Description: The Maine Dams dataset, maintained by the Maine Department of Environmental Protection (DEP) is a comprehensive spatial and tabular data base of dams, levees, impoundments, and barriers that are in and around Maine’s lakes, streams, and rivers. It includes both current and historical facilities. Spatial and tabular data will be updated on an ongoing basis. The Maine DEP Dams layers were created from various sources, including a historical dams dataset based on the Inventory of Dams on Maine Waterways (1973), the Maine Emergency Management Agency (MEMA) dams datasets, the Maine Stream Habitat Viewer (MSHV) dataset, and others. ID fields were created and maintained in order to cross-reference the DEP dataset with the National Inventory of Dams (NID), MEMA, Federal Energy Regulatory Commission (FERC) Projects. Additional fields have been added to indicate the status (present, removed, breached, etc.), the presence and types of fishways, and the FERC licensing status of dams. Point locations indicate the approximate location of dams, and may contain errors. The Dam_points layer has a companion layer, Dams_polygons which contains manually delineated outlines of dam structures. Fields:NAME: Commonly used or official dam namePOP_NAME: Alternate or popular dam nameNID_ID: National Inventory of Dams ID (https://nid.sec.usace.army.mil/#/)DEP_ID: Numeric ID field. Derived partially from 1973 Inventory of Maine Dams. Not fully populated.MEMA_ID: ID assigned to dams by MEMA (text field)MEMA_ID_NUM: ID assigned to dams by MEMA (integer field)FERC_ID: FERC Project Number (https://www.ferc.gov/licensing)FERC_PROJECT_NAME: FERC Project Name (https://www.ferc.gov/licensing)FERC_LICENSE_STATUS: Indicates whether a dam with a FERC_ID is an active or expired license, has an exemption, or has been removedStatus: Most recent known status of the physical structure of the damStatus notes: Comments on the source of the dam's status information, dates of removal, or other relevant informationFishway: Data from Maine Stream Habitat Viewer and other sources on the presence and type (if known) of a fish passage RIVER: Name of the River or waterbody on which the dam is locatedHUC8: 8-digit HUC ID (Watershed Boundary Dataset)HUC8 Name: Name of the HUC8 unit in which dam is locatedUniqueID: A unique numeric ID for each feature in the dams dataset (not fully populated)MSHV_ID: Maine Stream Habitat Viewer ID for dam/barrier (https://webapps2.cgis-solutions.com/MaineStreamViewer/)NOAA_ID: Legacy ID from NOAA dams dataset (location unknown)IFW_ID: Legacy ID from IF&W dams dataset (location unknown)
Service Item Id: a064cd69b3fe44f7a0614acdc2d1680c
Copyright Text: Maine Department of Environmental Protection, Maine Emergency Management Agency
Please contact Becky Schaffner (becky.schaffner@maine.gov) with questions.
