Coastal and Estuarine
The FlowWest team brings more than 25 years of experience leading engineering and modeling studies in coastal and estuarine systems. This work includes sea level rise modeling, tidal wetland restoration, and the application of 3D hydrodynamic, wave, salinity, temperature, sediment transport, and morphologic models in large estuarine systems including San Francisco Bay and the Chesapeake Bay.
- view_in_ar3D Hydrodynamic Modeling
- salinitySalinity Modeling
- wavesWave Modeling
- landslideSediment Transport Modeling
- tsunamiSea Level Rise Planning
- engineeringTidal Wetland Restoration
- waterfall_chartWater Project Operation
- model_trainingFish Behavior and Entrainment
- shieldShoreline Protection
UnTRIM
The UnTRIM San Francisco Bay-Delta model is a high-resolution, three-dimensional hydrodynamic model that simulates water movement throughout the San Francisco Bay and Sacramento-San Joaquin Delta. Using an unstructured mesh, the model transitions from large grid cells in the Pacific Ocean to fine-scale resolution in Delta channels, allowing for both regional and local-scale analysis. Extensively calibrated with observed data, the model provides accurate predictions of water levels, flows, velocities, and salinity. It has been used by state and federal agencies to support estuary management, restoration planning, and infrastructure evaluation across the Bay-Delta system.
Multiple ClientsSan Francisco, CA
Calabazas/San Tomas Aquino (STA) Creek-Marsh Connection Project
The Calabazas/San Tomas Aquino Creek-Marsh Connection Project is the first effort in the Lower South San Francisco Bay to restore natural connections between local creeks, former salt ponds, and the Bay. Led by Valley Water, the Project will use nature-based solutions to restore 1,800 acres of tidal marsh, enhance 50 acres of freshwater and brackish habitat, and improve over 4 miles of riverine habitat. By reestablishing sediment flow and tidal exchange, the Project supports habitat restoration, flood protection, reduced maintenance, and improved coastal access. Modeling tools, including hydrodynamic and sediment transport simulations and the WARMER model, are being used to guide design and ensure the restored ecosystem is resilient to 50 years of projected sea level rise.
Santa Clara Valley WaterLower South San Francisco Bay, CA