Room for more action in the London Sustainable Drainage Action Plan (SuDS)

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Types of Stormwater Inlets from HEC12 and HEC22

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Note :   Types  of  Stormwater   Inlets  from  HEC12  and  HEC22 Stormwater   Inlets  consist of four main  types  ( http://onlinemanuals.txdot.gov/txdotmanuals/hyd/storm_drain_inlets.htm ) with most common shown in Figure 1. 1.    Curb opening  inlets  either at a sag or continuous on the street, 2.    Grate  Inlets  either at a sag or in combination with a Curb opening 3.    Slotted Drains in parking lots which can be simulated as curb opening  inlets  and 4.    Combination  inlets  either at a sag or continuous on the street which combine a curb opening inlet and a grate inlet for the  stormwater  runoff A sag inlet is the end of the line for the runoff because the flow and its debris load have no other place to go as described in the  HEC-22  and  HEC-12  manuals and a continuous grade inlet...
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