This Technical Report was assembled for, and disturbed during, the U.S. Fish and Wildlife Service (USFWS) Fish Passage Workshop (Workshop) held in Hadley, Massachusetts on August 5 and 6, 2014. The Workshop, a two-day training course for engineers, biologists, hydrologists, environmental scientists, and practitioners involved in the design, operation and oversight of fish passage projects, was developed in partnership with the U.S. Geological Survey’s (USGS) S.O. Conte Anadromous Fish Research Center (Conte) and the University of Massachusetts Amherst’s Department of Civil and Environmental Engineering (CEE).