point occupies.
Projected coordinate system:
Name: NAD 1983 StatePlane Connecticut FIPS 0600 Feet
Map units: survey feet
Geographic coordinate system:
Name: GCS North American 1983
Coordinate System Details
Map projection
Map projection name: Lambert Conformal Conic
Standard parallel: 41.200000
Standard parallel: 41.866667
Longitude of central meridian: -72.750000
Latitude of projection origin: 40.833333
False easting: 999999.999996
False northing: 499999.999998
Planar Coordinate Information
Planar coordinate encoding method: coordinate pair
Coordinate representation:
Abscissa resolution: 0.000250
Ordinate resolution: 0.000250
Planar distance units: survey feet
Geodetic model
Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222
Vertical Coordinate System
Reference system from which vertical distances (altitudes or depths) are measured.
Altitude system definition:
Altitude resolution: 1.000000
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates
Spatial Domain
The geographic areal domain of the data that describes the western, eastern, northern, and southern geographic limits of data coverage.
Bounding Coordinates
In Projected or local coordinates
NAD 1983 StatePlane Connecticut FIPS 0600 Feet
BoundaryCoordinate
Left732153.000000 (survey feet)
Right1261873.250000 (survey feet)
Top942026.500000 (survey feet)
Bottom570025.938000 (survey feet)
In Unprojected coordinates (geographic)
GCS North American 1983
BoundaryCoordinate
West-73.736037 (longitude)
East-71.785953 (longitude)
North42.046431 (latitude)
South41.021394 (latitude)
+ Data Structure and Attribute Information
Overview
Summary of the information content of the data, including other references to complete descriptions of entity types, attributes, and attribute values for the data.
Entity and attribute overview:
Includes Dam features such as dam number and name, hazard classification, type of ownership, town name, town number, USGS topo quadrangle number, and major, regional and subregional basin numbers.  Use the DAM_NO to uniquely identify features. Use the dam hazard (DAM_HAZ) attribute to symbolize features by potential hazard on a map.  Use the OWNER attribute to symbolize features by type of ownership (private, public, state, etc.)
Direct spatial reference method: Vector
Indirect spatial reference method: State of Connecticut, United States of America
Attributes of Connecticut Dams
Detailed descriptions of entity type, attributes, and attribute values for the data.
Name: depgis.DEP.DAM
Type of object: Feature Class
Geometry type: Point
Number of records: 3646
Description:
Dam locations represented as point features.
Source:
State of Connecticut, Department of Environmental Protection
Attributes
OBJECTID
Definition:
Internal feature number.
Alias: OBJECTID Type: OID Width: 4 Precision: 10 Scale: 0
Attribute values: Sequential unique whole numbers that are automatically generated.
Attribute definition source:
ESRI
SYMBOL
Definition:
Symbolset Code - A field used by ArcInfo Workstion software to symbolize the dams.This field is obsolete and should be eventually be removed from the attribute table in the event the Dam database model is revised in the future.
Alias: SYMBOL Type: SmallInteger Width: 2 Precision: 5 Scale: 0
Attribute domain values
ValueDefinition
>0
Numbers
Attribute definition source:
State of Connecticut, Department of Environmental Protection
DAM_NO
Definition:
Unique identification number of feature.
Alias: DAM_NO Type: Integer Width: 4 Precision: 10 Scale: 0
Attribute domain values
ValueDefinition
>0
Number
Attribute definition source:
State of Connecticut, Department of Environmental Protection
DAM_HAZ
Definition:
Hazard Classification of dam.
Alias: DAM_HAZ Type: String Width: 2 Precision: 0 Scale: 0
Attribute domain values
ValueDefinition
AA
Negligible hazard potential
Definition Source:
State of Connecticut, Department of Environmental Protection
A
Low hazard potential 
Definition Source:
State of Connecticut, Department of Environmental Protection
BB
Moderate hazard potential
Definition Source:
State of Connecticut, Department of Environmental Protection
B
Significant hazard potential
Definition Source:
State of Connecticut, Department of Environmental Protection
C
High hazard potential
Definition Source:
State of Connecticut, Department of Environmental Protection
Attribute definition source:
State of Connecticut, Department of Environmental Protection
DAM_NAME
Definition:
Name of dam.
