Loading...
HomeMy WebLinkAbout1989-05-01 Drainage Calcs 10-Year Storm SPR WITHDRAWN pII lti1iYG CIfi(-G 5 - P, GCl1C.�?Hn� Cl/1 G yr T item r(L CG/L(i i X/Oand A2,-)COV&Q- P</fE 1/C2cG r r` r Lr ry r Arum r�c`G �i`t�N) 4l< 00� izz Gnn ate, J lay 3 � , asS /o , i/�7- 3 6 ,/8y l-ty y oy3 OG ,Z r°O , // 3 �r /�c� or��rN�,E cr►-ics G�uE usl,�� TIt� il�#Ticw�rz. /"lF�o OE77r1 LS, I i E 13,a 000 R. ��t / /; � wMw �Ww C � , FJS �psSuKrro �c�S� of �ia�- SarG f(f p G6�D!i ION S� �h n!1 1 NHh �ury e = s,5 Zw�. �c = S r'/rf/1 rU 5 E Paen Ci/1455 J 11zf/ 6 ar r rG N NaN10GI1rMr a z 8S) L = 230 ' G i Y7ry r� a'f3 A I I i i � � c� � s C � �8 L,._ - 3 5 s = i. s��a (� - ..�,� �,r�lf�� Q/PS" -- Qr /4 CAS Ada ..�_ c/�„S_w_..,...r...._.. �.. «< ��� 04d zz= 000 nno nn�i :nil .., a 2 4�t o 4 2 ,�TL�f�' �` , a31 f'r G = t 9a L _ y�, , s - /�s �1a I I IVY i GQ � a^� Q O,3 S (CATS� 4..r.v1 zzz Y7C m#t off" z S z 461dF) �7 g),v`/ /o: cllo E E ------------ �a 11� 9t� _ , QG •� 9,5 vop r�� G ^na; NAM; 1 Z Ito ,gjZcl /a = , RY aQ� NNN wNh IZi N v1N oon n.h J S �S Z G - gsr Q Por i i i i l �a [ff 3=8 000 CNN NN` SSr NNN �tltl 44 ..NM n toll, J Q s Z Z 'All 9 Naw, St Lc Da-vn] L!NES I aYL SauTH SIDE t-t4s7-, S41MM NG FGdwS t�?L.. 771-75 SIDE: cQ ( A 3 9 c✓=5 C8 0� �9 C3 3 c� Y Q,a y c� S Clio aon f yd�fa JT PD 1!y xzx _ aa� 70]'" -L S 85 G`f 5 _mx• +Yvj J ��c� Sze prPE ellem I311.fH #( 743 eWs[7,�,K GCS a�,) tTIMS'H(tj darvc z CUsG 2cP r ,4/) pipe Del H � I � GP, aN L ��I /"7z,l�- //J i ewsr Gd - TSB, 8 f cave, t j�1V our a7 1,,j V 1,1 cb oZ 5' 8S f i Pr Io i erlstG 040 nNN /N V CQ # 2 ' /�J/I Q�J �" p�J / r(/ 0�.5 !• 9 S nnn, tvh� a z 3J V /N✓ ca ' / = �3�'(aa-) �,2f,?,9S = 661S1 Spy "0,6 aD 3' /AiV a7 0"/( /8 l��f� f ,75-9, 8j = 077'0! 77 7Oi �5 c'oa ••. l�� O✓ CQ 3 02� f/, 0/) t �7Q, 7-5r ���� 96 Sr4y o2F1, d co✓t zzi oon r.nc 4t¢ / t L- 57 r !NV c+J .� `3fCr0� r r 0'"!'rl !J ���1 •/� Jf�� P"' �f J u5� l�-" /ZGP G? ,S = , o3S ✓� �, r—r(sEc lN✓ aD C13 *q = 3d `1a3S) r,2 70, d?.A,0 SAS I I 0-= O. SS YY . 1. 