Loading...
HomeMy WebLinkAbout2000-04-21 Drainage ReportDRAINAGE REPORT PLOWE ENGINEERING, INC 9180 Lexington Avenue NE Circle Pines, MN 55014 (612) 785-1043 April 21,2000 APR 2 12000 '•••••-•• •-•••• • -- " • • • • • • • - • • - • • . • • • ..... • • •• • • • • • • • ••• •• ••• -•••••- " r- w. • • ' , t.U.1-. 6 bUN IN / MOWN.. imam G 1 4 -4-.)00.00 Ex/sr/Ala 441 ,1 PLOWE ENGINEERING, INC. 9180 LEXINGTON AVE. N.E. CIFICLE PINES, MN 55014 (612) 786400 FAX 786-6007 fr y 1 DING W.A.T.E. ENTERPRISES, INC. City of Oak Park Heights Washington County, Minnesota MWOUVONIAW 4110.4=1 Wm .255V241 685 PP • 1 b1 ''bb EDUUY H.U2720 DRAINAGE PLAN OP41664ke anti Way Itsaitabiker 4 F I ' API - APP-21-2000 12:20 E.U.P.UD (c', SUNS it& W.A.T.E. ENTERPRISES, INC. City of Oak Park Heights 4 CID 49 0 el° 0 0 Washington County, Minnesota k pos El> PLOWE ENGINGERING, - 9180 LEXINGTON An. N.E. CIRCLE PINES, MN S5014 (814785-1043 'FAX 18E4007 ZtraVie • W' 4 }NG D i AGE PI, 1 1 1 4411"Ima se mr SNr42" 48 OM 619 •bb bLIU7 H.U6/2U avie4R...1 agar rowi.sto I' • APR-21-2000 12:20 E.G.RUD a?, SUNS INC IL ING A IDI.1 AGE PLAN b12 'a5ED bULIT F.U4/2O ENTERPRISES, INC. City of Oak Park Heights Washington County, Minnesota APR- -21- -2 12:21 E . G . RUD a SONS INC 612 786 bUU7 P.05/20 Data for FO0433KE .''ENTER Page 8 TYPE 1124-HOUR RAINFALL. 6.00 IN Prepared by PLOWS ENGINEERING, INC. 20 Apr 00 H droCAD 5.11 001574 0 1986 - 1999 A +. lied Microcom•uter S stems RUNOFF BY SCS TR - 2 0 MMTHOD r TYPE II 24 RAINFALL= 6.00 IN, SCS U.H. RUNOFF SPAN = 10-20 HRS, dt= .05 HRS, 201 POINTS $UBCAI AREA To WGT 1 D PEAK Tpeak VOL DER ACRE MIN - - GROUND COVERS %CN - CN C CFS HRS AF 1 3.69 13.0 68k61 3 29$85 69 - 13.66 12.03 .76 2 5.24 20.0 42%'61 S8 %98 82 22.97 12_10 1,56 3 3.25 11.0 50% 17$98 33%85 75 _ 15.66 12000 .81 4 5.68 8.0 13%61 88 %$ 93 -- 43.06 11.9E 2.08 APR -- -21. 1 Data for PO O4 3 3 EEC. CENTER Page 9 TYPE II 24 -HQ 7R PA NFALL= 6.00 IN Prepared by PIOWE ENGINEERING, INC. 20 Apr 00 H dr©L"AD S ,11 .5' a 1986-1999 lied Microcc U.t S su $ SUBCATCHMENT 1 EXISTING WEST (PARTIALLY DEVELOPED) PEAK= 13.66 CFS @ 12.03 HRS, VOLUME= .76 AF Av 1 1 2.51 6 1 GRASS, GOOD CONDITON O r .11 98 PAVED AREA 1,07 85 WETLAND 3.69 Me hod DIRECT ENTRY 69 13 12 t 1 • 8 7 6 0 5 • 4 3 2 E . G . PUD a SONS INC 612 786 6007 P . Ub= ' U SUBCATCHMENT 1 RUNOFF EXISTING LEST (PARTIALLY DEUELOPED ) Comment To min EXIST. WEST MARTIALLY DEVELOPED 13.0 TIME (hour,) $ Cs TR - 2 0 METHOD TYPE II 24-HOUR RAINFALL= 6.00 IN SPAN= 10-20 HRS, d=05 HRS AREA: 3.69 AC Tc= 13 MIN CN= 69 SCS TR-20 METHOD TYPE 11 24 -HOUR RAINFALL= 5.00 IN PEAK 13.66 CFS e 12.03 HR5 )OLUME= .7G AF APR-- 21 -200Q 12:21 E r G . RUD 2. SONS I NC S Zf EN3' ile NQTTLPte=. 23.66 CFS 12.03 HOURS 612 7Eb bkU' / H.07/20 Data for P00433 1 .:ENTER Page 10 TYPE II 24 -HOUR RAINFALL= 6.00 IN Prepared by PLOWS ENGINEERING, INC. 20 Apr 00 EydragAD 5.11 001574 c 1 .. 9 A• -lied Microco •ut €r S ten HOUR 0.00 .05 ............... .10 .20 • 2 5 .30 . .35 .4 0 .45 10.00 .05 .06 .06 .07 .07 .08 .09 .09 .10 .11 10.50 .12 .13 .14 .15 .16 .17 .19 .20 .22 .2 11.00 .25 .27 .29 .31 .34 .37 .40 .44 .48 .53 11.50 .57 .63 .77 1.10 1.66 2.46 3.54 5.10 7.47 10.63 12.00 13.26 13.43 11.08 8.03 5.73 4.34 3.48 2.92 2.54 2.25 12.50 2.01 1.80 1.62 1.48 1.39 1.32 1.25 1.22 1.17 1.13 13.00 1.09 1.05 1.02 .98 .96 .93 .91 .89 .86 .84 13.50 .82 .80 .78 .76 .74 .73 .71 .70 .68 .67 14.00 .65 .64 .62 .61 .60 .59 .59 .58 w. 57 ■ 5 ` 14.50 .56 .56 .55 .55 .54 _54 .53 .53 .52 .52 15. 00 .51 .51 .50 .49 .49 .48 .48 .47 .47 _46 1.5.50 _46 .45 .45 .44 .43 .43 .42 .42 .41 .41 16.00 .40 .40 .39 .39 _38 _38 .38 .38 .37 .37 16.50 .37 .37 .37 .36 . 36 .36 .36 .36 _35 .35 17.00 .35 .35 .35 .34 .34 .34 _34 ■ ` 34 .33 .33 17.50 .33 .33 .33 .33 .32 .32 .32 ■ 32 .32 .31 18.00 .31 .31 .31 .31 .30 .30 .30 _30 .30 .29 18.50 . 29 .23 .29 ■ 29 .28 . 26 .28 .28 .28 .27 19.0 .27 .27 .27 .26 .26 .26 . 2 6 .26 .25 .25 19.50 . 2 5 .25 . 2 5 .24 . 2 4 . 2 4 .24 . 2 4 .23 . 2 3 20,00 .23 APR- -21 -2000 12:21 E . G . RUD 2, SONS INC Data for P0043310E. ZENTER TYPE II 24-HOUR RAINFALL= 6.00 IN Prepared by PLOWE INC. H d.oCAfl 5.11 001.3 I r4 c 19aS- SUBCATCHMENT 2 PEAK. 22.97 CFS @ 12.10 HRS, VOLE= 1.56 AF ACRES CIS 2.21 61 GRASS, GOOD CONDITION 3.03 96 ROOFS, PAVED AREAS 5.24 82 Method DIRECT ENTRY 22 20 18 F ., 16 fq 12 0 6 4 2 0 _ SUB CA TCHMEN T 2 RUNOFF EXISTING EAST (PARTIALLY DEUELDPED EXISTING EAST (PARTIALLY DEVELOPED) Comment EXISTING EAST ( PARTIALLY DEVELOP d Microco * cater S stems TIME (hours) S CS TR- 2 0 METHOD TYPE 1124-HOUR RAINFALL= 6.00 IN SPAN= 10-20 HRS, dt-x . 05 HRS AREA= 5.24 AC Tc= 20 MIN CN= 82 KS TR--20 METHOD TYPE 11 24-HOUR RAINFALL- 6.00 IN PEAK= 22.97 CFS 1 2. 1 HR5 UOLUME= L56 55 AF 612 786 63 P.08/20 Page 11 20 Apr 00 TC mix 20.0 APR --21- - 12:22 E . G .RUIN a SONS INC Page 12 b12 `r'bb bk307 N.� "U Data for PO 043 3IEk ,:ENTER TPL 11 24-HOUR RAINFALL= 6.00 IN Prepared by PLOWS ENGINEERING, INC. 20 Apr 00 ,HydroC' _ 11. 1 7 r 6 1 99 A Ii01d icrocoMP.11 S� SUBCATCHMENT 2 RUNOFF PEAK= 22.97 CF @ 12.10 HOURS HOUR 0.40 .05 .10 .1 .20 .25 .30 .35 .40 .45 10.00 .43 .44 .45 .47 .49 .51 .53 .55 .57 .59 10,50 .61 .64 .66 .69 .72 _75 .78 .82 .85 .89 11.00 .94 .98 1.02 1.07 1.13 1.19 1.27 1.35 1.44 1.54 11.50 1.64 1.75 22.96 2■27 2.92 3.98 5.49 7.55 10 ■37 14.11 12.00 18_33 21.76 22.96 21 .62 18.58 15.02 11.88 9.54 7.87 6.62 12.50 5.66 4.89 4.28 3.77 3.37 2_04 2..79 2.59 2.43 2.29 13.00 2.17 2.07 1.99 1.92 1.85 1.79 1.73 1.68 1 . 63 1.59 13.50 1.55 1.51 1.47 1.43 1.39 1.36 1.33 1.29 1.26 1.23 14.00 1.21 1.18 1.15 1.12 1.10 1.08 1.06 1.05 1.03 1.02 14_50 1_01 1.00 .99 .98 .97 .96 -95 .94 .93 .92 15.00 .91 .90 .89 .88 _87 .86 .85 .84 .83 .82 15.50 .81 .80 .79 .78 .77 .76 .75 .74 _73 72 16.00 _71 _70 .69 .69 .68 .67 .66 .66 .65 .65 16.50 .64 .64 .64 .63 .63 _63 .62 .62 .62 .61 17.00 .61 .61 .60 .60 .59 .59 .59 .58 _58 .58 17.50 .57 .57 .57 .56 .56 .56 .55 .55 ..55 .54 18.00 .54 .54 .53 .53 .52 .52 .52 .51 .51 .51 18.50 .50 .50 .50 .49 .49 .49 .48 .48 .48 .47 19.00 .47 .46 .46 .46 .45 .45 .45 .44 .44 .44 19.50 .43 .43 .43 .42 .42 .41 .41 .41 .40 .40 20.00 .40 APR-21-2000 12:22 E. d U . HUL UrNS INL Data for P00433KE MITER R TYPE II 24-HOUR RAINFALL= 5.00 IN Prepared by PLOWE ENGINEERING, INC. H 1 1574 1 861 9 A lied micro= uter SUBCATCHKENT 3 PROPOSED WEST (t E BLOPMENT COMPLETE) PEAK= 15.66 Ch's @ 12.00 HRS, VOLUME= .81 AF ACRES CN 1.64 61 GRASS , GOOD CONDITION .54 98 ROOFS, PAVED AREA$ 1.07 8 5 WETLAND 3.25 75 Method Comment DIRECT ENTRY 15 14 13 12 11 i 10 6 CD 6 5 U- 4 3 2 g cm SUSCATCHMENT 3 RUNOFF PROPOSED WEST (DEVELOPMENT COMPLETE) PROPOSED WEST (DEVELOPMENT COMPL TIME ( kour ) SCS TR -20 METHOD TYPE 1I 24 -HOUR RAINFALL= 6.00 IN SPAN= 10 -20 HRS, dt =_05 HRS AREA= 3.25 AC T 11 MIN CN:. 75 5C5 TR -20 METHOD TYPE II 24 -HOUR RAINFALL= 5.00 IN PEAK= 15.66 CFS e 12 HRS VOLUME= .81 AF bid r bb bU 7( V. 1 U ZU Page 13 20 Apr 00 Tc min 11.0 Rf-'H--21 --2U jU 12:22 E . U . kUL SUNS INC b 1 2 Ybb bUU1 F.11/20 Data for P 0 0 4 3 3 XRk ZENTER TYPE II 24-HOUR RAINFALL 6,00 IN Prepared by PLOWE ENGINEERING, INC. 20 Apr 00 HdrocAD 5.1.1 001574 c 1 99 A.ied Micrrpoom cater Systems rrrr,r�.Js SUBCATCHMENT 3 RtN'OrF PEAK= 15.66 CFS @ 12.00 HOURS Page 14 HOUR 0.00 .05 .10 .15 20 _25 .30 .35 .40 .45 10.00 .15 .15 .16 .17 .18 .19 .20 .21 .22 .23 10.50 _24 .25 .26 .28 .29 .31 _33 .35 .37 .39 11.00 .41. .43 .45 .49 .52 .57 _61 .66 .71 .76 11.50 .82 .90 1.15 1.68 2.53 3.63 5.02 7.04 10.05 13.68 12.00 15.66 13.96 10.03 6.66 4.69 3.61 2.98 2.57 2.28 2.04 12.50 1.84 1.66 1.51 1.40 1.33 1.27 1.22 1.18 1.14 1.10 13.00 1.06 1.02 .99 .96 .93 .91 .99 .86 _84 _82 13.50 .80 .78 .76 .74 .72 .71 .69 .68 .66 .65 14.00 .63 .62 .60 .59 .58 .58 .5 ■ .57 .56 .56 14.50 .55 .54 .54 .53 .53 .52 .52 .51 .51 .50 15.00 .50 .49 .49 .48 .48 .47 .47 .46 .45 .45 15.50 .44 .44 .43 .43 .42 .42 .41 .41 .40 .39 16 ..00 039 .38 .38 .37 .37 .37 .37 .37 .36 .36 16.50 .36 .36 .36 .35 .35 _35 _35 .35 .34 .34 17.00 .34 .34 .34 .33 .33 _33 .33 .33 .32 .32 17.50 _32 .32 .32 .31 .31 .31 .31 .31 .30 _ 3 0 18.00 .30 .30 .30 .30 _29 .29 .29 .29 .29 .28 18.50 .28 .28 .28 .28 .27 .27 .27 .27 .27 .26 19.00 .26 .26 .26 .26 .25 .2 5 .25 _25 .25 .24 19.50 .24 .24 .24 .24 .23 .23 .23 .23 .23 .22 20.00 .22 APR - 21- 12.22 E . G . RUD SUNS iNC Data for P00433K 4: TER TYPE II 24 -HOUR RAINFALLiz 6.00 IN Prepared by PLOWS ENGINEERING, INC H droCAD . 11 .0 574 c 1986 -1999 A• +lied Micracom SUTBCATCENT 4 PEAK= 43.06 CFS @ 11 , 9 6 HRS . VOLUMEz 2.08 AF ACRES CN .71 61 GRASS, GOOD CONDITION 4.97 98 ROOFS , PAVED AREAS 5.68 93 Method DIRECT ENTRY SUBCATCHMENT 4 RUNOFF PROPOSED EAST C DLUEL OPMENT COMPLETE) Comm ~ n user 5 stems PROPOSED EAST (DIVELOPMENT COMPLETE) PROPOSED EAST (DEV1 LOPMENT COMPL 8.0 40 35 38 2 5 20 15 1e TIME (hours) S CS TR -- 2 0 METHOD TYPE 1124-HOUR RAINFALL= 6,00 IN SPAN= 10 -20 HRS, dtm . 05 HRS AREA= 5.68 AC Tc= 6 MIN CN=. 93 SCS TR -20 METHOD TYPE II 24 -HOUR RAINFALL= 6.80 IN PEAK= 43.06 CFS 8 11.96 HR5 VOLUME= 2.06 AF b12 (ib bUU ( Page 15 20 Apr 00 WF --.1 ~-- .ODU E . L . NUU SUN 'NU Data for POO433K JEER TYPE 11 24-HOUR RAINFALL= 6.00 IN Prepared by PLOWE ENGINEERING, INC H droCAD 5.11 001574 c 1986 -1 lied Microco •uter .5 �t SUBCATCHMENT 4 RUNOFF PEAK= 43.06 CFS @ 11.96 HOUR HOUR 0,00 ,OS .10 .15 .20 _25 .30 .35 .40 .45 10.00 1,05 1.09 1.11 1.14 1.18 1.21 1.25 1.29 1.33 1 .3 7 10.50 1.41 1.45 1.50 1.55 1.61 1.67 1.74 1.80 1.87 1.93 11.00 2.00 2.07 2.17 2.30 2.44 2.59 2.74 2.90 3.05 3.21 11.50 3.38 3.82 5.37 8.11 11.49 15.19 19.61 26.30 35.34 42.83 12.00 39.74 26.74 15.35 9.78 7.32 6.10 5.38 4.85 4.44 4.06 12.50 3.68 3.32 3.05 2.8$ 2.77 2.67 2.57 2.49 2,40 2.31 13.00 2.22 2.14 2.07 2.01 1.96 1.91 1.86 1.82 1.77 1,72 13.50 1.68 1.63 1.59 1.55 1.52 1.48 1.45 1.41 1.38 1.35 14.00 1.31 1.28 1.26 1.24 1.23 1.21 1.20 1.19 1.18 1.17 14.50 1.15 1.14 1.13 1.12 1.11 1.09 1.08 1.07 1.06 1.05 15.00 1+ . 0 0 �� 1.04 1.02 1.01 1.00 .99 .98 . 9 7 .95 . 9 4 .93 15.50 .92 .91 .89 .88 .87 .86 .85 .84 .02 .81 16.0 .80 .79 .78 77 .77 ■ ' 75 .76 6 . ■ 6 _7 _75 16.50 .74 .74 . 74 .73 . 73 .72 2 .72 .71 ■ 71 .71 } 17.00 .70 . ° J 0 .69 , 69 .68 .68 .68 .67 .67 .66 17. 50 .66 .66 .65 .65 .64 .64 .63 .63 .63 .62 18.00 _62 _61 .61 .60 .60 .60 .59 _59 .58 .58 18,50 .58 .57 .5 ■ ■ 5 .56 .55 _55 .55 ■ 54 .54 19.000 .53 .53 .52 .52 .52 .51 .51 .50 .50 .50 19.50 .49 .49 _48 .48 .47 .47 .47 .46 .46 _45 20.00 .45 61 7E3b bbUU7 P.13/20 Page 16 20 Apr 00 Hh'H- 1- UU U 12:2,5 E . b . NUD 5U ` S 1 NC Data for P004331031 tFNTER TYPE II 24-HOUR RAINFALL= 4.10 IN Prepared by PLOWE ENGINEERING, INC. • • 'AD .11 001574 c 1 ` R6 - 1 ... • WATERSHED ROUTING 0 SUBCATCHMENT REACH crcccm *uter S stems PONO a LIB SUBCATCHMBNT 1 EXISTING WEST ( PARTIALLY DEVELOPED) SUBCATCHMENT 2 = EXISTING EAST (PARTIALLY DEVELOPED) SUBCAT 3 PROPOSED WEST (DEVELOPMENT COMPLETE) SUBCATCHMENT 4 = PROPOSED EAST (DEVELOPMENT COMPLETE) SUBCATCHMENT 5 = PROPOSED TO NEW CATCH BASIN b1 `(' 3b EDUUY P.14/20 Page 17 20 Apr 00 -> -> PPR-- 21 -2U00 12 :25 Data for P00433KEF DER TYPE 11 24-HOUR RAINFALL= 4.10 IN Prepared by PLOWE ENGINEERING, INC. 3ydroC 7 5.11 00157 986 -1999 A• •lied Microco SUBCATCHMENT 5 Me od DIRECT ENTRY PEAK= 4.32 CFS at 11.94 HRS, VOLUME= . 19 AF ACRES CN .86 90 COMBINED SURFACES 4.0 3.5 3.0 2.5 0 i.5 2.0 1.1 .5 E . U . RUD SONS INC PROPOSED TO NEW CATCH BASIN Comment /0 y r PROPOSED TO CATCH BASIN SUSCATCHMENT 5 RUNOFF PROPOSED TO NEW CATCH BASIN TIME (hours) uter 5 st - ms S CS TR - 2 0 METHOD TYPE 11 24-HOUR RAINFALL= 4.10 IN SPAN: 10-20 HRS, dt = 4 0 5 HRS PRFA17 .66 AC Tc= 6 MIN CNIt 10 5GS TR-20 METHOD TYPE II 24- -HOUR RAINFALL= 4.10 IN PEAK= 4.32 CFS c lf.94 HR5 VOLUME= . 