Application of TISCIT Data in Improving Hydraulic Model Reliability

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In 2005, the City of Dayton initiated a hydraulic modeling program to facilitate the determination of collection system capacity and to ensure that planned future expansions have adequate capacity to handle anticipated wastewater flows. The Dayton hydraulic model was built from a GIS GeoDatabase and additional sewer system survey. Flow and rain monitoring data were used for model calibration. For the areas where flow monitoring depth did not match model depth, sediments were suspected. Dayton investigated these areas using TISCIT (Totally Integrated Sonar and CCTV Inspection Technique). The objective of this paper is to present how TISCIT data (sonar investigation) improved hydraulic model calibration and therefore hydraulic model reliability, while also providing valuable system information.

Document Type: Research Article


Publication date: January 1, 2008

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