Alaska Hydrography Database – Mapping Alaska's Waters

As of July 1, 2021 the Alaska Hydrography Database is no longer supported at the University of Alaska.

For more information about hydrography (NHD, WBD, NHDPlus HR) updates in Alaska, please contact the Alaska Hydrography Technical Working Group, or refer to the following links:

U.S. Geological Survey

National Hydrography Dataset (NHD)

The National Map

Alaska Science Center Water Research

NOAA

Continually Updated Shoreline Product

Alaska-Pacific River Forecast Center

U.S. Forest Service

Tongass National Forest

Chugach National Forest

Alaska Region Channel Type Classification

Alaska Mapping & Science

Alaska Mapping Executive Committee

Alaska Geospatial Council

Interagency Hydrology Committee for Alaska

State of Alaska

Alaska Geospatial Council

Alaska Hydrography Technical Working Group

State of Alaska Open Data Geoportal

Water Resources Section

Alaska Anadromous Waters Catalog

Coastal Hazards

Drinking Water Program

Division of Water

Hydrography Data Access

To access the National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD), visit: https://apps.nationalmap.gov/downloader/#/

To access hydrography related WMS/WMTS, visit: https://apps.nationalmap.gov/services/

To download the NHDPlus HR by 4-digit Hydrologic Unit (HU4) or by 8-digit Hydrologic Unit (HU8) for Alaska: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Hydrography/NHDPlusHR/Beta/GDB/