Road Stormwater Drainage Inlets: Hydraulic Study
Inlet Type:
Double Bay (1900mm)
On-grade
Without deflectors
Capture Curves
Notes:
- Double Bay (1900mm)
- Without deflectors
- Upstream transition: 1200mm
- Downstream transition: 600mm
- Inlet depression: 70mm
- Barrier Kerb and channel- 300mm
- Extended apron-300mm
- Crossfall: 3%
Curve Equations
Q = aXb+cX+d
Notes
- Double Bay (1900mm)
- Without deflectors
- Upstream transition: 1200mm
- Downstream transition: 600mm
- Inlet depression: 70mm
- Barrier Kerb and channel- 300mm
- Extended apron-300mm
- Crossfall: 3%
Pictures & drawings of test
Grade 0.25% & flow 54l/s
Grade 0.5% & flow 51l/s
Grade 4% & flow 70l/s
Inlet drawing details
With deflectors
Capture Curves
Notes:
- Double Bay (1900mm)
- With deflectors
- Upstream transition: 1200mm
- Downstream transition: 600mm
- Inlet depression: 70mm
- Barrier Kerb and channel- 300mm
- Extended apron-300mm
- Crossfall: 3%
Curve Equations
Q = aXb+cX+d
Notes
- Double Bay (1900mm)
- Without deflectors
- Upstream transition: 1200mm
- Downstream transition: 600mm
- Inlet depression: 70mm
- Barrier Kerb and channel- 300mm
- Extended apron-300mm
- Crossfall: 3%
Pictures & drawings of test
Grade 0.25% & flow 54l/s
Grade 0.5% & flow 51l/s
Grade 4% & flow 70l/s
Inlet drawing details
Sag
Capture curve
Notes:
- Double Bay (1900mm)
- Without deflectors
- Upstream transition: 1200mm
- Downstream transition: 600mm
- Inlet depression: 70mm
- Barrier Kerb and channel- 300mm
- Extended apron-300mm
- Crossfall: 3%
