Abstract: Experiments on the incipient motion of gravel and sand mixtures of 0:100, 10:90, 25:75, 45:55, and 100:0 percent ratios of gravel and sand, respectively, were made in a laboratory flume. A series of transport experiments ...

Abstract: Equilibrium sediment transport experiments were made in two flumes, one with a 6‐m long by 0.15‐m wide channel and the other with an 11‐m long and either 0.74‐ or 0.53‐m wide channel. The sediment (0.1 to 32 mm,

Abstract: Goodwin Creek is a steep (bed slope of study reach = 0.003) gravel-bed stream in the bluff-line hills east of the Mississippi River floodplain in the north-central part of the state of Mississippi. Records of the flow for ...

Abstract: Sand and gravel transport were sampled in flow rates from just above to several times the critical shear stress of the bed material at two sites on Goodwin Creek, Mississippi. Transport rates representative of the channel ...

Abstract: At base-flow conditions, ephemeral streams with mobile beds may inherit bed topography caused by previous higher flow events, resulting in bed topography that is not in equilibrium with flow conditions. Major flow events ...

Abstract: Cleaning of fine sediment out of gravel streambeds has become an important method to restore affected stream habitats. Introducing the increased flows needed to entrain fine sediments without eroding the coarser fractions ...

Abstract: A series of experiments were conducted in which the volume of the scour hole associated with model spur dikes was measured in a laboratory flume under clear-water overtopping flows. Spur dike models were angled at 45, 90, ...

Abstract: To improve knowledge of the flow and scour processes associated with spur dikes, three-dimensional flow velocities were measured at 2,592 points using an acoustic Doppler velocimeter over a fixed flat bed with a trapezoidal ...

Abstract: Advances in bathymetric data acquisition have made it possible to explore alternative methods for measuring bed-load transport in rivers. The method validated herein consists of measuring rates of bed scour by using ...