Page 41 - Oxford City SuDS DESIGN & EVALUATION
P. 41

A flow control generally defines the                   Concept Design drawings should identify
      downstream end of a sub-catchment, with                sub-catchment boundaries with associated
      the flow control situated at the lowest                storage and flow control locations
      topographical point within the sub-                    throughout the development.                           Concept Design
      catchment in locations that are accessible for
      inspection and maintenance.






                                                                                      Flow control with
                                                                                      contolled discharge
                                                                                      from one catchment to
                                                                                      the next


                                                                  C1






                                                                                      C2

                                                       C3


                                                                                                                   36

                              C4














      Sub-catchments are generally defined by flow
      controls. Flows are conveyed from one sub-
      catchment to the next.





                                                   Design Note:
          Integrating storage within sub-catchments, as part of site layout, greatly reduces the land
          take requirement for attenuation, by exploiting the inherent storage capacity of individual
                                                  SuDS features.



      Oxford City Council SuDS D & E Guide                                                                    © 2018 McCloy Consulting & Robert Bray Associates
   36   37   38   39   40   41   42   43   44   45   46