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Civil Engineering
Phone: (208) 885-6782
Toll-free: 88-88-UIDAHO
Fax: (208) 885-6608
Email: civilengr@uidaho.edu

Buchanan Engineering (BEL)
Room 102

875 Perimeter Drive MS 1022
Moscow, ID 83844-1022


Contact Denise Engebrecht
Phone: (208) 364-6123
Fax: (208) 364-3160
Email: denisee@uidaho.edu

Idaho Water Center
322 E. Front Street
Boise, ID 83702

Idaho Falls

Contact Debbie Caudle
Phone: (208) 282-7983
Fax: (208) 282-7929
Email: debrac@uidaho.edu

1776 Science Center Drive, Suite 306
Idaho Falls, Idaho 83402

Distance Education

Engineering Outreach
Phone: (208) 885-6373
Toll-free: (800) 824-2889
Fax: (208) 885-9249
E-mail: outreach@uidaho.edu


Elowyn Yager

Elowyn Yager, Ph.D.

Office: Center for Ecohydraulics Research
Phone: 208-364-4935
Email: eyager@uidaho.edu
Mailing Address: Center for Ecohydraulics Research
322 East Front Street, Suite 340
Boise, Idaho 83702

College of Engineering
Department of Civil Engineering
Associate Professor

Campus Locations: Boise

  • Research/Focus Areas
    • Fluvial geomorphology
    • Sediment transport
    • River restoration
    • Channel evolution
    • Fluid mechanics
    • Turbulence
  • Biography

    Dr. Yager joined the Center of Ecohydraulics Research and the Department of Civil Engineering in the Fall of 2007.

    Her research interests focus on gaining a mechanistic understanding of the interactions between flow turbulence, sediment transport and river morphology. She uses field and laboratory experiments to elucidate the processes that control flow and sediment flux on hillslopes and in river channels. This knowledge is then used to improve predictions of flow and sediment flux throughout river systems. An understanding of sediment transport is particularly important in areas impacted by increased fire severity and human activities (e.g. logging, grazing, mining, dam removal, or construction).

    Dr. Yager is actively collaborating with researchers at Arizona State University, University of California, Berkeley, and the Swiss Institute WSL.

    Personal webpage: https://sites.google.com/site/emyager/home


  • Selected Publications
    • E.M. Yager (Invited, in review), Chapter 9.3.3 Bed entrainment and pavement, Elsevier Treatise on Geomorphology, edited by Ellen Wohl.
    • E.M. Yager, J. Turowski, D. Rickenmann and B.W. McArdell (in revision), The impact of high magnitude, low frequency flow events on channel grain size and morphology, Natural Hazards.
    • B.T. Yuill*, M.H. Nichols, E.M. Yager (2010), Coarse bed material patch evolution in low-order, ephemeral streams, Catena.
    • J. Turowski, E. Yager, A. Badoux, D. Rickenmann, P. Molnar (2009), The impact of exceptional events on erosion, bedload transport and channel stability in a step-pool channel, Earth Surface Landforms and Processes.
    • Yager, E.M, J.W. Kirchner, and W.E. Dietrich, (2007), Calculating bedload transport in steep, boulder-bed channels, Water  Resources Research, 43, W07418, doi:10.1029/2006WR005432.
    • Perron, J. T., M. P. Lamb, C. D. Koven, I. Y. Fung, E. Yager, and M. Ádámkovics (2006), Valley formation and methane precipitation rates on Titan, J. Geophys. Res., 111, E11001, doi:10.1029/2005JE002602.
  • Research Projects
    • Prediction and measurement of sediment transport rates in steep, mountain channels.
    • The influence of emergent vegetation on turbulence, sediment flux and channel morphology.
    • The effects of sediment supply on sediment patch dynamics and aquatic habitat.
    • The impact of climate change and fire on sediment production on hillslopes, river morphology and aquatic habitat.
  • Awards and Honors
    • NSF-CAREER Award, 2009-2014
    • The Berkeley Fellowship, 1998-2001. University of California
    • Dean's Outstanding Senior in Science and Mathematics, 1998. State University of New York at Buffalo