Riverside Technology, inc. (RTi) uses state of the art hydrologic and hydraulic models, real-time satellite imagery, and high resolution digital elevation models for forecasting floods and producing flood inundation maps in support of disaster management. Updated automatically with every system execution, flood inundation maps can be produced in real-time based on the observed and forecasted conditions. Flood inundation maps also can be produced to identify the extent of flooding at a given point in time, the maximum extent of flooding for an entire event, or to show a forecasted future event.

Hydrologic data collected at stream-gaging stations and communicated in real-time via satellite are incorporated into hydrologic models for hydrologic forecasting and weather advisories. RTi's RiverTrak® Streamflow Forecasting System processes real-time rainfall and basin streamflow data to produce forecasts for major basin areas subject to flooding. An estimate of the 50-year flood plain developed from the HEC-RAS model is incorporated into the real-time forecasting system, and water surface elevations computed for each river channel cross-section by HEC-RAS are input into the mapping system component. The RiverTrak® System can be configured for integration with a variety of mapping packages to produce the flood inundation maps.

Used by emergency managers, floodplain administrators, and water supply organizations, flood inundation maps are valuable for prediction and analysis of areas of inundation resulting from riverine flooding. RTi's real-time flood inundation maps are available for immediate use, providing the timely information needed to support agencies in emergency management.

Flood inundation maps produced using the RiverTrak® System – Tegucigalpa, Honduras.

Flood Mapping Applications:

• FEMA floodplain delineation
• Real-time flood warning display
• Emergency management and response
• Storm flooding design analyses
• Reservoir release impact assessments
• Dam break analysis
• Historical flooding analyses
• Economic impact analyses