Alias: DAM_NAME Type: String Width: 50 Precision: 0 Scale: 0
Attribute values: Text value
Attribute definition source:
State of Connecticut, Department of Environmental Protection
QUAD_NO
Definition:
Quadrangle Number - An ID number designated by the State of Connecticut, Department of Environmental Protection, Natural Resources Center in the 1980's to uniquely identify individual quadrangle maps. This value indicates the USGS topographic quadrangle the dam is located on.
Alias: QUAD_NO Type: SmallInteger Width: 2 Precision: 5 Scale: 0
Attribute values: Numeric value. Quadrangle maps published by the USGS that cover the Connecticut mainland and coastal area are assigned numeric values ranging from 1-116. Other quadrangle areas that encompass the waters of Connecticut in Long Island Sound are assigned numeric values range from 1213 to 1218, 1310 to 1313, and 1407 to 1408.
Attribute definition source:
State of Connecticut, Department of Environmental Protection
TOWN_NO
Definition:
Town Number - ID number for the Connecticut Town (municipality), based on the Town Codes issued by the State of Connecticut, Office of the State Controller, which range from 1 to 169. This value indicates the town the dam point feature is located in.
Alias: TOWN_NO Type: SmallInteger Width: 2 Precision: 5 Scale: 0
Attribute values: Numeric value ranging from 1 to 169.
Attribute definition source:
State of Connecticut, Office of the State Controller
TOWN
Definition:
 Town Name - Text values that correspond to numeric TOWN_NO attribute values. TOWN is the English language equivalent of (decodes) the TOWN_NO field.
Alias: TOWN Type: String Width: 16 Precision: 0 Scale: 0
Attribute values: Text value (town name).
Attribute definition source:
State of Connecticut, Office of the State Controller
OWNER
Definition:
Type of Ownership of Dam.
Alias: OWNER Type: String Width: 1 Precision: 0 Scale: 0
Attribute domain values
ValueDefinition
D
Owned by CT DEP
F
Federal government owned
L
Local (municipal) government owned
P
Privately owned
S
State goverment other than CT DEP owned
U
Utility owned
(blank)
meaning of blank field value is uknown
Attribute definition source:
State of Connecticut, Department of Environmental Protection
PARADOX
Definition:
Paradox database flag - A field used to flag whether information for a dam is also originated from and is available in an associated database developed with Paradox software.  This is an obsolete attribute and should be removed from the attribute table in the event the Dam database model is revised in the future.
Alias: PARADOX Type: String Width: 1 Precision: 0 Scale: 0
Attribute domain values
ValueDefinition
Y
Yes, entered into database
(blank)
meaning of blank field value is uknown
Attribute definition source:
State of Connecticut, Department of Environmental Protection
SBAS_NO
Definition:
Subregional Drainage Basin Number - Identifies the Subregional drainage basin the dam is located in. The first digit corresponds to the Major basin number (MBAS_NO) and the first 2 digits represent the Regional basin number (RBAS_NO). All Subregional basins in the same Major and Regional basin have the same first and first 2 digits, respectively. A Subregional drainage basin number ending in "00" defines the main-stem basin for the corresponding Regional drainage basin. For example, Subregional basin 4300 is the main-stem basin for Regional basin 43. These main-stem Subregional basins are usually named after the corresponding Regional basin.
Alias: SBAS_NO Type: SmallInteger Width: 2 Precision: 5 Scale: 0
Attribute definition source:
State of Connecticut, Department of Environmental Protection
RBAS_NO
Definition:
Regional Drainage Basin Number - Identifies the regional drainage basin the dam is located in. The first digit corresponds to the Major basin number (MBAS_NO). All Regional basins in the same Major basin have the same first digit. A Regional drainage basin number ending in "0" defines the greater main-stem basin for the corresponding Major drainage basin. For example, Regional basin 40 is the main-stem basin for Major basin 4. These main-stem Regional basins are usually named after the corresponding Major basin.
