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pf_02820
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Entry Properties
Last modified
7/17/2007 12:13:02 PM
Creation date
12/8/2004 1:19:45 PM
Metadata
Fields
Template:
Planning Files
Planning Files - Planning File #
2820
Planning Files - Type
Interim Use Permit
Address
543 LARPENTEUR AVE W
Applicant
RAMSEY COUNTY HAZARDOUS WAS
Status
APPROVED
PIN
102923240070
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<br />CHARLES W. PLOWE <br />CONSULTING ENGINEER <br />9180 Lexington Ave. N.E. <br />Circle Pines. MN 55014 (Ph: 785-1(43) <br /> <br />0/-/7-7>) <br />POND SIZING - WORKSHEET . <br /> <br />(( 05 E7TJwJ..! )?/1J6 E <br />~.P <br /> <br /> <br />15 m;n 30 min 60 min 2 hr 12 hr 24 hr <br /> <br />- <br /> <br />Storm Duration <br /> <br />Precipitation. P (ft) <br />100 year <br /> <br />0.15 <br /> <br />0.19 <br /> <br />0.25 <br /> <br />0.29 0.43 <br /> <br />0.49 <br /> <br />Precipitation, P (ft) <br />. year <br /> <br />Intensity (i~/hr) <br />100year <br />year <br /> <br />7.0 <br /> <br /> <br /> <br />100 Year Storm <br /> <br />.,^- <br />",' <br />-v( <br />-r e fI.-, <br />~t:l'i~'" <br /> <br />r =- ~ + 0" c,.(.1 x S ec,.~ $) = <br />J.d.4~ 41 S-(,D ) <br />.~ O.~~ 0.97 I.S"J <br /> <br />II1+{ClIV <br /> <br />Volume of Runoff <br />CPA (acre-ft) <br /> <br />G.4 1':2.. I <br />- <br /> <br />+; <br /> <br />.f' <br /> <br />(p.7tx }7'i~ 01 ume of Di scharge* - 0.14- o.~fo 6.7J. 13,t <br />43~bO (acre-ft) &J4IV'{ t Q~f 1./ :l <br />- - <br /> Required Storage o ,2f; <br /> Volume (acre-ft) ~ 0.34- 0.4/ D.39 - - <br /> <br />Y~ar Storm <br /> <br />Volume of Runoff <br />CPA (acre-ft) <br /> <br />- <br /> <br />Volume of Discharge* <br />Qt (acre-ft) <br /> <br />.- <br /> <br />Required Storage <br />Volume (acre-ft) <br /> <br />*Assume one~half of the undeveloped rate of runoff for. full duration <br />of storm. h. =. M.,,;t ELFV~ 90-0 hI;~ elr'~~ P?7.R" <br /> <br />J.J 1-, Dtr.... OtA..Tle+ 9 /JIlirt)( d.~:.ctu.."e:: J l>>- C-f-s . X <br /> <br />-k(13.S-~)~~v,. F~l <br /> <br />
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