Confluence Consulting’s water resources engineer Ronda Burns recently attended the Montana Chapter of the American Fisheries Society meeting in Great Falls. She assisted Carol Endicott, Montana Fish Wildlife and Parks. Carol presented “Yellowstone Cutthroat Trout Conservation in Lower Deer Creek: Population Replication, Nonnative Suppression, Barrier Construction, and Piscicide”. Confluence’s role in the project was performing hydrologic and hydraulic design for a fish barrier. Confluence also completed analysis and evaluation of several weir dimensions in order to determine the minimum dimensions of a structure that would maintain a four foot leap height and super critical flow at the toe in order to be a barrier for adult rainbow trout at all flows.