Hydrologic and Hydraulic Modeling

“All models are wrong; some are useful.” –George Box

Accurate hydrologic and hydraulic modeling is important in understanding and visualizing the huge range of flows that shape ecosystems, flow through stormwater systems, and fill floodplains. Modeling can become an end in itself when not designed to answer a specific question. We understand the limits and useful application of models and apply this to site-specific designs, to basin-scale projects, to pilot-scale models that compare outcomes of various policies. We regularly use design storm and continuous simulation hydrology, steady and unsteady flow, one and two dimensional modeling, and sediment transport modeling.

Hydraulic Modeling for fish passage and irrigation diversion
The Seven Mile Fish Passage project required modeling that maintained flows for two irrigation diversions and roughened channel fish passage design flows.