(SMP) That mark that will be found by examining the bed and banks and ascertaining where the presence and action of waters are so common and usual, and so long continued in all ordinary years, as to mark upon the soil a character distinct from that of the abutting upland, in respect to vegitation as that condition exists on June 1, 1971, as it may naturally change thereafter, or as it may change thereafter in accordance with permits issued by a local government or the department
An elevation that marks the boundary of a lake, marsh, or streambed. It is the highest level at which the water has remained long enough to leave its mark on the landscape. Typically, it is the point where the natural vegetation changes from predominantly aquatic to predominantly terrestrial.
The mark on the shores of all waters, which will be found by examining the beds, and banks, and ascertaining where the presence, and action of waters are so common, and usual, and so long continued in all ordinary years, as to mark upon the soil a distinct character.
The line to which high water normally reaches under natural conditions, but not including floods, storms, or severe meteorological conditions.
The line between upland and bottomland which persist through successive changes in water level below which the presence of water is so common or recurrent that the character of the soil and vegetation is markedly different from the upland.
The elevation marking the highest water level which has been maintained for a sufficient time to leave evidence upon the landscape. Generally, it is the point where the natural vegetation changes from predominately aquatic to upland species. For streams, the OHW is generally the top of the bank of the channel. The OHW is generally the elevation from which building and sewage setbacks are measured. OHWL means the ordinary high water level.
The line on the shore established by the fluctuation of water and physically indicated on the bank (1.5 + years return period)
Ordinary high water mark refers to the highest level reached by a body of water that has been maintained for a sufficient period of time to leave evidence on the landscape. It may be indicated by destruction of terrestrial vegetation, the presence of marks on trees (see image at right) or debris deposits. It is usually the point at which natural vegetation shifts from predominately hydrophytic (water-dependent) species to terrestrial species.