Abstract: Friction factors of armored river beds at the discharge that forms the armor coat are investigated. The analysis shows that the friction factor is rather independent of grain‐size distribution of the material forming the ...

Abstract: In this paper a number of proposed criteria are analyzed that predict the ultimate equilibrium bed slope in streams upstream of a check dam. The analysis is based on a comprehensive data set that includes 132 reaches in ...

Abstract: Many investigators have observed that in mobile sand bed streams, there is a range of flows over which two subcritical depths of flow are possible. This phenomenon is typically attributed to a hysteresis effect in which ...

Abstract: Several models that can be used to optimally size water distribution pipes were applied to a hypothetical system. The results are summarized in this paper. The models produced solutions with costs that were within 10% of ...