Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
1927-1942 Reports of Committees
Reports of Committees Book 3 1927-1942 IDs: TC -12, PP 45 e. L �s syr -iy�3 9� C. G 3 � I � '4.t;A J wa„ t 9 �1O.� W&& �. v wtt 0,&, 7a 0 .1" I ■ ■ 14 15 j Q� � I a cwv u a Q � o nm NYL," q �L�ri � n YYl OJ4 1 `i a8 { U ow, ^115 a1 .. la, c ovprvvn�ic. 10� � z a" �tsQ. � .�.c. NM onr�a'�on_ jo .-Vv,�J-�.dt.� JAU .XnIIl. 04-11Cp,.C- Lt ctp C��� l .�.o-...j' o.,.,, wmcyl ave \ �u.µMow+ntQ.. oa- +o a AL Sp 500. 'U" ,,0� a +,:.«�a l�l� CIAdkA &- �-I 0' A4-4-Lv a &� a,,..& . �,,. , a,, ;.A SL OAAYYI� -t� � JLOUNAMtLp, AU cry nom, aAj (x, .N ,kx cL c tnn cQn�o-i dA a QAJ C evwAcQAA a ��y . �vw A, x\ Eco pwpo�v v L o�a .� aNa:Q wQ ke a o cY o e,.- Cv Vl l cu K k ✓A.cr- CMS .ah, ojNmau, t wccbU a.va.JC.a.ChC�. . -�� U n cut",). ...w CIA, &U� cI A � CrnW . nn � p�p �p pQ I �o a, �nana Ktxcxc, oiVIA A- 0a xA tmx Waal � o ..K.io W U mw lk/W all 1c�t� (��t,�oA.vi,,.t�l ..,�Cc�X�.a, �0,0 1CY,cnn9r�- .�. �,Ilu .,UWI.IC ^ - 1 m'OCL OXmJ- � 4t ;JA, C A'�vwnw�I.liR. �lnrOtA) a-ti)-t�. T of �Co �U , (� As, .,i.J toj �1 Ctxn..t.Qni";. l ..tL c�,aenn.-o;n. NSI a�,w..�.-,,ua�.�. .lo CI.4.nncwAAaT A4c Jvvuns.aazCL ICA* arr,wArvi � wll,. �,�, Au CAA � ZD, P t �� X_I..,a� 4�.,�u,� , CAa. � C� w;� �,ajl, -& ma t a w� a Ana ta J zoo I .� �, , O -P. � �o �- t `�'""�• 1�Yletco.q W us, o,JCO ,,,.l�& Ste, A .a. CoA&, 40L R au.m.:.4aMk 1000 a WavL � ! d j ov (I�) ,a (:;k Vff.px,�_km ,Allts.IA1 Jia"ol � L� ..lX,7laAsxnac- vo-Wh Om'runA)na �>,m anima .W O! tea. QAwA 01 ,L Ea-cu,a Uk--A11, .4 "+° Ara,,,— A– wa/,,, Wa.2J a,: Eal2L Aw e ir� p 11 1AA111 1 "' ny LI 4 L ..La per.. A� caw, .A.vo,A9oQ 16 171 44 A& "Yd-L O'n � ti yoo1�_w}'� t d1 ow .,tu a�, n o Gua fi o .� & A "k:, o ae�,� o� «u a w„�., o�4 .a, �rn ^^�%Q., wa.o, p� M^1LU% ujln& Aol ..1 , Js'eWY1 �Az - cL LST. a-vi`W Aa nn-�&Mpw Ion an. Al IV,,. Aat AcI u 8 ---r c�w dA-� AL �C" Gv, . �QUO�,%j��{ lU a CQ��t e. cw mm� I�.,A- &IA eond.A.a.w.)U o�mQ � �nA►&V .end. Gj CCC A Un-t, .ann,O-.t.a-e.. d"avmC& yRn% aM. 1 n L p p bU� Q i pa vwu �xs� n3m� any ✓� e�h o- rC i� �2� Yim,oxuW 5. Qn c,,,�o�R►oa> uo� OLLJ �O-4AAR.Oi l..W.�YaCA ti'1c� II e.0.1L4. Aon •-.0 �VUV,o .�.Y, aw tX�' v� . A 1.4, p�1 "tG.P,. m \\ Iq 301. 1I V A� a tt A p L1 4 n Jp Arm pA GNU '(1 awnaYA+� aA..L c cr ,�^ JLY L 7f &u-4l pO V Q L ev , p .X.Yn.I �. .�{. Ax c Lrmv-, .:�VA � 1 j .�Ao �C�, eo-wvrv�.�1u- .1tYn a� � a A t� V `v�ecAae�n6 - 7 *�C JNn, AL 04 wo-o rAA„N "" O Ak u, GcAan..�w S d-JIj ;4 cQ UyuucC o.w adal:,k4.,, Jro OwL ua� `I p '1po�1a�(Y�1 � p 1 Zy� aALayt ,vw -*L o.,,.x4,uvv, to.nS .`1 jT�wL�r-(LULL �uL J. �Me,yj�� ^�na/L� .X(��h ,� A..1 ac � JLQNVYi CAI.eT �,e.�YO'�'1 ha a�n 0 J. USc t,.e�n , amck �-ita.. C V lc. c�,acAac� ie� 13OVVV. a�pu. wJL �q, �w�a,�� �'lA1C/ � i�an�Cur.Yc,S�veoX OJA �(`na nvuu 5 vY Y a r� c� a � akin o � O �r _ 1 v� Ce r�a�lnA annex0 7CL cu„cil ,1YY� wua ,.1A, _Qj a lrt'.lo SAA, .Xowv� G.oU. G-C9nw.L Flo AA�Uc4, lJ l`�o-aMl. p4,0�" JrA.M11_ I aUM Oa'nCL JJVIU A-L0.gf.,.. G dLdaeta. a �+uOd,M �nognom� UUq.�;m-k. "I A,.M-. Wol;.�, eavia nuQ diah tvwt�z At ..W.,.�.4a.n,anS k WI -z1Anw ,ALQ Cv"fY*U" d,&;VV% •-t,UA &A 4 cn , lte AhbN .Ml CN 1JJW itlA�Ml7V.. U vu Qav1 a kl v . UAA�YLiuY, Mn, . �, A& +1PMl o� „yv Cavi JUa.i or, tL C46r Yi s .,G�n a» _u T Aj ✓ j ,vwC`.v6wu�rnMAA0l.La-."�VCho�i71 1��aALkLnxc�i.o-vv �an�, �ynvWn�aM.�_ . 11 rld AL� Jlnti1�p� d " -;L l CL �J e L211... L QXY. vt�. . sC.hoi, P �4'YY�,Y.;.A�J�• , J U A LCWIa. `on-CpWnJce�s(�ya1mo) arv,aCm^�lpae�ovS � �0L CU'NUAN �ia c� M I ,x �, ASS L s o� w i �an� � A, 0.& Q �d).. C1.�A.6•vtiJ pod.�ck 0.Qd.C,Q-aJrYaAn. , C6U AlLkW.AAR,, YYoduru i 1J. o Z �,�. t„, J. Cts , 0. Q NA'OAY,AJ �r � � - �,anromovw Q. o,lu�., C,. oJv�lo,�Aov} �vw�l� 19 J«4a�v +r�ol�6,n � cn lm.Q kk 1 LL p j G++& 4 0„ .,'v1u1.iJX�. uwu . 1 1- V L CmYyIA'V,.IYUA. �.�, .�� , 1A1 ,&j &V .,UUP. �,A-C' NY,J, wahi,'6I.A�JQ �GAM�%�^y. __ UU41 U� u JU1�O1..1 ..,AR N16 -W .A.UN��,(MA�- lc�• lwn , CQmavL.CMLdv� ry�+p✓�'l`t 0A --NM1.0 taA , .xV ,bh -N"01 .-CkA lk Aa cLi-o .� ..U.�. Cu ov,e:� eor�Vcl;mn. `� c.a4uau�uxw o(�ian 1Ieul pp � U cam kLaw �WA& MA, to , a&JJ .nAQ,,,o+o�tina�Jhuv . 10 oOU 1Uoo AatlW,kS4a,L AIwN&Ll Nu ,�e u-�OA,04 a ,, gin ,+ �, �, t ,�, „ Ao,�„A,CIA,QAJL,aQ, Irpl L�. p,11 n� J 1oA1Xµ+, -ow .aLj1 ,y.—L CVLJU +XMIYLI�6 0AA-1L, QAARAALCk WUQattJ'L.2G J'AAAMAA QA-,) 0 000 0 00 Aa Un4 84-1, G 0 U J)-)elokk 1LAvJ,M O lxYu. 14) etU ) TaAAAJAO ;."k JLC -Ml A,YYYyue-CaO_AApkAAAMtlt, A, 4 JAS R,vuato Wl VAJL �)aww J -t �n- 0-4 — 1 i W u ana., AL -) to atq dpi 10 1,4- s o ow ,Ai w QJAt, cu..(Q �A cOmaA� &A L .� 1 9 3 0 ..GAJ 13x& '� 0 �, 55-00 J OU AJ n �.4'njAALY1� OA4". `AA e)LA.Qa� . QAi O``a vppNA� tkm , `"l dAA3AA)-Wj l,W-Q+ A e.,A�c'l�pp L+ JCF t "& I, , .a.�,ixv Ao -u oL& cQ aw , Q "X t u IAiA)th LT Tan A,. ,cL A weso, o o o aor, W Ju , Q,,ci A. a&eAW . l ,, xLOQ rxl WyUJtA r G�40-W 1 cl 0 W ��k-k � 01) a5-,' , � aWd (3p w (LJ 1 ovn IVA J�lY1I C {}tA,�p �.uAdi ✓oioLP.i2, jO �AAl- �./VLCQ1shU -- CatA�/tL..l-.� O -AA J ..aJ.)-Q/ -(Yl AirLA,jll� J -M QrLC aaal :Ad- dh.c, .1�.lCUYYVYnA,vLd. QwN Ot SAV.. L 1 llu vvvv`n.LUJt, jo&JVw o-Uti .u.w.�-, CA J( tt W A.ev, el. '-�'OA-i^-L D� o�,�n.o-�¢„v,n.Cl�.4 � � � , 0 0 o Lacon, crit', �``ti npo o l o a a cr. a) JU �, .,o c� /a”L`�,c•CAJWa IWC OAA ( A 4 (,&.a .lA -1 -( , J)Ql -pj P1,>w-q„ Gunn, �oZ .LPnn. JYY .� U`K-Q1 �LIJ .AU,.Io �D{rt Y1.YL C-U4.yFn,_� Soo 00 o ,, en y�, }aC p�1n1 �°�' Jvv1 cntauQ c:� n�a� wce �,—V3 -,5-n .a�c.onaJ �QY,A.. 1. ^AA,SU9 0. cal.Q -{�N, V!! .,k�tt ` M WL AW%106-), �iv,cJlpf�a�A.al win VnoOv,+�.u�no✓"e�e .�^^�•- 5 0 0 o. � nw�utlY,po `L , 04 G'W','�iT., ✓loo e�L�„a �,t�; ova , ..1.�-�, .+..:�{,V vull C �yw�+r'�+-1, •w,t vrw.7f .,e.�, cel' j 20 1 Awl WA a' A> CA�AA.p,LGM w D jm.. a„.. .7uJl.a�...}l..rrvt,liA.l., o� a�, aAM avnd A..+ o OA., UfW 10,,, 11 �oo�ic.1 e,,)�d A,, �v,c.mut.on -L trly .z , 01� AR/ l.M/.n.CJL Colj, .)U- � Amts �°"`�Ja`il Jlanc� �a`a�o.J"- oaS�. owd �OiA7✓� 'A." AA. C -Yl A1l� UQriW(.�'1 aA. YV AAAAaR. wx"&AT nnTo +0, o 0 0, AA01 �ouX, At^� Vyt�tA�l 1 ,� -}^�-� O,.J�. (j .o fjy� elfpOv�G .�LaJt11� df��arv,, I•nn+'hArov „U d,L�.^C��•�. C dA. 11 �,MTiJlla .MUNI �f, Co,ly) 13LLaAjl LXX, ..pao.Qnn ,ANUAA�A\!-, An a�p A dp�pti"� .AA., �a.t.Ri �o �o.G• A� al�, w e�� LW �n U ,ntL� i P AW, auXtll `W, v1,.., NY, 0 — .Akx%. lAAi a } \ .� �AltnMivl C� O1.N- AA.UrvUA,ow ,}a .�l(L A(�mMu..� ^a�ULPM^� A� o,Ant AA>A �1.nn yAa� yo is .F�L�. a�.�; tJtMu, °1M C }Q-�u v] WY 1WVV1 A-^ of VV�7l/C..yun..J A.UkW o-� � A an V ( 0) 0 0 00 pa.�L.em .MA/VN U �'f'0`�16 � .fit. (� 00 .�� C�.OA,&. -�he�O�A�L�oAMp.e,eJ Jvw ta,+ `-�,A� Wtvu wta� A aAr u n UUa a�aQ w a , o a 0 (A - 19q4- fo A 3 3 a o o �!o 1 q j,? o M antuLotcas ww vt �a Q c o� �nm A a/w U O-IAfU �J p{AJ1/1 Qf�QA�,C. ' O.AAIY f.�1 eNT�' OJ ,/,.�{�AM/tNQ.{ �{J�� •�-M�`JI,(,pgL .. O'YYl X"uLkAka CViAAAA.o1 .a1.lA.ovt, ,AM wLaA.2,L L ejv .A} -j S ` 6 J. rl i e UA�. 4W . Ati o Tv, - (3, , Aun Aak.,.., AA AMJ , tai w JL*X�v. et .II hen �oa.\ Aa d(� "�11_�,. , o/.�N}.-dL� �,u. 8�a,�no�ntia�t.rwQ \1 11 1, .�.lA%.LL..1.L �aAR,``A� 0� 1ea�At Dn��4.111 wM. Q .�a91..n 1:u1�.QRc°n.,.il11 a�,..1c,k % .A�_ A�1 �� N s�AW AJ w �IAc�A. t" .M�uAa.� J� 1 v� tA.l9.. 4*X+AA$t MAW U.&A u ow I WA CL acQ v p�:Ijdtc OLrL No U.(7�. fipo + 1u� +U � aj4 w, cAn.,A.,.e� 8 L H-(. o o o Q..4) c a.� OA c,� Ao� j cr 10 nt1 ^ I� ( 9 a FC owr,owvt ,M� .1a �p �v 8, oaoau oMA p .D.o�^ JuWavw Ac�jJIr�C�a-1e dL . 14J A w p0.'' n; u wappnna�t�ll a t Urn a� an�n, j, w�Ae.`l�, eaA �m d -E- - W l 4� om A a tAnv U lA of JUv, cAy��aan JbAAAkU , { , o�c1l� ( ..Ii .�l .,kU % :,�-f1'l—ok O.,,N.1 .- I�1 An, jLtx(u9 1 . m .4�CC.1a.aQ 0'1 '$� `3^�{., o o a cL; AAAJ en. Cu V I , " 1 ti w%.% Aw1l loy%, 1 11 l%119 • WR, a. Gw , ,a cycy ., l� 4z;� L lo) 21 � ly an i 9 acin1s1 ti�.� ((�J �' l A w.a maw Twvw Ao amu. QMAA.&,Xa aw p{ � 4 d� U Q-A) -A w .A.Wvwr-7 U , A,- _�A,v„1,It.c�.oaAn� ON °) �1' ,1 ,www aaAA/vNAAL A . di A%A. p (� a w �,ai maw ma. may, a .. j� pi o,.wc a5 q , ().N,C�..A,v-� _JUI.IM.t,.4. .1�v.t�U �-4, a.1 U-,ro.A.u.a�rec. C�,I, -�,�,�,�..,,,�a�maia.., w•.�dl cQtA,�Qo�.,,V.,a,,,.1� p'� � `�'�.ne.� aW.JyaC�ANv�}: Ao.Are. A C,"Cr& JTAA� OAAAl u , 1 -� c.nw 1. t�aW .J.A/N`W.ILW'O�MC0.�nn_Flp..! QQ '�2w .,tAUA JL .n,�o a v J&L w wbat. (�'';,-'',,�c�n ^n,�,.,�kpp emus. ,�C j \ 6 tl�, � ✓YQII,i..ekk" - love cark- w .. c& � Q.+, q ,,Lmd SLAC �A�.lq�t(� w-^1. .�I1L �o•o.l�Ol... �M S.i.Ul�yv a.eMmq A.N EMIL T�oan dL Wal -UL aryl ck S aAAren 0- x bwu� . w/ L lac , e, *Q,0 a! cm vA of L av . C qaA „A� 1,a.a1. kkL ta.�a�Q,Q,A-A, NU 1 � S V A `t U&q ..Vw 1O L4, aVQ JlNVVLk oA ne+ Ao. xr �C ewwt w coocQ m� z Q lnxAc� cry At d .ANv+C-V �A ak Lta� r, 4 Ca„v� +Jw An dna. Jaeaw,m,.t c aA.,.avu, -�naa& jdkpu � /dA -"j[ j, 'i cojvu,.�Ck auA Aa, LA U O Aa, t-s1a , J> �J � .neo# ,,.a�1 a ,a�, vCt.A1l0� Jt,'lK CC41A�A" `A o.� ah Cf.. W,%(�( I tt e pp app¢ A� �tnw� a ej p w, -Yn Ln S. a� u� / YLt m q A+0 tL ppllcA M1. c� jtLc +A1 a�� "A� : o� oti nw c.�a.�Va �o can a.tA�- a�Q A --NA 0'1l U�nnv& �j- � .aXnow�QLk.� C 1 0� ,�dp.A,tnA„s ch 4 7to-h at1� E I�1 `+A,1t� 1w..1 A1n, 1 EE (� t�e�1�}UtrMc)� 401 �1L a{j, WMA at } OovAf"IA_. AJAOv AAA-) W -L OMLc.c �odx ou)Annq w Vv\.l;:a1w o'I 10u JU.�wwv�.Anntl(a�Aw.aw .1 1�-�1 �" -u'Mal tAaAon .I ann. ,,-�QA-Lv.epa�i.�.il l of Asov'�L\A .u1u..�1. o� Ar,..�� 4 Ls o' o o o .�LIw, - p<J . LL .. UAJ ,�1a�lPv� ONvl . W.0_ SIAC ayvvfyL m(j cxA �YIO �TMf` (r� Aiv- r:� C"M 10.- . l,pQ ,YY)atO� t, > Ltt U "Ck C- ��sRA ALL C3 Uo tsl )o A&Uo o.,j .t^/w A w s,,,.i,;�,,r� � �" * .4 -., a`.� 4 0,i,�,�L�1 1"N1�c 4? � L�tpa� , av Q" c:,j.ua}. .J - n aupax, �'+cvm ".A,ivw*' i -C, ,Ery. c.L, Jm J,n4. UXwe. to i akin.0,. av%.w am & A AM, lI At) wn ZL , 22 1 as y au7c . eAjAj &aA T") -m adly. A" _W .j' o1A �nr�nn U ate, �4 J� . Carry jodu At, <aa &j W ahry 'A dad �� c,:czx @ ar C AAi. a� .ut+. o,avt� , ,:v� .I.ia� ✓ (1 /�6w 4 ,A,. aA, a1v 4 a,0"t+O.bUvA�bai 77 Qr , owA uIwv,<:6 91L�a rvw, OU> anA r«Ja, a D �yi pp / WaMann�.ol � �a�.va'cA�.iaw Jl_o� �t�, .tu.cavwrnantiC�c�,.,aw O-Aii k otiu o { At awu H-113 mw. HV 4 o � ft 41 ✓Jo-� AnnA1ta� I aAAw . � W oun. O CP wwrvun� c�aa.aw AnJa - 0,eavrvrr�xR u� IrAAr n ^* a,:,cQ. cA �i � �v LAIC C4+euv�ICck ��A 'o .,oxn� e w a-. QCLR w,A,�, jAkt': :54 pp 0,&„ w�j nuJ�- u�$�COlwvvvlAn,�c1�. �«�- �nt„A�-Cwtn avv 0�-=F.Y.�A. J�.�CavnnrUn,oC. (�io,+5 6� I,1x,0 1 "�1 ,1N�-.AUA-k 0.o- CLL U .AMS .tL 1v. (�;.�.o�otU &,ti,^ C1/�nfJl j. 0 }.l�.x.C- \U.u..� a AlCvvU1,�n�(J UMI & �—l1, a�-- A"Q (6 a u 0(. .a.P, a.l�l 11JJ Ao \vtA� .J�1pp�.�fvV I .MCid1� -tMA. 30,t .,� attol_ }v1 a� WAW aA-) —XL iv�ALJAA anpDi alt1, . p 0 �-}- `� �1 9 0m 0-a» QtAkA. aw, .AA}C. -.�M J� d , A annkc, � Cavw.�n,�M�. . ,�-1 a 1 Q u `°h Qay\ov�, u 1 , \\N Wla,lN conn pp 'b �0A, lJ. V.AAnJ. a,L,,,a ,. .i.a'It M- w 4 a� L l arrvv � ave gan. OXA- & . to) , �1 . ate cru,a +u A� n waAA) +)e ,tk4aml JYYUJV- 'JA, 1.",L .M Di �Lstn.t, a. o •R..x�.t,.cJl. , Q,...�i CCCLI lnovn A, �o-ww � ` ow ,foQaRn�pre- -A kn AA A� e1 upO-uv o \A /o'wib e� \�Xm J"o) GM1 �n &LOJ U dl.