In this paper, the application of box floor as submerged camel to hydraulics structures being constructed ,such as sluice gates only temporarily adjusted, water works in the place where the streams being intersected, locks with broad chamber , etc. , is introduced. The sites of these structures are to be on a straight stretch where the diverting of the rivers are not permitted and the widths of chambers of them are equal to the river bed.

The concrete of the chamber and the embedded parts of the chamber as will as the gates with their hoist are completed in a yards where they are prefabricated. The chamber is moved in submerged state to the site. These hydraulic structures are cheaper than those that are constructed in dry sites with the diversion works.