Chris Rehmann


Faculty Affiliate, InTrans





Professor, Department of Civil, Construction and Environmental Engineering



About Chris

Dr. Chris Rehmann is a civil engineer whose research in hydraulics and environmental fluid mechanics includes flooding, stormwater runoff, and groundwater. His projects include experiments and modeling of differential mixing of salinity and temperature, the interaction of turbulence and double diffusion, mixing near bubble plumes, and boundary mixing in lakes. He has also worked on river mixing by assessing acoustic measurements of velocity, turbulence, and discharge and used acoustic measurements to determine dispersion in streams. He has applied his knowledge of mixing and transport in interdisciplinary collaborations involving the fate and transport of zebra mussel larvae, pathogens, and antibiotic resistance genes in rivers. Recent work on contamination caused by flooding involves a strong focus on environmental justice.


  • PhD, Civil Engineering, Stanford University, 1995
  • MS, Civil Engineering, Stanford University, 1990
  • SB, Civil Engineering, Massachusetts Institute of Technology, 1989

Professional Experience

  • Joel A. and Judy Cerwick Professor, Department of Civil, Construction, and Environmental Engineering, Iowa State University, 2021–present
  • Associate Chair, Department of Civil, Construction, and Environmental Engineering, Iowa State University, 2012–present

Selected Publications

  • McEachran, A. R., L. C. Dickey, C. R. Rehmann, T. M. Isenhart, T. A. Groh, M. A. Perez, and C. J. Rutherford, C.J. 2022. Groundwater flow in saturated riparian buffers and implications for nitrate removal. Journal of Environmental Quality.
  • Craig, A. J., C. R. Rehmann, L. M. Alt, L. M. Schulte-Moore, and M. L. Soupir. 2022. Prairie strips reduce fecal indicator bacteria concentrations in simulated runoff, Journal of the American Water Resources Association, Vol. 59, No. 2.
  • Willard, I. P., and C. R. Rehmann. 2022. Interaction between double diffusion and differential diffusion in a stratified turbulent flow, Environmental Fluid Mechanics.
  • Dickey, L. C., A. R. McEachran, C. J. Rutherford, C. R. Rehmann, M. A. Perez, T. A. Groh, and T. M. Isenhart. 2021. Slope stability of streambanks at saturated riparian buffer sites. Journal of Environmental Quality.
  • McEachran, A. R., L. C. Dickey, C. R. Rehmann, T. A. Groh, T. M. Isenhart, M. A. Perez,, and C. J. Rutherford. 2020. Improving the effectiveness of saturated riparian buffers for removing nitrate from subsurface drainage. Journal of Environmental Quality.
  • Maroney, C. L., and C. R. Rehman. 2017. Stream depletion rate for a radial collector well in an unconfined aquifer near a fully penetrating river. Journal of Hydrology, Vol. 547, pp. 732–741.
  • Tesfatsion, L., C. R. Rehmann, D. S. Cardoso, Y. Jie, and W. J. Gutowski. 2017. WACCShed: an agent-based watershed platform. Environmental Modelling and Software, Vol. 89, pp. 40–60.
  • Pandey, P. K., M. L. Soupir, C. Ikenberry, and C. R. Rehmann. 2016. Predicting streambed sediment and water column Escherichia coli levels at watershed scale. Journal of the American Water Resources Association, Vol. 52, pp. 184–197.
  • Schmalle, G. F., and C. R. Rehmann. 2014. Analytical solution of a model of contaminant transport in the advective zone of a river. Journal of Hydraulic Engineering, Vol. 140.
  • Wain, D. J., M. S. Kohn, J. A. Scanlon, and C. R. Rehmann. 2013 Internal wave driven transport of fluid away from the boundary of a lake. Limnology and Oceanography, Vol. 58, pp. 429–442.
  • Pandey, P. K., M. L. Soupir, and C. R. Rehmann. 2012 A model for predicting resuspension of Escherichia coli from streambed sediments. Water Research, Vol. 46, pp. 115–126.