City of Campbeltown

Inlet Type:
Double Bay (1900mm)

On-grade

Without deflectors

Capture Curves

capture curves

Notes:

  • Double Bay (1900mm)
  • Without deflectors
  • Upstream transition: 1200mm
  • Downstream transition: 600mm
  • Inlet depression: 75mm
  • Barrier Kerb and channel: 300mm
  • Extended apron: 300mm

Curve Equations

   Q = aXb+cX+d

capture equations

Notes:

  • Double Bay (1900mm)
  • Without deflectors
  • Upstream transition: 1200mm
  • Downstream transition: 600mm
  • Inlet depression: 75mm
  • Barrier Kerb and channel: 300mm
  • Extended apron: 300mm

Picture of tests

Longitudinal grade (%) with Approach flow (l/s)

Grade 0.25% & flow 48l/s

Grade 0.25% & flow 48l/sGrade 0.25% & flow 48l/s

Grade 0.25%(sag) & flow 107l/s

Grade 0.25%(sag) & flow 107l/s

Grade 0.5% & flow 69.5l/s

Grade 0.5% & flow 69.5l/sGrade 0.5% & flow 69.5l/s

Grade 2% & flow 32l/s

Grade 2% & flow 32l/s

With deflectors

Capture Curves

capture curves

Notes:

  • Double Bay (1900mm)
  • With deflectors
  • Upstream transition: 1200mm
  • Downstream transition: 600mm
  • Inlet depression: 75mm
  • Barrier Kerb and channel: 300mm
  • Extended apron: 300mm

 

Curve Equations

  Q = aXb+cX+d

capture equation

Notes:

  • Double Bay (1900mm)
  • With deflectors
  • Upstream transition: 1200mm
  • Downstream transition: 600mm
  • Inlet depression: 75mm
  • Barrier Kerb and channel: 300mm
  • Extended apron: 300mm

Picture of tests

Longitudinal grade (%) with Approach flow (l/s)

Grade 1% & flow 120l/s

Grade 1% & flow 120l/s

Grade 4% & flow 70l/s

Grade 4% & flow 70l/s

Grade 8% & flow 68.5l/s

Grade 8% & flow 68.5l/s

Grade 12% & flow 67l/s

Grade 12% & flow 67l/s

Inlet drawing details

inlet drawing details

Sag

Capture Curve

Depth of Invert
- Sag test for 1900mm inlet opening
- Capture Curves
- City of Campbeltown

capture curves

Notes:

  • Double Bay (1900mm)
  • Upstream transition: 1200mm
  • Downstream transition: 600mm
  • Inlet depression: 75mm
  • Barrier Kerb and channel: 300mm
  • Extended apron: 300mm

Areas of study and research

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