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Channel
Width
Effective
Width
Gradient
(Fall)
3,000mm long Channel
6,000mm long Channel
Flow (l/s)
Velocity (m/s)
Flow (l/s)
Velocity (m/s)
200mm
120mm
2.00
7.00
1.00
3.00
0.73
1.09
0.49
0.64
2.00
12.00
1.00
4.00
0.73
1.27
0.49
0.74
3.00
10.00
2.00
4.00
0.76
1.20
0.52
0.69
3.00
20.00
2.00
7.00
0.76
1.44
0.52
0.82
3.00
14.00
2.00
6.00
0.79
1.27
0.53
0.73
3.00
27.00
2.00
10.00
0.79
1.55
0.53
0.87
6.00
26.00
4.00
10.00
0.82
1.39
0.56
0.78
6.00
52.00
4.00
18.00
0.82
1.75
0.56
0.95
9.00
38.00
6.00
15.00
0.84
1.45
0.57
0.81
9.00
77.00
6.00
26.00
0.84
1.86
0.57
0.99
1/100
1/200
1/100
1/200
1/100
1/200
1/100
1/200
1/100
1/200
300mm
170mm
300mm
220mm
450mm
370mm
600mm
520mm
FLOW RATES
EFFECTIVE WIDTH
20MM PLUS FALL
GRATING WIDTH
GRATING DEPTH
CROSS SECTION FLOW INFORMATION DIAGRAMS
FALL
HEAD DEPTH
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