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<br />STANDA. FORM SF-8
<br />TIME OF CONCENTRATION
<br />
<br />SUBDIVISION
<br />CACULATED BY
<br />
<br />---r =~~\
<br />,4/1:
<br />{jJK-"',.,.
<br />
<br />0'"
<br />
<br />E.12...1~
<br />DATE - 5-l.::'
<br />
<br />tc= iL+i,
<br />
<br /> SUB- BASIN INITIAL/OVERLAND TRAYl,r TIME fc CHECK FINAL REMARKS
<br /> DATA TIME (i.) (URBANIZED BASINS) fc
<br /> DES1G' Cs AREA LENGTH SLOPE ti LENGTH SLOPE VEL. f, '. fC =0.. /1*10
<br /> Ac Ft 0/0 Min Ft % FPS Mln Mln Min
<br /> (I) (2) (3) (4) (5) (6) (7) (8) (9) (10) (II) (12) (13)
<br /> 3\'2. o,q..s- 4.<,"1 ::co 0,0 ZI.'b ~ ~iS- 0, S" /0.0 &:'00 1-:, :,; I~ To ~If
<br /> ::, \ ~ c; 01 Il?o 1<0 z,o 1"1, I I gQ:) I. S- /.7 ILl 9'50 IS 3 I':) -n-:J 3, 1 '-
<br /> ~14- o As- 30<0 ISO 3.0 '7.'1 S2..5"" 1,0 I,~ 5:~ &7~ 132, /4- 7V 3/2..
<br /> 315" o.4s- I. 'ili /00 I J 0 1 1 -, s= :S.9-> "2..J.o 1Gb 10=1 /3. :::, 'e> 3",-
<br /> II. I f-.J "T'C'>
<br /> ';:;\(0 D~'5 "3 OS J rx--, 2.= '1::' 4= o'_S-~ o. s;- 13 'S SC::>0 /"Z,'f:::, I '0 To 310 I
<br />. . . . 7~ i 10 I 137S"" I L1~"""", I I I
<br /> '''In I 0 45" 2 /.,. I I Ja. I 2.~ 2.5" ? .'Z.. /"7 -, /, 1"'0 <II
<br /> -~ 1__, - .~ ~.~
<br /> ""1<0 0.4'5' 2. '1'6 )00 1.0 11.7 400 ~s 2.b Vt. ~= /2. 'D 13 7U 31;
<br /> .
<br /> ~:q 0,0; 3.2.'2> I~- 2') 14. s- 900 L;, I __ ioo /Ow iC:;,b !c." '0 3/7 . J
<br /> IVV f. ":>
<br /> :'70 o As:- 4.2k. 100 '2.0 c,."':, ~oo o.$" 0.5"' SQ,a /000 Ie; io I. To ~19
<br /> ",
<br /> ~Ll 0101 S'II." "00 ;, ~ ;A.. a '250 0.<;- 0." 'b. 7" Sse> I 'S. ( I~ -;--0 ~Q
<br /> 0."2'2,. oA'5 ~-Q.::) )c;D '2-,0 1\ 4- bow 0,0, c. -:s-- Zi,( '1'00 1<;;,-:, is; 10 2<.0
<br /> '3<.'3 Q,4s- '2.0?. c:;n o,~ /0.4;- St:o 0<; 0.":;- 1(.,.7 sC"~ 1"7.), I I~ To 30:..
<br /> ~- f':-
<br /> 3'Z.~ 0.4'5'" 4.0<.- '2co /. '5 /~,L- 550 O.S- 1.0 '1. '"2.. 7S2> 111. L... 14- --.i:> :. c.. 3
<br /> :'1.';- 0,4'5 "2..04- 1<:;"0 Z. ? 10.,,\ 2.00 Its 3,,0 I. 1 ~.,O )1. g /2- TO ~l.4
<br /> ~-z.v 0,01 0,"19 "5""0 '2.0 //0 c.7~ /,'S 7"!, S2S 'I ~ Ie
<br /> 2.0 1 . (:) ID S2.~-
<br /> BOULDER COUNTY STORM DRA!NAGE CR!TER!A M.-HUAL ~u~,.. ~",",.tCl.I"'''''''''''_ ,..'"
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<br />"'"\I C.,..UIA'r:.r:.",,,u, 'A\.o,
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