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Trinity River COMMON VISION Program

Digital Files and Contents
Trinity River Corridor Engineering Mapping

The following features are contained within the Trinity River Mapping data set. The North Central Texas Council of Governments maintains copies of the information in Arc/info, Intergraph, and DXF format. Most of the GIS applications conducted by NCTCOG have utilized the Arc/Info Data Version, so descriptions of the individual data files have focused upon the Arc/Info Structure, particularly concerning the database and code structure.

Quick Overview of Digital Information Available in the Trinity River Corridor Engineering Mapping Database

FILE: Structures: Building Outlines (BO)

Description: Footprints of all buildings larger than 250 square foot roof area.

Contents:

  • Buildings
  • Ruins
  • Trailer Homes
  • Areas Under Construction

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FILE: Topography: Contour Lines (CL)

Description: Topographical information at 2 foot contour intervals.

Contents:

  • Index (10-foot) Contours
  • Intermediate (2-foot) Contours

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FILE: Drainage: Drainage Structures (DS)

Description: Man-made linear features.

Contents:

  • Man-Made Drainage Channels
  • Flood Gates
  • Dams
  • Levees
  • Flow Arrows
  • Aerial Pipelines
  • Levee Profiles
  • Concrete Drains
  • Culverts
  • Headwalls
  • Catch Basins
  • Underground Pipes
  • Other Drainage Structures

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FILE: Electric Utilities (EU)

Description: Linear and point features.

Contents:

  • Transmission Lines
  • Misc. Utility Lines Substation
  • Utility Poles
  • Electric Transmission Towers
  • Television Radio Towers

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FILE: Hydrology: Digital Hydrology (HL)

Description: Edge of banks of larger hydrologic features, centerlines of smaller hydrologic features.

Contents:

  • River/Stream Shorelines Waterfall
  • Lakes
  • March/Swamp
  • Intermittent Stream Centerline
  • Pond
  • Flow Arrows

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FILE: Map Control (MC)

Description: Existing and New Survey Control Points Used in the Engineering Mapping Project.

Contents:

  • Benchmark
  • Horizontal Control Points
  • Horizontal/Vertical Control Points
  • Vertical Control Points

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FILE: Gravel,Landfills,Trees,Etc...: Miscellaneous Outlines (MO)

Description: Stored as polygon features.

Contents:

  • Prominent Tree Clumps
  • Landfills
  • Quarries
  • Gravel Pits
  • Rock Outcrops
  • Escarpments
  • Revetments

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FILE: Miscellaneous Structures (MS)

Contents:

  • Rural Fences
  • Retaining Walls
  • Free Standing Walls
  • Storage Tanks

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FILE: Recreation: Recreation and Open Space (RO)

Description: General open space and recreation categories stored as polygon features.

Contents:

  • Cemeteries
  • Golf Courses
  • Parks
  • Picnic Areas
  • Playgrounds
  • Athletic Fields
  • Racetracks
  • Tennis Courts
  • Areas Under Construction

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FILE: Railways: Digital Railways (RR)

Contents:

  • Track Centerlines
  • RR Bridge
  • RR Crossing Signal

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FILE: Transportation: Street Centerlines (SC)

Description: Residential considered 2 lane widths or less, non-residential considered greater than 2 lane widths.

Contents:

  • Residential Street Centerlines
  • Non-Residential Street Centerlines

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FILE: Digital Elevation: Spot Heights (SH)

Description: Data points with elevation text.

Contents:

  • Spot Elevations
  • Water Surface Elevations

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FILE: State Plane Coordinate System (SP)

Description: Linear features and text marking key boundaries, including sheet boundaries and study limit boundaries.

Contents:

  • State Plane Grid
  • Neatline
  • City Boundaries
  • County Boundaries
  • Study Limit Boundaries

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FILE: Transportation: Digital Transportation Features (TR)

Description: Edge of pavement for improved streets and alleys, edge of traveled way for unimproved streets.

Contents:

  • Improved Streets
  • Alleys
  • Unimproved Streets
  • Pedestrian Bridges
  • Bridges
  • Parking Areas
  • Tunnels
  • Bike Paths
  • Concrete Barriers
  • Trails
  • Runways, Taxiways, Aprons

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FILE: Water Utilities (WU)

Description: Linear features marking outlines of prominent water utility features.

Contents:

  • Water Tanks
  • Water Towers
  • Storm Water Pump Stations
  • Wastewater Treatment Plants

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FILE: Miscellaneous Features (XX)

Contents:

  • Manholes (visible)

 

 
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