Sewer Network Hydrographs

This command generates the runoff hydrograph for every catch basin, inflow hydrograph for every pipe at upstream and outflow hydrograph for every pipe at downstream. If the sewer network uses Rational method to calculate the peak flow, the runoff hydrograph is calculated by Universal Rational method; otherwise, the runoff hydrograph is calculated by SCS method. The storage-indication method is used to route the inflow hydrograph through the whole network.

Select Sewer Network Hydrographs from the Network menu in the Hydrology Module. The command reads the current active sewer network file and conducts the hydraulic computation. If the computation is successful, a dialog opens with the lists of inflow and outflow hydrographs identified by the structures and pipes. Select a runoff, inflow and outflow hydrograph and click on Display button to show the hydrographs in the Hydrograph dialog.

Sewer Network Hydrograph by Carlson

Hydrograph Example by Carlson

Prompts

Sewer Network Hydrographs dialog: Fill in values.

Pulldown Menu Location: Network > Sewer Network Hydrographs
Keyboard Command: swrhyd
Prerequisite: a sewer file (.SEW), a surface file (.TIN, .GRD)...\USER\RainLib.dta, ...\USER\inlet.dta, ...\USER\pipesize.dta (mpipesize.dta in Metric unit), ...\USER\swrStruct.dta, ...\USER\paven.dta, ...\USER\pipen.dta, ...\USER\runoff.dta