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<br /> . . . . _ , � : �
<br /> : • DRAINAGE PLAN SUBt4ISSION FORM �- ' . ' �e=
<br /> (see Ordinance 514-78) �
<br /> NP.h'� OF APPLICANT Ceneurv Service Corooration � � �
<br /> fiDll12ESS OF APPLICANT 410 West Fifth Avenue �� ' � ' .
<br /> " ' Olvmaia, Sdashinaton 98501 • �
<br /> SUSMITTED BY Arvid Grant and Associates; Inc.�• ' �
<br /> PROPERTY I,OCATION 1020 South Broadwav �� � ' � ' - ��.
<br /> Between 7th and Mall, near Sea :First ' �
<br /> ZONZNG OF SITE: ' ' ' — ' � AREA OF, SITE= f1�R7 nC for d vPlo m n �'�=
<br /> ,. . , . . N/A • .
<br /> . . . � .: :.-
<br /> AREA' OF •CONTRSBUTING .CATCHMENT:� . . ..'. , .. . . _ . .`" :` ; ..
<br /> ,. .. . . . .
<br /> :. ..
<br /> PRF-DEVELOPMENT CONDITIONS �� �
<br /> -,: �� Runoff 'Coefficient' � - 'p�i s . , -
<br /> �F Timerof:.Concentration . • . • . - �
<br /> .. , ' 15 - _. , .
<br /> _ Rain£a21 Intensity :: . � T.5 . . , xn���
<br /> � ' Allowable. release rate. :. o:ls ' . . • cfs '" .
<br /> POST DEVELOPMENT CONDITION_ , .-, �
<br /> Runo££ Coefficient 0 72 • ' ' �
<br /> Design. Storm . 25 yr. . -
<br /> r r
<br /> � � -: . , ,:�r. � , '-:..,-0-,� : , _ :2 , ,- . - ;,� ; � ;: , :
<br /> DETENTION STORAGE REQIIIRED ,igg7 ' • c.fee�
<br /> . . . . •,
<br /> • ORIFICE: - . � , Qpos[-dev. , 25 1.:1� CFS .. , ' �
<br /> i .- � . . . ... :
<br /> :° ' �,-.,,, � DSI3METER ' -- �inches ;
<br /> : , . - �� � _
<br /> '+z,a" ,�'"'"�, ` �: i AEAD -- `feet' "
<br /> "`^'y i ti; _ _ %
<br /> �- . . . . � _ :.7
<br /> QUTI,ET:'PIPEc . - •. ' " -
<br /> x ' `� ' AIAMETER,�� �j �;•inches (Hel,_,GAP) ��
<br /> , t � s •, r ;
<br /> , SLOPE � ' '01,6 ;feet. per huridred _feet . • , �
<br /> • . � � .. �:. ,..�. .�, ..� � . -: � ...:'. :-�- � ,r: � ;L ,i
<br /> " ° `r -:% � ' j„ ::- ' , CAPACITX'r� '1 .3:3 - cubic' feet �per second'_ � !
<br /> r,� -�. . . .r � ': . . . . ' � - - � � .. _.�` `
<br /> RISER ,� . . �:��t/p `� �
<br /> � ,� � ` V�..
<br /> � �t � .,�r~ � ..DIIIMETER ,�. inches �g,:.... -
<br /> yc a �"
<br /> � .: . n� +: '.
<br /> . ' a
<br /> t ,
<br /> ` CAPACITY .-- � culiic 'feet -per se n �. c1 :�� :
<br /> See �attached: GA_ calc. Sheets (i=3) ; �,dated Ocgobez 28," 19E2. , � �'��
<br /> - ;�,, V; ' . _ � Yo � �L
<br /> 5' nature o applicant . l�c5'� S�C — ' date
<br /> :; . .: _ .
<br /> DEPARTFIENT'OF PUBLIC WORKS �APPROVAL •PLAN NO. •
<br /> ;,� _ �
<br /> O.I SITE DETENTION �EQU=REMENTS:. ' . c_feet
<br /> - ---- -- - . , ' ' . _ .. . . �i
<br />
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