Stormwater Symposium

Oral

395719 - A Site Scale Integrated Decision Support Tool for Urban Stormwater Management

Wednesday, June 6
4:00 PM - 5:30 PM
Location: Greenway AB
Co-Authors: Mengistu Geza, South Dakota – SD Mines; Colin Bell, Colorado – Colorado School of Mines; Elizabeth Gallo, Colorado – Colorado School of Mines; Katie Spahr, Colorado – Colorado School of Mines; Terri Hogue, Colorado – Colorado School of Mines; John McCray, Colorado – Colorado School of Mines

A Site Scale Integrated Decision Support Tool for Urban Stormwater Management
A. Shojaeizadeh1, M. Geza1, C. Bell2, E. Gallo2, K. Spahr2, T. Hogue2, J. McCray2
1 Civil and Environmental Engineering Department, South Dakota School of Mines and
Technology
2 Civil and Environmental Engineering Department, Colorado School of Mines

Abstract
This presentation overviews work within the development of a planning-level, integrated decision support tool for grey and green stormwater infrastructure, called the integrated Decision Support Tool (i-DST). As part of this framework, a site scale module is being developed for runoff estimation and for selection of best management practices (BMPs) from small catchments. Several of the more complex stormwater tools require expertise to build and operate. The site scale i-DST is built on accessible platform (Microsoft Excel VBA) and can be operated with a minimum skillset. It is based on readily available data and provides a comparative analysis among various scenarios for BMP selection, sizing, cost, and performance. The site scale i-DST is fully automated optimization tool that selects BMPs based on input data such as quality and quantity of stromwater, target water quality and runoff reduction requirements, technical and economic criteria. It was demonstrated through scenario evaluation that the tool recommended cost effective BMPs. The tool is flexible allowing user interaction through a graphical user interface. Users can change BMP selection criteria and weights, include or exclude BMP types from the selection process depending on site specific criteria. The tool includes a hydrologic module for simulation of runoff on event and continuous basis. The site scale i-DST is intended for designers, regulators and municipalities for quick analysis of scenarios involving the interaction of several factors. The output includes most effective BMP(s) with respect to the technical and economic criteria which meets target water quality and flow reduction requirements.


Ali Shojaeizadeh

PhD Student
South Dakota School of Mines & Technology

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