Abstract

Using GIS for an Accurate, Cost-Saving Stormwater Geodatabase
Track: Engineering Design and Construction
Author(s): Dixon Brackett

Earthworx, LLC collected data and constructed a storm water geodatabase for the City of Chattanooga, Tennessee. The goals of this project were to build a survey-grade accurate geodatabase in a cost effective manner within a specified time limit. More than 75,000 storm water structures containing greater than forty attributes each were surveyed and mapped into a GIS. Storm water conveyances connecting these structures were also mapped to ensure construction of a functional, three-dimensional geographic network. The geographic extent for this project was approximately one hundred seventy square miles including varying terrain (rivers, valleys and mountains) and surface conditions. Traditional total station, robotic and global positioning survey equipment were used to collect data. Stringent QA/QC procedures were developed to ensure the quality of the data. The surveying and GIS methods employed during this project resulted in a multi-million dollar savings for the client while maintaining the survey-grade accuracy of the data.

Dixon Brackett
Earthworx, LLC
6223 Lee Hwy - Ste. 210
Chattanooga , Tennessee 37421
United States
Phone: (423) 892-4780
E-mail: dixie.brackett@earthworxLLC.com