Printed from: https://conservationhandbooks.com/waterways-wetlands/ditches-and-pipes/ditches/
Ditch design The design of a ditch is determined by the following factors: Depth The depth should be appropriate to the function. A simple ditch to intercept runoff may only need to be 150mm (6″) deep, although it may need annual clearance to prevent it silting up. Most interceptors should be 375-600mm (15-24″) deep, while...