�a�lin O ACIU Axarn. ,XL " C /patio amumno-LA.� oQ e . a - �o-�c� ,,rJZU .; — at p w�-irvurm01 "40,4 wed .t. + ��u n., �� .A.w ,—c JOL1V,— �tL axcav i d A,_ .1 ve. ecu a...w� o Z � Aurum au�n,a tw C►b� m CL ,ocel, a-�x ,mow e Jow. p�[ ((�� .nNv �(�')OJI,ULa. �''�l�FltJlnJ �m mien Qin .kW 7A, Ay j,, . 'Naw &w LA) L � o.L -LA" "cu At, ma.vvu a) � v, �aw 1 v an �nn ln}x+ w w ajv, o vr�atal A awA, or & aCcw�o-y�.�.� �An�,✓r�«,c� WVUA9, me AlaMor i. tol l ACUUA. cl , /via vv�t4V ucvj OVA aj0) A) -k Ct �Ut� .r�CL AkA j,o,,.+ au -UadL a C_Yw & t &L~Ai.aw owrrnow iA�( ww lAn w� caa ti. e�,ana &r ..�.w�, .� d,.;vi,. _fOAW O�DC7 avwww v� an� � ��; L c AA-,.,rr� � �V t4 a --Q � � a. �Jr\. +vo" q w C a-u�uu -to oj jm wo c.ta. C em^^ OANW." c� I - �n oV� o�-u C� po-w j �j w &vw JL. �,t�.c m wvKw 4 a1 )LtL o�A lawa-Yv n wK aj ✓J.eMr'-c� ,A/VU Wan,. 1 as AL.�✓l.O-gR«Mp�1. d,3. la'rvvrV�t�. f � , a Ail .,gy-�lrpp �.,lA°�� �, .m, r,-, C, Jy, a -a �t a.,.a:� L � n L"A cu jU„u,� _ 24 1 tt0,ou .nAcwn,wun ctaLaw. job vxj . y aaeary ..,��,,ppJ a,& ..t�,n, "-tL � omcu W .�an �.;a �. i o+� 01 a k. e c w- darn. Cppan Oa c�w^tR, OV cQa o `1 �,,, 10 . � W., l t&+, em&LWA.0.MOW i A, � 04A7 � �AM(�OJ � larvl. �LL�{ UUUUOIIUi �hA.�MI. (1NCNV1� �Plo G/1W ocR��L�-JA-Ojyt.�,q�gnN 0AK-a, { op ,.1.wxdL .,�Q w YY�.vw 1a 1 `c ft"J ec nw a .Ah - L . f 6,kj a .k, &C .m a�� IL _ � LLCnGUA U.tdot waw �o� AL� � r& i.J.,k A t"ct *. -,, a. a 1 d k, App W CG vw o� 0.. NYULkOQ 1pt4t& as juaAw ,.t,.i. �-haas�iwq �,uM �l, ce, c cQ LCna� wo„QcQ VnaXu � �Ce , ff 1 4� `vvrvrn..,lllc. Asn 0V� o An n � o-. u�n� • oI c r, o� � au a . Urnc�u, Qnk. 18 . U � .cam. 1 �a a�rCu� o aMe �vuronou«� JId Ckt nW alk wWLo+ otu�StoQ to wean, afnA .enUe}-,an,�, Avc e �(Vlvvn.r, 01 4 cin v, w or gin, worm 01 „vu,vc L& W Act l/f an an,.rl oma., a4 t 7 00. 0 JA aA+1+1,: at6_4 0i"OL aa,u.,AI & 10-L A..,.) hbaVd 11.E J 0.4AM 4+1+, JU an,.& ( la.ruAl, o1�Oa � k �;..�, A +o aA-aw �c�a, u�,lL�p Uma vu a� }o AA)-L , o,nna, \ ail W GA& #' .., "CL a14A r wf 4 25 '"W 4L �C JLa S S ./L� OAi CWOvt-:-[A„CL�l �0 0 � DA) p�nl �� 0-4)S �� �ri JVI I� J iAM E.XA.I(�UM 0. �CM� d J'rnOSr acLQ- SIX F� lJ/ x�A. O vM G Gbh OA p�u. ` Q1UW% �� JYY1 W CL' �N P -L' A -AJ . ��j�p�1� °� k4� U0 —w o a rr, a cru a 0 J CLW10-,. .AAAA CLr A ,w, LL&,v l o � w,,� 11- IL .il"o-wvC ..Am CIVA'I Avm eo-2� pp..aA..� -w o�Y.� Ga�✓w�a.W lyte.. Sw e, Wu cQn w nn eti a rw lfe A dv e �eY aua a.)" Sam 1�j j wu a InI � a 1 �1nL � n W SMA OJU �I cYI � G '7 ..& �JO AIV A nq US GU CQ J�1��0�60'vl UYh o}—AA+ p A0.�a �Cw��-U�C� pppUJY e,CL�-aF.A.G J1M. � iU-o, Jcs,OLLMq n'Uvux .AMS n 'Ma7ti� °t_ � qM^�1\,, �1v,e oM� Mil Wadi A. Jl,en , eop�! 1 a ion 1�,A YOU.. na�nf JkAi-A a LAIM y n l aeo�wvwtn� Ql awl o n e� emn� GjA-A u� 0 .11 date o� ,awe A QMtkt OA.MCtN�A W,o. Ucic,� Ltx�ca CA -V y s 01�� 9 8 0 0„ Anse, , a{ LAYL 1 8 %1 Ck4AI.4. ✓v� ACI J,„ ..tAt(L S i fa v„1yv innjlk OQAI J,QA,.,U� �Q AAA. . OJIC�LL0.. G10.NVv J1M JL ,S- p� 'L i 26 5 �o A e nAae v� 0- ��k: o-� a W ani or 4 ci �Q ✓U/rn0� �YoRnm, �u�,oMfi �dUMa �M%�4,V :vi-.A;Q� olA"�.A.� 0.� 5 J a, d,N b� JL mann 1,ED,a o.wv 0, auKA,� J � O�ChMAnJIW'.a�pj gA ala 4Aa.ffa�;nn Ippftnn�U�pxI 9 AACC JJ -Q. 'L „cuv n.laA.� rX rnm d .kM� (n 1 fop eAo�,Jjg Jue. ✓,-Leo Wpnx-df l � 1 .ppJ�1!l���Uppn 6 o n 6. U u>o�Jte Aa to �d L A a re l w I-X�u Q,�, A.,v At uvomriaLL A o -Q 1 au�v1 O�j Jr -CU AAJU .Jl,D-W aJUtia jl Jnso-cUJ s Q 4czt ea�ncw4 ..w ( vAo-�to e.aLw�.pff,p,1,,, tJCLu mak ac,. W abjn ,tLL+Ovn AL C�a�YaYev R � 1 o (k v t �Fnu �Ua�� ��o..& AL Cu,. j one -o, cLJ A ,&Xv " F o Are. ou \ lo. w t o dn.kl tkt 0..33. V -L .h o -Hi qva4' �o .N3-�w� �vun.� �i Jnn'ur , e U 1 n gyp 0-n) 0, -(��J p 1,,l A-,- An,(l �{n� \-��S aM4IX IL Jc ACr Q/ULW , q. U u W1L. �MJv� �o-h ✓YY Q0 I OA hj • � R=1�.V�"��1 Q OUB wm 27 sow . rJ 7., I " I �A4 Im a unn^ dUM JL . -a C.o�� Ax� az,-.l .A J s Jr a, imm A-,�a ii L4) ijua u -fix. A�a�) Cj i7w C n II 1 o.rn o.,wv. OA -v-&* as 10 w,. jyn ",X3 A� IAJ. OJVVVLUA Au "y �,{d�.o `U�'Wm, � u.u+xf 0.1 �a,a�.�re� ro co�- 1�rJ�, ✓Ivl,uAntiX� gyp) �/1-c(U� ,i r l o cl �-c�l C.� +o .ire o CAf dL c1 JA `Mo.ANvn aM. 5 28 29 "O� }o C-0 n 4 0�A � ©1 Ck-�I(�O L CL)�o.ti (��Q��Q� ePte.�� W OA.) �m DA�G.Q. ,�, L �1 C c7C CY� "o-u'�,i..WI __%ten-, T� t,u -\\' �G,A,,, �a„��n>1AM�x. � AL � o,> 1-0 kL ou 111 4Al ip AwV Nwl O�wua) s 1J \ o V� -S a" �onnMonn an ag �a1 0-t rf1� u a1nAI n. Ifa�Jti j 000,00 A avvi saX, M GY c1 e-w�n "u. Sd a U I d O Yjji Uk 111111 Q A'Idal O$�.56 rl s. a o \oxXn o c 7 to Lao, � G�cckn eo� �a nac 3 ti.Cab— � �p o v S �y54 o0 06 iii 30 1dL� 04MO �lq m'1, `1I"4!• C5Q`�)O 1I51 , ICia�'�F. .S`�(7.M,�K Va�c� IM C.Q.l v2 G� .�Aaw� lo' . Ma"1 �{ ✓dK-M a�}.. W . J anaM.d OA WMLLN��j"� 0. Oni-o,Ai afi .tt 1:LCM.Qa�pA-�wirl.a���nauC�, ''-(C_.pKMa S uA aMCY Soe� Sknu �wvwnm Xy J�n1 f� a1� " 4L vA �l Lkl, A,IICA 4 , C. 1 d,. ��..Mnon.aa)AU �uMns�Qi�',e�, wU �R. JwaM) Q.tis-�• -F-c, .1 cvti, �c�Cfn.ZLA .aAL�—�, �oanU �-4W G a -�,..,, Wu.an�, q �'1 , p19 a CI ✓v�psies tr ✓ Tr^tiy�I NASaa �(�a X OAAA, �ati Yea �aaW AH SyG�O�oM dpi^-� a vtio w 1 "'La, PUl�uu) lNH 01 �ctlo�we.a �j.orn two cs-uT�} .tet , ovotu�.ehn� p1 jLmaM oh t . Ste\\ i- S �j ' om cV own o� •-eni Xi ate„ h�J c� a) a av t mnrn7C Ta oat CL�� 111zjr a.j , Ojuc n\� a. S Aj5 �JJY) ZA- a.a teto� Aj . lA. ,.l).tu)✓vtAAA) Wuay sw C�dl J� nItL owv�owv�� +j c,.rn e idCa� rUI ,l°ct� ym� JjAC/lW .�1I.mMSM �jn� cam ct d OvA AA�CL CO�LSr i Oa )J _sCrJa ajL9 O.A) • E31 a � ` L � j)t4u�w-e 1 Cm�ar a iev cL ✓ A�mn �mo-kw of up uvc� �x �orrmw� ��{j cw� c1 •�.tmgau�nuwi Jtpccovwrnf.rna � 4�LVh j" O.m�n In Ol\\A A .Arn6..c`.c, w po.nn e�r.� � C14, �A..1 a, Q CYIA.FU CLQ e1 TM m 1 °� OLW 9WQA-) ^G&'d.—" CMN 1 , .uv+'�.�v_�eJ-e) o.N�, Inc)U .,&I�J(�� n �. tR .�XN., , CaAJ '0 KJ � r� Crn� o .cXf i d�S C& c i e vn C +0 Mrs aL l JLC, WUA � , ovh� , .Au CJ- ..lay .,r, a .XArVVy,,.c cX.,: owl.. MAanN.A�a-) OJ,xw (Y,- CY .mow ..CWS- .nYA. t ..w,(� mak .�-a�.Cn .ai- � � Yl o�v�l/� 1 \ �G� •o o-u�7in °�, S c �,� 4µ � alt .,9Nvi CRS LxL O;�' M) 'm Ia1 tat A— o� .�tXne. , , .� n o 1 n gni.(n� cX� c ti Q data utid o o nnj am° � Ojyvo-w o w ` 'n «A flu a%on a cavi VV�Lp �.Wj W, -L D) -1—(s 'ju w.cX.�n,�ti aX or -talon. C7rs � 4 cX J.,T A,, ✓m At. JjaxA�-1 ^^^^^^.. aI4�X11^ I �� OA_ 11W.: OJ2A j�✓m o-�u.. J/J3 M% v n�r¢..(p*J^', wv, Ju .,,_u c�,N✓1 ,1 ' 1l L-tw ..I.UJ,��..nn�-ffXoi ACLL A l�nU.,C>L,m C� (1�1�(1�1 1R cy�..�A1_) A OA AA�,{,�t',�1�A� J 5 .)-M i tn� �9nn " OJLX C]. J Akj 9J 0.G 6 Ct�1 C' �a t u SAM �' FUS 0) .&A --n av-k. s O ru a... t,capA�a o,. ap •.a�o�1.v ```-�Y' J' 10^ U N� afk (n 1 p j QA) 1.�auwtiaJ ann c� CJ somli lAVUL CaX�-a-.,,�,.oljzrLkzx maul 1A ..tV� a ./�;A),. v ".. Jlsaid<\neAia� qnz aw •M)cA owl t 1, yr onz C V 0J. LIY1L tL .UCLA,u.olCirri mead ansi a,aJ o a A aL } V pp p n 0 ; cX AOAArv, 1 I lCW �Onu }o� oma. {� .n.�waT.:ovl 1� ` 1 32 1 i iv� - - anvu �cXr.�v�"s �"o ,amu � � arwv. q � �utiJ "gra-u. ✓vh o�o�-� i-��' a� �JYY1 dl. O�MIAN�IN.MAnn�l-Spp�10.q 'J1O�effV -. JAJ-1 ✓V . 1. �OMMI OJ �coj~ O�m. wI � sem„ UU r-Y8�1 -�� . 33 r 34 AL < A, S CN�o VCMIAAJ� o� o -n wo•4J �-ej 150• c ().J ,,Waal JL A1,�t&x w� �cru�'v� -.�,uo�.�' �I � o.- �Xr 3 cu ann. 0 nano n�o tannau4 a.N tn -M WOIAJ J-�Cp-b-LIA AQP o -t, w, ^ 1 ✓m oMM R.� p.M�! At .AM tem 19 '� q l u U `,u a�J Om inn cn -OA Q� `1 5 .Nw o-i-�A-- s Wu) . Ltiwo 1 r15 �9�.u>> " , 0- AM '�o s o-a-� AM - urn a�^A o 1913 �(t1��1-� nn� •1�a���1� O hL-kwe 1 I �p w k, A.L . mkt o n 1 Iw o ym q� cVtu � co-w(,� CkL 4 �r� +AaJ car jl o- 1k -k aJ OAJ QV IAAh �A � C �A CX ^aaal� o ewe J � a oJCLO-., A � ^ ,tee w,c�J,_+o o y+ }o c l,;v, of , p Lu ov rauDl XL cLo trm . OJ`„ Q�, -,kL 2 o ", 0� `ieY, ./(X1.1-. +O � o ACA �UA .Mo# OLLUU -+e cr dl,kt 1p_. \m� a A A,� ✓L ✓v�u,�, Co LaAn. tOtl'o-A '-ATL QLOY Qxs 1 , .JVY� <Z'�vw.� i 9 3 l . or\ ✓.vw� d� oA^1M mM � S^LG�"�Mk,a7C- ,I YM qUA �o �o W � AAJX /4345 g3oJomd <�e ,ok3\, XXux J-4 Al�--JNCyl L`�` j `pian( ,y wnQ eta no1..rn a rA � re* ^7 Gam. Q�'L- � o-cA f ov n� �o 19l 3G 4o .nOJla- _a o 4-4o-4 o� aAOL+o JJ,o-v� .}-e `k�✓-�.:o-w o...,.cQ V "-� -A 3A Ml WM CA 3 Mi U0. 0.R A �/�{ CYIR l �5 0 Io -um D , d'�AAA+ ..W .." d w Sa P7�� ,NVQ. �JtrurVl �AT�A �N1 0. C� U/H 41-0 IJ J.Un CAYu1 ab L Ljc -ep v, � CIL voo-�- Lo1 T -M1 a� p�CJtp V Ovy�(Q 'fy o� O-GVNA�Jlotij p -f d msw ..o S La. eW�� p, -{�-}W JA o DO.aJ .AM &AJ�Jlk. 4j w.Q. al—G, AML ✓lA-ce-mxwnn U aA.�.c,,,,a� 1 � �-7 can'vv�f.11. c�J+w�.�M q n�-Af-oon �.,J , antic�L unr-f_ Cw�cJl .,.a.QOo-,-, ,,�pA,�M,A. C�a.t/!� O..* --�oM,v, 10�1�✓�-�'1 . ' tea. W QnJ . ae .)o al 35 36 �L1 U, 1� ✓�RLl lXo e OI�A.C�n (�{� ..1.�1. J1 CWS -o`¢ Q' r -�- 0 ted( v..kopt .tL a.a� U• �., .kL ,nj ,.cis 4a`-� a��.yy�.�. -18-1 JL U HMS 0 n Q W OVIA xL MR c v o_t � p (�c�ncnaw�cXLe^n aNe_r.Y ,noa� �� ocQ o eaea aA�4,(JL-C& � vti air S +Mww M.�d eww,�.c�.�c,M o�•�. AA ANA 0"%QV�OIL, G� WV4A� :JL c4^w^& ✓�^M�L. � PN, okJ a L env A �u 11 �� 1nn111 _ �Q 1 a& n yL ujiw L / Wv .1YY,0lG'j�D� � UPCQ� �iCY.M (� M V� �O✓+V� C��� L �w�'^C Wim- �'^aie� o✓uoX� SCY+o-�� �.Ann.�i,� 1 JCW� ��p LL C �L�Y c�I�Ann C_amA.nJ .J..uAA-1 � 'tel o�ot c*n 41 0 nod '- �i W WH O JVyI a @T✓1 S cx� 0. CA 10 r-At43.v, �l C5 -J L CkrVIA -W-� t:ML&++ o C CqA 'D' O n 0^1 uoid JY1 u v Cr. CUAA-L GU v), s WAS. U mow, U Aj.A 6114) +0 rn NI 0',.� 4AI3 37 S " � t` -&/Vl AUS.. �," ov a/ , A� J1 LQA o " ca ds 13L nnllJ tai }, � e i U.-AC1 QAO, CMnA. � OA, V./rwwu,o�n: eav`aa-: td.AnO-�1 �a-r, �a ...do -T. a.a) A. V ` ' j,.� own AA) n o i Q.A j�cCA V VtRIN A CUL oM a nn 1� 14L A� (ntom✓ �6L UCywY dV N q ow CY '4 jn o�,.1�X 1 aM crou" p� 0;,440, avm,oST �o . dJal luA 1M1tLovna� &C nm+�vr+�� uivi �1�I�tn�Vl U, �A Q ea, mw,.1 vv, wu� lu ` 1 a2 cw -A k l O OwM � ��. �aM�� ;a � L4A0 ..U� Ct n n n 3 .11 ' �1 `-�`ou qui .Ml�}an, � 1n' �4 C11`�ti �.wo..c� �L� wck" 0� �ML7p , n...11 ..W/a JIA"O L 9MWtc� ,ao � oLI AL•.1 VtaA. 0. V o� ' 1wn ol-o�, ,nrs.C�.j�� LLw J w�.+ Are, ai(QJJ Qx, a1- .am +0 1 C3a"�mtrYV4J. Q a4„ Jr, J'A �'pJ � o ^ p 1� } cR.ilD.�➢Moy.{n�� - 11R.. .J d •fix( lwv C1L .. J.M a. l ajj� `a ./vJ�UAf(� n L"(�/M jM-�CM_� • �Y� �'1[ 1 � L � ❑ C)"d �M'�j� MrU '.^J/tDK-iv CJ O -WA P 4 �-W�.I.VLi.r �'�U �4A�Y- d �'1VGd _NQJ.M O1A� O n J W` vi� , ..Oo CrJL ana�11..1V.>2 cnaM Jim, )tin&cJL� L.1J.r/1�SLO.�AJ�1J�j aMIJ� GAL �(� b UVyy l o�c� - t" +o owo, eo j 35 nol:L, .y1oams nA i anx✓Y%io tl'anM sCW� Xx.�Yd(.Unq..-X n 1' a 0 \ 1 1 Q L+ .XO-Gv aesml.a� a @o,v� kiA a O31C[ AMM `RA GM a'VI j��J �� � � � �� yp�� � 0 1n� VVV 'A) q i0-.l'V'•L , -11.+� toly) u`--�h MAUR CiJ /µN"`e+ A � � A� CGfU- �{C � ..U.o) A kiaw Lwjo-n-, 1:1 ...�mULlMv nn �CanA +wL„� o «ouOU, 'L jw�ct�j e), ok Ao A4Aa- ck2-OJiR, 0'Yl JL 4CWS,. At aAl- OAO.A ODM r} .L"JAt yalK.a.A W}ll� QxA.a-�dA1LVA. 0�1 0.0 ,Ji od'VY1 O�nn.C�l p71� V AumrtL A 1 jaw.L", CO` QM J4 TyuA ) �=t o u.Y A- n-�+19- �` �.N av, „tnOIXaLuv, ; -ta 17 (� AAM Wij XU po XL Caxa�w.Ci..ov'�I� S o U', a �., 1-`^u1..^�P,1,v, of .�,f(1, o..