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HomeMy WebLinkAboutStormwater Report - 89 TURNPIKE STREET 8/7/1987 MERRIMACK ENGINEERING SERVICES, INC. JOB "`°Il Engineers - Surveyors - Planners 00 66 Park Street SHEET No.-- of ANDOVER, MASSACHUSETTS 01810 CALCULATED BY EWU AL DATE (617) 475-3555 CHECKED BY DATE SCALE ... ?'lE.� F'� T" PV_ LbP(�1A1T� SOD AU d . 2; a D1?Tt 1LJ ._. W. ` . 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CHECKED BY DATE SCALE i � t i ' I t t i C - �o .............. -0. ............ ........... ............. .......... r ..: : _............. i. ..........:........... .........�............: ....!........... .. .... .... .........:..............t............:........:'. .. .......�v w .. ..... ... i -�A y^ VI i i ..........�............:............ ..i... .... .... ... ... ... .... ....::.`.. .. i. ...... I I jv/j�j�I) L� i ........................................1'.. -C......... .u, , ... .. �.. ....;tom. ... . S -d r ........... ......_ d , .. ........_..... ..... MERRIMACK ENGINEERING SERVICES,'INC. aoe- /'h -� � zip Engineers - Surveyors - Planners 66 Park Street SHEET Ho. of ANDOVER, MASSACHUSETTS 01810 CALCULATED BY DATE (617) 475-3555 CHECKED BY DATE SCALE ...................._...z_............... i. ...... ..... i. ..... t y f _tom, 0-. IV pze� t c ,� arc �� _ ©k Z �� . 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(coq 7�d_ Lop , T or Go.411 SKX rRANKLJ 6.60 IV 011 CLiTER MIDDLESEX SU"OLK NAMMNIRE 6.811 • HAM►DEN 1� RAINFALL DATA MAP SARNi 7.2" 100-YEAR,24-HOUR PRECIPITATION (INCHES) a MANTUCKIT TP-40 Table B-1 Runoff Curve Numbrrs (CN's) LAND USE DESCRIPTION HYDROLOGIC SOIL GROUP A B C D �'. .;*wns, parks, golf course4,, cemeteries, :etc. good .61 74 80 fair 1 ,42 69 79 84 poor 68 79 86 89 Commercial and business areas, paved parking lots, roofs, driveways, etc. 98 98 9r 98 Streets: paved with curbs and storm sewers 98 9F 9s 90 laved with open ditch drainage 94 gravel 76 8�. 0 q1 dirt 72 82 8': 89 Residential: Average lot size % impervious 1/8 acre or less 65 77 85 0-' 9-: 1/4 acre 38 61 75 83 87 ' 1/3 acre 30 .7 72 81 86 112 acre �5 70 8c'' 85 . 1 acre 20 51 68 79 84 Meadow or idle-good hydrologic condition 30 58 71 78 Woods - good hydrologic condition L5- 70 77 fair hydrologic condition 36 60 73 79 - thin stand, poor cover, no mulch L5 66 77 83 t continued B7 ��� w a✓ s It IM�' Aw }lam r �• �_.