This presentation will examine the procedures for obtaining and implementing the stormwater data for the MassGIS 3DHP project. The 3DHP data product is high quality surface water mapping derived from high-resolution LIDAR (Light Detection And Ranging) elevation data. The project connected the 3DHP surface water dataset to stormwater infrastructure datasets, enabling modeling of water diverted by inlets, pipes, and culverts and should assist municipalities in mitigating and planning for intense rainfall events. The stormwater data set will also improve stormwater infrastructure planning, design and construction going forward.
The official 3DHP dataset would include elevation derived stream data and the “connectors”. The connectors could be culverts, stormwater infrastructure, or ditches. Furthermore, MassGIS wants to aggregate municipal datasets to create a state-wide stormwater dataset as a feature data service. The feature service could be protected with login and password credent
