HomeMy WebLinkAbout1997-01-24 Engineer Review DEF SUB L-j U IL t=" CSk
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ma Kathleen Calwedl
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e.tl h.:tEtl(7 5tr'e4`t }-Y
1�l i li Eck V er> -C 01134
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RE_ Engineering [Roo v-je ,
ctt 1e Ridge
Rc-sidentia'SubtlMsiou Qefinithwa Plant
��r lvis.Cchv$tl_
irl response tc.yout ret wst,Cofer&Colarrtouto, [m-,ha�i mvieSVed th-3 submittal package for the
zbove reteceaced site. In addition,we halve visited the site to obswrve existi7R cuoditions. The
prqj+,^ct has been reviewed for conlurr mwo to the rerlrrixe>,ieuts of tbe'Rules and.Regulatio-M
Governing the Subdivision of Umi'i►i North Andover as ill as engineering practice-
T ho nrebmittal lxwktfge inlaid the following information:
• Naas Entitled:`^De#initiw Sabdivision Pla!rt Settler's Ridge located iu lorilt
+r lvkover,Mass."six shm-6 lag:ravised 9i25;9c+. Prepared by Christiansetz& Semi.
r A npurt euAiLW"Settler's Ridge North Andover Nfassatchwetts Dmira eptlrt"
dated Saptenxber,�, 1996 w4h a revision sheet dakl 9;23!%all prepared by
Christiansen ct Ser_gi.
We oMr the follr,AmIg cominents:
l, '1?1e site is located on the westerly side of Bradford Stm approeunataly:300 Feet nor tit of
the intersoction of Bradford and Barker Sheets. Additional undeveloped land exists on the
Month and wtebterly sidesy of the site. The site slopes to a wal-aad area along the n.ortht s ide of
the parcel arad wetland tribat n ies appear to intend into the upland area:in three locations.
The site appz�ars to be subject.to a!sigh water We along the slope,based on vegetation and
the presence of flow charnels in the slope.
Planning Board RvAtda fiGus:
2. Sectioat 3.G 3.c,)Seepage test data is not required for on-,gite wwewmr disposal err this
�,esi ►c�uldliorred zr1 thr hRtP,Ir,C. 1,:aclr,1s1
determine grot ndvAft c•depitt.
3. . Section 3.C.3.d.)Corrrrnents oa the drainage design are IL--led Cruder"Drainage US,tag" �
Ir on. N
i
_ Q
101 accord Fart;Drioa,Sate One 517-�12-541>)
a
5
ate{
rl. Section;.C. 3.p.) consttvctim 36:a Jule should I>--provided prior to erido.gcrrent of the
plans.
.. h. CCi:t€_)II 3.(;. 3. The pf•ltis Shot3t=J indic4t;.:erasion caulrol mersures at the Calvc�r i cressitaR "E
I
and�istirlg Grain'age='bazt.nels. C,i
kfi
. ti. Sertimi 3.C. 3.lc.)i,"i ire v"Qm€n<ud that the �-xi3tittg€frainago chameis be prtjtected by IT)
. diai_lag4 eawiiients.
...
Sedirrii 3.C. 3.1,)l..) Contotos do not extetrd 50 feet beyond the".,erLy limits as..........
?�. tiecticxt 3.C. 3. k.)p.) Profiles elo riot indicate vertical carve data it 25 fiat stations as
rNuireJ. 'Piere.an:wveral contlicti with the drainage.Vsiem and the proposed watermairr:
9. 5eciice�,It is our ttrtderstw,diug that die"Statc-ment of Euvirom=ntsl LopacC' is typically
.00r regtgred for this size project:.
10. Seetion 7,A.4.)a..A ,vaivef.from the rugulatioas for a cal de sac ove,itac allcwable length
oC CAU re;eL has been requested. T1 c,plan appetirr'3 to conform to the conditior.s required for
this rva.iver to bw granted.
A. It is nn:tear if t'-,Svver a xtcasion du\)ugb the land to"rile crest has been s4binitted to the
Town fc}r approval, 4 plan and profile of the pro pceed sewer ihould No provided if none
exists. It is unclear what tiro length of to propos"etl extension is sirrce(W data S"Us p a ided
beyond the situ limits. ilia:�ppli€ Lsttn€tldprm�ide tbe.l?lar€ni_ttg Beard vdth i.nfnrntaciau to
demons rate that sail applicA)le pt-mrits and noti#zcaticns can be obtained,or have been
obtninod.