�,�. y` � 1u„ �� :��+aTTv T%�,.�',� � •��� :cam � �� � ��� '.! •� ,�. �` ' „� i'�Y + �� � r � ., �-j� �.•,�'• � �.yY��}�'*a.nor' .�."r. , 4 •r ,��tYLiy+ ..• is y � .�. � ° fi��+�ti� i'YG��"1 �w9Z't..�,9 it <,S {�', �►.K���'� _ ±F�P �,� � �' saK �t � � -cptly.} � !?t.cl�y •,�.�;�' r}.�.�, � 1�,{' ...d z1 ��r .r� �, P i{�1' jg •, a y ,.}'� - ,:r -N y+,ti t s°5•ii' - :�F -•i.S.Ti"iyR' > „' S+� x-•., r' K rem �M ��s..� ,.�>?n �r d7t�'�.�f� =1. ��. �r 3 � +� `•" .��';:-t "�r r_��t'`r'�. ����.. } t �� '��,•.» M' �G ��•� ~ + � -f dal•� '� �'�'�-. • iR y+ i • E; .. y} f. • �'iii- t. 1Z..: i i:# ,;. f Z •>� �+(•" � ii a yyrl d� r IN t Lf Ins r ttr �y try t } iK�' _ a. ,l �s �+• .j. 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(0=M}:NU) 4 STORAGE PONE) #1 DATA T I MY I NFL'JW FLEV AT 0 N STORAGE OUTFLOW ACRE- clys CFS 133.5 0.0 10.0 0.0 0.0 0.0 10.14 0.0 0.0 1314.5 0.0 2- /1 Lam(-10.4 13.°.5 0.0 133.6 .2 0.0 .4 0.0 1.1.4 •4 133.9 0.0 13;1.9 Z,0 4.4 5.8 136.2 Iz.Z 5 1.9 13 4.4 0.0 13-1.1 0.0 134.0 0.0 0.0 Iz.8 .6 Is 3.8 13.2 0 122.8 0. 133.'7 .4 .4 13 3.7 0.0 D'o 13.6 .4 .3 133.7 0.0 14.0 0.0 1 '2 14.2 .3 .3 1 0.0 14.4 .3 .3 111,61 .3 .3 .133.7 0.0 14.L' .3 .3 133.11 0.0 z 133.e 0.0 z 123.6 0.0 15.Z x33.6 0.0 15.4 z a 23.6 0.0 15.6 Z z 133.6 0.0 13.E 2 122.6 0.0 16.0 z 133.6 0.0 16.2 .% 133.6 0.0 16.11 .2 .2 133.6 0.0 16.6 132.0 0.0 16.8 133.6 0.0 z 133.6 0.0 17.4 T .% 11.7.6 .2 1'33.6 0.0 17.8 z 1-33.6 D.0 133,6 o. 18.0 z z 0.0 .1 133.8 0.0 I8-6 x 183.8 0.0 133.6 0.0 19.0 x 133.6 0.0 1s.2 1 133.6 0.0 133.6 0.0 123.6 0.0 133.6 0.0 19.8 x 0.0 S:'GRACE POND 4Z DATA - TiPtk F I%I Fl,OW' - _ ^OUTFLOW _ ELEVATION 8'TORACE Hh. C:1 C:FS ACRE--r T. .. _ _ ..._. 133.w U.0 IM; 0-U 0.0 1.0.z 0.0 0.0 133.5 0.0 1C;.4 1 .1 132.5 U.0 133.5 0.0 z z 123.61 0.0 0.8 G- 1 .0 z 133.6 0.0 D 11.4 .3 .3 13$.S 0.0 1 ..4 .4 .4 133.7 0.0 ` 6 n 8 133.9 0.0 3.:? 135.8 .03 1.1.2 7.E v; ?. 0 9.9 S.0 13G.0 Iz.z 1.5 1.8 a3�1.3 0.0 134.1 0.0 12.6 6 .9 134.0 0.0 l2 5 .6 6 133.8 0.0 12.G s Ei 133.6 0.0 .+3.L •� 5 133.8 0.0 13.4 4 9 133.7 0 0 13.6 .4 133.7 0.0 18.2 4 .4 133.7 0.0 14 0 3 .2 183.7 0.0 3 133.7 0.0 i., 9 .3 133.7 0.0 3 14.E 3 3 13'3.7 0.0 14.£ 3 .3 133.7 0.0 15.0 z z 132.6 0.0 'l. 134.6 0.0 15 % 0.0 15.4; z 133.6 133.E 0 0 15 5 L z 133.6 0.0 15.8 15.0 .2 z 138.6 0.0 18.z z z 133 B 0-0 18.4 •?. 