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Description: The Maine Dams dataset, maintained by the Maine Department of Environmental Protection (DEP) is a comprehensive spatial and tabular data base of dams, levees, impoundments, and barriers that are in and around Maine’s lakes, streams, and rivers. It includes both current and historical facilities. Spatial and tabular data will be updated on an ongoing basis. The Maine DEP Dams layers were created from various sources, including a historical dams dataset based on the Inventory of Dams on Maine Waterways (1973), the Maine Emergency Management Agency (MEMA) dams datasets, the Maine Stream Habitat Viewer (MSHV) dataset, and others. ID fields were created and maintained in order to cross-reference the DEP dataset with the National Inventory of Dams (NID), MEMA, Federal Energy Regulatory Commission (FERC) Projects. Additional fields have been added to indicate the status (present, removed, breached, etc.), the presence and types of fishways, and the FERC licensing status of dams. Dam outlines were delineated manually using imagery, elevation, dam project diagrams, and other sources. They are approximate and only intended to indicate general size, location, and orientation. The Dam_polygons layer has a companion layer, Dams_points. Fields:NAME: Commonly used or official dam namePOP_NAME: Alternate or popular dam nameNID_ID: National Inventory of Dams ID (https://nid.sec.usace.army.mil/#/)DEP_ID: Numeric ID field. Derived partially from 1973 Inventory of Maine Dams. Not fully populated.MEMA_ID: ID assigned to dams by MEMA (text field)UniqueID: A unique numeric ID for each feature in the dams dataset (not fully populated)MSHV_ID: Maine Stream Habitat Viewer ID for dam/barrier (https://webapps2.cgis-solutions.com/MaineStreamViewer/)FERC_ID: FERC Project Number (https://www.ferc.gov/licensing)FERC_PROJECT_NAME: FERC Project Name (https://www.ferc.gov/licensing)FERC_LICENSE_STATUS: Indicates whether a dam with a FERC_ID is an active or expired license, has an exemption, or has been removedRIVER: Name of the River or waterbody on which the dam is locatedHUC8: 8-digit HUC ID (Watershed Boundary Dataset)HUC8 Name: Name of the HUC8 unit in which dam is locatedSTATUS: Most recent known status of the physical structure of the damSTATUS_COMMENTS: Comments on the source of the dam's status information, dates of removal, or other relevant informationMEDIA_LINKS: Miscellaneous links to outside sources with information on dam removal projects
Service Item Id: a064cd69b3fe44f7a0614acdc2d1680c
Copyright Text: Maine Department of Environmental Protection, Maine Emergency Management Agency
Please contact Becky Schaffner (becky.schaffner@maine.gov) with questions.
Description: The Maine Dams dataset, maintained by the Maine Department of Environmental Protection (DEP) is a comprehensive spatial and tabular data base of dams, levees, impoundments, and barriers that are in and around Maine’s lakes, streams, and rivers. It includes both current and historical facilities. Spatial and tabular data will be updated on an ongoing basis. The Maine DEP Dams layers were created from various sources, including a historical dams dataset based on the Inventory of Dams on Maine Waterways (1973), the Maine Emergency Management Agency (MEMA) dams datasets, the Maine Stream Habitat Viewer (MSHV) dataset, and others. ID fields were created and maintained in order to cross-reference the DEP dataset with the National Inventory of Dams (NID), MEMA, Federal Energy Regulatory Commission (FERC) Projects. Additional fields have been added to indicate the status (present, removed, breached, etc.), the presence and types of fishways, and the FERC licensing status of dams. The Dam Impoundments layer is derived from a variety of sources including FERC project documents, the National Hydrography Dataset (NHD), and aerial imagery. They are approximate and not intended for engineering or legal use. Fields:FERC_ID: FERC Project Number (https://www.ferc.gov/licensing)NID_ID: National Inventory of Dams ID (https://nid.sec.usace.army.mil/#/)DEP_ID: Numeric ID field. Derived partially from 1973 Inventory of Maine Dams. Not fully populated.MEMA_ID: ID assigned to dams by MEMA (text field)FERC_DAM_NAME: FERC Project Name (https://www.ferc.gov/licensing)NAME: Commonly used or official dam nameGNIS_NAME: Officially recognized Federal name of waterbody from Geographic Names Information System (GNIS)FERC_LICENSE_STATUS: Indicates whether a dam with a FERC_ID is an active or expired license, has an exemption, or has been removedHUC8: 8-digit HUC ID (Watershed Boundary Dataset)STATUS: Most recent known status of the physical structure of the damSTATUS_COMMENTS: Comments on the source of the dam's status information, dates of removal, or other relevant informationLAYER: Source of impoundment data (if known)
Service Item Id: a064cd69b3fe44f7a0614acdc2d1680c
Copyright Text: Maine Department of Environmental Protection, Maine Emergency Management Agency
Please contact Becky Schaffner (becky.schaffner@maine.gov) with questions.