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HomeMy WebLinkAboutBP940312 BOEING AIRPLANE COMPANY FACILITIES DEPARTMENT RENTON PLANT UPGRADE OUTFALL DRAINAGE BASIN No. 27 N. WA STRUCTURAL CALCULATIONS e � z r CIVIL/STORM CALCULATIONS Q 1975 tiV ww LISTER Gti� SSIONALS �c�tiOE wAs�ti kq� EXPIRES 8/17/9� 41 h z _ ,q � 19019 SfONAL EXPiREa Z q ti- Prepared by For PERMIT/ENGINEERING, INC &wk, ENGINEERS, INC 16928 Woodinville-Redmond Rd 16928 Woodinville-Redmond Road Suite B209 Suite B201 Woodinville, WA 9 FE cmoFaertc; Woodinville, WA 98072 Tel. (206) 483-535, D E 1 V E Tel. (206) 488-4382 D 114AY 1 8 `r SUIT DING DIVISION etu- 4 Project By Date ENGINEERS, Subject Project No. INC. Page No. of _ L���1��" U7�/�G L �/Pi91ti�� /.�i�}S/IV f.��ZJ•?�' -/ 13'e-4 •2 e -.3 2 s Y!z z.�f //.' Ile C - d ZS y,c•. /a o y " t� 'si;-✓ f�����T�c Ali, (7Z's GvTF•��G /9 C. -/Z C?/vv G�ii'r•4LG. �� C -/f ��4��✓�TS.c' CGc"uC,•�T/asv a"�/M`'�T C-/S t Cowl T MZ/T PA('F- S TI'LJC7L'eA c-C,.4 LC U C.bTI oA4 S eome4 Project By Date ENGINEERS, Subject Project No. INC. Page No. of Trki Tti, A-c.- �'/ �u L 4 77 orvs PA Alv, a)C'e/PT10 5- i SEC-n Ong A S -Z S-CT/ON 3 5 - 3 SzGT1 vN C 5 - 4 5'ZC T/Ott? h S -S S67C not-4 S -G srCTtot-,j rr C rE 00V 7-1L)tU S - S�C71Oty S rc TI av rrl CTto nl r Project /FO F_/s�/cS By Date Subject Project No. A5 dy ENGINEERS, INC. Page No. of 0,04LeG/G,-� 710 AIZ 7-0 /o�,Ei vrj C /�„ Project ���/ By _1�if// Date `�►�j Subject /��/��,- -2/ Project No. /}d ENGINEERS, INC. Page No. - of 02, BoEi�v�� �iP,�/w F min s/buii�j� S� S,�cT/off r ry / /�C� ��'+`;° �.f's=•� Cc?ii i�,�.G'-,,'era !.�//T// �j�r` /�G`O/� ¢v v ��'T. �! -��� .�:•�' off' /�� Od a S .�=• �/"'v., r:'i'�.'" i''.t` �'�r j r'iU,.l��/j°r,� �;�ti/.1 G,s✓.'rr�•C�s. ��/9.�` •,�'S-�::fG",'f� G� r��/_.mot r.G r v S .�,c`�;.iC• ,.'�.�/Ei✓T 0/oo ro C":-& / i 'exile n/.vy GUAI-s /1/f /�/}•?lJ� ..SL ,fir✓�'T�� F���'�f'� GUI Ta j"rl� s�v�� />i�'Airy f NL.E/' T to i'iy� �/f�'• �Tc�.�'P!� G',�'f'Yi:l OrC�/''�'l�fL c - z ° BASIN ID RB25 SBUH HYDROGRAPH °DESCRIPTION ROOF BASIN 25 YEAR Peak Factor: 484 .00 *AREA (acres) 4 .300 RAINFALL CHOICES °RAIN PRECIP (in) 3 .30 1. TYPE IA °TIME INTERVAL(min) : 10.00 2 . TYPE I °TIME OF CONC (min) : 10.00 3. TYPE II °RAINFALL SELECTION: 6 4 . TYPE IIA °ABSTRACT COEFF 0.20 5 . TYPE 3 *BASE FLOW (cfs) 0.000 6 . USER 1 'STORM DUR (hrs) 24 . 