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Which version of the EPA SWMM calculation engine is used by SewerGEMS and CivilStorm?
The SWMM version number used can be found by computing a model while using the Explicit SWMM solver. A text file will appear with the SWMM version number listed.
Note: future versions of the program may offer the ability to turn on or off the "Bentley Enhanced" improvements that are included on top of the respective base SWMM solver version. as well as the possibility of selecting specific legacy SWMM solver versions. Enhancement # 136686
Bentley Hydraulic and Hydrology Product
EPA SWMM Version
SewerGEMS/CivilStorm CONNECT Edition (10.00.00.40)
5.1.008
SewerGEMS/CivilStorm V8i SELECTseries 5 (08.11.05.113)
5.1.007
SewerGEMS/CivilStorm V8i SELECTseries 5 (08.11.05.58)
SewerGEMS/CivilStorm V8i SELECTseries 4 (08.11.04.54)
5.0.022
SewerGEMS/CivilStorm V8i SELECTseries 3 (08.11.03.84)
SewerGEMS V8i SELECTseries 2 (08.11.02.46 and 08.11.02.49)
5.0.018
CivilStorm V8i SELECTseries 2 (08.11.02.62 and 08.11.02.65)
SewerGEMS (08.09.26.14 and 08.09.26.17)
5.0.011
CivilStorm (08.09.26.14 and 08.09.26.17)
The EPA-SWMM solver included with SewerGEMS and CivilStorm is a "Bentley Enhanced" version, which means Bentley has added functionality so that it more seamlessly integrates with the SewerGEMS/CivilStorm data model and with other Storm-Sewer Products.
1. HEC-22 Inlet Calculations 2. Ability to compute complex pond outlet structures 3. Headloss Calculations at structures including HEC-22 and Standard Headloss methods 4. Additional detailed results 5. Integrated LID results 6. Tractive Stress Calculations 7. Hydrogen Sulfide Modelling
Troubleshooting unstable SewerGEMS and CivilStorm model results using the Explicit SWMM Solver