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Road Stormwater Drainage Inlets: Hydraulic Study

Inlet Type:
Single Pit (900mm) With Grate

Capture Curves

Single pit with grated inlet
Single pit with grated inlet

Notes:

  • Single Pit with Grated inlet (900mm)
  • Without deflectors and transition
  • Barrier Kerb and channel: 450mm
  • Crossfall: 3%

Curve Equations

Q = aXb+cX+d

curve equations

Notes:

  • Single Pit with Grated inlet (900mm)
  • Without deflectors and transition
  • Barrier Kerb and channel: 450mm
  • Crossfall: 3%

Pictures & drawings of test

Sag

Single pit without Grate

Capture Curves

Depth of invert
- Sag test for single pit
- Capture curve
- City of Adelaide

Notes:

  • Single Pit (900mm)
  • Without grate
  • Without deflectors and Transition
  • Barrier Kerb and Channel: 450mm
  • Crossfall: 3%

Double pit without Grate

Capture Curves

Depth of invert
- Sag test for double pit
- Capture curve
- City of Adelaide

Notes:

  • Double Pit (1900mm)
  • Without grate
  • Without deflectors and Transition
  • Barrier Kerb and Channel: 450mm
  • Crossfall: 3%