Alias: RBAS_NO Type: SmallInteger Width: 2 Precision: 5 Scale: 0
Attribute values: Number
Attribute definition source:
State of Connecticut, Department of Environmental Protection
MBAS_NO
Definition:
Major Drainage Basin Number - Identifies the major drainage basin the dam is located in. There are 8 Major basins in Connecticut.
Alias: MBAS_NO Type: SmallInteger Width: 2 Precision: 5 Scale: 0
Attribute values: Number
Attribute definition source:
State of Connecticut, Department of Environmental Protection
X
Definition:
X Coordinate of dam in CT state plane feet, NAD 83 - This data field is no longer necessary and should be removed from the attribute table in the event the Dam database model is revised in the future.
Alias: X Type: Integer Width: 4 Precision: 10 Scale: 0
Attribute values: Calculated number based on latitude.
Attribute definition source:
State of Connecticut, Department of Environmental Protection
Y
Definition:
Y Coordinate of dam in CT state plane feet, NAD 83 - This data field is no longer necessary and should be removed from the attribute table in the event the Dam database model is revised in the future.
Alias: Y Type: Integer Width: 4 Precision: 10 Scale: 0
Attribute values: Calculated number based on longitude.
Attribute definition source:
State of Connecticut, Department of Environmental Protection
SHAPE
Definition:
Feature geometry.
Alias: Shape Type: Geometry Width: 4 Precision: 0 Scale: 0
Attribute values: Coordinates defining the features.
Attribute definition source:
ESRI
ESRI Feature Description
Description of spatial objects in the data using the Environmental Systems Research Institute (ESRI) terminology.
Environmental Systems Research Institute (ESRI) terms
depgis.DEP.DAM
ESRI feature type: Simple
Geometry type: Point
Topology: FALSE
Feature count: 3646
Spatial index: TRUE
Linear referencing: FALSE
SDTS Feature Description
Description of point and vector spatial objects in the data using the Spatial Data Transfer Standards (SDTS) terminology.
Spatial data transfer standard (SDTS) terms
depgis.DEP.DAM
Type: Entity point
Count: 3646
+ Data Quality and Accuracy Information
General
Information about the fidelity of relationships, data quality and accuracy tests, omissions, selection criteria, generalization, and definitions used to derive the data.
Logical consistency report:
Point features conform to the following topological rules. Points are single part. There are no duplicate points. Points do not overlap. Establishment of logical consistency was performed by the State of Connecticut, Department of Environmental Protection using ESRI ArcGIS software to manually create and control feature topology in originally in ArcInfo coverage format. No automated procedures or tests were performed to guarantee desired topology other than visual inspection.
Completeness report:
The completeness of the data reflects the feature content of the data sources, which include the dam safety program records and maps on file at the Connecticut Department of Environmental Protection in 1996.  This layer is complete in the sense that it accurately reflects the information available at the time the State of Connecticut, Department of Environmental Protection initially created the Dam layer (1996). However, it is not a complete compilation relative of dams in existence today.
Attribute Accuracy
Accuracy of the identification of data entities, features and assignment of attribute values.
Attribute accuracy report:
The Connecticut Dams layer retains the feature types and information identified by the State of Connecticut, Department of Environmental Protection and obtained from the Dam Safety Program database.  Values are within defined domains, but attributes may not have correct or valid values. Information may be incorrect or out of date. Accuracy check of attribute data is unknown.
Positional Accuracy
Accuracy of the positional aspects of the data.
Horizontal accuracy report:
The horizontal positional accuracy of this data is no better than the United States National Map Accuracy Standards for 1:24,000 scale maps. According to this standard, not more than 10 percent of the locations tested are to be in error by more than 1/50 inch (40 feet) measured on the publication scale of a USGS 7.5 minute topographic quadrangle map.  Point features may not be accurately positioned because the locations were interpolated relative to features on USGS 7.5 minute topographic quadrangle maps such as dams, waterbodies, roads, trails, buildings, and elevation contours.
+ Data Source and Process Information
Data Sources
Information about the source data used to construct or derive the data.
Data source information
Source 1 - DEP Dam Safety Program Records
Title: DEP Dam Safety Program Records
Originators: State of Connecticut, Department of Environmental Protection
Publication date: Unpublished Material
Data type: map
Map scale denominator: unknown
Media: database records and maps
Source contribution:
This data source refers to the original  dam safety records, files, and maps maintained by the Dam Safety program, Inland Water Resources Division, CT Department of Environmental Protection.
