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3D Hydrography Program

The implementation of 3D National Hydrography Program (3DHP) marks the start of a new era of water data - the first systematic remapping of the Nation’s hydrography since the original USGS 1:24,000-scale topographic mapping program was active. Community-wide coordinated investments will contribute toward a consistent set of national water data to answer the most demanding water resource questions.

3D Hydrography Program FY24 Partnerships  
3D Hydrography Program FY24 Partnerships
  
3D Hydrography Program FY24 Partnerships in Alaska
3D Hydrography Program FY24 Partnerships in Alaska
FY23 Status of 3DHP Quality Data  
FY23 Status of 3DHP Quality Data
FY23 Status of 3DHP Quality Data in Alaska 
FY23 Status of 3DHP Quality Data in Alaska

 

The 3DHP will significantly improve the level of detail, currency, and content of hydrography data by deriving (1) three-dimensional (3D) stream network datasets and watersheds from high-quality 3D Elevation Program (3DEP) data and (2) other elevation derivatives to support applications like hydrologic and hydraulic modeling (Figure 1). The 3DHP will improve the ability to track information related to water as it moves through the hydrologic cycle by connecting surface-water features traditionally represented in the National Hydrography Dataset (NHD) to data about wetlands, engineered hydrologic systems, and groundwater; it will also improve the attribution of important hydrologic characteristics like streamflow permanence. 

3DHP Figure 1: Improved Alignment and feature density
Figure 1: Graphic showing the improved alignment possible in the 3D Hydrography Program by deriving hydrography data from high-quality 3DEP elevation data. 

News

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The USGS and partners launch World Lidar Day Feb. 12 at Geo Week Conference in Denver

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USGS announces elevation and hydrography data acquisition partnership opportunities.