(A��- IV1� CX ,ao�� C Q'odw� o,uj_ rkm . dD' cx�,o- � Im 1 V,, -Q, \\• 1�0 'w AO rOJL4, +O Y'� CLVA, • U lN'.� oth 5 &Yp"4 l{�d• o.jAo �n.Yo� � m! j eo s �' ai' �i1- Q -az l .-L Z- -w� C.�l OLA, oa� 40 .IAM }n -'to �,.,�i�.v. L OtA I1�I 7/w; o a �l �. mLl 39 40 1 j 1 1 41 Nyk.k. �U aodLS ,j .n o�oy_ ✓Mx. +AAIA.�`X�go1J ���c..v.�L W-+5c� pp�AA. '`"o-wH w�. ✓ % Jup0 5 aM ,yam WDo-od � Mni C.L�luunmw.� �O,v .� 0nQ.CLQ xdl W�va�ry )AA. l�anci((II AACOAn -sue. tL s "aw 4 �gAaNn O'1 Uvn wC1 OKUA W 1 I61 \(h W Ob (X } 0 S � .MiM 1y Q/n `-T o-✓'�� _ p {U, v�&-LL O.Xn CLCuj LA ec ��A/.s` �Ml �1V O +aljh t ak�u""1�.,��+o 1����,�n JO.&�,, 1or�,,,,. A o.�„j IIU, w60 N-3 V1 �(�(7 "& �QM CLOe. Q%n* jo-w1,U jN, oyt%...YV�-1)1 0 W.L AAn�, .9- (L� 'I�MO,..C�Ap, .,,Y, �w,. W O'a W✓ NU1M, �O • n. o�� ,n OLcj�-Yw,y✓.I.iq'tiTppW�'6.�.,➢v1c�' i,nM Q �-v,ou q. UAArm L �Ch ✓ay1�o M Rv CO'Vv19.. 1 6 UU ( W�1�, ODM �xKnaM OoV-(� `Q%am�,w�Gt o -v1 [� n ,� ('1✓vn O�M1 Acln.�� pua, �,�1 � o tel. `a-rwr��ian wn.�d( •�^.x. �o.H.,prv,.�u. _ UU,�.UI:�a.�w� �,�r .Ares, �.-t-6-w�, an,..cQ w ov C!-�i«�,� CY oti,A ..tJklt. w:�,�— a,v�c4 -�r, 9, A �ooa �cAd�ro 14 I�b ouon o. ,Nva cl j &U -L, .,vvu.-�.ovv1 � � cri.rv� Ui � .4�.M ��'+'1 •ivy a uo+'w.i C.tw oh ..ux1L� amu Swk O-V� v�,o o vw+. u . Kira , whdl ca�a,.,a IMI tl N� Q,A" tACk,, mom ft,:0,j w�A V ttl )µ � l0 I 1 9 3o. ril�� sl;�-. — ` j L co -a, oQ ..�,�. o.� L',yo.w fro (� Powa, djxtt,, }}m& �an� Unv.v,.K-1n,��Q0 aQ-OI^1X MAw; e.�r1,� OU Uto � Y«M n On..� ,V,y� G a .A,v, �.).1�t1.,v� �-O'�1 p.� MAI.Q�. p1 � .w�.,4T�, �✓i ." `✓ W V Wa) Q.Q� C..�1 QAnNw o./..,) U uVL [XnQNwh 0� .i.wY,OA.L +o �,.. .�.L� W. Oye, 14� . IJ „i g2Vp4.U, 1 �111YTUAMmnili. Oj `�we- 1 �RRd. p�, jay, sua- ! � 1 ev1 � .na eavw.ruMt� a�e a., .ano -xt„� ,rvn aaAuv o,� q .�5,�1 ork: rv1 f�nn O'w'l W J6t_()Y�,�) .J.M ✓��Y�.0 1t�:1.n 0��+, a J111 C41M�)1. � ' ypa` wl,W s �a�4A 4 e�' w.1�, �%� � � 'n1 C.bwUNW.IMe. �h.A,{�Xa{ - Q•%F..D' Q. ^V.�p,�A.Ui- �y'oYr, o X1111 .e�.,y�-. ��jO,�naAnnlo.O.:1o'Y� anL �,i (�1QmdG{MG tx1lo `� O�1u AxcO-mr I \�Tvw �c1nY'•', Jy.►, �hOpu��C�o w�- pµ 011.M}1AI uw Y , A. '1c/1'.. .� , �,a.W,L Wv, dl �^ML,n ./11.cawwvU„n� QM>n, 11� 1 1 c o� Cv�w,a cdu, a . cv1 J `-41 � ,.SULCm.wrvU/v. O.A.. ov. � 11n,�M�wm,`�.. p 1 n 1 . c�.e`1 .wV q y -A o a.. W .+w. 411 CA i a •-4 ZJAA a* �U 0 J 0 a . au Aon LA- AA- l o uOL � Qx�"� � � A . la ) 04wML14) _ ,yv1 o UJOJL Y O..v laoav1 0.01 A enn. Ic onn.o.mtl- A., cLu 40 A�L At .ao. � G i a A. " -NRS U �/y 14-1 Ali ca mAd Wu n 1e a E 1 W00iQ aN as -^'n o.y o+ y A o cr Lim +0-urv� �lnio�X cQGOL ) �k .�� �a� � _ � LCA -i1 q +v" ,la kuAj10 .�,...1 i111A" u� y , Cura.``AUOXwJlgo aRwtoj q o ay"jOLI o A �n �A Y a l'34 04J Lac (: .M Y Ic JYvt wm uj� A� d G JdAU- I Wk W, .�lA� %m a O. `+Q ,.� YualATylph.y & (W` OrLoQ`N u-J30jM m .AA^S, n VM` .�M 1170-� uwn omamouai UUU " A �akm N_o-nn.m.�u. AoA Atac ✓lA.cewvnfntiaa�-mw gym° F �anA1,.a.Yn (cMjhwvO4 ✓V Irv, CA Ci 30 Dil. . Wim. . tarvww , to A a,Aj .LLs� a �a ciJ :e tAtJA to � 4o Cam ✓I-0-4M+� � � dl4na�am cXqA a,+ ao& �) J Mn 0� • I al.a> ✓tS.�,lc�6 cr, ,ja. ash 4 &AA A a -L*f" A j���� o � .�., �OAAA4-, L�trYYUY`n bW.A)J.,NA AA Oww. is.51 m. V Lt Do tAaT aMAl-�) 51 5 ` D L D 1 . A �,, a.,k.p` �nau� %ktj ei,, Ok&) -JL.9- CAAAJr.I,,� wjnp.n. CU)1 +a A.L ,naRL, n � �a.y a �o ,-h a1-virX1 .�rwy ✓1�.,� "��pa -�%v, �'uro CC Cti K^VJJA. ,�yyl y A OL&) Qo.a� Q A�& O v . L�p� "o-vca. A.-,, ✓V4t0�^1h' .# 0, -Vv � '�M I%OkL Ai'm C¢C5��AColl '-h ad Lv, O X a. alk D �1 �, `��an. s o C) O� 1n1 1—O ..t:.v Q4� .�Y, Q.l,.,v.� WSW, ,�H.U3M .M1 VU C -G, �a oA Ckrn 5 0 -fox., o. aA� MILj o o V owcQ - Q.obt�f-r."� p�nO in s- kx:Y O 1 .11 ONC, '4q alMAn�%p V, V4YKq.Q,1 IIIAA- .n L1. a.V' J.1"A- V P- rO n IA, o� a .ma av�(V\ oJIY an of . 44 Jyj.;t-L aaA�-L"C.9nux �la L C" oX xL ..w) U �kCL44tr� emmr,(1�n)ar, \\1-Aax �.n,� `-K a,A um, irna wt1Q '^�'.�e .�Mca, ' eo. 1 oh, U-410 T p (4 lli r- LL� y p� elm ,V1 Vi IAA. aJ y\_ ,. u, AA. -en - ✓ VJAA . V AA) ZA 7�,, I�h cAmQ1LotA/V L.w. av-t Q4 oMc( -,aAM Co. w ckr w�QMAA}� � .A�ln QAMA�Ii � .-F�u_ .�o�Jl,)-or^cQn }D� a, ul o� jw� •nom �aumv.H,� �J�u WnaaJ^- �6rn qD.A,.uA.� •p�- . C/Cs�/-�JgµjL�1^y1aJ�-�o,,(�,n ,1{s -o .�f, o�i^y, ^�-W2 ✓UC corv,�.j1{r/1ruH,.tl( .7�,a�- •%�, a u�a QV�a`��-'( �,-`�`�1 Q,�„�X a.M', � �' V..�\ W� vLi��A�„A,Y • S_,;N C.,I. �s.tasecY S oA�Aa� O.rh cX �JCtQ- �Cl.a� (-}tn,� Y .anitXY, a:. i os;,V, dl o r c o+v) c�c=1 clo �m �Lw+n.an� em ZIA,�,Vlju" s aIour. 30'7. an 4wol.�wui, cr,� o UJL ((gym-.vau�.i„pn�U (akin aM1�i osw.n�c� e s�'oh wvl -6 r Clu-, ` Y V Ci JV .Ay, \, nloAt d 47"A 0 ftA-QLN cUAAA �IL.�.,�(:.e. .d.ut, n. .. ,:011 U a,� 1." � -..A, a4 At-. CCL L �,` � r�,� �ONMY% Ntin�� eak� A�c Auxn p�� (N Qol SAM -CC1tAJRMp l 0 Wp4.o eaw a �J'�L. 1t CJ QLtO- i � G Wi o o�+�n.� 1Mr% Ju.m V awl,, O� OLUAL 45 a_ A z-D,,:o .,�, oft .�.�.� XA.6k 00A e. -O t 1 ./, &&J+� w4v. �. Q�A4,(wj -AJO ` J4 C AAA (� 00�jJ, �(� `7pla O�f�l/v� uu VV nn 1 p jj p W o.4, ak ..o..h�o %n A o ,.A .-w� 1Oj Q1 L R do°,ry 4LA. R w ouQ� a RA vn i o ua� j rWA �a rLAL ruu t( J. O JoIi a- fin. GC,"C y.aA lhO�w�UouaX aQ e,n�.sQ wnno .m,wu- AV`XA t a, MJUAk.-OAAA- aAMA CLA .o��Q VLA- cam-, 1� O� m .wwref..DYAAA Aon--) a. �c» �mna.. �o Cs CL odd Rn Ot i 104 ony� ,�vv,sT.YA o4' +a.,rwa.i onr� q,�..u,n,..cY ,mss-. QPOAO..la.+ ✓� Q.e-hn.� .s.c i,�-e o h tL kA.) Ju 4 �jcair w.o� . , Oa „4 LtAA Aa. ' (n� s c a o�Q C� M, a� a �o q 0, av vtl A cb�ww A uV X t cn, r� 0UM c) d a rjL� e cL j w 1 Wt-c*r, on ..ml o�u , (1 oA1 G�:ti, ennn ewe �n �aAcQ � o ✓IAMn a,.,y.,� O0� Cn t a An D� (�-L tL ���y M�,v `Ani a o i4 n ^ (� L& V WN I aI PA � p, �o1M .XI)Jzu To � . `^�CXn C n a4 T L& �1� 02, A, 3,Loo� �V. 5. dL &t -e j .n.,o43 .SVtR-�A Www, yM a, &&Au �a,., t4A3M.OICL . , Ro Ljj XV i CA /Uri-G,o.,,,r.. ..1.:,,u�.cQ SIM=•.C. �.v.�.�O�A 7 , V k ,1 Vit Z�e �y O V�jM�; 0.�.Mlq M q uU U a -q wy00a, U�r�' 1e q JLv. o qa�_, f�..,.l,✓�n1 a 4 V- Jn " Om& AA -CAA G, 04" ✓XAA C-XOJKj UA �O . .11 111 oOnI 01 �q�k3� � � .� 0JC ko, +o OXO' 13noq O,M'l.J, S �1 1 R.M-o,., •�,la `�L Apn oy� `�,�.1 �(� QOO 1 oN10.^1+ 0-L�r ` ,kL /SAIIAN.iA, ca{ e° 0"W,-,�nnyy,,,�j ��,�/ uln Onpl." WI`'h0 ks�.�.i rZB ono O� KLCX O�{,iQy A .IL 4J .nx�(%�A,r,� , u IL X(::`--17 (1.1 Jam.rv, N�) , 4.&, ``�u1t.f CY �w,� tj 3 Outa.Yy �f niv�n�N °� V V `u t,, 4�0o kttnj nor �Lm - E� c� 401 0�1 °.`AAQJQ�L4 ck Alo bun CQ o �S O A OS .. A 0& lo.kkcL- wr n Nwn,+ Flo„ l 4 til �l+,oa�a Akz^ .�, ,colada � GILI akAx IAL �ca1,.� R.�L.wp�.av�w,,M•�•C�a�rmia.�, 0cnn� CdLc Own (�� O� 10,4; J of L d A «x �4cauaa 01 On., qua �m .�r zl .l�O W -U ln/ aM JJm ow.a4 jea .amu. OL&. r4 �,� � � Qu� 0. Qh ..1M.� Ov'rY1 OA.I Cvl �wAfl AM � �N Q ak- 1 6� �uo �lisAau. �oLo ~LMMQP. �k u �M�le� AL U�c..Y.1:.o oic. 4r 0 - -Yala t ,moi �1�. es,� 1 5-, , 9 a1 . C1.,�.�„�c9 �.Q.,�-. PDD•, oN,c� a�b�,�1 .�,.�,e,..w, i � , �5 a� a.tA cQo�. lvhJJA L .n v, wuw w�eo1 M ✓v%4� �,�U2 �-RA-�nd.A„nC� �., m.v,0p ✓1JWwNU.n q �- OA o 47 I �1 QA IJ.a ylna�" � �kk Am� ko � A, NAA > m Ike, �� ,,,wenn. oXrw•.�mna� anca. .k�u.�ovsv, o..o_, o., ,.oz� �cI- o\, IU4.) w 5 (SL di /�— ,� 50 1 0 1 51 �OWV! FF 52 53 �=E��+�l.-moo-�'�2s��ReZ � / —�.o.�--'7z-f�F.�'ti• G' 54 1 I I 55 0�. 56 ■ 57 9 l< :��. 0 59 :OZ S1 ■ 61 OWN 62 ■ 63 u 65 11 ■ � c �J � v�C� 7, y� 66 1 67 68 �,-ri�.R-- 69 72 Fol v i Rol I / iii 9 it /"/ 76 1 V22�G� 77 7F (�-,, ,,e'55�7 , �. Gy�C�2.2Q2s-cam E� �� 79 82 1 1 I 1 83 /, I GDD•D0 i o D. Da %DD, DO 7O ✓ADD. O D D O D , GiD O 7�-D DD O %DO.OD 84 85 0'L 00. 00 0'10 O• o O ` (o��mw& 7041. DD 0 0 0.00 a 7 dD: /00 00 �jiv0- �'(j��Li<-ea�/ .200 -DO o20 D-00 c2 d0, OO /�(/iU�L ���2��Ll�.p/a l �L��`r��(`/�`���` / 02 mil• O D / 9 D D �iS O D % Od i[-pirzdacd a�s��DD.��L ✓,� azo �as���i�iv a�e� 00. 0 O eo OD. e (p D O -D O — eta a. Do ,2410-d0 020 a. OO 0'Z 8.50.00 a2,2• DO /e=DO ,A3. ad Dd /oD-DD 00 /• oe /e� pD / pD mi .ff „2�22w�i �,�r��� 1 3s • D o 3p o o JVD -D o ? D o /..S�DQ 00 3OD-a c�0e.D0 3544141 /do cv-0, 0e 00 42 00 01 D. D 0 ado /6do — ad /a ad — �����,�� 1, / 86 1 1 1 1 87 I t�l�?it v�GOO.DU PGD. d D DOD• DD �(JO.Od / ��i�fi/Y`,''r/ir��.�y6Q2 _ 3�D•Oa / Do .�r�o-a�fi ////lo�� �9D D ,ga. dD Sto.do .2Do Ca/. �P DO F/- /�ZGg�% ��'[iC�ifiC7 �_��i5!!�G*f/ �/ . Dd , y- D D eZS•' p e /p ,soPao Dd �2s-D D p�N�aa���ewJ �O-Dd aD• DD 17. e7li c���!G�ii/�r�� /P•DD l /,�GieeeG`�rvri��.-C�(D&�-dl��th��/' /�.�/� c�G•Oo i aaD. D a • /c d o /SOD -O 0 old-Dd /add J'da•DD /cF DD �DPdDo /0D4-" 30 ed / DD e2.rDd / 40 •i�d Do 1•GD oZcs:aD iDD /�d0 DD //D•e2 /DD 5/�tf�G�f-GiL�i - G ODG/2�G m e5O a v /S'Dao o /G P"O. Od G OOD /..?-dD• Do /3,3D,00 /S7o.pD G6.D0 9Da• Ud a.00 /a dead Go.dD e -Da />LGD'Da /seJeD•4D Gaoa /6r-o•va /6.aCie dI /zDD.DD Geao / oda.DO /a B6, 60 /OaOo.DO GD -DD �-� OO 02/DD X9-00 /DD /D- ee /.O0 ao cpo. 00 p moo e2/�-v6 / 00 o DD (�'�°���2:e��,.<1z�G,t�x� .1 o O ° a ��u�6 J'/ L7i✓L�CCi ooe i Do /oo. oD I OF 'p- '4- o: o o / 7D u- a p /0o - 0 0 ! " 9.r6• DO - ! 706. a p zea. 64 7D 0.ap C 7eoa-a64 Zoe. OD ii � 7So•p0 > 7e0.o67 /ao 00 3 � l�OD• do < 700.00 >po-Oa /a2 SU, AP l7oo -p p >a0 -Do � /3u o-oD /loo -Do /oD.oe c� "' >r9S4•UO >7 ad. Da c� ' /j�00 a0 > 9DD00 /Z of /7DD-D6 /aD-DD //J'UO.DO /7eOeD la401.6D /,2 "� /JD O, OD / �00•e 0 /ee• Oe > /"a.00`���� /70400 /04.00 o'LG ��aDO. OO �� S�De.Op ya /4a -OO !,irrYrL�G- /a so- o o ! 9DD. DD /Doo D / ' ! iso. o o /9ov-e a !Deo 0 / /.roe- do >pDD.Do /DO DD / l7s - DD / gad DD /4v 4e / /�DDpD /9.Oo-DD /oD-oA G " ! 9Do.oD / /9ovao /oe.DD / "' �UOU.Ua/CLe�QalladD. a a a a, o 0 �J ao UO -2,5aa. oo as oo.Dd /od.ou / /Gee; Dd .2D 04-0 /Davp / 904, 4D a o 44.0 D /40 44 ,d " 02DOD, so � deed 4&eo y �Z/Dig,ke ( �D4d,od /DO.OD M i C::;r tee_ 01 91 U�Gj/���Q�iii�✓G;��s�rc �� =�-c� ��ir-�i� � — i%?� � �����G�T-� �c tiG<-C�� � �i�irir � fzl�✓J� ��i�L� ' ��.iGl j����o�li � �o2DDo-Do s�'adeD•oo ioi.eo Gs����,��/9-'�,e_�P�r�� o2 �o2oZso D O aZo240-DO /s!/. oD :S 1p�/%�jf _G �,G�/fiG1ii��ti� ` / %" ��DO. OD 5�g40- DO /Gf>• eD , �!i`j j�u�G�t^� �.