Geol104 lecture 30 surface and ground water: bed load. Coarse sands, gravel, and boulders move along the stream bed by saltation (skipping or jumping. During saltation clasts bounce along the river bed and knock other clasts into the flow. Less rapid and more localized than transport via suspended load. Suspended load floats along in the water, not along the bottom: accounts for foggy water until you hit the bottom, then clears and can see the saltation. Dissolved load has been dissolved into water: transport of sediment by streams. Capacity is the maximum load of solid particles a stream can carry: the greater the discharge, the greater the capacity, increases closer to mouth and farther from the head waters. Competence is the maximum particle size a stream can transport: streams with a faster velocity have a higher competence, increases closer to the headwaters and farther from mount.