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Overhead Cables USACE IENC

2025 - Homeland Infrastructure Foundation Level Data HIFLD


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ABSTRACT
An overhead cable is an assembly of wires or fibres, or a wire rope or chain, which is supported b y structures such as poles or pylons and passing over or nearby navigable waters. (Hydrogra phic Service, Royal Australian Navy). 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.