Abstract

Using ModelBuilder to Evaluate Risk and Prioritize Sewer Upgrades
Track: Water, Wastewater, and Stormwater
Authors: Andrew Baldwin, Erin Smith

Sewer infrastructure is progressively deteriorating resulting in increasing pipe failures causing environmental, social and economic impacts for the water agencies and their customers. This paper describes a GIS-based approach for conducting risk analysis and resulting CIP prioritization using ESRI’s ModelBuilder application. The risk analysis uses ArcGIS spatial tools to analyze the consequence and likelihood of failure along with the final risk scores and CIP project prioritization.