12. The 7.onm9 B,rla%s Wicate that tho 5f)foot a€f ier zcm--le to ba left in a natural state. '
Grath n ;n iuted.ti ith sicir;se cot',str'uction is indicated in this zone on lots 6.z-rd 1 1.
Dratnagu Issaesz
13. A redsced plan gtdicating proposal subareas was included in the reprrrt. 'lire report aLc� .
refexenmd Lao USGS locus for additional area mappi.ug. Sabareii plans should indicate the
flativ path used to develop Aw tine of coAcentralirni. Na existing wnditions subarea plan
and a ctitelrcoor€tplyi€t tier catolt hajs1W should also be inchided.
14. Based on soil deseriptirns and site c rvatis)n,,it is lj t:J -that_ezouridivaW.t'Aili-,vr-�p uoW,
cis slopes in the road;md.to the•detenl ioa baste. This could result in unstable slop a
c�xxliti€tas. `lire submittal identifies subdrainss will be installed for tho-toadwav cut-.
SeT;ip at the detention basin should also be addressed.
if Tfo dafaYts have been provided fat'consrrur-tion Of the dikefcr the deti:mtiou baiirr. It€tppeari
+hatkh�tt�n nt the_dil�c-�..app��.�1'=12t�1�v four�eet�vicle in soiree lcrcatinns._rlccr�s for
equipment:to the role+ sad outlet should be proOded. Ne recosntnend that dateation basin
dims ba designed consistesrtwith guidolines in A5C•E Manuals.and ltepocts of Engirteeritw, �
Practice No_77"Design and Coustrvction of Urban Stonnwafer hLanagcnxnj syst-�ms." P.
s
iG, We:4cotluuend providing a ramp inlet oo the uphill side of the road ,tiav m station 3 -25 ,-/_
to pier~up runcff in the cxistina chanw 1. Flow in this are:ai w luld o herv�ise diwliarg<;to the
stmo Cor colkccion La dt0 cotzh,bo;;ins. Fmviding r�tlr mlei would t:xh,ce[x=tcttlial icing �
pnblcrnt;in ht- U1tis drat:.inlet would also lh a gpod)location For COlifieaing
SLlil(11!.1)k'i`:associaled Vr idi ro-3d ay cut 9I0p£3. �•
4D
fr7
17. A stonti rip rasp esnergoncy s7rillway sAjou d Sir pray idec on th3 dctentime basin dike to diret:l
the overflow to a stabilized area. 'S his spi:lv,a;J would scrvv as ait egncrgerfe.y raclx-iip if(he
cutlet stnictw-Q bee:anw plugged. This sp'i;lw,iy should be si7cd to 1:,st i(e a 100 yi!ar storm
_ ._ :itfirth�tsut .tr� �_' l -cal��nl triRuimiicate-thaw 01
a! lflt5 year norm with Ow lower--mitlet cilagged,howovor uo taoviciotis for a ewer la;;• r��
T,
T lfway woro pvovjded,
13. Thy calculfuCioas shoilld inchAe data 11sed to dewaiop rip rap sizi at stor'll ater olak-ts.
We are particularly concammi..wzdt di--ca~culatLj velociti35 at the propo>d B inch cross
culvoltatstati.vnti+y{t tI
�. No detail xwi-s provided for ttie outlet stnwtuio. 11he d=sittt of the outlet sxruetive-should be
i.t oekatvd tc allow us to evaluate tic ackquaoy of the structure to preuz�ztt ck-s"ihig, z.tse of
maiatenauce,etc..
We>rllp(euiuty IN oppolumify w a:slst fhe9 PlannutgBaar-j an this p-4-1ject and;nope that this
iltttumtiol b Mufficient for your heeds. We~would be-pleased ra.meet~with the Board or the
design ettgtloer to discuss this projae;at your convenience. tf yvu havi;my questions please do
not hesitate to contact us.
Very truly'ycrtixs,
COLER&COL4IrTOMO; i\C.