Date: 1996
Currentness reference:
publication date
Source 2 - USGS Topographic Quadrangle Maps
Title: USGS Topographic Quadrangle Maps
Originators: United States Geological Survey
Publisher: US Geological Survey
Publication place: Reston Virginia
Publication date: varies
Data type: map
Map scale denominator: 24000
Media: Maps
Source contribution:
This data source refers to a set of 1:24,000-scale 7.5 Minute USGS Topographic Quadrangle maps used as mapping base for locating dams on a set of corresponding Mylar overlays. Includes 116 USGS topographic quadrangle maps.
Beginning date: 1969
Ending date: 1984
Currentness reference:
publication date
Source 3 - DEP Dam Mylars
Title: Dam Mylar Overlay
Originators: State of Connecticut, Department of Environmental Protection
Publisher: State of Connecticut
Publication date: 1996
Data type: map
Map scale denominator: 24000
Media: Mylar overlay
Source contribution:
Point locations shown on these mylars were digitized.  Includes 116 Mylay overlays, one for each 1:24,000-scale 7.5 Minute USGS topographic quadrangle map.
Date: 1996
Currentness reference:
publication date
Source 4 - Connecticut Dams ArcInfo Coverage
Title: Connecticut Dams in ArcInfo Coverage format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams in ESRI ArcInfo coverage format initially created in 1996.
Date: 1996
Currentness reference:
publication date
Source 5 - Connecticut Dams Shapefile
Title: Connecticut Dams in Shapefile format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams converted to ESRI Shapefile format in 2000.
Date: 1996
Currentness reference:
publication date
Source 6 - Connecticut Dams Geodatabase Feature Class
Title: Connecticut Dams in Geodatabase Feature Class format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Data location: http://www.ct.gov/deep
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams converted to ESRI Geodatabase feature class format in 2005
Date: 1996
Currentness reference:
publication date
Process Steps
Information about events, parameters, tolerances and techniques applied to construct or derive the data.
Process step information
Process Step 1
Process description:
A separate Mylar overlay was prepared and registered to each USGS topographic quadrangle map. At 1:24,000 scale, a point location for each dam located on the quadrangle map was plotted on the Mylar overlay and labeled with the corresponding dam number, the unique identifier, and dam name. Includes 116 Mylar overlays, one for each 7.5 minute USGS topographic quadrangle area in Connecticut
Organization: State of Connecticut, Department of Environmental Protection
Person: James Bogar
Phone: 860-424-3540
Address type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106
Country: USA
Process date: Unknown
Data Source used
Source 1 - DEP Dam Safety Program Records
Title: DEP Dam Safety Program Records
Originators: State of Connecticut, Department of Environmental Protection
Publication date: Unpublished Material
Data type: map
Map scale denominator: unknown
Media: database records and maps
Source contribution:
This data source refers to the original  dam safety records, files, and maps maintained by the Dam Safety program, Inland Water Resources Division, CT Department of Environmental Protection.
Date: 1996
Currentness reference:
publication date
Source 2 - USGS Topographic Quadrangle Maps
Title: USGS Topographic Quadrangle Maps
Originators: United States Geological Survey
Publisher: US Geological Survey
Publication place: Reston Virginia
Publication date: varies
Data type: map
Map scale denominator: 24000
Media: Maps
Source contribution:
This data source refers to a set of 1:24,000-scale 7.5 Minute USGS Topographic Quadrangle maps used as mapping base for locating dams on a set of corresponding Mylar overlays. Includes 116 USGS topographic quadrangle maps.
Beginning date: 1969
Ending date: 1984
Currentness reference:
publication date
Data Source produced
Source 3 - DEP Dam Mylars
Title: Dam Mylar Overlay
Originators: State of Connecticut, Department of Environmental Protection
Publisher: State of Connecticut
Publication date: 1996
Data type: map
Map scale denominator: 24000
Media: Mylar overlay
Source contribution:
Point locations shown on these mylars were digitized.  Includes 116 Mylay overlays, one for each 1:24,000-scale 7.5 Minute USGS topographic quadrangle map.
