Editing the National Hydrography Dataset
A Tool for Local Water Users and Managers
The National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data that contains information about surface water features such as lakes, ponds, streams, rivers, springs and wells. This dataset is free, and complete at the 1:24,000 and 1:100,000 scales. For NHD data and more information about the NHD visit United States Geological Survey NHD website. One of the strength of the NHD is its Stewardship program, where States can submit edits to the USGS and improve the NHD. The Idaho Department of Water Resources functions as the NHD Steward in Idaho. More information about the NHD in Idaho can be found here.
Incorporating Local Data in the NHD Provides Better Data for All
Water managers, be it on a local, municipal, or regional level, rely on accurate hydrographic data for planning, modeling and other tasks. Currently, much of this data resides “in the heads” of local water managers, as well as on paper maps maintained by various local water managers. The goal of this project is to develop tools that make it easy for all water managers and other people with hydrological knowledge to provide simple data edits that need to be made the 1:24,000 NHD to IDWR over the internet using browsers such as Microsoft Internet Explorer or Mozilla Firefox.
Description of the Tools
This web mapping application does not require any GIS experience or GIS software. The goal of this application is to let users suggest changes, either changes in geometry or changes in names, to existing hydrological data. After you have completed and saved your suggested changes, the NHD Steward at IDWR will be notified so that ultimately your changes will be reflected in the NHD. Agencies owning ArcGIS software may elect to use Customized Editing Tools instead of this web application to submit edits to the NHD Steward. More information about this tool can be found here.
This application is now in "Beta testing." It was written for the FireFox and Internet Explorer browsers but should
work with others.
Log on to use the NHD Editor: