Which aspect is NOT typically included in a navigable waterway report?

The aspect that is not typically included in a navigable waterway report is historical shipping activity. Navigable waterway reports focus on current conditions and factors affecting navigation, such as environmental impact assessments, which evaluate potential effects on local ecosystems, and pipeline location data, which provides essential information regarding the positioning of pipelines in relation to navigable waters. Corrosion assessments are also relevant as they help understand the integrity and safety of structures and pipelines that may interact with the waterway.

In contrast, historical shipping activity, while potentially interesting and useful for understanding trends, is not a necessary component of navigable waterway reports. These reports are primarily concerned with current and future navigation safety and environmental considerations, rather than past shipping patterns or activities.