�v�gcil��LQ� ���z%tGZCP�� 92 1 W 94 1 0� 95 t Drainage of Vine Brook Watershed in South Central Portion of Lexington Reports of the Selectmen and Planning Board and Copy of the Report of METCALF & EDDY, Engineers LEXINGTON, MASS, May 69 1930 Report of the Planning Board April 15, 1930 The Selectmen, Town Offices, Lexington, Mass. Gentlemen: Pursuant to vote of the adjourned Town Meeting of March 31, 1930, the Planning Board submits herewith copy of the principal part of the report of the Engineers, Messrs. Metcalf & Eddy, under date of September 29, 1928, upon the subject of drainage of the Vine Brook area. The copy lacks a reproduction of the plan giving the soundings taken throughout the drainage area because the data on said plan is so small it would not re- produce satisfactorily. Bound with the report is a copy of the plan prepared by A. A. Shurtleff of street layout to harmonize with the drainage channels. This street layout has already been changed somewhat and will be subject to further changes as the detail work of development proceeds, but it affords a good idea of the plan of through ways and principal connecting streets as they will eventually be built if present plans are carried out. Except as above, the copy of the Metcalf & Eddy report is com- plete. That report discusses present conditions; outlines a sys- tem for draining the area south of Massachusetts Avenue to reclaim the present low and unusable portions thereof; lays down a system of through highways to fit in with the proposed drainage channels; gives plans for installing sewers to serve the territory and finally presents a careful analysis as a guide to the assessment of betterments upon the benfited areas. The drainage system suggested covers both the North Branch and South Branch areas, respectively at opposite sides of Waltham Street, also the trunk line section which extends beneath Vine Brook Road, Massachusetts Avenue and the rail- road. These areas aggregate some 900 acres. While the entire project could be carried out as a unit with large savings in cost, and while the entire plan, if executed as a single undertaking, would undoubtedly simplify the problem of assessment of betterments and would probably permit the Town to recover most of the cost, if not the entire cost of con- struction by assessment of betterments, the Planning Board feels that the entire project would involve so much money that the Town would hesitate to undertake it all at once. Further- more, the entire project, if executed at once, would also possibly throw into the market more land for residential building than could be well digested in a period of time that would make it profitable. Therefore, the Planning Board feels that it would be wiser to undertake a part only of the work at this time, leaving the balance to be executed at a later date when the need therefor shall have become more immediately imperative. The Town should, however, immediately make such layouts and takings as will make possible eventual accomplishment of the entire project. The trunk line section extending from a point just above. Vine Brook Road to and under Massachusetts Avenue and' the railroad to an outlet point some thousand feet below the rail- road, being located almost in the heart of the business section of the Town, is the key to the entire situation. The capacity of this section must be increased.in the immediate future to take care of the surface drainage from the center of the Town without considering the problem of conducting away the waters received from the areas beyond. This trunk section must be lowered some eight feet before the South Branch area above can be properly drained for building; the North Branch area will require oa lowering of not more than six and one-half feet. The Planning Board has felt that this trunk line section should be deepened and constructed by the Town as a Town project and at the expense of the Town; its location in the very heart of the Town; the fact that it drains the entire business center as well as the area surrounding the center; the fact that the entire Town would benefit from this improvement just as the entire Town benefits from any improvement in the center of the Town; and the complications that accompany any effort to assess betterments in respect to that particular section of the brook would seem to make it more properly a Town propo- sition than one relating to bordering properties only. It would seem that every municipality is under obligation to maintain drainage structures, adequate for the normal growth of the town. Furthermore, the Planning Board believes that the en- hanced values of property throughout the center of the Town and the area drained eventually into this trunk section of the brook would in a comparatively few years return to the Town in taxes more than the reconstruction of this particular sec- tion would cost. 2 The trouble with the General Betterment Act has been that the entire cost of any improvement must necessarily be assessed as betterments, —it is not possible to divide the cost; and these betterments can not be assessed until after the work is completed. If any error is found to have occurred in method of assessment or in the apportionment among the properties especially benefited, the entire assessment can be thrown out and the cost of the completed work would then fall back upon the Town. In June last a new Betterment Act was passed, Acts of 1929, Chapter 380, evidently with the purpose of removing some of the objections to the earlier act. This recent act makes pos- sible, among other things, the assessment of a part of the con- struction cost only instead of the whole cost, where the situa- tion justifies, and provides also for outlining a plan and taking the matter before the court for approval or disapproval before any costs of construction are incurred. If the court approves, then the work may be carried out with comparative certainty that the betterments assessed according to the approved plan may be collected, and if, after the court has considered the proposed plan, it appears to the Town that the cost is likely to be heavier than it anticipated, the Town may abandon the entire project, reimbursing land owners for any expense they may have been put to in opposing the plan before the court. Apparently many of our citizens feel that any work of this sort should be constructed under a Betterment Act, and if a majority of the Town Meeting members entertain that view, this new Betterment Act above referred to would appear to furnish the most desirable plan upon which to proceed, for it would not, like the earlier act, require the entire cost of the trunk section to be borne by the properties especially benefited along its line and along the North and South Branch areas, to the exclusion of the Town as a whole. Just what betterments would, under this act, be assessable along the trunk line cannot yet be stated at this time, but this new act would make possible the assessment of only so much of the entire cost as would appear to be just and fair. As the sentiment of the Town appears to have developed, it would seem to be wise to undertake at once not only the deep- ening and improvement of the trunk section, but, in addition, what is known as the South Branch section extending to Mar- s rett Road. There can be no question but what the South Branch section should be constructed under one of the Betterment Acts. Roads We suggest that the roads be omitted from consideration at this time except that the Town should adopt a definite plan and make any necessary layouts, and takings where necessary, to assure that, such roads as eventually may be built, shall be built in accordance with that approved layout. As such roads are found necessary, they may be built like other roads in newly developed areas in the Town, the cost of the same to be charged back against the abutting lands. This cost at the present time averages from $7.00 to $10.00 per lineal foot of road. In the present instance, some of the roads should be built to serve as through roads, to relieve Massachusetts Avenue and the center of the Town of as much traffic as possible. To that end such roads should be built as indicated on the Shurt- leff plan, wider than would be necessary for purely local needs and, as a consequence, the Town, and possibly the State, should bear a proper part of the construction cost. Sewers Sewers also, so far as necessary to accommodate the areas under development, should be built under our present act, and therefore form no necessary part of the present drainage prob- lem except that such sewer as must extend from Vine Brook Road to junction with the present sewer trunk line in the vicinity of Sheridan Street, estimated to cost $8,000, must be built at the expense of the Town because the locality through which that section must extend is already served by and has been assessed for the present sewer system. Costs Messrs. Metcalf & Eddy estimate the cost of the trunk line drainage section, extending from its outlet near the junction of Sheridan and Grant Streets to Vine Brook Road, and includ- ing necessary engineering, at: $88,000 From Vine Brook Road to the new junction point a short distance beyond the proposed exten- sion of Winthrop Road: 15,000 From the new junction point to Marrett Road: 17,000 A total of: $120,000 The cost from Vine Brook Road to the new junction point: $157000 Thence to Marrett Road: 17,000 A total of: $329000 should in any event be assessed under the Betterment Act upon the land specially benefited. There are 166 acres of unusable land in the South Branch area. Deducting 20 acres for land which, when drained, may still be found unsuited for building, and good for parks only, leaves 146 acres of unusable lands to be reclaimed; at 43,560 feet per acre, this would mean a total of 6,359,760 square feet. A bet- terment assessment of one-half cent per square foot upon this area alone — $218 per acre — would bring a total of $31,798.80, or approximately the cost of the drainage channel from Vine Brook Road to Marrett Road. This does not take into account additional betterments that may be assessed upon higher lands, fronting upon the unusable areas and now inaccessible because of the same. It would seem, therefore, wise to take in the entire South Branch area with the initial construction of the trunk line under Massachusetts Avenue and the railroad. To make this possible, another meeting must be called, the warrant for which shall contain an article of broader scope than Article 34 of the war- rant for the present meeting. The engineers, following a further examination, confirm the report originally made to the Planning Board, that for the present there will be no appreciable damage to the areas below Grant Street from such increased rate of flow as may result from the deepening of the brook throughout the trunk and South Branch sections under consideration; that such increase as may result will be accommodated by enlarging the culvert under Hayes Lane, which is included in the scheme already pro- posed, and by substituting two culvert pipes each of about five feet in diameter for the single culvert under East Street now existing and cleaning the brooks, at an additional cost esti- mated by the engineers at something less than a thousand dollars. Later it may be found desirable to improve the lands be- low Grant Street as much as is now proposed for the North and South Branch areas, thereby to remove danger from increased flow from above Vine Brook Road as building in that locality proceeds, and at the same time render the lands south of Grant Street available for building just as the upper areas will be made available by the proposed drainage scheme. The engineers also report that in their opinion there will be little liability from damage claims arising from shifting the locations of brooks in the North and South Branch areas — at most a relatively small liability. The matter of connecting necessary or desired laterals with the main drainage channels would appear to involve no serious difficulty. The engineers advise that, in