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Discharge Tables

When using the discharge tables for the HS / H / HL flumes it's important to remember that the tables are calculated to the top of the flume. This differs from the flow tables for most other flumes, where there is freeboard above the maximum head for the flume.

0.4-foot HS
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.00016 Minimum Flow Rate (l/s) 0.0045
Maximum Head (ft) 0.39 Maximum Head (m) 0.1189
Maximum Flow Rate (cfs) 0.0803 Maximum Flow Rate (l/s) 2.274
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table Use with caution on sanitary flows
0.6-foot HS Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0002 Minimum Flow Rate (l/s) 0.0065
Maximum Head (ft) 0.59 Maximum Head (m) 0.1798
Maximum Flow Rate (cfs) 0.2210 Maximum Flow Rate (l/s) 6.259
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table Use with caution on sanitary flows
0.8-foot HS Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.00030 Minimum Flow Rate (l/s) 0.0085
Maximum Head (ft) 0.79 Maximum Head (m) 0.2408
Maximum Flow Rate (cfs) 0.4570 Maximum Flow Rate (l/s) 12.94
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table Use with caution on sanitary flows
1.0-foot HS Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.00037 Minimum Flow Rate (l/s) 0.0105
Maximum Head (ft) 0.99 Maximum Head (m) 0.8030
Maximum Flow Rate (cfs) 0.8030 Maximum Flow Rate (l/s) 22.74
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table Use with caution on sanitary flows
0.5-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0004 Minimum Flow Rate (l/s) 0.0113
Maximum Head (ft) 0.49 Maximum Head (m) 0.1494
Maximum Flow Rate (cfs) 0.3310 Maximum Flow Rate (l/s) 9.374
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table Use with caution on sanitary flows
0.75-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0006 Minimum Flow Rate (l/s) 0.0170
Maximum Head (ft) 0.75 Maximum Head (m) 0.2286
Maximum Flow Rate (cfs) 0.9570 Maximum Flow Rate (l/s) 27.10
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
1.0-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0007 Minimum Flow Rate (l/s) 0.0198
Maximum Head (ft) 0.99 Maximum Head (m) 0.3018
Maximum Flow Rate (cfs) 1.920 Maximum Flow Rate (l/s) 54.37
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
1.5-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0011 Minimum Flow Rate (l/s) 0.0312
Maximum Head (ft) 1.49 Maximum Head (m) 0.4542
Maximum Flow Rate (cfs) 5.33 Maximum Flow Rate (l/s) 150.9
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
2.0-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0014 Minimum Flow Rate (l/s) 0.0396
Maximum Head (ft) 1.99 Maximum Head (m) 0.6066
Maximum Flow Rate (cfs) 10.98 Maximum Flow Rate (l/s) 311.0
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
2.5-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0018 Minimum Flow Rate (l/s) 0.0510
Maximum Head (ft) 2.49 Maximum Head (m) 0.7590
Maximum Flow Rate (cfs) 19.40 Maximum Flow Rate (l/s) 549.4
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
3.0-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0021 Minimum Flow Rate (l/s) 0.0595
Maximum Head (ft) 2.99 Maximum Head (m) 0.9114
Maximum Flow Rate (cfs) 30.40 Maximum Flow Rate (l/s) 860.9
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
4.5-foot H Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0031 Minimum Flow Rate (l/s) 0.0878
Maximum Head (ft) 4.49 Maximum Head (m) 1.3686
Maximum Flow Rate (cfs) 84.00 Maximum Flow Rate (l/s) 2,379
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
3.0-foot HL Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0058 Minimum Flow Rate (l/s) 0.1639
Maximum Head (ft) 3.00 Maximum Head (m) 0.9144
Maximum Flow Rate (cfs) 57.12 Maximum Flow Rate (l/s) 1,618
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table  
4.5-foot HL Flume
Minimum Head (ft) 0.02 Minimum Head (m) 0.0061
Miniumum Flow Rate (cfs) 0.0050 Minimum Flow Rate (l/s) 0.1416
Maximum Head (ft) 4.00 Maximum Head (m) 1.2192
Maximum Flow Rate (cfs) 117.1 Maximum Flow Rate (l/s) 3,316
Equation=cfs, ft see table
Equation=l/s, m see table
Download The Full Table