99 CAS 0,5 C 2CP 0 S - . /o v- Fl Frr/Srz.. v7 t3• D - 07 73•S 000 +hh NMN =ss NNN dtl0 +Oo �ry ..hP meZm nc5 a N �1�2 z �#o V� 1N v a"} per// # 3 = 2 T�, o /N v �D DrrN 0 K 9, a Q = pr 5 S' CAS 4z/3 S = , 16 rkjV o�H 71'y = - = s. L i 01'ry 3 IiY6H PT r J=J 00 NNN nnA p r W� U.5e CJ rr �Qs cpe It IT r.oa Z G 2 } f /U",w, -r�P�z IUan l -1 rlo E 60 �F 17D a 0,35 �ja q aoN 'ry 75 ML- 7�r 1 1 Grp flrlm 1 Y�rvl Yi O'rnC - ca # Ia —� Ca,vdErzr�� Ca i L - 8 ` U56- o", /NV Gam V, C6 EX1's n G lN 8r(61) p2102, S�- Stf`/ TO 6�nll/E2rCD G5 GZ 7 r �, o 5r� Gr"5 L- l7r a24 �, Y�f curs 7-7 /N✓ 26.2, yY . i j i i o5� l P a'7 S = , dI III NNN oan rv{ DIV q 8 TD Sr 3 Gr'S pi v �ftL1 024 r ! 03 # 9 L /-5 "As Iliv v} 613 '`, 9 = E { 8 �, r6 �a NMI -r NNn DOO v)Oh <v P nv1 1 NnM S �ef1 Z At pmq Gr �6r alew� fo S y , d 3 S I/- �.,8 /s o2, 3 U5E Id," lIC12 S = • o I ,, IAJv a� C13 6 � r, 3 t Go`o�� = air► g 10, ,i a - 0,35- t ai ra - oz,sr cr-s rfvv 6,6 - 2FA 3 y6 '�6�� aoa NNN siz mz r,nn, r:r+ i ffI Pooh- 7z PMH # 6 Lr BS !NV ff r ndr,v r 11,jV 40 C/,l-- 6 = _2 8�p 5D S ,/o f�= 9i S" I/S i E DRAINAGE &SEWERAGE--HYDRAULIC COMPUTATIONS-4 1000 1 900 800 700 EX CT'P18 5. aoo frlClion f'acfor n= 0.0/5 600 5100e ol, 0.0060'Per- foo74 Fi'n d dlarnefer /S i�7che5 crud 400 ve/o ci ly of 3.S {t Per second, by fo/%cuiny dashed N7e. 300 200 .0001 2 120 .00oI 108 .0002 p 40 .0003 OOOz Li 100 8a 0004 .0003 90 72 .0004 3 Un 8o N LO .000b W 70 Li= b6 d 0008 .0006 E` &0 Z 54 O o010 .0008 E2 N AO(0 w U 50 48 (! 4 W 40 Z 42 .0020 {L 39 p 0030 .0020/ z 38 . 30 Z 33 .0040 030 O S Z W Q 30 W .0060 00.40 tL_ ?- m 20 0080�, W Q~ © 24 J/0100 �'0080 0- 6 U U W 21 .0100 O O U7 O / r j 7 W 18 / .0200 > f0 W 15 .0300 0200 8 .0400 ,0300 8 W 9 7 ¢ 12 .0600 •0400 g .0800 .0600 10 5/ 10 .1000 ,0800 I 1 .1000 4 b 12 13 3 6 14 [5 z NOMOGRAPH FOR COMPUTING RE UIRED SIZE OF CIRCULAR DRAIN FLOWING FULL o.s n = 0.013 OR 0.015 10.8 Ada pf d rrorn E'ngineerincj Manual, War De,p�a,r� rnent, Carps ofEngineer's� POrfLC1ll, Chgd /, .lure 1955. + DRAINAGE RUNOFF - 1 n en ¢F too x kn v sw r us FIG. A.-ONE-HOUR RAINFALL,IN INCHES, TO BE EXPECTED ONCE IN YEARS. TO ESE EXPECTED ONICEA IN10 YEAR Fib. C,- ONE-HOUR RAINFALL,IN INCHES S, , TO eE EXPECTI D ONCE IN 50 YEAR5. 1 � =iz $ tiTsi5 ^ In 0 lea 1J(+•j ts. �''Jti _ 3as <n FIG. D.