is a project manager and senior hydraulic engineer with over 16 years of experience in water resources and hydraulic engineering. Mr. Puhn has conducted hydrologic, hydraulic, sedimentation, and geomorphic studies throughout the United States. His project experience includes bridge hydraulic and scour analyses, revetment design, steady and unsteady river hydraulic modeling, hydrologic modeling, flood hazard analysis, sediment transport modeling, geomorphic analysis, bank erosion assessment, and reservoir sedimentation studies.

Mr. Puhn earned his B.S. in Geology from Northern Arizona University and his M.S. in Water Resource Engineering from Oregon State University.