July 28, 2026, USGS Hydrography Community Call

The 3D Hydrography Program continues to make incremental progress. Notable progress has been made, including the release of HydroAdd3D as both an API and a web interface, the availability of Flow Network Derivative attributes in the 3DHP service, and on-going publication of new 3DHP data, including hydro-enforced DEMs. This presentation provided an overview of these topics.

Links: 

• USGS 3DHP Web Pages: https://www.usgs.gov/3D-Hydrography-Program 
• National Map Downloader site: https://apps.nationalmap.gov/downloader 
• Hydrography data download links: https://usgs.gov/NHD/DataAccess 
• National Hydrography Tools: https://www.usgs.gov/core-science-systems/ngp/national-hydrography/tools 
• Data Collaboration Announcement: https://www.usgs.gov/3d-national-topography-model/data-collaboration-announcement-portal  
• For more information about Hydrography contact: 3DHP@usgs.gov