Flood Plain Management Integrating GIS and HEC-2

by Kenneth R. DePodesta, Philips Planning & Engineering, Ltd, Mississauga, Canada,
Peter Nimmrichter, Philips Planning & Engineering, Ltd, Mississauga, Canada,
Ronald B. Scheckenberger, Philips Planning & Engineering, Ltd, Mississauga, Canada,

Document Type: Proceeding Paper

Part of: Civil Engineering Applications of Remote Sensing and Geographic Information Systems


Little has been done over the years to either automate the more labour intensive activities involved in flood plain management or to increase the efficiency and accuracy of handling applications for development or modification of hazard lands. A logical approach to addressing both of these shortcomings is to integrate a Geographic Information System (GIS) into the flood plain management process. For the water resources professional, a GIS-based flood plain management system would serve two primary functions. First, it would serve as a front end to the modelling process, providing digital data for input into both hydraulic and hydrologic modelling programs. Second, it would act as a dynamic output medium for results of the modelling process, converting the output data into flood elevation contours on existing digital base mapping. For watershed planners, such a system would provide immediate access to current flood information through interactive GIS inquiries. This document outlines the continuing development of a GIS-based flood plain management system, GISFPM, which interfaces Geo/SQL(R) and the hydraulic modelling package, HEC-2.

Subject Headings: Hydraulic models | Systems management | Flood plains | Geographic information systems | Information systems | Resource management | Hydrologic data | Information management

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