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Federal
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA 66 recent views
Department of the Interior —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
Federal
National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection 11 recent views
Department of the Interior —
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography... -
Federal
NOAA ENC Direct to GIS
National Oceanic and Atmospheric Administration, Department of Commerce —
NOAA's Electronic Navigational Charts (NOAA ENCs) have been developed to support the marine transportation infrastructure and coastal management. The NOAA ENCs are in... -
Federal
USGS Transportation Overlay Map Service from The National Map
U.S. Geological Survey, Department of the Interior —
The USGS Transportation service from The National Map (TNM) is based on TIGER/Line data provided through U.S. Census Bureau and road data from U.S. Forest Service.... -
University
GNIS: Man-made features/structures (2013)
Earth Data Analysis Center, University of New Mexico —
The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board... -
Federal
National Tunnel Inventory
Department of Transportation —
The National Tunnel Inventory dataset was compiled on June 15, 2023 and published on June 30, 2023 from the Federal Highway Administration (FHWA) and is part of the... -
Federal
National Tunnel Inventory Elements
Department of Transportation —
The National Tunnel Inventory Elements dataset was compiled on June 15, 2023 and published on June 30, 2023 from the Federal Highway Administration (FHWA) and is part... -
Hidden Bridges
District of Columbia —
Bridge and tunnel entrance. The dataset contains polygons representing planimetric bridge and tunnel entrances, created as part of the DC Geographic Information System... -
Bridge and Tunnel Entrances 2019
District of Columbia —
Bridge and Tunnel Entrance. The dataset contains polygons representing planimetric bridge and tunnel entrances, created as part of the DC Geographic Information System... -
Bridge and Tunnel Entrances 2005
District of Columbia —
Bridges and Tunnels. The dataset contains polygons representing planimetric bridges and tunnels, created as part of the DC Geographic Information System (DC GIS) for... -
Bridge and Tunnel Entrances 2010
District of Columbia —
Bridges and Tunnel. The dataset contains polygons representing planimetric bridge and tunnel entrances, created as part of the DC Geographic Information System (DC... -
Bridge and Tunnel Entrances 2008
District of Columbia —
Bridges and Tunnels. The dataset contains polygons representing planimetric Bridges and Tunnels, created as part of the DC Geographic Information System (DC GIS) for... -
Bridge and Tunnel Entrances 2015
District of Columbia —
Bridge and Tunnel Entrance. The dataset contains polygons representing planimetric bridge and tunnel entrances, created as part of the DC Geographic Information System... -
Bridge and Tunnel Entrances 2017
District of Columbia —
Bridge and Tunnel Entrance. The dataset contains polygons representing planimetric bridge and tunnel entrances, created as part of the DC Geographic Information System... -
Bridge and Tunnel Entrances 2021
District of Columbia —
Bridges: All bridges are digitized as polygons. Bridges carry roads or railroads over water. Outside edges of all bridges delineated. Also bridge deck locations or... -
Bridge and Tunnel Entrances
District of Columbia —
Bridges: All bridges are digitized as polygons. Bridges carry roads or railroads over water. Outside edges of all bridges delineated. Also bridge deck locations or...