WWE is experienced with multiple hydrologic, hydraulic, sediment transport and water quality models used for a wide range of stormwater applications. Examples of recent WWE stormwater modeling projects include using HEC-HMS to route flows and estimate the increase in runoff rates from forested watersheds that have been impacted by wildfire, using CUHP and SWMM to simulate the hydrology at a Department of Energy facility and using HEC-RAS to evaluate channel hydraulics and base flood elevations in regulated floodplains. WWE also uses the Water Quality-COSM model developed by Ben Urbonas of the Urban Watersheds Research Institute for statistical hydrologic analysis, development of water quality capture volume curves and pollutant load estimates.
WWE has the ability to link many of these models to GIS, which can aid in model parameterization and visualization of results. WWE has applied these models and others, ranging from spreadsheets created in house to complex two-dimensional water and debris flow models, to assist clients with analysis of hydrology, hydraulics and, in some cases, water quality. WWE has prepared models for application on projects around the U.S.