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r <br /> 1 <br /> the spillway crest is at 106.5 and the bottom of the pond is at 100.0 The volume reserved for <br /> sediment is 0.05 AF and corresponds to elevation 100.3. All volumes were calculated using the <br /> same techniques as described for the East Pond in TR2. <br /> The East Pond currently has a volume of 1.36 AF while the required volume is only 0.05 AF. <br /> Thus, no enlargement is required. The embankments of the East Pond will be reshaped to meet <br /> the 5:1 slope requirements and regulation outlet works installed. <br /> Outlet Works <br /> The outlet works for the East and West Pond will be constructed as describe in TR2. Reduction <br /> of the peak discharge correspondingly results in reduced spillways size. The peak discharge for <br /> the West Pond is 8 cfs which requires a weir notch 6 feet long and 0.5 feet high. Peak discharge <br /> for the East Pond is less than 1 cfs resulting a weir with a crest length of 2 foot and height of <br /> 0.3 feet. One foot of freeboard is required above the high water line for each pond. <br /> The low level outlets also remain basically the same as described in TR2. Orifice diameters <br /> are reduced to 2.5 inches for the West Pond and 1.5 inches for the East Pond. Documentation <br /> is included in appendix 7. <br /> 6 <br />