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<br />the levee is within the lOa-year flood elevation. Portions of <br />the levee crown are well below the 100-year flood elevation. The <br />potential damage from a flood would not likely involve nearby <br />industrial structures and warehouses, but settling basins and <br />chemical treatment basins might be vulnerable. <br /> <br />SITE N - station 383.9 to 383.7, left bank. This levee <br />system is tied into natural high ground along the riverbank at <br />both ends; however, the high ground is still below the lOa-year <br />flood elevation. The protected area appears to be old gravel <br />mining pits only. Brush and trees cover the slopes and the crown <br />throughout the length. <br /> <br />SITE 0 - station 383.6 to 383.4, left bank. This levee <br />consists of mounded, compacted soil on top of the existing bank. <br />The upstream end is tied into a high point along the bank; <br />downstream it ends as a spur. The levee crown is wel~ below the <br />lOa-year flood elevation. The levee appears to be protecting the <br />access road to active gravel mining operations. There is <br />insufficient surface stability for patrolling during floods, and <br />the crown contains numerous depressions. <br /> <br />SITE P - station 382.2, Redlands Parkway Bridge, right <br />abutment. Two spur levees protruding upstream and downstream of <br />the abutment train flows through the bridge. The levees are in <br />good condition, but they were likely designed to protect the <br />bridge abutment, not for inundation protection. <br /> <br />SITE Q - station 380.7 to 380.2, right bank. This levee <br />enclosed the old Walker wildlife Refuge pond. The pond area does <br />not hold water, it consists of thick growth of vegetation. The <br />levee ends do not appear to be tied to high ground. This area <br />has potential to be converted to a detention basin with <br />appropriate additional diking. <br /> <br />SITE R - station 377.6 to 376.4, right bank. Two levees <br />enclose areas which appear to have been old gravel pits. The <br />levees provide some degree of protection to two residential <br />houses and two ponds. The flood plain nevertheless flanks both <br />levees. A drain enters the river between the separate levees. <br />Both ponds appear to be intensively maintained as recreational <br />facilities. <br /> <br />SITE S - station 375.5 to 374.7, right bank. A levee on top <br />of existing bank protects an old gravel pit area that appears to <br />be still used periodically. The levee ends terminate on the top <br />of bank and are not tied to high ground. <br /> <br />SITE T - station 373.8 to 373.4, right bank. This is also <br />an old gravel pit area which was separated from the river by a <br />margin of land on top of which additional fill was placed. The <br />area protected is strictly gravel pits and ponds associated with <br /> <br />12 <br />