During his orientation tour of four U.S. Army Engineer Research and Development Center laboratories, Portland District’s Dr. Kyle Tidwell, left, visited the Environmental Laboratory’s (EL) Cognitive Ecology Ecohydraulics Research Facility for a briefing by the lab’s Avery Schemmel, research engineer, right, on Computational Modeling for Fish Tracking. Tidwell’s ERDC-U project of researching how civil work programs can support endangered salmon recovery in the Columbia River is based at this EL facility.