What's New – Modelling stormwater networks in Scalgo Live

Nov 26, 2025

Stormwater systems are complex by nature, spanning everything from streams, swales and ponds on the surface to large underground drainage networks. With the latest developments in Scalgo Live, these worlds can now be explored together. Our latest release expands our tooling around subsurface structures with the ability to connect subsurface paths and thereby create larger systems of subsurface structures and stormwater networks.  

For more information, please see the accompanying blog post and our new getting started video on the subject. There is also an upcoming webinar that will dive deeper into the motivation, design and use cases around this new feature.

Here we have modeled a stormwater network for a small neighborhood. We have then computed the Flash Flood Map and used a watershed query on the network. The query reveals the subwatershed of all the individual sinks in the network. This information is readily available for download for use in other tools.

In addition to the ability to create stormwater networks, the release has the following implications for existing features in Scalgo Live:

  • To simplify the user interface, we have removed the standalone "subsurface volume" tool. Instead, this functionality is now available through the "point" option in the consolidated subsurface tool.
  • To make it easier to capture relevant flow paths into subsurface structures, we have introduced the notion of an inlet radius that allows a subsurface path to collect water from an area adjacent to the inlet itself.  This feature is not only available on stormwater networks, but can also be used on traditional subsurface paths.

If you want to start using the new feature right away, we suggest you dive in to the documentation section for subsurface structures and the section for stormwater networks.