Attenuation tanks are used to initially to collect excess water in a temporary storage chamber and then to slowly discharge this water in a controlled manner back into the water course or drainage system. The amount of discharge will vary depending whether it is a brown or greenfield site and the Dry Water Flow calculations.
Moore Concrete have developed a method of casting our box culverts which incorporates a sloping soffit, that is cast in a single operation with the main Culvert Unit. This single cast attenuation tank design offers a more robust alternative to a secondary cast. Moore Concrete has developed and designed this solution for recently secured attenuation projects. These units come with end walls, access points and pipe openings.