{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "This dataset contains polygons representing planimetric bridge and tunnel entrances, created as part of the DC Geographic Information System (DC GIS) for the Office of the Chief Technology Officer (OCTO). These features were originally captured in 2015 and updated in 2017, 2019, 2021 and 2023.", "description": "

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 clear spans where deck is not visible. This includes all overpasses (bridges that carry traffic over roads or railroads) and underpasses. Outside edge of all overpasses delineated. Bridges overlap road polygons. Pedestrian bridges are not captured. Tunnel Entrances: Entire tunnels are not captured, but all entrances to a tunnel are captured as polygons illustrating the width of the tunnel. Polygons plotted around tunnel openings and any abutments or walls which identify the tunnel entrance. Hidden Bridges: Hidden bridges are features that run under other features such as other bridges, overpasses, or tunnels and are not fully visible in an aerial photograph. The locations are interpreted based on the information visible on either side of the bridge.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "summary": "This dataset contains polygons representing planimetric bridge and tunnel entrances, created as part of the DC Geographic Information System (DC GIS) for the Office of the Chief Technology Officer (OCTO). These features were originally captured in 2015 and updated in 2017, 2019, 2021 and 2023.", "title": "Bridge and Tunnel", "tags": [ "bridge", "District of Columbia", "OCTO", "overpass", "planimetrics", "tunnel", "underpass", "Washington DC", "dc" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 150000000, "maxScale": 5000, "spatialReference": "", "accessInformation": "Office of the Chief of Technology Officer", "licenseInfo": "