Bridge And Tunnel Entrances by US Government | Demographics and Population Studies

About this Dataset

Bridge And Tunnel Entrances

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.
Organization: District of Columbia
Last updated: 2024-04-30T18:34:40.947194
Tags: bridge, currentplanimetrics, dc, district-of-columbia, octo, overpass, planimetrics, tunnel, underpass, washington-dc

Tables

Table 1

@usgov.district_of_columbia_bridge_and_tunnel_entrances.table_1

12.47 KB
564 rows
7 columns


CREATE TABLE table_1 (
  "featurecode" BIGINT,
  "description" VARCHAR,
  "captureaction" VARCHAR,
  "capturedate" TIMESTAMP,
  "bridge_id" VARCHAR,
  "gis_id" VARCHAR,
  "objectid" BIGINT
);