Laserfiche WebLink
<br />. .. ".~. <br /> <br />The recreation criteria may be graphed with depth (or velocity) on <br />the X axi s and the des i rabil i ty of certai n depths for the recreation <br />activity in question along the Y axis (Figure 2). <br /> <br /> <br />Most <br /> <br />t <br /> <br />... <br /> <br /> <br />.' <br />. <br /> <br />>- <br />I- <br />- <br />...J <br />- <br />co <br />ex: <br />c:: <br />- <br />VI <br />W <br />Cl <br /> <br /> <br />SAFETY <br />MlNlMUM B <br /> <br />Least <br /> <br />2 <br /> <br />SAFETY <br />D MAXIMUM <br /> <br />8 <br /> <br />10 <br /> <br />4 6 <br />FEASIBLE DEPTH <br /> <br />Figure 2. Desirability of stream depth graph for a <br />hypothetical recreation activity. <br /> <br />The physical mlmmum is shown on the graph as "A" and is the least <br />desirable depth at which the activity is possible. Preferred low flows <br />, are the least depth at which the activity can be participated in safely <br />is shown as "B" on the graph. Safety values are somewhat arbitrary <br />because they depend upon experience and skill of the recreationist. In <br />this context, it is assumed that it is an average figure, and that up to <br />50 percent or the potential participants will find depths between "A" <br />and "B" usable. Point "e" on the graph indicates the most desirable or <br />optimum depth and it is assumed that 100 percent of the potential parti- <br /> <br />11 <br />