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( <br />� <br />( <br />( <br />Sunrisc Sereiccs•Drainage Study <br />5. DET�NTION HYDRAULIC R�SULTS <br />DGT�NTION PIPE SIZING <br />1. HYDROG2APH RGSULT SUMMARY <br />The HYDROGRAPH RESLILT SUMMARY table and respective graphs on <br />die subsequent pages record the outflow behavior of the selected Detention <br />Strucwre in the 10-year as wcil as the 2-year and 100-year mentionecl above. <br />The results sho�v th�t the design stornis are effectively controllcd to the <br />undeveloped peak runoff condition. <br />TAI3L� 3 <br />Qundev. I-Iyd# <br />Q2 Condition 0.004 I <br />� Q10 Condition 0.028 2 <br />Q100 Condition 0.065 3 <br />Qdev. ]Iyd.#f Qout Hyd.# <br />0.068 4 0.004 7 <br />0.107 5 0.026 3 <br />0.1G5 6 0.068 9 <br />Released flows are less [han or equal to thc undeveloped condition <br />[. meeting or exceeding the design standard. Hydrographic results are <br />presented in the HYDROGRAPH SUMMARY provided an the following <br />pages. <br />L <br />! <br />( <br />d <br />2. PIPE PERFORMANCG: <br />A pond volume for the site was designed base�i on a stage-storage <br />analysis. The coi�ipute�ized analysis was calculated with the assistance of <br />the 1992 version of the "Watenvorks Program". <br />Collection and conveyance will be by Type I stoim catch basins and 12" <br />cuh�crt. Oudet hydrographs were selected to match the performance <br />criteria selected as described above. The 1�Vatenvorks program provided a <br />combination ouUet configuration that matches or exceeded the required <br />release rates. <br />�vr:sre�arv e�.crvet:us. �ec. /� '� <br />[ /3� <br />ricaen:m-_o�, <br />