3bai C.Cltessl�,P. :
xe Vaumas D.Zabomiko
Ch istiartsert&Sergi
z
a
t
COLANTONIO 'L,
I d, 1996
Nis. K'Itilleen C111 ve,11
Planninp, Dive-aot
LIO Maki stfev[
Niq-ti, An(:Jovej-, MA 4) 845
RE Supillemo)"al hn�fflee-rillg
Residential Stjljdj\'ISIL)jj I)efinift\C I'Lall
Dvat
III response. to your request, coler & Cotantonio, Inc. has xevieued aadlIMM"I 4r1k"IM111 h
stjbnjiqed for the above referencedprclief:t. This coi�respotldct)u- toliows the numhei,m4
se-qkiencc cased M our initial review of,the Definitivo plan. 'I lit lollowlq allotmatioll
0 Revised Plans Entitic& "Definitive, Subdivisiot) Plan 'StMII(2.r Ridg s e Iucaicd
in North Andover, Mass.'" iseVen ShMS IW;t revised 101 3 1 '96, Pieparcd b\
Chris;Oallsvn &
0 A response: letter dated October 1. 1990 prepared U) Cluisoutsell 'Sergi,
We- offer the toilowing cclillnlents�
1, No I,c,,ponsc required,
Pjamlijug Board Reguiatiotis,
Tt is, otir understanding that testing will t-,e performed, '1-'hc response letter 'mdle.Mcs
that groundwater is 18 inches below grade
No response required,
4, p,, bmitted,
portediv a construction schedule, tias, been 5ti
5, Rip rap erosion protection leas beets added at oulwrts.
111/14/96 11:26 110. 1 SO (M3
is
6. We differ to the .Plan.ning Boards Judgment rep-ardin.R fOr
Oiannel:, In our opinion they should oQ provided aiid be consuste-rit. in definition to
ether drainage casements oil the Pi(all.
7, We differ to the Plaiming Board'sjudgmen( regarding lopogniphiQ-,,urveti limits.
This parcel clearly pitches from high areas oil the south Side to a wel-land area at Ifie,
northerly ptopetiy 11mil
8 8. We differ to the Plaiming Board's iudgment regarding, stationing of vertical eurvc,,i,
We note that it is not difficailt to provide this chma-
9. No further response rQqUll-cu.
I(.). No ful-ther t-espolise required.
It. Reportedly a plan for the. offsite sanitary seiner has beensi-ibi-nitted to Ific Town,
Drairlagt J'S"VO,
f
Reduced scale subarea and catcluilent area plails, were. provj&6. The mooft ficm path
would likely be along the oxisting drainage charincl rather than overland. This would
not have a si.grimcant effect on the calet-danows.
he
e in Cut slopes 1.� 11ol
t4. The response. regarding subdraifts and
proposed sub(Irain is located aiotiv the roadwav at the base: of the (Alt 3101)C. 11'
Froutidwater is at 18 ioehes; below grade 0 U: i.melear how the subdrain ai the bottom
of the cut will intercept breakout in the .dope, T.ypiAly, are installed at the
top of the cut slope and stepped if tiecessan, to prcv,tit proundwa(er breakout,
15. Details have been provided for comp tructioji of the dike for the detention basin, We
recon-miend that detention basin dikes be, designed eom;istm With III
ASCE Manuals and Reports of Fligiricering PractWo No, T1 "Design and
Cons tru otion fUrbanSto -iat I, ' lairagen-ient S}Ste,1115
17, Satisfactorv,
18. Calc.ulations for the dimension of rip tap stones have been provided and aro
satisfactory. The length of rip rap is indicated on the Mail sheet as eight f"—( at.pipe
ends, This length has not been justified, %Ve have calculated that at least rip -fap
should extend at jQam 17 1'eet front the end of the eighwen inch cross Culvert. Using
the 25 year flow rate presented in the. calculations. It may be, desirable to provide a
grate over the eighteen inch culvert as a safety precaution,
11/14/96 J 1 26 t aCi. A J—cj
A detail has peen provided (br the Ott'let Structuiv, The oude.1 Strllc(urz should he
provi&,d with a trw;h Pratc to Preve'ut dovgin�. wo rcoomllicild Ih,,( tht: trmh g1fal'--
be sloped and that opet)ing be specified to mil-Jillizo clogglue- 01 Ifie uash grate cmid
(Ile ;41-UQMre 111letS.
