Geospatial Mapping of City Utility Systems

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Drafting Services

Geospatial (GIS) Utility Asset Infrastructure Mapping Program:

  • Phase I: Southport
  • Phase II: City north of the Deep Water Ship Channel

Utility Infrastructure Mapping Status 3/2006 - Present:

Phase I - Completed
Phase II - Completed
Fire Hydrants
Phase I - Completed
Phase II - Completed
Phase I - Completed
Phase II - In Progress
Sanitary Sewer
Phase I - Completed
Phase II - In Progress
Storm Drain
Phase I - Completed
Phase II - In Progress

Ongoing: Continued GPS data collection and GIS/Geospatial mapping is necessary in order to maintain the utility asset feature base maps, incorporating new infrastructure which is installed as part of private site development and capital improvement projects.

Phase II – i.e., City north of the Deep Water Ship Channel:

Technical staff is continuing the GPS data collection and GIS/Geospatial mapping, employing traditional and GPS surveying equipment along with computer aided design (CAD) and GIS mapping software to create and edit map geometry three (3) dimensionally, object data, object data tables, data layers and external databases in support of the City’s utility asset infrastructure - i.e., water, sanitary sewer, storm drain and streetlight, mapping program.

Brief Description of Project:

Geospatial Geographic Information System (GIS) Utility Asset Infrastructure mapping combines survey grade traditional and global positioning system (GPS) utility asset infrastructure data, and object data tables to create accurate utility asset infrastructure system feature base maps.

GMOCUAI-2Maps and the objects contained in them are designed to create a model of the real world. A line, point or polygon, in a map, represents something in the real world. When collecting GPS object data – i.e., engineering surveying, a relationship is created between the geographic shape and the database related to the shape; this is what is known as a feature. In order to create a feature and add meaningful data, you must create a code list – i.e. water, sanitary sewer, storm drain and streetlight etc., detailing the geometry of the feature (point, line or polygon) and feature attributes, and the database fields to be populated by the data-collector. By means of GIS/Geospatial mapping, you create features. For instance, feature mapping a sanitary sewer network; rather than drawing a line to represent a pipe, you create a pipe feature – i.e., object data associated with the line geometry, and linked to an object data table. Therefore, the line is a pipe and not just a line. By attaching object data, to a line, point or polygon and linking to object data tables, you can better represent objects. Feature classification is a method of creating a standardized model of the objects being represented.

Project Manager:

John Gaskell
Drafting Services Manager
Engineering Surveying • Design Drafting • GIS/Geospatial Mapping

High Resolution Map of Project Area
Geospatial Mapping Information

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