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: 600mm
- Downstream transition: 600mm
- Inlet depression: 90mm
- Barrier Kerb and channel: 300mm
- Crossfall: 3%
Curve Equations
Q = aXb+cX+d
Notes
- Double Bay (1900mm)
- Without deflectors
- Upstream transition: 600mm
- Downstream transition: 600mm
- Inlet depression: 90mm
- Barrier Kerb and channel: 300mm
- Crossfall: 3%
Pictures of test
Longitudinal grade (%) with Approach flow (l/s)
Grade 0.25% & flow 241l/s
Grade 6% & flow 121l/s
Grade 10% & flow 121l/s
Grade 16% & flow 70l/s
Sag
Capture Curve
Notes
- Double Bay (1900mm)
- Without deflectors
- Upstream transition: 600mm
- Inlet depression: 90mm
- Barrier Kerb and channel: 300mm
- Crossfall: 3%
