## Learn About the 3D Hydrography Program

Learn More

## Contact Us

### Have a question? Ask the 3D Hydrography Program Support Team

3DHP@usgs.gov

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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.

### Data Collaboration Announcement

The USGS National Geospatial Program (NGP) collaborates with a wide range of stakeholders to share acquisition costs for topographic data in support of collective mission requirements. Building on the success of the 3DEP Broad Agency Announcement, NGP is changing its data acquisition partnership process beginning in FY 2024. 

Access the DCA portal

### Benefits and Applications

The National Hydrography Requirements and Benefits Study was performed to establish a baseline understanding of national business uses, needs, and associated benefits for national hydrography data, and to inform the design of an enhanced future program that balances requirements, benefits, and costs.

Benefits and Applications

### Other Resources

                        - National Hydrography
                        - Watershed Boundary Dataset 
                        - NHDPlus High Resolution
                        - The National Map
                        - National Geospatial Program
                        - 3D Elevation Program

View Media Details

**This map of the United States and its territories shows geographic extent of the first-ever nationally consistent hydrography data acquired from high-resolution 3D Elevation Program (3DEP) data. FY24 projects are the result of ongoing Federal coordination via the 3DHP Working Group and the Alaska Mapping Initiative.**

View Media Details

**This map of Alaska shows geographic extent of the first-ever nationally consistent hydrography data acquired from high-resolution 3D Elevation Program (3DEP) data. FY24 projects are the result of ongoing Federal coordination via the 3DHP Working Group and the Alaska Mapping Initiative.**

View Media Details

**This map of the United States and its territories shows geographic extent of the first-ever nationally consistent hydrography data acquired from high-resolution 3D Elevation Program (3DEP) data. FY23 projects are the result of ongoing Federal coordination via the 3DHP Working Group and the Alaska Mapping Initiative.**

View Media Details

**This map of Alaska shows geographic extent of the first-ever nationally consistent hydrography data acquired from high-resolution 3D Elevation Program (3DEP) data. FY23 projects are the result of ongoing Federal coordination via the 3DHP Working Group and the Alaska Mapping Initiative.**

 

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. 

View Media Details

## News

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

February 9, 2024

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

USGS announces elevation and hydrography data acquisition partnership opportunities.

September 22, 2023

####   USGS announces elevation and hydrography data acquisition partnership opportunities.

### Contacts

#### 3D Hydrography Program 

##### General Contact

3D Hydrography Program

3DHP@usgs.gov

#### Questions related to the 3DHP DCA 

##### General Mailbox

3D Hydrography Program

3dhp_dca@usgs.gov

### Quick Links

                        - Alaska Mapping 
                        - User Engagement Office 
                        - SeaSketch U.S. Mapping Coordination