Date: 1996
Currentness reference:
publication date
Process Step 2
Process description:
Feature digitizing and attribution (digitizing tablet method) - Using ESRI ArcInfo Workstation software, point features were digitized by registering the source map (Mylars) to the digitizing tablet and using the crosshairs of the digitizer's mouse to manually capture the geometry (location) of features drafted on the map. The corners of the USGS 7.5 minute topographic quadrangle maps are used as registration points and are depicted on the source map. The source map was registered to the digitizing tablet by digitizing (entering) the locations of four quadrangle corner registration points shown on the map. ArcInfo software compared the values of the digitized coordinates with the actual (true) values for the quadrangle corner (tic) features. The Root Mean Square (RMS) error generated by the ArcInfo software indicated the amount of error involved in transforming coordinates from the registered map to the digital layer. RMS errors higher than 0.004 were not acceptable and required re-registering the source map by digitizing the tic locations again. With a correct registration, individual features were manually digitized off the source map and assigned their unique DAM_NO values. Feature location and attribute accuracy was visually checked and inspected by symbolizing and labeling features according to attribute value on the computer screen, comparing it to the original source data. Dam name and dam hazard information was also manually entered. Town, major, regional, and subregional basin numbers were assigned using the ArcInfo Identity command in conjunction with town and basin layers.
Organization: State of Connecticut, Department of Environmental Protection
Person: Tom Nosal, Ann Kuzyk
Phone: 860-424-3540
Address type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106
Country: USA
Process date: 1996
Process software and version: ArcInfo Workstation 7
Data Source used
Source 3 - DEP Dam Mylars
Title: Dam Mylar Overlay
Originators: State of Connecticut, Department of Environmental Protection
Publisher: State of Connecticut
Publication date: 1996
Data type: map
Map scale denominator: 24000
Media: Mylar overlay
Source contribution:
Point locations shown on these mylars were digitized.  Includes 116 Mylay overlays, one for each 1:24,000-scale 7.5 Minute USGS topographic quadrangle map.
Date: 1996
Currentness reference:
publication date
Data Source produced
Source 4 - Connecticut Dams ArcInfo Coverage
Title: Connecticut Dams in ArcInfo Coverage format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams in ESRI ArcInfo coverage format initially created in 1996.
Date: 1996
Currentness reference:
publication date
Process Step 3
Process description:
Convert to Shapfile format - Converted all point features from ArcInfo coverage to shapefile format and omitted the following standard ArcInfo coverage items: AREA, PERIMETER, {cover}-ID, and {cover}#.
Organization: State of Connecticut, Department of Environmental Protection
Person: Howie Sternberg
Phone: 860-424-3540
Address type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106
Country: USA
Process date: 2000
Process software and version: ArcGIS Desktop 8
Data Source used
Source 4 - Connecticut Dams ArcInfo Coverage
Title: Connecticut Dams in ArcInfo Coverage format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams in ESRI ArcInfo coverage format initially created in 1996.
Date: 1996
Currentness reference:
publication date
Data Source produced
Source 5 - Connecticut Dams Shapefile
Title: Connecticut Dams in Shapefile format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams converted to ESRI Shapefile format in 2000.
Date: 1996
Currentness reference:
publication date
Process Step 4
Process description:
Convert to Geodatabase Feature Class format - Connecticut Dams Shapefile was converted to geodatabase format feature classe according to the following steps: defined new geodatabase feature class, imported the spatial reference, defined attribute definitions, loaded features from shapefile, and created metadata.
Organization: State of Connecticut, Department of Environmental Protection
Person: Howie Sternberg
Phone: 860-424-3540
Address type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106
Country: USA
Process date: 2005
Process software and version: ArcGIS Desktop 9
Data Source used
Source 5 - Connecticut Dams Shapefile
Title: Connecticut Dams in Shapefile format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams converted to ESRI Shapefile format in 2000.
Date: 1996
Currentness reference:
publication date
Data Source produced
Source 6 - Connecticut Dams Geodatabase Feature Class
Title: Connecticut Dams in Geodatabase Feature Class format
Originators: State of Connecticut, Department of Environmental Protection
Publication date: 1996
Data type: vector digital data
Data location: http://www.ct.gov/deep
Map scale denominator: 24000
Media: disc
Source contribution:
This is a statewide dataset of Connecticut dams converted to ESRI Geodatabase feature class format in 2005
Date: 1996
Currentness reference:
publication date
+ Data Distribution Information
General
Description of the data known by the party from whom the data may be obtained, liability of party distributing data, and technical capabilities required to use the data.
Resource description:
Connecticut Dams
Distribution liability:
Although this data set  has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials.  The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata.
Technical prerequisites:
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
Distribution Point of Contact
Contact information for the individual or organization distributing the data.
Organization: State of Connecticut, Department of Enviromental Protection
Phone: 860-424-3540
Fax: 860-424-4058
Email: dep.gisdata@ct.gov
Address type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106-5127
Country: USA
Standard Order Process
Common ways in which data may be obtained.
Digital form:
Format name: Shapefile, Feature Class
Format version number: ArcGIS
File decompression technique: Zip file
Digital transfer option:
Online option:
Computer information:
Network address:
Network resource name: http://www.ct.gov/deep
Fees: An online copy of the data may be accessed without charge.
Custom Order Process
Description of custom distribution services available.
Custom order process:
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
+ Metadata Reference
Metadata Date
Dates associated with creating, updating and reviewing the metadata.
Last updated: 20111216
Language of metadata: en
Metadata Point of Contact
Contact information for the individual or organization responsible for the metadata information.
Organization: State of Connecticut, Department of Environmental Protection
Person: Jacqueline Mickiewicz, Howie Sternberg
Phone: 860-424-3540
Fax: 860-424-4058
Email: dep.gisdata@ct.gov
Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical address
Address:
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106-5127
Country: USA
Metadata Standards
Description of the metadata standard used to document the data and reference to any additional extended profiles to the standard used by the metadata producer.
Standard name: FGDC Content Standards for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention: local time
Metadata profiles defining additonal information:
Profile: ESRI Metadata Profile
FGDC Plus Metadata Stylesheet
Stylesheet: FGDC Plus Stylesheet
File name: FGDC Plus.xsl
Version: 2.2
Description: This metadata is displayed using the FGDC Plus Stylesheet, which is an XSL template that can be used with ArcGIS software to display metadata. It displays metadata elements defined in the Content Standard for Digital Geospatial Metadata (CSDGM) - aka FGDC Standard, the ESRI Profile of CSDGM, the Biological Data Profile of CSDGM, and the Shoreline Data Profile of CSDGM. CSDGM is the US Federal Metadata standard. The Federal Geographic Data Committee originally adopted the CSDGM in 1994 and revised it in 1998. According to Executive Order 12096 all Federal agencies are ordered to use this standard to document geospatial data created as of January, 1995. The standard is often referred to as the FGDC Metadata Standard and has been implemented beyond the federal level with State and local governments adopting the metadata standard as well. The Biological Data Profile broadens the application of the CSDGM so that it is more easily applied to biological data that are not explicitly geographic (laboratory results, field notes, specimen collections, research reports) but can be associated with a geographic location. Includes taxonomical vocabulary. The Shoreline Data Profile addresses variability in the definition and mapping of shorelines by providing a standardized set of terms and data elements required to support metadata for shoreline and coastal data sets. The FGDC Plus Stylesheet includes the Dublin Core Metadata Element Set. It supports W3C DOM compatible browsers such as IE7, IE6, Netscape 7, and Mozilla Firefox. It is in the public domain and may be freely used, modified, and redistributed. It is provided "AS-IS" without warranty or technical support.
Instructions: On the top of the page, click on the title of the dataset to toggle opening and closing of all metadata content sections or click section links listed horizontally below the title to open individual sections. Click on a section name (e.g. Description) to open and close section content. Within a section, click on a item name (Status, Key Words, etc.) to open and close individual content items. By default, the Citation information within the Description section is always open for display.
Download: FGDC Plus Stylesheet is available from the ArcScripts downloads at www.esri.com.