Green Stormwater Infrastructure 3D Models

[jonabrow]

Are there any examples of open geospatial data used to create 3D models at the parcel lot level to optimize green infrastructure to reduce runoff and extend the lifecycle of aging stormwater systems at the municipal level? Thanks.

[bo-lu]

Hi jonabrow,

In terms if 3D models, you are probably looking for LIDAR-based point cloud datasets. One model which you may find useful is the High Resolution Digital Elevation Model (HRDEM) which is offered at the 1m and 2m resolution for specific regions. Since water runoff has an elevation component, it may be useful.

For the second part of your question, this seems to be a question better suited for municipalities and requires information about existing infrastructure (i.e., water and sewer lines). This information is likely not open data.

[jonabrow]

So if the municipality does provide the sewer line data as a geojson file, could we combine that with the HRDEM to model rain runoff for evaluating options as part of a municipal environmental assessment? For example, doing a cost benefit analysis of green stormwater infrastructure to mitigate climate change.