What is the name of the waters that exist above the line of the highest ordinary flow?

The term used to describe waters that exist above the line of the highest ordinary flow is "Flood Waters." Flood waters refer to those water levels that exceed the typical flow levels of a river or stream during periods of heavy rainfall or snowmelt, impacting the surrounding land and often leading to inundation in areas that are usually dry. This distinction is important in land surveying and property law, as it helps delineate property boundaries and understand water rights in Texas.

Understanding flood waters is crucial for land use planning, floodplain management, and establishing legal water boundaries. Flood waters typically result from extraordinary weather conditions and can shift with time, contributing to both the hydrological landscape and legal considerations in property ownership and development.

Other options such as riparian waters, navigable waters, and private waters refer to specific legal definitions or classifications that do not specifically address the conditions above the line of highest ordinary flow in the same context as flood waters do, which is why they do not fit the question as accurately.