As the steam velocity increases, the diameter of the sediments being transported increases.
Manning equation if the hydraulic radius decreases then the velocity decreases
Fall to the bottom as sediment, of course.
A river delta is formed from the deposition of sediments carried by a river as the river enters an ocean, sea, lake, or another river. This is because the flow velocity decreases significantly and the fluid loses the ability to transport sediment.
Dale W. Blevins has written: 'The response of suspended sediment, turbidity, and velocity to historical alterations of the Missouri River' -- subject(s): Environmental aspects of River engineering, River engineering, Sediment transport
These obstacles causes friction between water and rocks.This ultimately reduces the velocity of river water.The more roughness of the channel, the less the river`s velocity.
when a river rounds a bend, its velocity increases on the outside of the curve. Its velocity slows on the inside part of the curve, so sediments tend to be deposited there.Discharge and velocity increase during a flood, then decrease as flood waters subside.
Deltas are complex depositary features which are formed at the mouths of rivers. Some major deltas are the Nile delta in Egypt, the Mississippi delta in the USA and the Ganges delta in Bangladesh. They mainly form because the velocity of a river slows where the fresh water mixes with the salt water of the sea and the reduction of velocity causes sediment carried by the river, the heaviest sediment first.
Due to the sediment within the river. this sediment causes the river to appear orange/reddish
sediment load
Sediment
Sprint rains and snow melt increase the volume and velocity of the river moving more material.
an older river deposits more sediment.