Grate Intake Calculator

Step 1: Catchment hydraulics

Provide us with the initial values so we can determine the flow rate and speed of the surface water run-off.

Pavement Geometry

Select On-grade (1 way slope) Sag (2 way slope)

Rainfall Intensity

Refer to your local rainfall map

Select mm / hr inch / hr

Required

Crossfall (%)

For a quick result, calculations are limited to 0.5% to 3% crossfall. ACO can offer solutions up to 9% on enquiry.