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This Regional Sediment Management Technical Note (RSM-TN) summarizes a training/brainstorming workshop held on the topic of reservoir sediment management supported by the U.S. Army Corps of Engineers (USACE) Regional Sediment Management (RSM) Program. The workshop consisted of 1½ days of training on reservoir sedimentation and sediment management strategies with specific focus on Milford Lake in the Kansas River basin. This CHETN describes the workshop format and agenda, lists ideas generated, and documents suggestions for improvement. INTRODUCTION: Sedimentation in USACE reservoirs decreases available storage of water and has deleterious effects on the reservoirs' authorized purposes and benefits. Sedimentation problems are severe in reservoirs on tributaries of the Kansas River (Figure 1) where increasing water demand due to population growth in the watershed must be satisfied by reservoir water storage volume that is shrinking due to decades of reservoir sedimentation. Correspondingly, downstream channels are degrading, and sediment-dependent aquatic species are suffering from a lack of sediment (Shelley et al. 2016). Milford Lake additionally suffers from frequent severe, harmful blue-green algae blooms. On 20-21 July 2016, the USACE RSM Program facilitated the 1½-day training/brainstorming workshop on reservoir sediment management, with a specific focus on Milford Lake in the Kansas River basin. Thirty-seven people attended, with robust participation by 11 State of Kansas agencies, including those responsible for water and natural resources planning, operations, research, and permitting. Other participants included watershed protection groups; the U.S. Geological Survey (USGS); and personnel from the USACE Northwest Division (NWD), Kansas City District (NWK), Omaha District (NWO), and Engineer Research and Development Center (ERDC). This workshop will aid in the development of a framework for future workshops in other locations. WORKSHOP PREPARATION: Prior to the workshop, available data for Milford Lake was compiled on the hydrology, watershed characteristics, locations and magnitude of in-reservoir sedimentation, sediment physical and chemical composition, outlet works, and results of screening equations. These data were presented during the workshop, prior to breakout sessions to establish a common understanding of this specific reservoir. Workshop topics and speakers were selected to provide comprehensive training with appropriate emphasis on local issues.

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