Laserfiche WebLink
� <br />Ashbyrn To�vnhomc; <br />6. HYDRAULI(� ANALYSIS <br />p. 1 Wdro r�Ph Result Sumnrv�� <br />The }IYDROGRAPII RGSU1:1' SU\q�4��RY tablc and respccti�•c graphs <br />on tlic suL•�cqucnt pages record thc outllo�v bchavior of thc scicctcd llctcntion <br />Structurc in �lic 2-ycar, 10-ycar and 100-ycar 24-hour stomi cvcnts <br />respectively.'� hc results show that the design storms are effoctiecly controlled <br />to the respecti��; undeveloped pcak runolTconditions. <br />13. Vaull Perfonr�.i:•.��: <br />Undc;ground Vault storagc lor thc sitc �cas dcsigncd bascd un .i stagc- <br />slorage analysis calculatcd by thc Natcr���orks 1'rogram, b}' Engcnious <br />S��stcros, Ina Convcyancc will bc by storm pipcs connccted into thc Vault t�nd <br />�� ill relcasc allon�cd ilo�vs via downstrcam culvcrt convc)'ancc through lhc <br />stonu s)'stem to ihe south toward I;vcrett N1a11. <br />� OuUct hydrographs �vcre scicctcd to match thc performancc crilcria scicctcd <br />as descriUcd above. 'Che Nalerworks program providcd u combination outict <br />configuration plus inliltration outllo��� that m.�tchcs or escccdcd thc rcquircd <br />rcleasc ratcs. <br />C. Dctention Pond Sizing Calculatiun: <br />folal required live storagc within thc pond per City of I:��crctt: <br />Q10 storagc = 791.0 cf <br />Q100 storagc = 1,008•0 cf <br />Q 100 storagc =1,008 lt * 1.36"/, = 1,371 cf <br />'1'hc design 100-ycar storagc volumc is givcn in thc Lcvcl Pool <br />Summ:tr}' ���r thc Cit}' oC I?�'crctt Standards. <br />q <br />\1� I?I O�l-?-41-IS <br />