000 7 . KC 7 DAY ° 8. CUSTOM °PERVIOUS PARCEL IMPERVIOUS PARCEL °AREA: 0 .000 acres AREA: 4 .300 acres °CN 87 . 00 CN 98.00 ° ° SUMMARY DATA °PEAK HYDROGRAPH TIME: 8 . 00 hrs °PEAK HYDROGRAPH FLOW: 3 .3093 cfs °TOTAL HYDROGRAPH VOL: �1 . 0991 ac-ft ° BASIN ID RB100 SBUH HYDROGRAPH °DESCRIPTION ROOF BASIN 100 YEAR Peak Factor: 484 . 00 °AREA (acres) 4 . 300- RAINFALL CHOICES °RAIN PRECIP (in) 3. 90 1. TYPE IA °TIME INTERVAL(min) : 10 .00 2 . TYPE I °TIME OF CONC (min) : 10. 00 3. TYPE II °RAINFALL SELECTION: 6 4 . TYPE IIA °ABSTRACT COEFF 0 . 20 5. TYPE 3 °BASE FLOW (cfs) 0. 000 6 . USER 1 °STORM DUR (hrs) 24 .000 7 . KC 7 DAY ° 8 . CUSTOM °PERVIOUS PARCEL IMPERVIOUS PARCEL °AREA: 0. 000 acres AREA: 4 .300 acres °CN 87 .00 CN 98.00 ° ° SUMMARY DATA °PEAK HYDROGRAPH TIME: 8.00 hrs ` °PEAK HYDROGRAPH FLOW: 3.9316 cfs °TOTAL HYDROGRAPH VOL: 1.3134 ac-ft c - 3 KING COUNTY, W ASHINGTON, SURFACE WATER DESIGN MANUAL FIGURE 3.5.1F 25-YEAR 24-HOUR ISOPLUVIALS 17 29 , 4.5 3 O / y i Kirkidna H on s� .. ��_......�� •Mcon.. I•Mll — •� 'i Mercer•.\ CP i `� — -- •' �\,�. f anion i }1y � _._ •;-- _ ?, �---+•" ;lam rd ��. •- Des ones r 1 G I Y h4 tom_ 'Ilk `�" 25-YEAR 24-HOUR PRECIPITATION �� - E --3.4^- ISOPLUVIALS OF 25-YEAR 24-HOUR TOTAL PRECIPITATION IN INCHES njIro lb- � L I 4S 0 1 2 3 4 S 6 7 8 Mlles 3.5.1-1 l I/9 nJ'�� �O - tt1 1:300.00n 0 G - KING COUNTY, WASHINGTON, S URFACE WATER DESIGN MANUAL FIGURE3.5.1H 100-YEAR 24-HOUR ISOPLUVIALS 3 p----- - - tom, =r - ------- - - ----- l - - - - -- 31 Alm 33, 4 4A �� F, El EF °_.'��/� —'"ELLEVjIE-r:. F, I ' e �• zo 4 oi = Des BrosKed .—.—.—. ` 1 1 100-YEAR 24-HOUR PRECIPITATION i 3.4 ISOPLUVIALS OF 100-YEAR 24-HOUR TOTAL PRECIPITATION IN INCHES = 0 1 2 3 4 5-6 7 8 Miles ?.1� 3.5.1-13 �` O, \1{ -%� `'•^ Y 1: 300.000 �' (�".f'� 1Inn Project By /fiJ/O Date Subject Project No. ENGINEERS, INC, Page No. C = of 7771,e: �v�t✓ /? '�STEM /�/�E /,+/1�a Tf/ r>�. �J/.J� ky/L L 7-0 fr 7^ �✓�r ✓,'` .�O lr ,�"lGr9'L SGv,o� �,�� it r.�i�✓ii� pJ �J�� ry L�Q�'/w'f��=v✓� �'1/it�rk,.) l.-f ti �'�F�::re..� 7'=,C/_!�. -r l Z yC/i,f-45 t.i o r-J c.b A4,ly✓11 L,c TNT /ev L7 c Ou rsi v r TiY z= f.