1 Natural Drainage Expert Witness Found

Results Sorted Below by State

Jeff Lewandowski, D. Eng., P.E. Advanced Hydro Engineering

Walnut Creek, California
Civil Engineering, Engineering - Water related system modeling and construction defect analyses, Design and PS&E, Drinking water flow and pressure, Wastewater and sewer backup, Storm water drainage and flooding, Groundwater and seepage, Tidal hydrodynamics, Water pumping and storage, Hydraulic and hydrologic analyses, Irrigation
...Storm Drain Systems – Master planning and water quality modeling studies for numerous agencies, cities and districts, including a tidal hydrodynamic model of a natural coastal wetland for rehabilitation and restoration studies. Storm drain system design projects included redevelopment areas with bay mud settlement issues. Flooding – Modeled tidal flooding in a development bordering the San Pablo Bay waterfront. Analyzed flooding levels in numerous natural creeks, channels, roadways and storm drains. Reduced FEMA flood plain water surface levels and boundaries based on updated modeling data. Groundwater – Developed planning level reviews and assessments of groundwater resources for agencies, cities and districts. Subsurface Drainage – Investigated excessive moisture observed in crawlspaces where condominiums and other structures were cut into hillside....