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

Test ID
Number
Configuration
Table B-2: 0.5% and 2% on-grade test data
Longitudinal
Slope
(%)
Cross Flow
Slope Depth
(%) (ft)
Prototype
Total
Flow
(cfs)
Efficiency
(%)
Top
Width
at
Control
(ft)
Top
Width
Downstream
of
Inlets
(ft)
74 Triple No. 16 0.5 2 0.333 3.4 63.6 14.0 13.6
75 Triple No. 16 0.5 2 0.501 11.2 47.2 18.2 13.8
76 Triple No. 16 0.5 2 0.999 93.8 28.2 18.2 18.2
77 Double No. 16 0.5 2 0.333 3.3 57.1 14.0 13.4
78 Double No. 16 0.5 2 0.501 11.2 40.3 18.2 14
79 Double No. 16 0.5 2 0.999 94.5 19.8 18.2 18.2
80 Single No. 16 0.5 2 0.333 3.7 50.0 14.0 13.6
81 Single No. 16 0.5 2 0.501 11.5 35.1 18.2 14
82 Single No. 16 0.5 2 0.999 95.6 17.0 18.2 18.2
83 Single No. 16, Grate only 0.5 2 0.501 11.4 35.6 18.2 13.9
84 Single No. 16, Grate only 0.5 2 0.999 94.3 14.9 18.2 18.2
85 Single No. 16, grate and 4-in. opening 0.5 2 0.501 11.2 34.7 18.2 14
86 Single No. 16, grate and 4-in. opening 0.5 2 0.999 95.4 16.2 18.2 18.2
87 Single No. 16, Debris Test 1 0.5 2 0.333 3.4 50.0 14.0 13.4
88 Single No. 16, Debris Test one 0.5 2 0.501 10.9 34.3 18.2 13.9
89 Single No. 16, Debris Test two 0.5 2 0.333 3.3 47.6 14.0 13.6
90 Single No. 16, Debris Test two 0.5 2 0.501 10.9 32.9 18.2 13.9
91 Single No. 13 0.5 2 0.333 3.0 63.2 12.0 13.4
92 Single No. 13 0.5 2 0.501 10.1 38.5 18.2 18.2
93 Single No. 13 0.5 2 0.999 95.1 13.1 18.2 18.2
94 Single No. 13, Debris Test one 0.5 2 0.333 3.7 45.8 14.0 13.6
95 Single No. 13, Debris Test one 0.5 2 0.501 11.8 32.9 18.2 14
96 Single No. 13, Debris Test two 0.5 2 0.333 3.4 54.5 14.0 13.5
97 Single No. 13, Debris Test two 0.5 2 0.501 12.0 33.8 14.0 13.7
98 Single No. 13, Grate only 0.5 2 0.501 10.4 34.3 18.2 13.9
99 Single No. 13, Grate only 0.5 2 0.999 93.2 11.0 18.2 18.2
100 Single No. 13, Grate and 4-in. Opening 0.5 2 0.501 11.2 34.7 18.2 13.9
101 Single No. 13, Grate and 4-in. Opening 0.5 2 0.999 94.3 12.7 18.2 18.2
102 Single No. 13, Curb opening only 0.5 2 0.501 11.2 23.6 18.2 14
103 Single No. 13, Curb opening only 0.5 2 0.999 94.3 7.1 18.2 18.2
104 Double No. 13 0.5 2 0.333 3.3 61.9 14.0 13.3
105 Double No. 13 0.5 2 0.501 11.2 44.4 18.2 18.2
106 Double No. 13 0.5 2 0.999 98.2 20.5 18.2 18.2
107 Triple No. 13 0.5 2 0.333 3.6 73.9 14.0 13.3
108 Triple No. 13 0.5 2 0.501 13.4 50.0 18.2 18.2
109 Triple No. 13 0.5 2 0.999 108.3 43.3 18.2 18.2
110 5-ft Type R (R5) 0.5 2 0.333 3.0 57.9 14.0 13.3
111 5-ft Type R (R5) 0.5 2 0.501 11.1 39.4 18.2 13.8
112 5-ft Type R (R5) 0.5 2 0.999 93.2 11.7 18.2 18.2
113 5-ft Type R (R5), w/ 4-in. Curb Opening 0.5 2 0.501 11.2 38.9 18.2 13.8
114 5-ft Type R (R5), w/ 4-in. Curb Opening 0.5 2 0.999 94.3 9.8 18.2 18.2
96