Hydraulic capacity of drainage channels with lateral inflow

Drainage channels are one of the most common means of draining run-off from paved areas such as car parks, pedestrian precincts, roads and airports. This report describes a study carried out by HR Wallingford with the following objectives: 1. To obtain data on the flow and self-cleansing capacities of drainage channels commercially available in the UK; 2. To develop a general numerical method for predicting the hydraulic capacity of the channels; 3. To make recommendations on how the results should be incorporated in a relevant British or European Standard.