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Daymark Locations USACE IENC [Pennsylvania]

Pennsylvania Spatial Data Access (PASDA) · 2025 Full Details

Full Details

Title
Daymark Locations USACE IENC [Pennsylvania]
Description
The identifying characteristics of an aid to navigation which serve to facilitate its recognition against a daylight viewing background. On those structures that do not by themselves present an adequate viewing area to be seen at the required distance, the aid is made more visible by affixing a daymark to the structure. A daymark so affixed has a distinctive colour and shape depending on the purpose of the aid. (IHO Dictionary, S-32, 5th Edition, 1248) 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.
Creator
Homeland Infrastructure Foundation Level Data HIFLD
Publisher
Pennsylvania Spatial Data Access (PASDA)
Date Issued
2025
Access Rights
Public
Format
File
Language
English
Date Added
November 16, 2025
Provenance Statement
The metadata for this resource was last retrieved from PASDA on 2025-11-16.

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Cite and Reference

  • Citation
    Homeland Infrastructure Foundation Level Data HIFLD (2025). Daymark Locations USACE IENC [Pennsylvania]. Pennsylvania Spatial Data Access (PASDA). https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=9045 (dataset)
  • BTAA Geoportal Link

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