SWMM 4 B9 Hydrograph File
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SWMM 4 file must have extension .B9.  SWMM input file should contain B9 line with directions to write to a text hydrograph file as in this example:

 

SW 1 8 9 14 20

MM  4 12 13 14 15

@ 14 Extran.B9

$ANUM

$EXTRAN

A1 

A1 

B1 1.3e4  5 10  0  -24 0 1  -19650716 

B2 0 1 25  0  0    

B3 0 0 0 0 0           

*  NOFLOW   NOFDUP IFINTER  FLOWMIN  FLOWOUT1  FLOWOUT2 etc.

*  Save WWTP flows every 15 minutes

B9 5   0      60       0   'PUMP  #1' 2801 5901 6901 7388

 

 

The .B9 file should look like this:

 

FLOWS IN CFS

 MO DY YEAR  HOUR  DT(SEC)   FLOWS IN CHANNEL NOS.:

                             PUMP#1      2801          5901          6901          7388      

  0  0    0  0.000     0.    0.0000E+00    0.0000E+00    0.0000E+00    0.0000E+00    0.0000E+00

  7 16 1965 21.750   300.    2.1874E+01    0.0000E+00    0.0000E+00    1.8762E+01    0.0000E+00

  7 16 1965 21.833   300.    2.6602E+01    0.0000E+00    0.0000E+00    2.9578E+01    0.0000E+00

  7 16 1965 21.917   300.    3.0073E+01    0.0000E+00    0.0000E+00    3.3148E+01    0.0000E+00

  7 16 1965 22.000   300.    3.2289E+01    0.0000E+00    0.0000E+00    3.7068E+01    0.0000E+00

  7 16 1965 22.083   300.    3.3000E+01    4.9103E-02    0.0000E+00    4.4931E+01    0.0000E+00

  7 16 1965 22.167   300.    3.3000E+01    3.2015E+00    0.0000E+00    6.1740E+01    2.8649E-01

 

There should not be any spaces in structure names. The user can edit this file manually before reading it into NetSTORM if needed.