We appreciate the opportmity to assist Ihe Planning Board oll IIW 'Ind 11OPQ 111M
this Information is sufficient l'or your deeds, We would be pleawd to meet N-1111 'tic
Board or the design engineer to discuss tills project at your ("Onv(mietwo, It'you have, wl),
questions please do not hesitate to voiltact w,
(1)1 A N"I f N I tNJ
Y1
COLER
(710-/V\FONIO"I J
FAC SNIT E COVER SHE E T
ew)[Pally" lovvil of North A100 ,
Fbone- (508) 688-9535
Fay 6,1%8-11,W
From-
company. Coler
Phone.: 98 2-544
ra x- f)i 7-'A 2-5491)
Rage$ includilig I'llk
cover pauc:
Colmne"I":
Ra rw ot S,-rt ley...3 (6dge
COLERF--�
COLANI' NIO �'
FNGHEOM;�hO
ft"I.Lug Direuor
120 Main sucel
north Andover,MA, 0 1 tW
RE. supp,cm.enw Filginecuil)y-R�,V ie.w
Set-I oy s,PN i d ge.
Deat-N1,.
In rt%ponsi,10}`ow request ('()Ier o Wkln'17 i0f,11ULAMi
".kI I Omitiod for 11-C above Pro Hlis- o I:,p,It �( I )!I
se-quencc used it-,utu i )itk.J rt�,vic4v(jrth� Del it,itc,L.1111-
Wt�noto that in Dqw0mm JAT
V.1)d Yegulmium wavwnu'l In wodificaticums t..) tll, It I.i ut"A"-w if ilk
sftbjcdcl,) ffi0juri"Mictio')oftlit."Rivers Hifl' P-le i-CLI
pokov 1-cs!aF&ng stsprinwalcr mw1alm.nic-111 1.8uv"d Nwt.ltd-.�f I -,I(- V
JAIJILy
IX'c OA r die fi)[IoMf�g com-1wri(s
No tv,-spofist- reqLAred,
plaiming BOM-d
2, It s L)ijr iTcj&,r3 landinj, 1.1int will b.- rcspowi c ,101cr
that grnundwawr is 18 Mow iarixfi
3. No itsVon3i:mik tircd.
4. ftportcd)y a umr,;irucl itm Ndl-;�C:MJ�!hii:; L,(-,t;n �:iy
i. Rip nap en%s5on ImAix-Ailyn luti been Add W
11)1 Apxcd NIP OrFvr-_Riftc,Orw
6, We defer to the Pltt:nt bigr Bno-rr.s j Agment regardlog for -.xistmj
climmels, i€t oat pinioa they shotlld bz provided and be ccrosister_t irr defr
ctt}1(I'r cll'airull-e ca;emmis on the part
Wc defer to i ePlal�nk.g BoLnrd'5 ju:lSri-c-n: rcgaA:ar'r;t(v)ugyaphic' }urw-,.y li
paxol Aoal•Ly Pitc;ltt::s fron.hisylt are,-u att the south side to 1'nctlalid atta at
co-1herl�,'proprwrLir limit.
8 We dr'icr to i.he l'1.�tttxtittg I gardii>.� sts►lirn:n,s 4vcrticttl
We.slow thal it is.iiot difficul: 1.)provic'e this data.
4 14o fnrtll r resll�yr.ase required.
11. iLi<} furthN:response required.
