The deepening of a streambed will cause the above said situation. However, as sediments are reintroduced in to the stream beds bellow a dam, then we will in effect reduce the erosion condition. To some extent, the natural nutrients, and microorganisms will also be allowed to continue on its journey. The natural replenishing will now not be hindered. Water temperature changes may also be of a lesser extent.
Water density is affected as well.
The combinations of all the said things have an influence to the total health of any streambed. The gates to control the bypass flow would be of the drum gate type. This gate system can be accurately controlled via the correctly programmed computer system. The system will allow us to make the correct calculations, as of the amount of water - sediments we would like to divert. For the Fish migrations see below.