Laboratory Phone Numbers
General Phone Number: (303) 445-2150
Fax: (303) 445-6324
Our Staff and Their Specialties
Bob Einhellig, P.E. (Iowa), Hydraulic Engineer. B.S., Univ. of Kansas, M.S. Iowa State University. (303) 445-2142. reinhellig@usbr.gov [Water management, flow measurement, irrigation, hydraulic structures modeling]
Tracy Vermeyen, P.E. (Colorado), Hydraulic Engineer, B.S. and M.S. Civil Engineering, Colorado State University. (303) 445-2154. tvermeyen@usbr.gov, [selective withdrawal, acoustic velocity meters, thermally stratified flows, labyrinth weirs, open channel water measurement]
Brent Mefford, P.E. (Colorado), Technical Specialist-Hydraulic Engineer. B.S. Watershed Science, M.S. Civil Engineering, Colorado State University. (303) 445-2149. bmefford@usbr.gov, [Environmental Hydraulics, Dam Safety]
Leslie Hanna. Hydraulic Engineer. B.S. Mechanical Engineering, Arizona State University. (303) 445-2146. lhanna@usbr.gov, [Environmentally acceptable lubricants for wicket gates, stilling basin erosion problems]
Kathy Frizell Hydraulic Engineer. B.S. Water Resources, UCLA. (303) 445-2144. kfrizell@usbr.gov
[Stepped spillway design, overtopping protection design, dam safety, total dissolved gas investigation, fish barrier design, water measurement]
K. Warren Frizell. Research Hydraulic Engineer. B.S. Mechanical Engineering, University of New Mexico. M.S. Civil Engineering, University of Minnesota. EIT, State of Colorado. (303) 445-2145. wfrizell@usbr.gov, [Operation and maintenance of hydraulic systems]
Joseph P. Kubitschek, P.E. (Colorado), Hydraulic Engineer. B.S. and M.S., Mechanical Engineering, University of Colorado at Boulder (303) 445-2148. jkubitschek@usbr.gov . [Environmental hydraulics, fish passage and protection, hydrodynamic stability.]
Dale Lentz, P.E. (Washington), Hydraulic Engineer. B.S. and M.S., Utah State University, (303)-445-2143. dlentz@usbr.gov, [Fish passage and protection, hydraulic modeling.]
Tony L. Wahl, P.E. (Colorado) Hydraulic Engineer. B.S. and M.S. Civil Engineering, Colorado State University, (303) 445-2155. twahl@usbr.gov [water measurement & long-throated flume design software (WinFlume), fish screen modeling, dam breach research, fuse plugs, hydropower & cavitation, canal automation, SonTek ADV probe & software (WinADV).]
James Higgs, P.E. (Colorado), Hydraulic Engineer. B.S. and M.S., Civil Engineering, Utah State University, (303) 445-2147. jhiggs@usbr.gov, [Computational Fluid Dynamics, Rubber gates, Numerical modeling, ground water.]
Connie DeMoyer, Hydraulic Engineer. B.S. Civil & Environmental Engineering, Lehigh University. M.S. Civil Engineering, University of Minnesota. EIT. (303) 445-2152. cdemoyer@usbr.gov. [Selective withdrawal, water quality.]
Tom Gill, Hydraulic Engineer, B.S. and M.S. Civil Engineering, Colorado State University. (303) 445-2201. tgill@usbr.gov
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Last reviewed: 03/19/09