Witnessly
Expert Witness Profile
Expert Directory

Jeff Lewandowski

D. Eng., P.E.

Walnut Creek, CA35 years+ years experience
Forensic Hydraulic and Coastal Engineering – Storm Water, Wastewater, and Groundwater Systems

Is this your profile?

Claim this listing to verify your information, add details, and be discoverable by attorneys searching for expert witnesses.

Claim Your Profile

Professional Summary

Jeff Lewandowski, D. Eng., P.E. is a hydraulic and coastal engineering expert specializing in water resources management and sedimentation and scour. With a career spanning civil engineering, water system modeling, and construction defect analyses, he brings a comprehensive framework to litigation work involving complex water-related issues. His work centers on investigating storm water drainage and flooding, assessing drinking water flow and pressure, and evaluating wastewater and sewer backup impacts.

Mr. Lewandowski has been retained in numerous expert witness and consulting engagements across California and Hawaii, involving storm water drainage, tidal hydrodynamics, and groundwater management. His D. Eng. in Civil Engineering (Hydraulic and Coastal Engineering) from the University of California, Berkeley, along with his Professional Civil Engineer licenses in CA and HI, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving hydraulic and hydrologic analyses.

Work Experience

Jeff Lewandowski is currently a Project Engineer/Project Manager at Advanced Hydro Engineering in Walnut Creek, CA.

Expert Intelligence

AI-Generated AnalysisBased on public information

Best Descriptor

Jeff Lewandowski specializes in hydrologic and hydraulic engineering for storm water and flood management.

Best Use Cases

  • 1floodplain analysis for urban development
  • 2storm water management system design
  • 3hydraulic modeling for environmental assessments

Full analysis available to registered users

View full report

Work with Jeff?

Create a free account and contact through Witnessly.

Let's Get Started!

Education

  • D. Eng. in Civil Engineering (Hydraulic and Coastal Engineering)

    University of California, Berkeley · 1993

  • M.S. in Engineering

    South Dakota State University · 1985

  • B.S. in Civil Engineering

    South Dakota State University · 1984

Licenses

  • Professional Civil EngineerCalifornia (CA)
  • Professional Civil EngineerHawaii (HI)
© 2026 Witnessly. All rights reserved.