-ONE-HOUR RAINFALL IN tNCMES, FIQ -ONE-MOOR AINFALL,IN IfhfCHES. c FIG. F.-ONE-HOUR RAINFALL, IN NCHE5, TO BE E—. XkFCiE6 ONCE IN 5 YEARS. TO 8£ EXPECTED ONCE IN 25 YEARS.,. TO BE EXPECTED ONCE fN,100 YEARS. ` COMPUTATION OF!L. M PAT/ONAL FORMULA.EX.AA4PLE:Assumeexpectcrrccz period =.5year5, ses�y,'D, a5_5ume /oca/ify,find Ihov�i�/ensi�y-/-771n.per hour FIG.G-INTENSITY EXPECTAT-ON FOR ONE-HOUR RAINFAL-L' 1000 500 800 35 700 ee o 17 d 30 Soo Fbved Z 25 i �D/�flFlO{Y 3°0 U I50 f 10 •..-.� -•. ...� ---•. _ p u1 li to 200 Bare _2 2 9 b,Y.}AlP1E: il�n.'4rco-/.B oCPcs,orarcga gross _ O _5fr/ace,/on es/orer/ond fhry a � Soi! u -� x z $ l i Difch f/o�Y zpOffof.IS6g�` ' •.1500 of 06'%_<Rue FbarGrass i 7'f d Surface Q Fo a 7 • i r•pv MOW _Me r1G.N of jcff a IS•ryin. a U > 0.5 p Inw For 011ch f/a ,drsu�nefric/Q=3cfs,cn4i I� �vcr Gras I5 Z Charff 5.0511_?ddifch•D•1,V•I.7 urface _ U Fc I,a fl 90 S g :Ditch fine so J F z 1.7X&O c �- 70 Dense \ 5 �1• Q Canc<nMotlan rAinre r:75 Curie from Fie.D 50 X�IIpL totu N A I!.i otiose, Find i Z° i- I , } to V z 3 I i r� 30 F- 2 i 30 \ 3 20 r 8 G D� 10 20 30 40 50 60 70'. 80 90 100 110 lib 7 IlGSMin. DURATION IN MINUTES r �! l0 G Conccnfrofion fimp in Exom o/c, FIG. H- 01 -ERLAND FRIG, J- VALUES?OF L - F L 0 Wj TIME. .` RAINFALL INTENSITY-DURATION �cProduccar born Mr'sce//or>eoLs pub/rcpfion rYo.zoo U.S. Dept, of 9 �yy .fdopfed From G�i7ginecr%n9. rYfonc/c;'/ of fhe• iYor CJe�prfineryf; Pore �fifo0 I • t 5 j . • i I Professional Engineers and Land Surveyors 160 SUMMER STREET HAVERHILL, MASSACHUSE.TTS 01830 (508) 373.0310 February 14 , 1989 North Andover Planning Beard i Town Hall j 1 Sri 1--1a1 n Street �. North Andover , MA 01845 } Dear Bo--krd Members: Attached please find a drainage analysis for a 100-year storm for the proposed Circuit Repair Corp . site can Flagship Drive . The 100-year storm runoff is mitigated b>, use of a retention area . Also attached is a copy of your Assessor's map for the referenced area. Note that the C i rcu i t Repair building k,,ii 1 1 be at least 400 feet away from residences on Marion Drive . Since F, }`7 t. 5 Pz.0 1 A . Be r gma.n 7 Attachments