general, these laterals should be constructed by the property owners to drain their several properties into the main channels to whatever extent necessary to adapt the properties to desired uses. Most of the large individual properties in the South Branch area adjoin one or both sides of the proposed South Branch channel and can with little difficulty be drained thereinto: If it is desired to convert these properties into residential develop- ments, laterals would probably be necessary, but in general such laterals should follow the streets laid out and approved by the Board of Survey for residential development; they would or- dinarily take the form of drains or pipes underlying the streets and would be constructed at the time the streets are con- structed. Obviously it is impracticable to lay down those laterals in advance of the detail plans for residential development be- cause the laying out of streets and lots necessarily constitute parts of a single problem — neither should be laid out inde- pendently or in advance of the other. There are some small properties in the South Branch area that will not be directly reached by the proposed main drainage channel but such properties can easily be accommodated, when necessary or desired, over the layouts for some one or more of the projected streets. In the nature of the case many details must be left until the work is entered upon but we are convinced the project involves no insurmountable nor unduly expensive problems. The plan of betterment assessments suggested by Messrs. Metcalf & Eddy is probably more extensive than would be prac- ticable for the Town to adopt; but will be exceedingly helpful in estimating any betterment plan that may be proposed. l iA By undertaking the work under consideration, the Planning Board feels that the Town will protect itself against any un- desirable development within this large drainage area, and will invite and assure itself the kind of development that will be in every way to the best interests of the Town. Respectfully submitted, F. L. EMERY, Chairman Reports of the Selectmen THE MAJORITY REPORT May 6, 1930 To the Town Meeting Members, Lexington, Massachusetts: The subject of drainage as it is related to the Vine Brook area now under consideration and which the Town Meeting members will be asked to consider at a meeting May 19, 19309 has been discussed from many points of view. While it has been studied by a number of our townspeople, we ask that you study the enclosed report of Metcalf & Eddy, Engineers, under date of September 29, 1928 to the Planning Board, and the report of the Planning Board to the Selectmen under date of April 15, 1930. While we as a Board have been giving a great deal of study to this project for a number of years, we have studied it more intensely in the last few months. The report of Metcalf & Eddy, Engineers, which is sub- mitted herewith, shows us very conclusively what must be done to make this drainage, possible. The Planning Board has made an exhaustive study of this report and has made specific recom- mendations concerning its adoption. Your Selectmen have also made a careful study of the report of Metcalf & Eddy, have con- ferred with the Planning Board, have held several informal meetings with interested groups and made independent investi- gations, and we are of the opinion that the Town should adopt the plan as a whole and proceed at once with that part of the project which includes the trunk system and the south branch. While it is not possible to anticipate how rapidly this land will develop once it is drained, Winthrop Road is already being extended to Waltham Street by private enterprise, and it seems reasonable to expect that more streets will be laid out in the near future. Even if all the area is not immediately developed, its value is obviously greatly enhanced by changing it to a well drained piece of property in close proximity to the center of the Town. It must be conceded that no amount of money spent on clearing the present channel of Vine Brook and rebuilding walls will be of any avail as long as that part of the trunk line sec- tion which runs under Massachusetts Avenue is eight feet higher than the point to which the water table must be lowered to make this land available for building purposes. In view of the fact that many citizens are of the opinion that this entire project should be authorized under the Better- ment Act, and since most of the property owners in the south branch area have expressed a willingness to agree to a reason- able betterment assessment, we now recommend this procedure in order that the Town may have immediate returns on its investment. We have secured definite estimates on this work by differ- ent contractors based on the specifications of the Town Engi- neer. These firms have had experience in this type of work, and we are confident that a substantial saving can be made over the estimates submitted by the Engineers, so that it seems probable that the entire south branch area can be drained for only a little more than the amount estimated by them to construct the trunk line alone. This lay out is in line with the studies we have had of the proposed through highways that will be of great value to the Town. It seems wise to us to encourage the land owners to lay out and drain their property along the lines suggested so that when the Town is ready to take over the street, under the Betterment Act, it will not be necessary for any drainage to be done at that time. 1't should be remembered that the Board of Survey laid out a street from Massachusetts Avenue to Vine Brook Road in 1918 over Vine Brook. This matter has been held in abeyance until the drainage of Vine Brook has been done. This, when constructed, will form an entrance to that territory between Massachusetts Avenue and Marrett Road, and is an important link of highway which will later lead to Cambridge by way of Belmont. This is the only portion in which the Town will en- counter damages of any consequence. In this section the Town will have to take 29,920 square feet of land and one house, and this should be done before the land becomes more valuable. We respectfully urge every Town Meeting Member to study with great care the entire report of Metcalf & Eddy and the recommendations of the Planning Board. We further urge a personal inspection of that portion of the drainage area that is easily accessible, so that the fullest possible knowledge may be obtained of this important improvement. Respectfully submitted, THEODORE A. CusTANCE ROBERT P. TRASH: CLARENCE SHANNON HALLIE C. BLASH Selectmen THE MINORITY REPORT My reasons for a minority report on Vine Brook drainage are as follows: I do not believe that the closed drain proposed from Vine Brook road to Sheridan Street will take care of the drainage in the area between these two streets. This is to be a tight cement pipe, and I cannot see any way for the ground water to enter. It will only take care of the street water trough catch basins. Also, no borings have been made so far to determine the nature of the soil through which this drain must pass. If it should be quicksand (the same as encountered when the Cary Memorial Building was built and the sewers in Massachusetts Avenue constructed) it will add very much to the cost of con- struction. I think this information should be in the hands of the voters before they are asked to vote on this project. So far as the South Branch is concerned, lowering the brook only will not take care of lowering the water table any great distance back from the brook itself. In order to accom- plish this, laterals must be put in close enough to each other to take care of the water in the ground in the areas removed from the main brook. If these laterals are not provided and the water in these back areas taken care of, I do not think the Town 'f !1 I can collect betterments on the areas not drained. No plans for these laterals have been presented, and no money provided for their construction in the figures presented to the Town. In regard to the question of betterments, this drainage pro- ject, when carried out, benefits the owners of the area involved so that they receive a very distinct improvement. It seems to me that they should be willing to make a definite agreement fl with the Town as to what extent they are willing to stand bet- terment assessments, thus relieving the Town at some future time of probable litigation or the alternative of abating them. Respectfully yours, ALBERT FI. BURNHAM, Selectman I � 10 Mem: AL r & EOav 'onsu:/in0 Ei�,yin0ere PL l9CE .. .90S70N, .NAbs. /� TABLE 2 COMPOITAT/ONS XOR DRAIN6 OR COMB/1v4rD SEWERS 3-Ph27 .. SHEET No. _ _ _ _ ... OF _ _ _ _ _ .. SHEETS DATE D/STR/CT-------- V/KE__BROAR_------------- _.- RA/NF.ALL CLR VE BDIIJDAG.iL.� YR. F�YfO.____._..... -AEviiec s-n:r<rs' ._ CONOpurm BY --- ✓KiR,-._._......CHECKED BY NRO,- _ AIN DRA/N---------------- -----------'------'-' SuB-MA/N - _.__.________________ ------- - _.. CAPACITY Or DRS/NS HOW DETERM/NED.. Line Arg7/xnmu/ COmu/ahYtAmt. TiineMiru/es 5bci7ofCrain ,Surface£/er, Invert Clev Va. From ;a home of SUeet C. t. C' 6i A. lielocit y C �` Diemek+ Aver. Le RFMHRHS Av. Coet. flo f/0w. Gut hlon .yach2e 0r•{0 Loeat/on Acivs 1ma Acus of c. ERS. Up,Oer in l,P.S. crps. / (lncArg) ie Tata/ (/pper Lower er P, Lower feet /Mo. fnd Sectien 9r ,Orr ft. s/2e End End fnd End feet fe I!1 (2) (3) (4) (5) (61 (%'•% (B) (9) (10) r,'( (l2) (13) 11014) (.'5) 616, (17) (1B) (1) (20) (21,) (22) (23) (24) All •26 219 •2S .39 96 30.0 .3 2 6.8 86 4r" .0a0µ AW 22/•0 2d6 /300 2 S• npp /9 7 .38 90 J.A2 °'/ "r S/i. i/•0 4 26/ •37 9 35.1 /.O 3.4 yY , eel 9x .o0P2 0.4 209.9 201.5 2a0 as /OS ace 132 36.2 348 3.7 /34 / 7x .aa2P 2.9 2o9.s 207.2 n. .ez5 S _''r7f0 • 67 rt33 S /S2 4/•0 6.0 3.8 /S2 i" °'�' •0022 3.0 207.2 20152 n>.azr /3sa /Mn�_'a' 6 pyso - 2/ 454 •34 /54 470 6.3 3.9 /s'y i• .oa22 3.2 - 201`2 /.a n-.o2J /ICTO 7 sB..Mn _ ±7 So/ •33 /66 SJ.3 /./ 3.9 /06 '. va.r. ,00P2 0•6 20/.0 20a.� 8 .Qa/otaJid SB�x/.rlr /6 .2S /6 .2S ,•µ/ .6 15.0 *2 2.9 6.6 2/" 1.7 •d A6'meNRl .4/lro u 4at80 26 f2 40 /6.9 293 7.3 L6S l6.8 .024 9 ,Ow BS 206.2 0%V 20Y.S 209.8 0 n. o/S 2 /�3=, 3400 M1L3 BS •3 3/.S 36.5 9.S /• 9 3/•7 z '• .oa0at o, 203.7 202.8 /030 /«.0�2• /3 .2ztro •• 7 92 .SS 46.0 7•I /-9 3/• Cr.e00 0.6 202.8 02.2 n=.°25 /f .2o/8a �� %0� /96 •33 6S S31 /•3 2.3 7 .00095 0,2 201.2 201.0 7 0 n= •025 3s' 5 _ 7faa NaI� Chtrne/ S/9 7�S _ J3 230 sWi 6.9 3.3 228 .00/2 1. 200.2 198.7 2 0 •-+ n-.025 /390 �� I6 or0 s8 _ 773 •3/ 240 6/•3 3.5 3.3 138 "r' .00/2 _ 0.8 198.7 1979 e9' q:.o2s a, 47 r _ _ /29 902 .36 270 648 2.8 3.3 2s9 .00/2 0.7' l9 197,2 0 n: .025 /6 _ s' ___ _ 39 0 292 /.S 9.l 292 7J'• ,9 /9i.8 I 0 /e„0 n_.ozS /9 •'/""/l art 97S .30 292 69.1 0.9 9.S 292 .Oo34 75" ,0036 1• l90.1 190. 1$1. 'i 800 n_.0/8 2/ 9 _ 97S 'Ap2 2 69.9 0 9.8 292 ' .o/y S3 lid. 183.1 4-70 n=•0/3 BBo �/ I'�a� c.o3o 22 h'i aG _ 9BS' 295 .6 295 .000rf µ 183.1 /81-7 0 25' �.