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4120 FEDERAL AVE 2018-01-02 MF Import
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4120 FEDERAL AVE 2018-01-02 MF Import
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Last modified
2/4/2022 3:26:13 PM
Creation date
2/10/2017 4:30:37 PM
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Address Document
Street Name
FEDERAL AVE
Street Number
4120
Imported From Microfiche
Yes
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DRAINAGE CALCULATIONS <br />(City of Everett) <br />14-Mar-89 <br />FOREST PARK SDA SC400L <br />LSAM 2019 <br />Existing runoff rate = <br />0.277 <br />cfs/acre <br />G14t <br />Post -development design <br />storm: <br />25 <br />year recurrence <br />Type of cover: <br />area, <br />detention <br />required <br />(future) <br />------------------------------------------------------- <br />acres: <br />/acre: <br />detention: <br />lawn/landscaping <br />1.000 <br />x <br />363 <br />---------------- <br />= 3b2"cf. `.'OA- <br />earth/gravel <br />0.000 <br />x <br />0 <br />= 0 cf <br />impervious <br />0.294 <br />x <br />2507 <br />= 7J/'•�fc,;ai> <br />----------- <br />1.294 <br />acres <br />----- <br />176,1''ef' sL' <br />Data from City of <br />Everett <br />DETENTION STOW E REQUIRED <br />Table 6 <br />and Table 7 <br />� zzzez=z=e=zzzzz=.z===z===z=zz===e=zzez=z===ce==eez===cezzzzzz====zzzzzzzzzzzzzazzzzzzzze <br />10 <br />year design storm <br />:25 year design storm <br />Peak rate lawn/ <br />earth/ <br />;lawn/ earth/ <br />cfs/acre ; landscape <br />gravel <br />impervious <br />;landscapgravel impervious <br />-----------------+- -----------------------------------*------------ <br />0.005 I <br />1104 <br />4544 <br />6837 <br />; 1802 5843 <br />Biel <br />NA ; <br />NA <br />NA <br />NA <br />NA NA <br />NA <br />0.010 <br />1060 <br />4323 <br />6576 <br />; 1744 5631 <br />7926 <br />NA <br />NA <br />NA <br />NA <br />; NA NA <br />NA <br />i 0.030 ; <br />910 <br />3598 <br />5508 <br />I 1541 4794 <br />6842 <br />NA I <br />NA <br />NA <br />NA <br />NA NA <br />NA <br />0.050 ; <br />742 <br />3149 <br />5189 <br />; 1370 4229 <br />5886 <br />NA ; <br />NA <br />NA <br />NA <br />; NA NA <br />NA <br />0.070 ; <br />615 <br />2808 <br />4256 <br />1227 3811 <br />5248 <br />NA ; <br />NA <br />NA <br />NA <br />NA NA <br />NA <br />0.100 <br />48B <br />2439 <br />3520 <br />1033 3386 <br />4505 <br />NA <br />NA <br />NA <br />NA <br />; NA NA <br />NA <br />0.200 ; <br />100 <br />1548 <br />2225 <br />590 2274 <br />3018 <br />0.277 <br />66 <br />1124 <br />1811 <br />363 1787 <br />2507 <br />0.400 ; <br />0 <br />447 <br />1151 <br />; 0 1010 <br />1693 <br />i NA ; <br />NA <br />NA <br />NA <br />NA NA <br />NA <br />0.700 ; <br />0 <br />0 <br />97 <br />I 0 NA <br />607 <br />NA <br />NA <br />NA <br />NA <br />NA NA <br />NA <br />1.000 <br />0 <br />0 <br />0 <br />; 0 NA <br />70 <br />---- <br />i <br />`-4 <br />
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