There is no special process for importing watersheds from CWMS 3.0 or newer into CWMS 3.3.1. It is recommended that you make a backup copy of the watershed before opening it in the newest version of CWMS. Model files and other configurations will be automatically updated. If there is need to import a CWMS 2.1 watershed, please contact HEC for assistance. 

Importing Individual Models and Model Alternatives

Individual models and their associated model alternatives can be imported into an existing CWMS watershed using the commands under the Import menu option, found in the Models menu of the Setup module.   

Import Menu

You can import a model that is part of another CWMS watershed or exists as a stand-alone model.

To create a new watershed from scratch, complete the following steps: 

  1. Create a New Watershed as detailed in Creating a Watershed.
  2. Import an HEC-ResSim watershed as detailed in Creating an HEC-ResSim Alternative.
    1. It is best to import the HEC-ResSim model first, as this process creates a stream alignment that is required by the CAVI. 
  3. Import an MFP alternative as detailed in Creating an MFP Model Alternative.
  4. Import an HEC-MetVue alternative as detailed in Creating an HEC-MetVue Model Alternative.
  5. Import an HEC-HMS alternative as detailed in Create a HEC-HMS Alternative.
  6. Import an HEC-RAS alternative as detailed in Creating an HEC-RAS Alternative.
  7. Import an HEC-FIA alternative as detailed in Create a HEC-FIA Alternative.
  8. Create and configure other model alternatives as desired. Model alternative creation and configuration are explained further in this section.
  9. Save the watershed.