Road Stormwater Drainage Inlets: Hydraulic Study

Inlet Type:
Single Pit (900mm) With Grate

Capture Curves

Notes:

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

Curve Equations

Q = aXb+cX+d

Notes:

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

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%