Office of the Dean
Phone: (208) 885-6470
Toll-free: 88-88-UIDAHO
Fax: (208) 885-6645
Email: deanengr@uidaho.edu

Janssen Engineering (JEB)
Room 125

875 Perimeter Drive MS 1011
Moscow, ID 83844-1011

Dean's Office Directory


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


Tim DeWeese and Heidi Smith Hydro Research Foundation College of Engineering University of Idaho

Hydro Research Foundation Fellows

Quantifying streambed scour – deposition below hydropower dams using temperature time series data, Tim DeWeese

Tim’s research aims to develop a new, simple and economical method to continuously monitor and record local streambed scours and depositions for ecological and engineering purposes. The method uses naturally occurring daily temperature oscillations in stream water as a signal to detect changes in streambed elevation. His laboratory experiment uses a sediment tank to mimic stream water temperature oscillations and groundwater flux. Quantification of bed elevation changes in the sediment tank are predicted and compared to actual imposed values.  Tim is also working on a field temperature probe prototype that he will place downstream of a dam release controlled river and use to demonstrate streambed elevation changes related to dam release flow regime. 

Improving on hydropower mitigation success by refining predictions of grain motion,
Heidi Smith

Heidi's research aims to improve on predictions of the onset of sediment motion in rivers by including the effects of turbulence and local river topography.  Current motion predictions result in large errors so improving them will aid in our ability to predict sediment loads more accurately and restore rivers more effectively.  To build her numerical model, Heidi collected turbulence data using the Center for Ecohydraulic's flume laboratory.  Then, in Brunni Switzerland, she tested her sediment motion model in an outdoor river laboratory administered by the Swiss Federal Institute for Forest, Snow and Landscape Research.

The Center for Ecohydraulics Research and the University of Idaho are grateful to the Hydro Research Foundation for their generous support of Tim DeWeese and Heidi Smith.