I. Rulkoiledly a plan kir the offish s rai.�ln ;.c.4vrt rlel lt12,'tr c;nhr:tlkK-,d to ,frt; t
lxaist:t a Low e.3
t No turtllt�r E-youse,twcL.�,x+ry-
f j "1l'.c nu#,tti3; rZ r;�lilirt,',sr.f+dt'ai3i,.-an i sc'el,,g(K till slojx:s is 1101:xlllslitr:rt
p-Oposed.;sttbt m.ui is lu+;t:fer.l Ilk-mg Ilse loadway s'. tbe. hise+ri tltu e-it;Iopc.
g,Tixtr•dtYater is at 18 iticlres I)CI VY (Ita(itl il.i,14 to€('t(.rr lrci.w tftt-' s.lhltaiPT at 11
of tfrc.L:t:t w;ll ixrter t—pi bte?.1;,+.1t.€t in tlA suMmius ara•itasi
top oj_thc; cllt s_c,p<: and �,Lq) ac:d if' trr ;tr wer] groutYci"w-ater. hrcak(
Cbr0.-i"arv"-nl& Scrgi !>tateo thait a domil for sh-pe stlbilizaticrn
atls,":? . : € to artdnr,crttanJ cal-f:u:p):um would be plen',J'. l to
ilia' t•el �,itl (}�', Ik::.
I })o aik have bewu provided lily corstructior. €11'rlio d;ktr :ar tht,ciet(xaliwi lea
rcccrrnrleridthat dt::tention I-isir, tlikcx l.c ;:atrtsitWxAl %-A-Rh midv ir.
A.S(T 11!lartiAs'djulRo?orO{)l f.D'�[1Y[' tli1 ,}i§'tlClic'z lb.).
.f' `!lt:i!}?Il
€. ollArli;tio I o l S (?tltry alct lit ir'11?yd11(Ji(`.7 IC?�.at' �.Ci]tll7-IFIII.('+ tit
dcsigl.) gW(lcliltc,';cw( l;l t';t it! ' iit .lt:i'(illrtltnl<Itrd lt� thi l?ttxC(L. �'L'rtCib:i
1:)T:l' ttidaltc c on de€c-ntioa 1i?IAt1y
i63t1}factnr�.
t; `�#rtislil.,,ttar'r.
Hk C&S lvv,:greed ti ox tar d th.of rip I,lp, 'ills lcr1�111 �}t(rtl)ci €� c.Jtatrl}' i.3ci
[ltc 11,u1 , It inctl ru
tr1liv hu.dt`� rlble to l."l;vicc a prutL t ves Cxtc�.ight:rct,
saliiy lr='ratttlrrrs.
19, G detail las:,een pyovidA for the outlet Mmc-ove, The oirlet sfvttotunesho
rclv,dell
itba (rash grate 1(y prcvent clogqin�,,. W-n Feco u d that=.he Es
L-c sJ-jpod m.111 ilia. op(�nilkjj,'I:(. o�tjic
noi,
c appf.r.:.010 41w cp-ac"11m.A.V to w�-,Vk lbt- Plamm's:. ltk"jlv,l w-, i w; projvol ;410
fts niibrmal Iola 1i wffkamc !;-11 -i,,j -ioC-d,i -voxii-1 'V, p,,ck4,,0 f4i 1110-'( Vo,
tv"ild f-j Aw do ipp tivolven ty Ji-Cus- u1i,PliPci A "A V
V,
*r CO NT4)N I
tV�
COLANTONIOZ
ENGINEERS AND SCIENTISTS f
March 12, 1997
Ms. Kathleen Colwell
Planning Director
120 Main Street
North Andover, MA 01845
RE: Supplemental Engineering Review
Settlers Ridge
Residential Subdivision Definitive Plan
Dear Ms. Colwell:
In response to your request, Coler& Colantonio, Inc. has the reviewed plans last revised
7/13/96 and received by this office on 3/5/97, for conformance with the Planning Board's
Order of Conditions identified in the Conditional Approval. The Conditions of Approval
are listed on sheet 2 of the set. We have reviewed the plans for compliance with
Conditions b. and c. Based on our review it appears that the plans comply with all of the
conditions excepting b. ii. The slopes of the detention basin are identified as 2:1. The
reference cited specifies flatter side slopes depending upon the type of soil used, The
detail specifies on site soil but does not give the classification of the soil,
We appreciate the opportunity to assist the Planning Board on this project and hope that
this information is sufficient for your needs. If you have any questions please do not
hesitate to contact us.
Very truly yours,
COLER& COLANTONIO, INC.
,John C. Chessia;P.E.
xc Thomas D: Zahoruiko
Christiansen & Sergi
101 Accord Park Drive, Suite One 617-982-5400
Norwell, MA 02061-1685 Fax: 617-982-5490