While comprehensive flood control measures will
reduce flooding, planned high embankments may be
more prone to catastrophic failures from increased
flow velocities in the rivers. Also, the high embankments
obstruct the fine-sediment flow into
agricultural lands. Extensive estuarine siltation and
increased flooding, together with increased coastal
erosion and the loss of coastal wetlands, are likely to
occur if dam construction decreases riverine sediment
inflow to the sea (Hoa et al. 2007).