The streambed is an essential interfacial hydrologic body, controlling the flux of water, heat, solutes, and microorganisms between surface water and ground water. With increasing depletion of surface water and drawdown of ground water, improved understanding of the interrelations between physical, chemical, and biological processes occurring in streambeds is critical in maintaining healthy streams and ground-water resources. We would like to bring together researchers examining the physics, chemistry, and biology of streambeds, to highlight multiple perspectives on the nature of streambed properties and processes. Presentations are invited that discuss measurements and modeling of streambed processes, as well as presentations discussing quantitative measures of the degradation and restoration of streambeds. We particularly encourage presentations of studies that utilize multiple methods and/or evaluate streambed dynamics on multiple spatial or temporal scales.