Report InfoSWMM available capacity against theoretical flow for specified d/D
InfoSWMM provides Pipe/Conduit summary report with values for Max flow divided by "Full Flow". Here the "full flow" is based on Manning's equation for when the pipe is full. However as a sewer utility, we're not allowed to fill pipes. We must keep pipes below 80% full as a constant benchmark.
We'd prefer all our reports are compared against 0.8d/D instead of Full Flow.
You can add a new column in the SWMM5 or InfoSWMM report file. The new column can show in addition to Qfuill the Qfull at various d/D levels. A good idea but bear in mind that Qfull is based on Manning's equation and not the full St Venant solution.
Nathan Gerdts commented
This request is based on discussions with Irvine Ranch Water District.