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Hydrographic Surveys Brief

USACE MISSION STATEMENTUSACE MISSION STATEMENT

The U.S. Army Corps of Engineers’ navigation mission is to provide safe, reliable, efficient, and environmentally sustainable waterborne transportation systems (channels, harbors, and waterways) for movement of commerce, national security, and recreation.  The mission of the Galveston District Navigation Branch is to manage federal Navigation Projects along the Texas coastal region. The Galveston district hydrographic survey webpage provides the latest hydrographic survey products and raw survey data for download.

 

SURVEY MAPS

The products are reproduced from geospatial information prepared by the U.S. Army Corps of Engineers.  GIS data and product accuracy may vary.  Data may be: developed from sources of differing accuracy, accurate only at certain scales, based on modeling or interpretation, incomplete while being created of revised, etc.  Using GIS products for purposes other than those for which they were created may yield inaccurate or misleading results.  The Corps of Engineers reserves the right to correct, update, modify, or replace GIS products without notification.


 USACE HYDROGRAPHIC SURVEY MAP INDEX

National Channel Framework

Three representative survey and mapping datasets include the National Channel Framework (NCF) —an enterprise geodatabase of information on all 61 USACE-maintained high-tonnage channels —hydrographic surveys, which provide assistance in locating navigable channels, determining dredging requirements, verifying dredging accuracy, and maintaining harbors and rivers —and Inland Electronic Navigational Charts(IENC).