Identification_Information: Citation: Citation_Information: Originator: Jim Weber, New Hampshire Department of Environmental Services, Dam Safety Engineer Publication_Date: 20220324 Title: Dam Inventory Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: Description: Abstract: This dataset provides the locations of registered dams in New Hampshire with basic data fields. Additional data fields are available and may be requested by contacting the DES Resource Point of Contact provided below. Purpose: This dataset shows the locations of all dams in New Hampshire registered with the New Hampshire Department of Environmental Services. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19200101 Ending_Date: 20220324 Currentness_Reference: The data are complete as of the publication date. Updates and/or changes to the layer are made continually. Status: Progress: Complete Maintenance_and_Update_Frequency: Annually Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -72.569479 East_Bounding_Coordinate: -70.715758 North_Bounding_Coordinate: 45.284693 South_Bounding_Coordinate: 42.699294 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: dam, dams, water, river, lake, surface water, drainage area Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: environment Place: Place_Keyword_Thesaurus: None Place_Keyword: New Hampshire, NH Access_Constraints: None Use_Constraints: User is required to read metadata completely before using the data. The information provided in this shapefile is a subset of spatial databases developed by NHDES. Development of these databases is an ongoing project. They may not contain all existing and potential sites, stations, or threats. NHDES is not responsible for the use or interpretation of this information, or for any inaccuracies in the site names, tax map and lot information, or locations. All information is subject to verification. These data are to be used for planning purposes only. Distribution is discouraged. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: New Hampshire Department of Environmental Services Contact_Person: Jim Weber Contact_Position: Dam Safety Engineer Contact_Address: Address_Type: mailing and physical Address: 29 Hazen Drive City: Concord State_or_Province: New Hampshire Postal_Code: 03302 Country: US Contact_Voice_Telephone: 603-271-8699 Contact_Electronic_Mail_Address: james.weber@des.nh.gov Data_Set_Credit: New Hampshire Department of Environmental Services Native_Data_Set_Environment: Version 6.2 (Build 9200); Esri ArcGIS 10.8.0.12790 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: point Point_and_Vector_Object_Count: 5238 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: NAD 1983 2011 StatePlane New Hampshire FIPS 2800 Ft US Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9999666666666667 Longitude_of_Central_Meridian: -71.66666666666667 Latitude_of_Projection_Origin: 42.5 False_Easting: 984250.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000000007286182768240225 Ordinate_Resolution: 0.000000007286182768240225 Planar_Distance_Units: foot_us Geographic: Geographic: Coordinate System: GCS NAD 1983 2011 Datum: D NAD 1983 2011 Prime Meridian: Greenwich Angular Unit: Degree Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: damsnh Entity_Type_Definition: NH Dam listing Entity_Type_Definition_Source: NHDES Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: DAM Attribute_Definition: NH Dam Identification Number Attribute_Definition_Source: NHDES Attribute: Attribute_Label: HAZCL Attribute_Definition: This is the hazard classification of the dam. The hazard classification is determined by a review of the downstream damages that would result from a failure of the dam. It is not based on the structural condition of the dam. Attribute_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: L Enumerated_Domain_Value_Definition: Low hazard Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NM Enumerated_Domain_Value_Definition: Non-menace Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: S Enumerated_Domain_Value_Definition: Significant hazard Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: H Enumerated_Domain_Value_Definition: High hazard Enumerated_Domain_Value_Definition_Source: NHDES Attribute: Attribute_Label: STATUS Attribute_Definition: Indicates the activity status of the dam. Attribute_Definition_Source: NHDES Attribute: Attribute_Label: USE Attribute_Definition: The main use of the dam. Attribute_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: F Enumerated_Domain_Value_Definition: Flood control Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: H Enumerated_Domain_Value_Definition: Hydro Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: L Enumerated_Domain_Value_Definition: Lagoon Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: R Enumerated_Domain_Value_Definition: Recreation Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: W Enumerated_Domain_Value_Definition: Water supply Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: D Enumerated_Domain_Value_Definition: Detention Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: M Enumerated_Domain_Value_Definition: Mill Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: C Enumerated_Domain_Value_Definition: Conservation/agriculture Enumerated_Domain_Value_Definition_Source: NHDES Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: P Enumerated_Domain_Value_Definition: Fire protection Enumerated_Domain_Value_Definition_Source: NHDES Attribute: Attribute_Label: TOWN Attribute_Definition: The town in which the dam is located Attribute_Definition_Source: NHDES Attribute: Attribute_Label: NAME Attribute_Definition: The common name of the dam Attribute_Definition_Source: NHDES Attribute: Attribute_Label: CNTY Attribute_Definition: NH county dam is located in Attribute_Definition_Source: NHDES Attribute: Attribute_Label: RIVER Attribute_Definition: River, stream or waterbody dam is located on Attribute_Definition_Source: NHDES Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of the dam in feet Attribute_Definition_Source: NHDES Attribute: Attribute_Label: IMPND Attribute_Definition: Size of the impoundment in acres Attribute_Definition_Source: NHDES Attribute: Attribute_Label: HEIGHT Attribute_Definition: The maximum height of the dam in feet Attribute_Definition_Source: NHDES Attribute: Attribute_Label: DAAC Attribute_Definition: Area of the drainage area in acres (AC) Attribute_Definition_Source: NHDES Attribute: Attribute_Label: NATDAMID Attribute_Definition: Army Corp of Engineers National Dam identification number Attribute_Definition_Source: ACOE Attribute: Attribute_Label: FERC Attribute_Definition: Federal Energy Regulation Commission (FERC) dam identification number Attribute_Definition_Source: FERC Attribute: Attribute_Label: DOWNER Attribute_Definition: Dam owner Attribute_Definition_Source: NHDES Attribute: Attribute_Label: LATITUDE Attribute_Definition: Latitude coordinates for the dam in decimal degrees Attribute_Definition_Source: NHDES Attribute: Attribute_Label: LONGITUDE Attribute_Definition: Longitude coordinates for the dam in decimal degrees Attribute_Definition_Source: NHDES Distribution_Information: Distribution_Liability: See access and use constraints information. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Transfer_Size: 0.140 Digital_Transfer_Option: Metadata_Reference_Information: Metadata_Date: 20220324 Metadata_Future_Review_Date: 20220324 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: New Hampshire Department of Environmental Services Contact_Person: Jim Weber Contact_Position: Dam Safety Engineer Contact_Address: Address_Type: mailing and physical Address: 29 Hazen Drive City: Concord State_or_Province: New Hampshire Postal_Code: 03302 Country: US Contact_Voice_Telephone: 603-271-8699 Contact_Electronic_Mail_Address: james.weber@des.nh.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time