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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... -
University
GNIS: Oilfields, Mines, Dams, Towers, Man-made structures
Earth Data Analysis Center, University of New Mexico —
The Geographic Names Information System (GNIS) actively seeks data from and partnerships with Government agencies at all levels and other interested organizations.... -
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... -
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...