What does the mean high water line refer to?

The mean high water line refers to the mark of high tide during normal weather conditions. It is specifically defined as the average level of high tides over a significant period of time, typically 19 years, accounting for variations due to both seasonal changes and astronomical influences. This line is crucial in various legal and environmental contexts, particularly in determining the boundaries between private property and public lands, as well as in assessing property rights relating to water bodies.

Understanding the mean high water line is essential for property owners and title insurers, as it plays a significant role in defining riparian rights and the rights of ownership over waterfront properties. It distinctly represents the limits of landowners' rights regarding access to and usage of waterfront areas.