1 9 AF 612 78b (DWI H.15/21:1 Page 27 20 Apr 00 6.0 APR- -21 --2000 12:3 E . L .RULE 2, SONS INC 512 78b 6007 f), 1 E . ` JU Data for P00433KER ENTER Page 28 TYPE II 24 - HOUR RAINFALL= 4.10 IN Prepared by PLOWE ENGINEERING, INC. 20 Apr 00 1 • °CAD 5.11 001.574 c 86 999 A- •lied Microcam.uter S stems SMICATCTEMRNT.3 Rte- m- p?BAK=� 4.32 CFS 11.94 HOURS DOUR 0.00 . OS .10 .15 .20 .25 .30 _3S _40 =45 10. 00 .07 .08 .08 .08 .08 _09 .99 .09 .10 .10 10.50 .10 .11 .11 .12 .12 .13 .13 .14 _14 _15 11.00 .16 .16 .17 .19 .20 .21 .22 _24 .25 .27 11.50 .28 .35 155 .83 1.16 1.52 2.00 2.80 3.79 4.30 12.00 p 3.31 1.77 .96 .68 .56 .52 .48 .44 .41 .37 1.2.50 .33 .30 .28 .27 .26 .25 .25 .24 _23 _22 13.00 .21 .20 .20 .19 .19 .18 .18 _10 .17 .17 13.50 .16 .16 .15 .15 .15 ,14 .14 .14 .13 .13 14.00 .13 .12 .12 .12 .12 .12 .12 .12 .12 .11 14.50 .11 .11 _11 .11 .11 ,11 .11 .10 .10 .10 15.00 .10 _10 _10 .10 .10 .10 .09 .09 .09 .09 15.50 .09 .09 .09 .09 .09 .08 .08 .08 .08 .08 16.00 .08 .08 .08 .08 .08 .08 _07 _07 .07 .07 16.5 0 _07 .07 .07 .07 .07 _07 _07 _07 .07 .07 17.00 .07 _07 _07 .07 .07 .07 .07 .07 .07 .07 17.50 .07 .06 .06 .06 .06 .06 .06 .06 .06 .06 18.00 .06 .06 .06 .06 .06 _06 _06 .06 .06 .06 1.8.50 .06 .06 .06 ,06 .06 .05 .05 .05 .05 .05 19.00 .0S .0S .05 .05 .05 .05 .05 .05 .05 .05 19.50 .05 .05 .05 .05 .05 .05 .05 .05 .. ❑4 20.00 . 0 4 fPR -21 — aJUU 1 : E . U . HU1) SUNS I F& 9 -76 (rile Code ter -T3) 4a a raved Computed by Curve Numbers Moisture Condition II A C Soils Soils Soils soils LAND USE DESCRIPTION Cultivated Lend: without conservation treatment ;with conservation tree.tment ?a9 t.urt or range l and : poor condition good condition Meadow: good conditton Pre sent ' r Future Wood or rereet land: ehln etend, poor cover, no mulch good cover FIGURE >-2 Date 3pv: Spacea, lawns, parka, golf courses eme— yea A es , e. good condition: graea cover on 75% or more of the area fair condition: graaa cover on 50% to 75% of the area Co moro c acid tueiness areas (85% impervious) :5a1 dl stri ets (72% impervious) Resz.denta al: i Ysrsh eve . 1 a 3.ot size Awe rags Impervious 1/8 are or less I/ acre II) acre , 1 acre acre .: tree is aid ;*gads 65 38 25 20 ? parking lots, roofs, driveways, etc. ;saved with curbs and storm sewers gravel azrt HYDROIAGIG CURVE NUMBER CdMPUTATION SHEET E LAND USE FOES URBAN AREAS Site Total Acre 9 5.1)-4 lflghted ' Runoff Curve Na , Product Total Total Acres 3--4 00Checked by 84 C jH 2O/41H%( b1e (ou bUVf r 1( -A3 90 92 83 87 81 86 80 85 P 79 84 95 89 87 86 89 74 80 71 78 77 70 Pco433 V. . OlF .*1Mt$T 01 ACSJCuLru %t Wit Cam+ itLtaa? S€Iv t 98 Cf 9 ec) 91 8 77 80 95 Date ACre9 rod ct 3 4. a 98 Product Total 431 . APR-21-2000 12:24 E . G . PUD SOS INC : 11400e or Poreat land: th2f stand, poor cover, no mulch 1 good cover t �gen Spices, lama. packs, golf coursoa.. coma- . :e °ass, edc. good condition; grass cover on 7 or mare or the area fair condition: grass cover on 5C to 75% of the area ..streets arxd -olds: MN--- EN --73 9-76 (File Code F.NG- 1 3) Wa :ersned Computed by 6 _ _ Date ► . D CrOChecked by Cul:ivated Land: without conservation treatment with conservation treatment Paatwre or range land: poor condition good condition McActow: good condition c flmmer c: si and business areas (85% impervious) districts (72% impervious) e$z.de:1t:43, . :�vera,,e lac si �e Average Impervious 1'8 acre or less ' 114 acre `'3 acre 1'2 acre afire 65 3 2 5 20 ='avtic ;ark.1'15 lots, raofa, driveways, etc. paves wI t,n curbs acid Sturm aewer'a gravel dirt Marsh .]tnt: FIGS --2 LAND Aeree ND U5 DESCRIPTION Tctal Acres Site Weighted Runoff Curve No. Produce Total Total Acres ftDR0LGGIC CURE ?AMER COMPUTATION SKEET �... LAND USE FOR URBAN &SEA S .. ............... ............................... or Fture f 3- 4 3.b9 77 61 57 51 Curv. Nwnb.ra tooleture Cord tf.n I D soi) a Praduc t 612 786 6037 P.18/20 PO433 7'c: 3 M111/41 u. 3w Dttmfoo(Mt Q` A IKIJIM &t 1C41.. C O H .Vwn4 gineCt 4 9 Acres 91 81 Date Product Total ;-5.44._ °'a a rshed • ,MN- EIG 7 3 (rile Code 1)) good condition '8 acre or Yes$ 1/4 acre 3 acre 1 '2 acre acre E . G . PUD & SONS INC ,:cptIputed by C ? Date Al LAND USE DESCRIPTION Cu: ;.7 va ted Land, wvthout conservation treatment with conservation tre an ent I L-- r avture or range land: poor condition good condition Meadow: 1 ; or Forezt land, chin stand, poor