° / / n-.aa0 23 24 25 ;F7- 729 29 -- - - - - _30 - -- - -- 3z 33 d+ 39 Copy of the Report Of Metcalf & Eddy, Engineers Iz TABLE OF CONTENTS Page No. Letter of transmittal ............................................ 14 Report Outline of Problem ......................................... 17 Basis of Design ............................................. 18 Types of Channels .......................................... 21 Soil Conditions ............................................. 22 Sewerage .................................................. 23 Drainage Projects Studied ................................... 24 Proposed Drainage Project ................................... 25 Open Channels ......................................... 25 Portions of Channels to be Covered ....................... 25 Old Lexington Reservoir ................................. 26 Soundings ............................................. 26 Location of Channels .................................... 27 Area Tributary to Channels .............................. 27 Estimates of Cost of Proposed Drainage Project ............... 28 Proposed Through Highways ................................. 29 Vine Brook Betterments ..................................... 31 Drainage Benefits ...................................... 31 Park Benefits ............................................ 34 Through Highway Benefits ............................... 35 LIST OF TABLES No. Page No. 1 Maximum Average Intensities of Rainfall at Chestnut Hill Ar- ranged in Order of Magnitude Based on Records from 1879 to 1916, inclusive ........................................ 20 2 Computations of Design..............................Opposite 32 LIST OF FIGURES 13 Opposite Page No. 1 Rainfall and Runoff Curves for Use in Design of Drains for Vine Brook District...................4............... 22 2 Map of Vine Brook Drainage District ....................... 25 3 Preliminary Development Map ............................. 28 4 Typical Sections of Open Channels .......................... 28 5 Profile of Proposed' Relocated North Branch Channel of Vine Brook............................................... 28 �! 6 Profile of Proposed South Branch and Main Channels of Vine Brook............................................... 28 7 Map Showing Proposed Through Highways ................. 30 8 Drainage Benefit Map ..................................... 36 9 Park Benefit Map ......................................... 36 'y 10 Through Highway Benefit Map 36 ......................1...... 13 d LETTER OF TRANSMITTAL Town Planning Board Lexington, Mass. Gentlemen: We transmit herewith our report upon "Drainage of Vine Brook Watershed in South Central Portion of Lexington." This report may be summarized as follows: The drainage area of Vine Brook south of Massachusetts Avenue, comprises about 900 acres much of which is close to the center of the Town and unsuitable for residences because of its low swampy nature. Considerable portions of these areas can be made avail- able for residences by the construction of suitable drainage channels and conduits. Other portions have firm bottom so deep that it will be best to reserve them for use as parks or playgrounds, -because foundations would be too expensive to warrant development into house lots. It is advisable for the Town to adopt a plan for the drain- age and development of this district, in order to control the develpoment and forestall difficult drainage and sewerage prob- lems which would probably result from uncontrolled develop- ment. For the brook channels, it is economical to build portions of open earth channels and portions of closed masonry conduits and to so locate them that they can be constructed in firm ground where deep foundations of piles or masonry will not be required. We have designed the main brook channels and conduits to care for the run-off from a two-year frequency rainfall gage at the Chestnut Hill Reservoir of the Metropolitan Water Works. Occasionally,, very heavy storms will occur, which will cause some flooding of streets and cellars in the low areas. The soil in the swampy areas consists of a soft muck over- lying sand, gravel, rock or clay. After the ground water level has been lowered in these areas by the construction of the pro- posed channels and, conduits, a subsidence of the surface of a foot or more will take place because of decomposition and com- pression. This fact has been taken into consideration in our design of the drainage channels. Cesspools will be impracticable of operation in the swampy areas, because the soil will be very slow to drain. Therefore, sewers must be provided before development can be made in the low portions. A submain sewer can be built to serve the 14 North Branch district and discharge into an existing sewer near Waltham Street at the present brook culvert. Portions of the South Branch Districts are so low that a satisfactory sewer to serve the area cannot discharge into the existing main sewer near the junction of the present North and South Branches. It will, therefore, be necessary to build a new sewer substantially parallel to the existing main sewer from the junction of the existing North and South Branches to a location near Grant and Sheridan Streets where it will discharge into the existing main sewer. The proposed drainage project involves an open brook channel for the South Branch of Vine Brook following near the easterly1border of the swamp from a point 700 to 800 ft. north of Marrett Road to the junction with the proposed channel for the North Branch. The channel of the North Branch will be relocated following the easterly and southerly shore of the swamp, thus diverting the flow from the present brook channel which is parallel to the park road west of Waltham Street. From the junction of the North and South Branches, an open channel will extend north to a point near the southerly line of Massachusetts Avenue; thence the channel will be a covered conduit to the end of the steep drop several hundred feet north of Sheridan Street with a relatively short open channel to con- nect with the present brook channel. If preferred, the covered conduit can be extended from Massachusetts Avenue to Vine Brook Road. The estimates of cost of the main drainage channels and conduits are as follows: North Branch $712000 South Branch 17,000 Main channel from junction of North and South Branches to Massachusetts Avenue 30,000 Main channel east of Massachusetts Avenue 67,000 Total $185,000 The estimated cost of the through highways required to provide access to the areas within the district is $241,000. This estimate is based upon a gravel surfaced roadway 24 ft. wide. When permanent paved surfaces are required for these high- ways, an additional expenditure of about $163,000 will be re- quired. We have studied the problem of assessment of betterments upon the areas within the district, to cover the cost of drainage 15 and through highways. We recommend that the cost of con- structing the drainage channels and conduits be assessed uni- formly upon the drainage area for the reasons given in the re- port. We recommend that the cost of through highways be assessed in accordance with the principles described in the re- port and illustrated by the through highway benefit map (No. 10, opposite page 36). The construction of the drainage channels and conduits will make possible the development into parks or playgrounds of considerable areas which will not be suitable for residences. Certain adjacent areas will be benefitted by these parks, and we recommend that such areas be assessed the cost of the con- struction of main drainage channels which would otherwise be assessable to the park areas. We recommend that these assess- ments be made in accordance with the principles described in the report and illustrated by the park benefit map (No. 9, opposite page 36). We have worked out assessment units for the three differ- ent types of benefits. It is probable that some modification will be made in the relative assessments, but we believe the prin- ciples upon which the proposed assessments have been based are sound and equitable. For the park and highway benefits, the district should probably be divided into smaller zones so as to make smaller differences in the benefit ratios. Such a method would involve a large amount of work which does not appear to us to be justified at this time. By the methods which we have used, the maximum assess- ment on any given area for the drainage, through highway and park benefits combined would be $0.03137 per sq. ft. The share of the cost of the improvements to be borne by the Town would be $52,900. The proposed drainage project can be carried out in sec- tions in accordance with any financial program which the Town may see fit to adopt. Considerable saving in expense can be realized if the drainage channels, sewers and through highways for contiguous portions of the project are constructed under one contract. Our estimates have been based upon such a pro- gram. Before any portion of the construction work is under- taken, plans and specifications will have to be prepared. Very truly yours, METCALF & EDDY By Almon L. Fales T REPORT Town Planning Board Lexington, Mass. Gentlemen: Sept. 29, 1928 As authorized by the Lexington Board of Selectmen, we have completed our studies for the drainage of the Vine Brook watershed in the south central portion of Lexington and pre- sent the following report thereon. OUTLINE OF PROBLEM The drainage area of Vine Brook south of Massachusetts Avenue comprises about 900 acres, including extensive areas of nearly level swamp lands which are subject, to flooding during rainy seasons and are for the most part unsuitable even for agricultural purposes. Portions of the high sloping firm land surrounding the swamp areas, particularly those adjacent to the swamps, are inaccessible for dwellings and are available only for agricultural uses. A preliminary investigation indicated that it would be feasible to carry off the storm water and to lower the ground water level in the low areas sufficiently to permit of their de- velopment for residential purposes, by the construction of chan- nels for the main brook and the north and south branches be- ginning near Sheridan Street where there is a rapid fall in the brook of several feet. The greater part of the swamp lands and inaccessible higher areas adjacent thereto is situated within one mile of the center of Lexington, and practically all of the available accessible land between the center of the Town and these swamp areas has already been developed with streets and resi- dences. The recent rapid growth of the towns of Arlington and Belmont as well as some developments in Lexington, indicate that the demand for land for residential purposes in Lexington will be far greater in the near future than it has been in the Past. 17 There has already been considerable development of the higher lands of the district and some lateral drains have been constructed which convey the runoff from the streets to ditches