HI Matthew,
Siteworks does not currently support utility networks. It's something on the roadmap for better support to be able to visualize, query, stake, and "inspect" a TBC utility model, but for now there's not much that Siteworks is able to do with the network, other than visualize and stake the trench surfaces if you include those in the design...
Others smarter than me in the community can probably describe some of the more value added uses of utility networks in TBC.
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Steve DiBenedetto
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