cover, no mulct) good cover 1 :pen Spaces, lawn, , parks, golf courses, ceme— t etc , good condltaon: Braes cover on 75% or more of the area condo tzon: grass cover on 5 to 75% of the area 8+ Commere l a.l and business areas 5% impervious) 89 92 Q1 95 cu stri cts (72% impervious) =ec :den ;al: vera dot size Average % Im rvious 65 38 30 25 20 Pavel parKa fg lots. roofs, driveways, etc. .; ° re. is and . o Ads : ;paved with curb xne Storm sewer ,;ravel alrt FIGS: 3-2 HYDROLOGIC CURVE NUMBER COMPUTATION SHUT Sites LAND USE FOR unAN AREAS Checked txy Total Acres Wepghted Runoff Curve No. Product Total _ C. Total Area T 612 796 600? P.19/20 PoL) Curve Numbers Acres Per A B C D PraCtice Soils So119 Soils Soile T i Moisture Condition II 72 83 88 91 62 71 78 81 68 7q 86 89 ,c) 6i 711 8o 77 85 90 92 6i 75 83 87 57 72 81 8 5h 70 8o 85 5 68 79 84 58 71 78 66 • ?7 63 - 55 lU 77 98 98 98 98 89 87 U. L a(rA&TM 1M 1 .7f AGAICULTUtt SOIL CCP SZAVICI 91 89 8o 9 8 Daze PrOduCt, 4-3.3/ Product Total 5 3tx, HFH. 1 2UkU 12=24 •. � a z e raPied • r— MN-G-73 9$75 (File Code E G 3) : ° •tpute(1 by L�- }ate 4 // hecned t)Y _ Date rtionumanimi Cu.. i vate i Lane: without conservation treatment with - conservation treatment ?a :fture or range land: poor Condition goad condition Meadow: good condition Comma :-c a1 and oust Hess E . U . NUD t: SUNS INC LAND USE DESCRIPTION food or Arrest land: 'Gin stand. poor cover. no mulch . good cover !::per: Spaces, lawn n, parka, golf courses, cams— ,! aeries, etc. 1 good condiI.ion_ grads cOver on 75% or more I of the area fair condition: graea cover on 50% to 75 of the area &real (85% impervious) :f7o districts (7 iMperviOUS) ?awed parting lots, jtre.2ts and roads: • HYDROLOGIC CURVE NUMBER COMPUTATION SHEIET isa 5 r LAND USE FOR YR8AN AREAS P're'sent or ':� .�Vergo�C Size Avers g L erYiou9 3'8 acre or less 65 1/L acre '3 acne 1 '2 acre acre 38 30 20 drivewaYs, etc. panned wi to curds and storm sewers gravel dart FIGURE 3-2 Site 3-4 Acres Per Practice A Soils ?2 62 68 612 786 600? Po a 4 3 Curve Numbers MCfi sture condition Ia D Soils 91 81 8c 8o 78 Welgnted Runoff Curve No. Product Total Ai Total Acres P.20/20 u. 1 I• ° +14T Mpi/ at AG SOCA) Li* t Ott C0 SW AMIN itkV 1L, 8 3 77 Acres 84 Prd ctJ Total Acres 3 , Product Total 4 O TOTAL P.20