Hydraulic Efficiency of Grate and Curb Inlets - Urban Drainage and ...

Table B-3: 2% and 1% on-grade test data
Test ID
Number
Configuration
Longitudinal
Slope
(%)
Cross
Slope
(%)
Flow
Depth
(ft)
Prototype
Total
Flow
(cfs)
Efficiency
(%)
Top
Width at
Control
(ft)
Top
Width
Downstream
of Inlets
(ft)
125 15-ft Type R (R15) 2 1 0.333 14.8 44.2 18.2 16
126 15-ft Type R (R15) 2 1 0.501 33.5 30.2 18.2 18.2
127 15-ft Type R (R15) 2 1 0.999 178.5 17.6 18.2 18.2
128 12-ft Type R (R12) 2 1 0.333 13.4 43.0 18.2 16
129 12-ft Type R (R12) 2 1 0.501 32.9 27.0 18.2 18.2
130 12-ft Type R (R12) 2 1 0.999 176.1 14.7 18.2 18.2
131 9-ft Type R (R9) 2 1 0.333 13.4 36.0 18.2 16
132 9-ft Type R (R9) 2 1 0.501 29.6 22.6 18.2 18.2
133 9-ft Type R (R9) 2 1 0.999 173.0 11.4 18.2 18.2
134 5-ft Type R (R5) 2 1 0.333 13.1 25.0 18.2 16
135 5-ft Type R (R5) 2 1 0.501 28.4 16.5 18.2 18.2
136 5-ft Type R (R5) 2 1 0.999 179.0 7.6 18.2 18.2
137 Triple No. 16 2 1 0.333 13.2 44.7 18.2 16
138 Triple No. 16 2 1 0.501 39.9 30.9 18.2 18.2
139 Triple No. 16 2 1 0.999 155.1 23.6 18.2 18.2
140 Double No. 16 2 1 0.333 14.7 36.2 18.2 16
141 Double No. 16 2 1 0.501 32.7 27.1 18.2 18.2
142 Double No. 16 2 1 0.999 177.1 18.7 18.2 18.2
143 Single No. 16 2 1 0.333 15.3 28.6 18.2 16
144 Single No. 16 2 1 0.501 34.0 20.6 18.2 18.2
145 Single No. 16 2 1 0.999 176.6 12.3 18.2 18.2
146 Single No. 13 2 1 0.333 15.9 27.5 18.2 16
147 Single No. 13 2 1 0.501 33.7 20.4 18.2 18.2
148 Single No. 13 2 1 0.999 166.6 9.4 18.2 18.2
149 Double No. 13 2 1 0.333 14.3 33.7 18.2 16
150 Double No. 13 2 1 0.501 33.7 23.6 18.2 18.2
151 Double No. 13 2 1 0.999 176.6 13.3 18.2 18.2
152 Triple No. 13 2 1 0.333 13.1 42.9 18.2 16
153 Triple No. 13 2 1 0.501 31.0 28.6 18.2 18.2
154 Triple No. 13 2 1 0.999 177.7 17.7 18.2 18.2
98