Introduction
This Google Group contains a SWMM 4 to SWMM 5 Conversion Program that can be used to convert SWMM 3, SWMM 3.5 and SWMM 4 data files to SWMM 5.
The Visual Basic code is also included as a downloadable zip file.
This version of the converter has added features for converting SWMM
3.05, SWMM 3.5 and SWMM 4 Transport and Storage Treatment files as well fixes for the import of files that use the JELEV option and open channel cross section data.
Another SWMM Conversion Web Site and Further Information
SWMM5 Google Site
A few other changes are:
- Intial depth adjustment for Y0 fixed.
- E2 line depth adjustment altered for no E2 lines with no data.
- defaults for PCTZER and REGEN
- account for type 27 elements in the Transport conversion
- E3 instead of E2 for the reading of Runoff Hyetographs
- Bridge data reading and some translation in SWMM 5
- add the reading of SWMM 3.5 Extran files
- use the actual invert and not the ground elevation for D1 lines
- Fix for the translation of E2 lines from SWMM 4 to SWMM 5
- Transport Table Fix for G lines of SWMM 4
- export vertices for multiple conduits
- default wet and dry step for Transport
- no more airtemp export
- do not print out the rainfall time series name called Series
- RUNOFF_REGEN export changes for new SWMM 5 format
- substitute the NGA node if a GA line with a node number was found' on the GA line of SWMM 3
- G1 export of a default weir width of 1
- TRIANGULAR weir export adjustment
- IRREGULAR shape export adjustments
- rectangular closed not rectangular for exported data
- flip width and depth in the export for trapezoidal data from Runoff
- default x, y coordinates for runoff nodes if none available
- GEOM3 is a double and not a string in the reading of Transport data
- rtk pattern export adjustment for SWMM 5
- shorten the orifice name to OR ; shorten the orifice name getting rid of the number; find duplicate orifices
- shape = "FILLED_CIRCULAR" for SWMM 4 Sedi
- export dhmin in the first column of the snowpack data; add the correct forms of tbase to the saved swmm 5 file
- export the FX line data
- shorten the pump name to PUMP; shorten the pump name getting rid of the number and find duplicate pumps
- ADD the export of user comments from runoff
- add the input of pz from the H1 lines of Runoff
A new look to the converter....

New Radio Buttons for Converting SWMM 3 OR SWMM 4 Files.
Other SWMM Related Websites
SWMM 3 and 4 Conversion to SWMM 5
SWMM 4 and SWMM 5 Information
SWMM 5 Other Information
SWMM 3,4 to 5 Converter Interface
The
SWMM 3 and SWMM 4 converter can convert up to two files at one time to
SWMM 5. Typically you would convert a Runoff and Transport file to SWMM
5 or a Runoff and Extran File to SWMM 5. If you have a combination of a
SWMM 4 Runoff, Transport and Extran network then you will have to
convert it in pieces and copy and past the two data sets together to
make one SWMM 5 data set.
The x,y coordinate file is only necessary if you do not have existing x, y coordinates on the D1 line of the SWMM 4 Extran input data set.

You can use the command File=>Define Ini File to define the location of the ini file. The ini file will save your conversion project input data files and directories.

You can use the command File=>Define Your Text Editor to define the location of the text editor program. The ini file will save your conversion project editor name.

You can get a copy of the latest SWMM 3,4 to 5 Converter Here..