About Diversion Head Work and selection site for a Head work

About Diversion Head Work:- 

To raise the water level in the channel header.

To form a storage by building dams on both banks of the river so that water is available throughout the year
To control the entry of sediment in the channel and to control the deposition of sediments in the channel header
To control the fluctuation of the water level in the river during different seasons

Selection site for a head work:-

At the site, the river should be Being straight and narrow

The riverbanks are well defined.

The land shall not be Valuable submerged dam or barrier When You Build.

Site Elevation must be much larger than the one being irrigated area.

The site  BE EASY ACCESS By Road Railways .

BUILDING MATERIALS Be Available around the site.

The site should not be too far from the command area of the Project, para Avoid Lost transmission.