��// a/ r r, z ,S/�s-� /Z 4'/C-G 1.5 .t? �a�r�r;;vrn , -tip%• !sE 7%� Ca�/VEy Tfi orv,4 77 o off' /S.o3 rzx T STORMWATER MANAGEMENT MANUAL FOR THE PUGET SOUND BASIN Figure III-2.1 - Nomograph for Sizing Circular Drains Flowing Full 1000 900 _- 800 .0001- 700 -+ 2.0 600 .0002 y 500 0003-9 Minimum �-400 0004 1 0001 Allowable -r Velocity r� .0006--{ (Flowing(Ffl � �- --� 3.0 300 120 c •0008�• .0002 Full) F- 108 0 .001 --.0003 200 96 0 =.0004 .002+-.0005 4.0 E B` .0006 78 00 .003---=72 0008 w — / 66 •004 .001 c .005 0 100 60 p 006 � 90 54 N 008_3 002 0 48 .01 / w 6.0 70 w -42 r c cn fi0 U 02 � 0 w 7.0 w 50 Z 36 006 U Z 33 /w H z - .008 CL w —8.0 - �-4 0 w 2 7 / .04 10 O U- (D p 27 .05 _ � = �30 LL 24 �- 21 / OB .020 10.0 10- V) w 030 U Q -20 18 w / 040 OJ w Q 15 060 �--- [ C1 =.080 f 12 C-.100 10 r10 9 8 SAMPLE USE 7 1i �G�jG1P 8 24" dia. CMP @ 2% slope yields �20.0 6 �, ` 17cfs @ 5.2 FPS velocity 5 / (yiV (n = 0.024) 6 q 4 Values per Manning's Equation Q = ( 1.49� AR'hs%z 3 n ° 30.0 4- This table can be converted to other"n"values by applying 2 formula: - 4 Q.0 01 n1 02 n2 C. 1 III-2-8 FEBRUARY, 1992 Project /-"-�t2 By ell/P Date Subject auTF,4LL Project No. ENGINEERS, INC, Page No. /- / _ of ovrF��� /t/v• �.� 7-0 - rO/` Z 1- /'c" 'l'_ UX O u /V C S 77/ d!��F,° ✓�C /!/i l/,� r-' ;! l J �^���r U f i a�sz7 Ld/;��r<f 45�6 Vi4T/o VY 147S' 77f� 77t)F— S�!� /� AT Ec. /Z; ° BASIN ID DB27 SBUH HYDROGRAPH °DESCRIPTION DEVELOPED BASIN 25 YEAR Peak Factor: 484 .00 °AREA (acres) 40.000 RAINFALL CHOICES °RAIN PRECIP (in) 3.30 1. TYPE IA °TIME INTERVAL(min) : 10.00 2. TYPE I °TIME OF CONC (min) : 21.00 3. TYPE II °RAINFALL SELECTION: 6 4 . TYPE IIA °ABSTRACT COEFF 0.20 5 . TYPE 3 °BASE FLOW (cfs) 0.000 6. USER 1 °STORM DUR (hrs) 24.000 7 . KC 7 DAY ° 8 . CUSTOM °PERVIOUS PARCEL IMPERVIOUS PARCEL °AREA: 0 . 000 acres AREA: 40 . 000 acres °CN 84 . 00 CN 98 .00 ° ° SUMMARY DATA °PEAK HYDROGRAPH TIME: 8 . 00 hrs °PEAK HYDROGRAPH FLOW: 26 .0371 cfs °TOTAL HYDROGRAPH VOL: 10 .2237 ac-ft ° BASIN ID DB27X SBUH HYDROGRAPH °DESCRIPTION DEVELOPED BASIN 100 YEAR Peak Factor: 484 . 00 °AREA (acres) 40 .000 RAINFALL .CHOICES °RAIN PRECIP (in) 3 .90 1. TYPE IA °TIME INTERVAL(min) : 10.00 2 . TYPE I °TIME OF CONC (min) : 19 .00 3. TYPE II °RAINFALL SELECTION: 6 4 . TYPE IIA °ABSTRACT COEFF 0.20 5. TYPE 3 °BASE FLOW (cfs) 0.000 6 . USER 1 °STORM DUR (hrs) 24 .000 7 . KC 7 DAY ° 8 . CUSTOM °PERVIOUS PARCEL IMPERVIOUS PARCEL °AREA: 0 . 000 acres AREA: 40 .000 acres °CN 87 .00 CN 98 .00 ° ° SUMMARY DATA °PEAK HYDROGRAPH TIME: 8.00 hrs °PEAK HYDROGRAPH FLOW: 31.8865 cfs °TOTAL HYDROGRAPH VOL: 12.2178 ac-ft 12/23/93 Caribe Engineers, Inc. page 1 BOEING COMPANY RENTON PLANT, RENTON,WASHINGTON,USA DRAINAGE BASIN NO. 27 IMPROVEMENTS TO REDUCE STORMWATER OUTFALL IMPROVEMENTS DETAIL BASIN SUMMARY BASIN ID: DB27 NAME: DEVELOPED BASIN 25 YEAR SBUH METHODOLOGY TOTAL AREA. . . . . . . : 40.00 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 3.30 inches AREA. . : 0. 00 Acres TIME INTERVAL. . . . . 10.00 min CN. . . . . 84 .00 TIME OF CONC. . . . . : 21. 00 min IMPERVIOUS AREA ABSTRACTION COEFF: 0.20 AREA. . : 40 .00 Acres CN. . . . . 98. 00 PEAK RATE: 26. 04 cfs VOL: 10 .22 Ac-ft TIME: 480 min TIME DESIGN TIME DESIGN TINE DESIGN TINE DESIGN TIME DESIGN TIME DESIGN RUNOFF RUNOFF RUNOFF RUNOFF RUNOFF RUNOFF (min) (cfs) (min) (cfs) (min) (cfs) (min) (cfs) (min) (cfs) (min) (cfs) 10 350 6.2300 690 5.8503 1030 3.4220 1370 3.1824 1710 20 360 6.5815 700 5.7942 1040 3.3284 1380 3.1825 1720 30 370 6.8098 710 5.7600 1050 3.2709 1390 3.1826 1730 40 0.0309 380 6.9610 720 5.7393 1060 3.2356 1400 3.1827 1740 50 0.1478 390 7.0638 730 5.7269 1070 3.2139 1410 3.1828 1750 60 0.3428 400 7.1358 740 5.7196 1080 3.2006 1420 3.1829 1760 70 0.5666 410 7.7639 750 5.7154 1090 3.1925 1430 3.1830 1770 80 0.7923 420 8.7368 760 5.7131 1100 3.1875 1440 3.1831 1780 90 1.0066 430 9.3479 770 5.4833 1110 3.1845 1450 2.5710 1790 100 1.2035 440 10.4206 780 5.1132 1120 3.1828 1460 1.5821 1800 110 1.4682 450 11.7795 790 4.8857 1130 3.1817 1470 0.9736 1810 120 1.7793 460 15.0308 800 4.7458 1140 3.1811 1480 0.5992 1820 130 2.0356 470 22.4731 810 4.6599 1150 3.1808 1490 0.3687 1830 140 2.2491 480 26.0371 820 4.6072 1160 3.1806 1500 0.2269 1840 150 2.4287 490 22.8242 830 4.5750 1170 3.1806 1510 0.1396 1850 160 2.5813 500 18.7973 840. 4.5553 1180 3.1806 1520 0.0859 1860 170 2.8280 510 15.6266 850 4.5433 1190 3.1806 1530 0.0529 1870 180 3.1345 520 13.6782 860 4.5361 1200 3.1807 1540 0.0325 1880 190 3.3632 530 11.7838 870 4.5318 1210 3.1808 1550 0.0200 1890 200 3.5389 540 9.9218 880 4.5293 1220 3.1809 1560 0.0123 1900 210 3.6777 550 8.7769 890 4.4211 1230 3.1810 1570 0.0076 1910 220 3.7902 560 8.0734 900 4.2477 1240 3.1811 1580 0.0047 1920 230 4.0145 570 7.6413 910 4.1411 1250 3.1812 1590 0.0029 1930 240 4.3084 580 7.3763 920 4.0755 1260 3.1813 1600 0.0018 1940 250 4.5146 590 7.2140 930 4.0353 1270 3.1814 1610 0.0011 1950 260 4.6638 600 7.1150 940 4.0101 1280 3.1815 1620 0.0007 1960 270 4.7755 610 7.0548 950 3.9956 1290 3.1816 1630 0.0004 1970 280 4.8619 620 7.0185 960 3.9865 1300 3.1917 1640 0.0003 1980 290 5.0984 630 6.9969 970 3.9809 1310 3.1819 1650 0.0002 1990 < 300 5.4280 640 6.9842 980 3.9776 1320 3.1820 1660 2000 310 5.6481 650 6.7335 990 3.9756 1330 3.1821 1670 2010 320 5.7988 660 6.3362 1000 3.9745 1340 3.1822 1680 2020 330 5.9053 670 6.0920 1010 3.8211 1350 3.1822 1690 2030 340 5.9831 680 5.9422 1020 3.5740 1360 3.1823 1700 2040 0 12/23/93 Caribe Engineers, Inc. page 1 BOEING COMPANY RENTON PLANT, RENTON, WASHINGTON, USA DRAINAGE BASIN NO. 27 IMPROVEMENTS TO REDUCE STORMWATER OUTFALL IMPROVEMENTS DETAIL BASIN SUMMARY BASIN ID: DB27X NAME: DEVELOPED BASIN 100 YEAR SBUH METHODOLOGY TOTAL AREA. . . . . . . : 40.00 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 3.90 inches AREA. . : 0.00 Acres TIME INTERVAL. . . . . 10.00 min CN. . . . . 87 .00 TIME OF CONC. . . . . : 19.00 min IMPERVIOUS AREA ABSTRACTION COEFF: 0.20 AREA. . : 40 .00 Acres CN. . . . . 98.00 PEAK RATE: 31 . 89 cfs VOL: 12 .22 Ac-ft TIME: 480 min TIME DESIGN TIME DESIGN TIME DESIGN TIME DESIGN TIME DESIGN TIME DESIGN RUNOFF RUNOFF RUNOFF RUNOFF RUNOFF RUNOFF (min) (cfs) (min) (cfs) (min) (cfs) (min) (cfs) (min) (cfs) (min) (cfs) 10 350 7.5343 690 6.8922 1030 4.0151 1370 3.7649 1710 20 360 7.9651 700 6.8354 1040 3.9095 1380 3.7650 1720 30 0.0086 370 8.2283 710 6.8026 1050 3.8480 1390 3.7651 1730 40 0.1091 380 8.3927 720 6.7838 1060 3.8122 1400 3.7652 1740 50 0.3440 390 8.4982 730 6.7732 1070 3.7913 1410 3.7653 1750 60 0.6434 400 8.5684 740 6.7673 1080 3.7792 1420 3.7653 1760 70 0.9517 410 9.3619 750 6.7642 1090 3.7722 1430 3.7654 1770 80 1.2428 420 10.5796 760 6.7626 1100 3.7681 1440 3.7655 1780 90 1.5061 430 11.3023 770 6.4686 1110 3.7658 1450 2.9810 1790 100 1.7392 440 12.6191 780 6.0038 1120 3.7645 1460 1.7389 1800 110 2.0677 450 14.2847 790 5.7328 1130 3.7638 1470 1.0144 1810 120 2.4564 460 18.3624 800 5.5749 1140 3.7634 1480 0.5917 1820 130 2.7592 470 27.7372 810 5.4829 1150 3.7633 1490 0.3452 1830 140 3.0004 480 31.8865 820 5.4294 1160 3.7632 1500 0.2014 1840 150 3.1963 490 27.3450 830 5.3984 1170 3.7632 1510 0.1175 1850 160 3.3583 500 22.0586 840 5.3804 1180 3.7633 1520 0.0685 1860 170 3.6516 510 18.0835 850 5.3701 1190 3.7633 1530 0.0400 1870 180 4.0233 520 15.7672 860 5.3642 1200 3.7634 1540 0.0233 1880 190 4.2843 530 13.5222 870 5.3609 1210 3.7635 1550 0.0136 1890 200 4.4747 540 11.3178 880 5.3591 1220 3.7636 1560 0.0079 1900 210 4.6190 550 10.0327 890 5.2212 1230 3.7637 1570 0.0046 1910 220 4.7323 560 9.2840 900 5.0038 1240 3.7638 1580 0.0027 1920 230 4.9980 570 8.8482 910 4.8770 1250 3.7639 1590 0.0016 1930 240 5.3533 580 8.5947 920 4.8032 1260 3.7640 1600 0.0009 1940 250 5.5873 590 8.4477 930 4.7602 1270 3.7641 1610 0.0005 1950 260. 5.7472 600 8.3627 940 4.7352 1280 3.7642 1620 0.0003 1960 270 5.8612 610 8.3138 950 4.7208 1290 3.7643 1630 0.0002 1970 280 5.9460 620 8.2860 960 4.7124 1300 3.7643 1640 0.0001 1980 290 6.2312 630 8.2705 970 4.7076 1310 3.7644 1650 1990 300 6.6340 640 8.2621 980 4.7049 1320 3.7645 1660 2000 310 6.8866 650 7.9452 990 4.7034 1330 3.7646 1670 2010 320 7.0496 660 7.4482 1000 4.7027 1340 3.7647 1680 2020 330 7.1586 670 7.1587 1010 4.5064 1350 3.7648 1690 2030 340 7.2346 680 6.9902 1020 4.1961 1360 3.7649 1700 2040 C- KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL FIGURE 4.3.5E HEAD FOR CULVERTS (PIPE W/'In" =0.012), FLOWING FULL WITH OUTLET CONTROL _ I 2000 NWi M —� hd A Z W Slope Sd—• 1000 Z SUBMERGED OUTLET CULVERT FLAWING FULL rJ MW•N♦ho—LSo 800 120 For outlet crown not submerged, compute H by .6 methods described in the design procedure/ '600 108 1 / 8 500 96 ar N.jam 1.0 400 84 300 72 66 / �E O 200 60 EX� b O CFy W 2 v 54 O Z (/) D•48 / 1.u0 = 48— — ke•o.5 \00 = 3 100 z 4 2 c9 80 10 /Z Z0 UJ= 4 3 �00 �00 5 N 60 Q 5 0 W 3 3 q00 �00 6 30 4 0 G 5()0 f g 0 27 I �• 0. 0 / 0 "Co 1 0 2 4 tr 20 21 18 120 10 1 5 B 6 12 5 4 t p,tlT��9GL- r9 4.3.5-13 ( zs 1/'90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL FIGURE 4.3.5E HEAD FOR CULVERTS (PIPE W/"n" =0.012), FLOWING FULL WITH OUTLET CONTROL 2000 H HWI _ ho .4 Z W blopt 50—+ 1000 = SUBMERGED OUTLET CULVERT FLAWING FULL rJ J HW•He h0—LSO 800 120 For outlet Crown not submerasd. compute HW by •6 methods described in the design proCtdurt '600 108 .8 500 96 400 0 84 300 72 6 6 6 200 60 E� O CAL w 2 0 / �0 CT UL v 54 Z O 48— ► •a O P-48 `t' iy _ 1100 z --I 00 42 O 5 Q 80%0/Z Zo = 4 �i o 6 00 0100 5 N 60 33 6 5 0 r 400 Fj00 w 30 40 Q )00 >< 8 27 ,r s 0 O loo t 30 O 'r3 10 24 20 21 18 120 10 1 5 8 6 12 5 �. 4 , I ou7F79�L ¢v9 4.3.5-13 6>1 00 1/90 STORMWATER MANAGEMENT MANUAL FOR THE PUGET SOUND BASIN Figure III-2.1 - Nomograph for Sizing Circular Drains Flowing Full t 000 zDH9,F L7?tl N o 7' .S/7bG✓,U, r a00 800 .0001 700 2.0 600 .0002 500 ' .0003 Minimum 400 .0004 Allowable o0ot Velocity 300 .0006{ (Flowing� Full) 3.0 120 'IT .0008 .0002 108 0 .001- o :1-.0003 200 96 n -a:-.0004 90 c .002--T--:0005 4.0 84 cc OG06 780 .003 .0008 7 2 U- .00.4 001 66 w .005 S.0 100 60 O .006-� CN - 90 54 vv)) .008�.002 o p 80 4 8 .01" o w 6.0 70 N .003 w '-42 c to uj u 60 1p�� U a 7.0 .00 U vv-rxgG 4- �- 00�6 w z z 30 .03-� 08 � w 8.0 40 w .04 .010 O w a 27 .05 -j Z 9.0 0 � _ 30 LL 24 } 10.0 S O 21 .08 �.020 10 U N W .030 20 w 18 O .040 w g .050 j Q 15 .060 080 12 .100 1Zt 10 gSAMPLE USE 78 24" dia. CMP @ 2% slope yields 20.0 6 17cfs @ 5.2 FPS velocity56 (n =0.024) 4 Values per Manning's Equation Q= ( 1.49 AR'/,s Y2 °3 n 30.0 This table can be converted to other W values by applying • 2 formula: 4 Q.0 01 n1 02 n2 t ' III-2-8 FEBRUARY, 1992 4/0 kC9)__� rt cy . I) A C K W A T E R C A I. C U L A T I 0 11 3 11 E' E 'f -- (1) (2) (3) (4) —(5) (6) (7) (Il) (9) (10) (11) (1-2) (13) (14) (15) (16) (17) (19) (19) (20) flat- Fric•- Hntr EnLr F.xIt Out.lt. In1eL Appt- Bend Junc Pipe InIoL Darrol Harrl VeI TW tlon Of. Head Head Contr. Conte Vol Head Ilead IIW Sor;meal. Q I ngtlr Pipe "n" E I e v Elev Ai-oa Vel (lead Elov Loss RIOv Loss Loss Elev Elev (lead Coss I.oss tile.v CD to CH (ofs) rft) Size Valuc (ft) (ft) (agft) (fps) (fL) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft) o - ,�. .U/2 9 - � ` --z-- •�� �"_ l,.�— �•' lam'_ ..:Q.''_. .�. �`��._ .lyo .QZ D-_ 12 J 15.. y 0 F. i �-- TIT d 2- Oz? 3j a� ► z 5 2 Z H • H � 110 ct r z �J fp Y. 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