Technical Report EL-95-21 July 1995 US Army Corps of Engineers Waterways Experiment Station Imaging Smolt Behavior on Bypass Screens and a Vertical Barrier Screen at McNary Dam in 1992 by John M. Nestler, Robert A. Davidson ELECTEp SEP 2 1 19951 Approved For Public Release; Distribution Is Unlimited 19950919 283 Prepared for U.S. Army Engineer District, Walla Walla DTTC QUALITY TD7-H7ECTEB 8