Name File Type Size Last Modified
isolated-danger-buoy-point-usace-ienc-geojson.zip application/zip 641 bytes 10/29/2025 07:34:AM
isolated-danger-buoy-point-usace-ienc-shapefile.zip application/zip 1.6 KB 10/29/2025 06:59:AM
metadata.xml application/xml 7.5 KB 10/29/2025 06:59:AM

Project Citation: 

U.S. Army Corps of Engineers, and U.S. Dept. of Homeland Security. HIFLD Open Isolated Danger Buoy Point (USACE IENC). Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-10-29. https://doi.org/10.3886/E239370V1

Project Description

Project Title:  View help for Project Title HIFLD Open Isolated Danger Buoy Point (USACE IENC)
Summary:  View help for Summary
The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA.
Isolated Danger Buoy Point used to mark small, isolated dangers where navigable water will be found in all directions around the marked danger.

Original Distribution URL:  View help for Original Distribution URL https://hifld-geoplatform.hub.arcgis.com

Scope of Project

Subject Terms:  View help for Subject Terms Transportation - Water; Inland Electronic Navigational Chart; HIFLD Open; GIS
Geographic Coverage:  View help for Geographic Coverage United States
Time Period(s):  View help for Time Period(s) 2/9/2020 – 2/9/2020
Data Type(s):  View help for Data Type(s) geographic information system (GIS) data
Collection Notes:  View help for Collection Notes Archived from the HIFLD Open GIS data repository, which was deactivated on August 26, 2025.


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