133.E U.0 z z 13 3.6 0.0 19 z .z 133.6 0.0 17.0 :? z 133.6 0 0 17.Z z z 122.6 0.0 17.4 z Z 133.6 0.0 z .M .33.6 0.0 1"?.S . z 133.6 0.0 15.0 z 2 133.E 0.0 z z 133.6 0.0 18.4 l 1 133.5 0.0. 18.6 i�.E 1 .1 183.6 0.0 19.G 1 1 133.6 0.0 lE.z 1 1 133.6 0.0 19.4 .1 .1 133 6 0.0 1 13c S 0.0 133 6 0 0 to STORAGE POND #3 DATA OUTFLOW ELEVATION sToPAGE 71311E INFLOW ACRE-FT. crs 10.0 0.0 0.0 1 0.0 0 0 0.0 ias.li /0 " 1'23.5 0.0 10. 0.Q 1,133.E 121 3.6 0.0 10.8 z IMe 0,0 0.0 i 4 .4 1 6 .8 134.0 0 4.4 130.z •0"i ii.9 z.0 4.4 5.3 137.1 5.3 0 f.0 lZ14 I.Z 434.2 .6 q 132.9 0.0 .6 133.0 0.0 122.8 0.Q 1:3.z 133.7 0.0 4 4 1 :.B. 0.0 .4 .4 ­- .4 IM? 0.0 133.7 0.0 14,(% .3 .3 0.0 113.7 1.4.4 133.7 0.0 133.333.7 0.0 .2 .3 133.7 0.0 133.6 0.0 15.0 133.6 0.0 133.6 0.0 z 18 1 3.6 0.0 z 133.£ 0.0 z z l 133.6 0.0 133.6 0-0 ib.2 I IS 2 G 0.0 z z 2 S.6 0.0 16.6 133.6 0.0 Ih.a z 0.0 1-1.0 1 133.6 0.0 '7 1., 132.6 J. 1 133.6 0.0 7.4 .z z 2 133.6 0.0 133.6 0.0 z 133.6 0.0 Iv.0 .2 z Z 1M6 0.0 1 133.6 0.0 323.6 0.0 ip"s :33.6 0.0 1 0.0 is.z 133.6 10.4 133,6 0.0 133.6 D'O 0 2.6 0.0 OUTFLOW HYDROGRAPH FOR POND #3 CUBIC FEET PER SECOND HOUR sxxxxx *xxxx*x *xxxx* xw 1G *� 1G.Z w 0 10.4 * .I l.,b wtiri,� 1.x.4 11.3 xwaw +lxxwx $ 11.3 xvcr:x *xxxx *�tx *•rrr�t*x*,vxxtc***xxx*xxx* vc�rirx *x* xxx *xxwwxx* �;x4.�} 12 *xxxxxxxxxxxxxxxxx**xx**xxxxxxxx xxxxxx*xxxxxxxxxxxxxxxAxxx *xxxxxxxg.a li;.Z x **+� x ,xxx+� wxxxxxxxxxx *xxxxxxxxxxx+rxxxx•xg.l ,2.4 *x * xxxxxxxxxxl.2 1z,6 9 12.8 *x * xxwx.6 i3 w• wwxx* 6 1�.'L xx• xxxx,5 1 a. . x y.w. 4 1.3.6 wxwx.4 14.'L 14.4 �0-r 14.8 xxx,g 15 ** .z 1L-.2 * *.z 15.4 *.z 15.6 15.8 19 * *.z le.z ww 2 16.4 16 .6 * *.� 17A 17.6 111.8 * 18 w *.z 18.4 *.l 18.e * ..1 18.8 *.1 18 16.6 *.1 za *.. ;.USCAT ] FJ AREA= .6 ACRES CN- 74 TC= 8 PEAK FLOW= 2 5 CPS RAINFALL= 6.4 INCHES f SUBCAx' ilZ I AREA= .5 ACRE I C N- = 78 PEAK FLOW= 3 8 GFS RAINFAI..L= 6.4 INCHES SUBCAT *3 AREA= .1 ACRES ctq= 76 F E AK FLOW= .8 C r.S RAINFALL= 6.4 INCHES AREA= !.Z ACRES i C rat= et T C= 7 PEAK :T.O W= 7.8 CFS RAINFALL= 6.4 INCHES EXI 'ritvt; RO:I'rING DATA EXISTINC MEMORY DATA MEMORY I F E A K FLOW-f7.3 CFS -�O fV-t MEMORY 2 PEAK FL"W= 5.8 CF5 EYIST'ING PONDINGyDATA _ POND +s 3 Pt7ND #s l PEAL; OUTFLOW= 5.25 US MAY. WATER STORED= .05 AC. FT. PEAK OUTFLOW= :x.26 CPS MAX. WATER STORED= .0:i AC. FT. POND 0 2