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

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Test ID Number Depth Length Flow Efficiency (ft) (ft) (cfs) Observed Regression UDFCD New 199 0.999 9 166.01 0.12 0.13 0.12 191 0.333 5 7.33 0.38 0.30 0.31 192 0.501 5 22.91 0.18 0.18 0.18 193 0.999 5 166.01 0.07 0.08 0.07 206 0.333 15 13.09 0.44 0.49 0.59 207 0.501 15 38.35 0.27 0.35 0.37 208 0.999 15 143.41 0.19 0.20 0.19 209 0.333 12 12.63 0.42 0.41 0.50 210 0.501 12 38.35 0.24 0.28 0.30 211 0.999 12 152.92 0.15 0.16 0.15 212 0.333 9 13.87 0.35 0.30 0.37 213 0.501 9 38.19 0.19 0.22 0.23 214 0.999 9 141.54 0.12 0.13 0.12 215 0.333 5 13.72 0.22 0.18 0.22 216 0.501 5 38.19 0.11 0.13 0.13 217 0.999 5 140.29 0.07 0.08 0.07 284 0.333 15 7.79 0.80 0.72 0.75 285 0.501 15 23.38 0.46 0.47 0.47 286 0.999 15 123.15 0.21 0.25 0.21 281 0.333 12 8.73 0.70 0.55 0.61 282 0.501 12 25.25 0.38 0.37 0.37 283 0.999 12 113.79 0.18 0.22 0.18 278 0.333 9 7.95 0.63 0.45 0.50 279 0.501 9 25.88 0.30 0.28 0.28 280 0.999 9 117.69 0.13 0.16 0.13 272 0.333 5 8.11 0.35 0.27 0.29 273 0.501 5 26.66 0.17 0.16 0.16 274 0.999 5 118.94 0.08 0.10 0.07 150
ELECTRONIC DATA SUPPLEMENT CONTENTS AND ORGANIZATION (stored on a 16-GB SDHC TM card) Folder Files and/or Sub-folders Client Final Report Microsoft Word ® (.doc) and Adobe ® Acrobat ® (.pdf) files for both single- and double-sided printing; and SureThing (.std) CD label file Analysis Microsoft Excel ® (.xls) files Data and Photographs * 0.5% long 1% cross 0.5% long 2% cross 2% long 1% cross 2% long 2% cross 4% long 1% cross 4% long 2% cross Additional model photographs Additional tests Grate-inlet combination pictures Inlet construction Sump tests *The reader is referred to the UDFCD for obtaining photographs and video documentation. 151
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HYDRAULIC EFFICIENCY OF GRATE AND C
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TABLE OF CONTENTS LIST OF FIGURES .
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LIST OF FIGURES Figure 1-1: Map of
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Figure 5-7: Predicted vs. observed
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LIST OF TABLES Table 2-1: Summary o
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LIST OF SYMBOLS, UNITS OF MEASURE,
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S c , Sc, cross slope cross (or lat
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ID mag meter No. QC ® R5 R9 R12 R1
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1 INTRODUCTION A research program w
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1-1 often require use of these thre
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2 LITERATURE REVIEW Urban storm dra
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• All grates showed patterns of i
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Q = Q w + Q s Equation 2-1 where: 2
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Inlet Name Bar P-1-7/8 Bar P-1-7/8-
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2.2.3 Curb Opening Inlets Curb open
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2.3 Manning’s Equation Uniform fl
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where: q 1 = dependent parameter; q
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Q ⎛ L L Qw ⎞ = f ⎜ , ⎟ Equa
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Headbox Pipe Network Inlets Street
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capacity. A similar study performed
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Table 3-3: Test matrix for 0.33-ft
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Table 3-5: Test matrix for 1-ft pro
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Solid Plexiglas ® was milled to pr
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Figure 3-10: Triple No. 13 combinat
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Figure 3-16: Single No. 16 combinat
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Figure 3-22: Single No. 16 combinat
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Note Safety Bar Figure 3-28: R5 wit
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Flow entering and exiting the model
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Following a standardized testing pr
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4 DATA AND OBSERVATIONS Testing res
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Figure 4-2: Type 16 combination-inl
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45 40 35 Captured flow (cfs) 30 25
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5 ANALYSIS AND RESULTS Data selecte
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likely due to the nature of the ori
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1 Observed 0.9 0.8 0.7 0.6 0.5 0.4
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Total flow (Q) is known from the ob
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Observed 1 0.9 0.8 0.7 0.6 0.5 0.4
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1 0.9 Observed 0.8 0.7 0.6 0.5 0.4
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The second Pi group is the square o
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Table 5-2: Empirical equations for
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Agreement is best at the smallest f
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Efficiency/base efficiency 2.2 2 1.
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were typically seen at higher flow
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Average difference in calculated ef
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Depth (ft) Table 5-3: Efficiency er
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test data for typical design depths
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Observed efficiency 1 0.9 0.8 0.7 0
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7 REFERENCES Bos, M. G. (1989). Dis
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(P-1-7/8 grate does not have the 10
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Figure A-3: Curved vane grate (UDFC
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Figure A-5: 30º-tilt bar grate (UD
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APPENDIX B ON-GRADE TEST DATA 93
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Test ID Number Configuration Table
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Table B-3: 2% and 1% on-grade test
Page 118 and 119: Test ID Number Configuration Longit
Page 120 and 121: Test ID Number Configuration Table
Page 122 and 123: Table B-7: Additional debris tests
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Page 126 and 127: For the additional sump tests, only
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Page 130 and 131: (a) (b) Figure D-2: Type 16 inlet s
Page 132 and 133: (a) (b) (c) Figure D-4: Type R curb
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Page 136 and 137: Extent of Flow Station (x) Position
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Page 140 and 141: Test ID Number depth (ft) Tw (ft) A
Page 142 and 143: Table F-2: Additional parameters fo
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Page 150 and 151: 132
Page 152 and 153: Plot of rstudent*pred. Legend: A =
Page 154 and 155: The REG Procedure Model: MODEL1 Dep
Page 156 and 157: Plot of logE*pred. Legend: A = 1 ob
Page 158 and 159: Plot of rstudent*pred. Legend: A =
Page 160 and 161: 142
Page 162 and 163: 144
Page 164 and 165: Test ID Number Depth (ft) Grates Fl
Page 166 and 167: Test ID Number Depth (ft) Grates Fl
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