Laserfiche WebLink
T_Lt- n t .... Q..l.--k Grit..;. Cl.mmam <br />-Design Criteria I <br />6—Month6-Month Storm <br />2 Year Storm <br />10 Year Storm <br />100 Year Storm <br />Detention <br />2,8141 <br />TM2 <br />8,3 <br />Volume, cf <br />et Pond <br />218141 <br />2,814t <br />2,814 <br />2,8141 <br />Volume , cf <br />Permanent <br />1815 <br />Story e, cf <br />Permanent <br />544 <br />Treatment <br />Story e, cf .' <br />i <br />Piped Stotage f <br />5,685 <br />Volume, cf <br />f=. <br />ve ope P <br />0. cfs <br />6. 6 c s <br />c s <br />Runoff Rate <br />riteua Release <br />10.06 <br />0.06 <br />0. <br />.1 <br />Rate, cfs <br />r 2,814 ct basea upon Uw" ralmart <br />2 Max. detention volume for design storm plus additional 50% <br />The City design criteria of pond travel time and length width ratio together with the <br />constrains of available area on the site restrict the design to a combined wetpond and <br />piped underground storage. The owner requirement of two separate leases for the <br />property along with serial development of the site require a stepped construction <br />sequence of all possible facilities while not being so financially burdensome that the <br />initial development can't occur. The site will then function under a joint system but with a <br />single outlet so the combined volume and control criteria are presented in Table 3 below. <br />o_ • __ o,.t.....L 1..:.d rine:nn r At..in Rummary <br />1 aul0 1 Uua w avu <br />Design Criteria <br />w wu v.......... <br />6 Mon►h Storm <br />....... — --- -- - ----- <br />2 Year Storm <br />10 Year Storm <br />100 Year storm — <br />tendon <br />6,4441 <br />6,6102 <br />8,3 <br />Volume, cf <br />--- <br />etPond <br />6,4441 <br />6,4441 <br />3,6301 <br />3,630 <br />Volume , cf <br />Permanent <br />3,222 <br />Story e, cf <br />Permanent <br />967 <br />Treatment <br />gSje-- <br />2,980 <br />6-2ff <br />Develo Peak <br />0.30 cl s <br />0.49 c s <br />81 c s <br />Runoff Rate <br />ntena a ease <br />0.063 <br />0.063 <br />0.1 <br />• <br />Rate, cfs <br />sign a ease <br />0.06 <br />o.06 <br />0.13 <br />0.37 <br />Rate, cfs <br />13,630 ct based upon u.yv- rarmau <br />2 detention volume for design storm plus additional 50% <br />3 1" minimum orifice size <br />96-016 4 Two Rivas Eagi mriug <br />