Hello,
I can definitely help! The Esri Solutions team has created a Python tool called 'Asset Package to Geodatabase', more information can be found here:
https://solutions.arcgis.com/utilities/help/utility-network-automation/tool-reference/asset-package-...
Please note that this tool is only able to work on 'Standard' and 'Advanced' versions of ArcGIS Pro. This tool should meet your needs if you have an existing asset package populated with data that you wish to populate into a file geodatabase.
If you do not already have an existing asset package, here are the steps to follow to create the components of a UN:
If you wish to create an empty utility network(UN) schema in a file geodatabase for modeling water utilities, please follow the below steps:
1. Begin by creating a file geodatabase somewhere on the machine using the 'Catalog' pane in ArcGIS Pro. This can be done by right clicking in a folder, selecting 'New', and then selecting 'File Geodatabase'.
2. Once the file geodatabase is generated, now it is time to create the UN, structure network, and domain network.
3. Create a feature dataset inside the newly generated file geodatabase by right clicking on the geodatabase, selecting 'New', and selecting 'Feature Dataset'. Provide the feature dataset with a name and select 'Run'. The feature dataset will be created.
4. To create a UN, search the geoprocessing toolbox for the 'Create Utility Network' tool. First, provide the UN with the name of the feature dataset just created in step 3, a name for the UN itself, and the location of a bounding box polygon feature class that encompasses the extent of the network(Service Territory Feature Class). This feature class should have at least one polygon and be inside the feature dataset created in step 3. Press 'Run'.
5. At this point, there will be a utility network and structure network in the geodatabase. To add feature classes to model devices in the water network, you should utilize the 'Create Domain Network' geoprocessing tool. After this tool is complete, you will have a utility network, structure network tables(if applicable to your use case), and domain network feature classes for modeling water infrastructure.
I hope this information is helpful. Please let me know if there is anything else I can do to be of assistance. Thanks!