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Layer: Barriers (ID:66)

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Name: Barriers

Display Field: Barrier_Name

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: This dataset represents dam and road stream crossings in the northeastern United States (ME, NH, VT, MA, CT, RI, NY, PA, NJ, DE, MD, VA, WV, DC). This data was complied as part of the North Atlantic Aquatic Connectivity Collaborative (NAACC) for the 2016 version of the Northeast Aquatic Connectivity anlaysis (http://maps.freshwaternetwork.org/northeast). The road-stream crossing data in this dataset compiled by the NAACC (https://streamcontinuity.org/) and its contributors. Dam data was compiled for the original Northeast Aquatic Connectivity study (http://rcngrants.org/content/northeast-aquatic-connectivity) and revised based on input from the Northeast Aquatic Connectivity project workgroup, updates from state dam databases, and removals from American River's dam removal database (https://www.americanrivers.org/threats-solutions/restoring-damaged-rivers/dam-removal-map). Both road-stream crossings and dams were spatially linked to flowlines in the USGS National Hydrography Plus (NHD-Plus) v2 1:100,000 stream dataset. These barriers form the primary input dataset for the 2016 version of the Northeast Aquatic Connectvitiy analysis. (http://maps.freshwaternetwork.org/northeast). To this barrier dataset, 38 ecologically-relevant metrics were calculated and used in the barrier prioritization.

Copyright Text: Road - stream crossing data from the North Atlantic Aquatic Connectivity Collaborative database: http://streamcontinuity.org. Aquatic passability scores and cold water restoration scores for road-stream crossings are from the UMass Critical Linkages project. (http://www.umasscaps.org/applications/critical-linkages.html. Natural barrier data obtained from the USGS GNIS database, the World Waterfall Database (http://www.worldwaterfalldatabase.com/) and Daniel Wieferich, USGS. Dam data for the Northeastern United States compiled from multiple state and federal sources by The Nature Conservancy and edited for use in the Northeast Aquatic Connectivity project (http://maps.freshwaternetwork.org/northeast). Original data for each state: CT: Connecticut DEP, Inland Water Resources Div DE: Delaware Dams: DNREC; MA: Massachusetts Department of Fish and Game, Division of Ecological Restoration (DER) based on modified and updated datasets from the Massachusetts Department of Conservation and Recreation http://www.mass.gov/mgis/dams.htm, Office of Dam Safety. MD: MD DNR ME: Army Corp of Engineers (USACE), Maine Emergency Management Agency (MEMA), Maine Department of Environmental Protection (MEDEP)(comp., ed.), Maine Office of Geographic Information Systems (comp., ed.) http://www.maine.gov/megis/catalog/shps/state/impoundss.zip NH: NH DES Dam Bureau NJ: NJDEP - Bureau of Dam Safety and Flood Control NY: NYS Department of Environmental Conservation http://gis.ny.gov/gisdata/inventories/details.cfm?DSID=1130; USGS Great Lakes Science Center PA: Division of Dam Safety, Department of Environmental Protection; PA Fish and Boat Commission, Ben Lorson RI: RIGIS, 2014. Dams; dams12. Rhode Island Geographic Information System (RIGIS) Data Distribution System, URL: http://www.edc.uri.edu/rigis, Environmental Data Center, University of Rhode Island, Kingston, Rhode Island (last date accessed: 10 September 2014). VA: VA Dept. of Game & Inland Fisheries VT: Vermont Agency of Natural Resources, Department of Environmental Conservation WV: WV DNR: Wildlife Diversity and Technical Support Units; WV Non-coal dams, DMR Dams, NID dams: WV State GIS Data Clearinghouse: http://wvgis.wvu.edu/data/data.php US Army Corps' National Inventory of Dams (nid.usace.army.mil) USGS Geographic Names Information System (GNIS)

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Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

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Has Attachments: false

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

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Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 12/5/2023 5:45:03 PM

Schema Last Edit Date: 12/5/2023 5:45:03 PM

Data Last Edit Date: 12/5/2023 5:45:03 PM

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