12.2.6. Aggrading Rivers When the sediment load entering a river reach is greater than the sediment load leaving a river reach, the river in that reach becomes an aggrading river due to deposition of excess sediment. This situation may arise due to obstructions (e.g., barrage or dam) across a river, extension of delta at the river mouth, or sudden intrusion of sediment from a tributary.
408 IRRIGATION AND WATER RESOURCES ENGINEERING
Aggrading rivers usually have straight and wide reaches with shoals in the middle which shift with floods. The flow in the river channel gets divided into a number of braided channels.