or brooks. Some lots south of Massachusetts Avenue and cel- lars along Vine Brook Road have been subject to flooding. With continued development of the higher lands of the district, more frequent and more widespread flooding will occur unless adequate main channels and conduits are provided for Vine Brook and its branches. If the large areas of swamp lands and inaccessible higher lands in the Vine Brook watershed remain unimproved and un- controlled by the Town, it is probable that a low grade of de- velopment will start in these areas and that serious sewerage and drainage problems will arise in the future. It is advisable to adopt a plan for drainage and improvement of these lands Whereby those portions which can be made economically suit- able for a good class of residences will be so developed and those which are suitable only for parks will not be encroached upon. The Town Engineer has furnished us with maps of the Vine Brook district and with other available information bear- ing on the problem of drainage including the Report on Lower- ing Brooks by McClintock and Woodfall in 1913. We have supplemented the data furnished us by some check surveys and by many rod soundings in the swampy areas. We have consulted with Mr. Shurtleff in regard to loca- tions for the required brook channels, and he has furnished us with plans of proposed highway layouts. Our Mr. Raymond has attended several conferences of your Planning Board and one conference of your Board with the Selectmen. Our report deals with the basis of design of the brook channels, types of channels, soil conditions, drainage plans con- sidered and recommended plan of drainage with estimates of cost. At the request of your Chairman, we have also estimated the cost of proposed main highways through the drainage dis- trict and have suggested a method of assessing betterments. BASIS OF DESIGN Under existing conditions, high flows in Vine Brook ordin- arily occur during the spring. However, considerable areas of land are subject to flooding from any long -continued heavy rain. The higher rates of runoff through the brook channels under present conditions are much less than will occur when the 18 drainage area has become developed with paved streets and the lots have been built upon. Furthermore, the building of streets with catch basins and drains will cause the runoff to pass into the channels rapidly, thus resulting in a higher maximum rate of discharge. The problem of determining the carrying capacity which should be provided in the design of channels to convey the run- off resulting from storms is not a simple matter, of computa- tion. It involves the determination of the tributary area and the slope available for the channel, an estimate of the prob- able future character of development, a study of the intensity, duration and frequency of rainfalls which are to be expected and a consideration of the relative benefits which would be de- rived from the construction of channels having different capacities. On rare occasions, very severe and intense storms occur which produce rates of run-off so high that it is uneco- nomical to build channels large enough to prevent flooding at such times. After the districts have been developed, some portions will be subject to more frequent flooding than others. If covered channels were used throughout for the main drains, a more liberal capacity would be required than if open channels were used, because an increased depth of flow in the open channels would result in a greater discharge capacity, whereas no mate- rial increase in capacity would be obtained from sur -charging of long covered channels. It is our judgment that if open channels be provided for the main brook and the principal branches, and about 3 ft. of freeboard allowed between the water surface and the tops of the banks of the channel, provision should be made for a rain- fall rate which may be expected to be equalled or exceeded about once in two years on the average. We have examined the records of the rain gage at the Chestnut Hill pumping station of the Metropolitan Water Works as published in the Journal of the Boston Society of Civil Engineers, 1920, Vol. 7, p. 47, and have constructed a curve which represents those frequencies of rainfall which may be expected to be equialled or exceeded once in two years on the average. Table 1 snows the intensities of precipitation in inch- es depth per hour, the order of magnitude, the frequency and the duration in minutes for the records from 1879 to 1916, in- clusive. M x x x x x NOt�NmmMNrIM rloo-�o �oommmin .y.-�00000poo x x x x HO Mtp 1[]d1000O rl rlrno-tio-o- mcoo ri r• C:) c; pGGGCo x x x OON tO t�J of if �mO>V.1 N NrI O�TOJ WNN 7414110000000 MTMd1M d�NrnW00 V1MNr-1110000MM H 1111 rlH HHOOO N�cmci cmi lei Nl�o 1111 r4 v4 r4 r4 7'1 r4 141'1 k NMMt no�amrl oo-ln u���ncmMN N r1 11117-1111111 rl rl o MeM N 1nN N111[a .+ Iq 00�0)0000NI[J� N N 4117-1.1.4 11.1 ri x M NNN000 tp llJO pp .no-mwmrl o ooMN MNNNNNrfHHH x N �co�orn 11 <nmmo <G . . . . .V. . . y1M MNNNNNNN x x 1nwMMM000rn 1r, In wln lr lr��a 000000000 x x t�0 �i~O fPD LL�]1�Li 1M[]1iM71 000000000 x N NNC��cCp tOp tOp 0 0 0 0 0 0 0 0 0 x �O O M 00 00 O 1fi �M dl M MOD I�L�CL�I�I� 0 0 0 0 0 0 0 0 0 o- Mr+M MMoo In In a o>aMMMooMM 0 0 0 0 0 0 0 0 0 o�d7m 11a PC•C•Ip r1 .-1111-+ 0 0 0 0 0 rl 11 ri rl rl r111 r1 rl Y 1nwo�wMNom eM V1MMMMMMN rl 71 r1 rl rl rl r1 r1 rf M d�MNO Pln d1 I�PL�L�Po-l�mlei 11 ri 11 ri 111l ry ri 11 omcommN o�nM Mr11111 ri rY00T NNNNNNNNr1 I��ON7-1 tO M 010)M 7D �0 <D 1:J d14'J V1<D tD C r1bd1'd1M OL t 0 4'J 101[J UJ 11)�d�C�JM UG VCM MMMMNNN NNNNNNNNN C1P'J OMi OMO C�•OOi 1�(J d1MP O OOO�iATAO>NN ep�dl ylMMMMMM MMNNNNNNN H V1 d1 uN'.,�CMD��NN Nr~1 Obi OOiW CNNN it x x x x x NOt�NmmMNrIM rloo-�o �oommmin .y.-�00000poo x x x x HO Mtp 1[]d1000O rl rlrno-tio-o- mcoo ri r• C:) c; pGGGCo x x x OON tO t�J of if �mO>V.1 N NrI O�TOJ WNN 7414110000000 MTMd1M d�NrnW00 V1MNr-1110000MM H 1111 rlH HHOOO N�cmci cmi lei Nl�o 1111 r4 v4 r4 r4 7'1 r4 141'1 k NMMt no�amrl oo-ln u���ncmMN N r1 11117-1111111 rl rl o MeM N 1nN N111[a .+ Iq 00�0)0000NI[J� N N 4117-1.1.4 11.1 ri x M NNN000 tp llJO pp .no-mwmrl o ooMN MNNNNNrfHHH x N �co�orn 11 <nmmo <G . . . . .V. . . y1M MNNNNNNN x x 1nwMMM000rn 1r, In wln lr lr��a 000000000 x x t�0 �i~O fPD LL�]1�Li 1M[]1iM71 000000000 x N NNC��cCp tOp tOp 0 0 0 0 0 0 0 0 0 x �O O M 00 00 O 1fi �M dl M MOD I�L�CL�I�I� 0 0 0 0 0 0 0 0 0 o- Mr+M MMoo In In a o>aMMMooMM 0 0 0 0 0 0 0 0 0 o�d7m 11a PC•C•Ip r1 .-1111-+ 0 0 0 0 0 rl 11 ri rl rl r111 r1 rl Y 1nwo�wMNom eM V1MMMMMMN rl 71 r1 rl rl rl r1 r1 rf M d�MNO Pln d1 I�PL�L�Po-l�mlei 11 ri 11 ri 111l ry ri 11 omcommN o�nM Mr11111 ri rY00T NNNNNNNNr1 I��ON7-1 tO M 010)M 7D �0 <D 1:J d14'J V1<D tD C r1bd1'd1M OL t 0 4'J 101[J UJ 11)�d�C�JM UG VCM MMMMNNN NNNNNNNNN C1P'J OMi OMO C�•OOi 1�(J d1MP O OOO�iATAO>NN ep�dl ylMMMMMM MMNNNNNNN H V1 d1 uN'.,�CMD��NN Nr~1 Obi OOiW CNNN 7-1NMV1�eOt Op pyo 7'1NM�Y]O.L�Op Oi r1 r, r1 r1 r1 .. 11 r, r, r1 20 The proportion of the rainfall which runs off immediately and during a storm depends upon the character of the sub -soil, the slope of the ground surface and its condition, that is, whether of sandy or clayey nature and whether covered with vegetation, buildings, pavement or sidewalks. The soil of the greater part of the district is of a sandy nature. The slopes of the land adjacent and surrounding the swamps are rather steep. It is expected that the development will result in relatively large lots, and that considerable areas of the swamp lands impracticable Of development for residen- tial purposes will be used for parks or playgrounds, so that the district as a whole will have a fairly low percentage of total impervious area. Consequently, drains of less capacity will suffice than would be required were the soil of a clayey nature and the percentage of total impervious area high as is found in the centers of large cities. We have estimated that the average proportion of impervious surface in the whole area will be about 25 per cent. The diagram, Fig. 1, shows the two-year rainfall curve together with the runoff curve used as the, basis of design for determining the required capacity of channels. TYPES OF CHANNELS To make the low areas suitable for developments for resi- dences and parks will require main drainage channels in which the water surface will be well below the adjacent ground surface most of the time to insure a low ground water level and with sufficient capacity to prevent frequent flooding of streets and yards during heavy rains. Two types of open channels have been considered, — one with masonry walls on timber foundation, for use where it was contemplated to locate the brook channel across swampy areas where a hard bottom is at considerable depth below the swamp surface, and the other a channel without masonry or timber foundation to be constructed in firm soil, with sloping side sur- faces which can be grassed and thus present an appearance in harmony with attractive main thoroughfares bordered by planted strips. Such a channel can be used effectively with double-barreled highways, the brook channel to be located between the two highway lanes. Covered masonry channels or conduits throughout have been considered in one project studied, and in another project 21 M NICUM I�dI Oi� 1~-1tD\\N H1�•I� b M�GV MrO1�ANeD V1 MM CV 4VN�NN 7-1NMV1�eOt Op pyo 7'1NM�Y]O.L�Op Oi r1 r, r1 r1 r1 .. 