OMB control number

HydroAdd3d

OMB 1028-0129 · DOI/GS.

OMB 1028-0129

The Hydrography Addressing Tool (HydroAdd Tool) is a website being developed by the USGS National Geospatial Program, National Geospatial Technical Operations Center which will allow users to reference stream network-specific geographic locations, also known as addressing, of their own data to the National Hydrography Dataset (NHD). Users must make their geospatial data available as a web feature service.

The latest form for HydroAdd3d expires 2026-06-30 and can be found here.

Latest Forms, Documents, and Supporting Material

Document Name
Published 30 Day Notice - 1028-0129 - 90 FR 7155 - 01212025.pdf Supplementary Document
Sample Supporting Statement A_HydroAdd3d_v5.docx Supporting Statement A
HydroAdd3D Published 60-Day 89 FR 79945 10-1-2024.pdf Supplementary Document
circular-A-16.pdf Supplementary Document
Executive Order 12906.pdf Supplementary Document
Hydro Add Tool - Register, Browse, and Complete Edits Other-Workflow

All Historical Document Collections

202411-1028-001	Revision of a currently approved collection	2025-01-21
202003-1028-003 Approved with change	New collection (Request for a new OMB Control Number)	2021-08-30