11 r, r, r1 20 The proportion of the rainfall which runs off immediately and during a storm depends upon the character of the sub -soil, the slope of the ground surface and its condition, that is, whether of sandy or clayey nature and whether covered with vegetation, buildings, pavement or sidewalks. The soil of the greater part of the district is of a sandy nature. The slopes of the land adjacent and surrounding the swamps are rather steep. It is expected that the development will result in relatively large lots, and that considerable areas of the swamp lands impracticable Of development for residen- tial purposes will be used for parks or playgrounds, so that the district as a whole will have a fairly low percentage of total impervious area. Consequently, drains of less capacity will suffice than would be required were the soil of a clayey nature and the percentage of total impervious area high as is found in the centers of large cities. We have estimated that the average proportion of impervious surface in the whole area will be about 25 per cent. The diagram, Fig. 1, shows the two-year rainfall curve together with the runoff curve used as the, basis of design for determining the required capacity of channels. TYPES OF CHANNELS To make the low areas suitable for developments for resi- dences and parks will require main drainage channels in which the water surface will be well below the adjacent ground surface most of the time to insure a low ground water level and with sufficient capacity to prevent frequent flooding of streets and yards during heavy rains. Two types of open channels have been considered, — one with masonry walls on timber foundation, for use where it was contemplated to locate the brook channel across swampy areas where a hard bottom is at considerable depth below the swamp surface, and the other a channel without masonry or timber foundation to be constructed in firm soil, with sloping side sur- faces which can be grassed and thus present an appearance in harmony with attractive main thoroughfares bordered by planted strips. Such a channel can be used effectively with double-barreled highways, the brook channel to be located between the two highway lanes. Covered masonry channels or conduits throughout have been considered in one project studied, and in another project 21 cov that a satisfactory highway cannot be constructed upon such bra soil and that it is usually necessary to remove the muck to' nor practically firm bottom and substitute a fill of good material the upon which to build the highway. There is an example in Lex- Wa ington where the park road follows along the north branch of stri Vine Brook between Waltham Street and the playground where at some locations it has been necessary to add filling materials con because of subsidence. fon Since the ground water level in many places will be only ope 5 or 6 ft. or perhaps less below the surface and as the muck tion is naturally very slow to drain, it will be practically impossible int( to provide sewerage facilities in the low areas by means of sid( cesspools, and therefore, sewers will be required before any pro considerable development of such low areas can take place. yea SEWERAGE tha A sub -main sewer can be constructed, to serve the North Branch District, from the existing sewer at Waltham Street near the present brook culvert, thence across low land west of sou Waltham Street to a location near the proposed open channel aft( and thence southwesterly along, and substantially parallel with, COIL the proposed brook channel. san4 The existing sewer near the present junction of the north ares and south branches of Vine Brook is too high to receive the peri sewerage flow from a sewer which will be low enoughto serve org; the South Branch District. The most economical means of pro - low, viding an outlet for the sewerage of the South Branch District and appears to be the construction of a sewer in the same trench sub; with the covered conduit and open channel for Vine Brook age. north of Vi'nel Brook Road to a point near Grant and Sheridan if t. Streets where such a sewer can discharge its flow into the exist - and ing main sewer. If a sewer is provided as described above, a sub -main sub; sewer can be constructed to serve the South Branch District ity from near Vine Brook Road along the proposed channel to Mar - wit] rett Road. quer If the above sewers are constructed at the same time as leve the main brook channels and conduits, a considerable saving in cost can be realized. Our estimates of cost of these sewers so refe constructed are as follows: reqs North Branch District sub -main sewer $16,000 whe South Branch District sub -main sewer 12,000 23 Sewer from junction of present North and South Branches of Vine Brook to point near Grant and Sheridan Streets 5,000 Total $36,000 If these sewers are not included in the contracts with the corresponding portions of the main brook channels and con- duits but are constructed independently, their cost will probably be much greater, perhaps two or even three times the above estimates. DRAINAGE PROJECTS STUDIED Consideration has been given to several plans for the principal drainage channels. A preliminary study was made with the proposed channels substantially in the location of the existing brook channels. These extend through portions of the swamp areas where the muck is of considerable depth. A brook channel in such a location would be quite expensive, re- quiring pile foundations and to be permanent should probably be constructed of masonry, at least those portions which would lie above the ground water level. Such a channel would not harmonize with the plan for parks and boulevards which your Board has in mind. Consequently final estimates for this pro- ject were not prepared. A plan of development consisting of a single roadway boulevard with the brook channel enclosed in a covered masonry conduit located beneath the roadway was studied. Such a pro- ject would require less area of land for the main highways and brook channels and probably would result in some saving in the cost of highways when compared with the double-barreled high- way scheme. The cost of the brook channel itself, however, would be quite expensive even if constructed in firm ground. Furthermore, such a channel would have no excess capacity above the design capacity, for the runoff from storms greater than that estimated for a two-year frequency storm, and more objectionable flooding would result than with an open channel. At the suggestion of Mr. Shurtleff, a study was made of open channels constructed in firm ground along the edges of the swamp. This plan would permit of economical construction of double-barreled highways for the main thoroughfares with an open brook channel between the two traffic lanes in accord- ance with the plan of development which your Board contem- 24 LEGEND -\ O'%m. Existinq Brooks or Ditches . Proposed Open Channels . of Covered 4%V,w Drainage Limits . Limits 015ub-Districts . Shaded areas require drainage before deYefopment. W i \��Y�N �6P`4q�5 P. �� VV .y �I►�� � p''rt b 'AT` y iL ��.µQy y2 UA �xz \ �" LEXINGTON I MASS. MAP OF VINE BROOK DRAINAGE D15TRICT SCALE- 800 Fr. To I i w.(ApmoxL NOV.15 1927. Yv�o 6t0-f.26,�928. M ETCALPE"EDW Engineers 50510N, MASS, Irla 04 1, ,•,(r��J r/ L \ I ' i 51• plates. Our studies indicate that open channels for the most part, but with certain portions covered, will be the best plan to adopt. PROPOSED DRAINAGE PROJECT The layout of the proposed drainage project is shown in Fig. 2. The computations of design are given in Table 2 in the Appendix. It is proposed to provide brook channel crossings under existing highways, by means of concrete masonry arches. Open Channels. The open type of channel can be used advantageously south of the southerly line of Massachusetts Avenue, since the ground surface is flat and a reasonably shallow channel will suffice. North of Massachusetts Avenue its use would result in so deep and wide a ditch that it would be very expensive and undesirable excepting just northeast of Sheridan Steeet where a relatively short open channel can be built, to connect with the existing brook, channel. The open channels, excepting that portion just northeast of Sheridan Street, have been designed with side slopes of 1 vertical on 3 horizontal for the portions of the slopesi beneath the water surface and with slopes of 1 vertical to 1 horizontal above the water surface. The open channel just northeast of Sheridan Street has been designed with side slopes of 1 on 1. The depth of water will vary from 2 to 3 ft. when carrying the runoff to be expected from the rainfall of two-year frequency after development to the extent assumed. Some of the typical earth channels used as the basis of our estimates are shown in Fig. 4. Portions of Channels to be Covered. Near the northerly end of the old race track, which is located between the old Lexington reservoir and Lincoln Street, the present brook bed of the North Branch of Vine Brook falls about 8 ft. in a dist- ance of about 800 ft. By making use of this steep drop, a covered channel can be built through the old race track location at an elevation low enough to permit of the development of nearly all the area within the race track with only a nominal amount of filling. A shallow open channel could be built through this location at a saving of about $15,000, but there would be about 6 acres of swamp which would be unsuitable for residences unless filled extensively. Therefore, a covered ehan- ne1is'proposed for the North Branch of Vine Brook upstream 25 of the location of the steep drop. This will be a circular con- duit 42 and 48 in, in diameter. Along the main channel between Sherman Street and Hayes Lane, the bed of the brook falls about 13 ft. in about 700 ft. By making use of this steep drop, a relatively steep covered channel can be built from near the southerly line of Massachu- setts Avenue to near the northerly terminus of the steep por- tion of the brook and considerable economy effected by the con- struction of a conduit of moderate size which will be suitable to carry the flood flows of the area after development. This con- duit will be 75 in. in diameter. Old Lexington Reservoir. 1'n our preliminary studies which have been discussed in considerable detail in conferences with your Board, it was assumed that that portion of the area of the North Branch District tributary to the old water works reser- voir near Marrett Road would continue to remain so. Thus it was permissible to design the brook channel leading from the reservoir, of somewhat smaller capacity than would be required were the reservoir not used. Such use of the reservoir would probably result in muddy water much of the time, and a rather rapid filling up of the bottom by the deposition of material brought in by the storm water. After considering this matter, your Board directed us to design the channels upon the assump- tion that the storm flows would not discharge into the reservoir. We have, therefore, prepared our designs and estimates herein upon the latter assumption. This requires somewhat larger sizes for both the open and covered channels than were used in preparing the estimates given in our letter of October 21, 1927. Soundings. Many bar soundings have been made to deter- mine a location where it would be feasible to construct open channels in firm ground. The locations together with the data indicating the material and depth are shown upon the map ac- companying this report. The figures on the map indicate the depth, etc.; for example, 15' indicates that a sounding was S ft. made 15 ft. deep and material was soft at that depth. Similarly Sd indicates sand, H indicates hard, R indicates rock, etc. Where there are figures above and below the line, such as (265.5) (6' Hd.) the figure above the line indicates the elevation of the surface of the ground and that below the line the depth of the sounding. The soundings indicate that there are considerable areas where suitable hard bottom is at such a depth that it will be expensive to build houses, streets, sewers and gas and water 26 mains, as they would require deep foundations. Such areas probably will be sufficiently improved by the general lowering of the ground water level so that with a moderate amount of filling they may be used for park or playground purposes. The development plan accompanying this report indicates such areas. Location of Channels. The proposed project involves an open brook channel for the South Branch of Vine Brook follow- ing near the easterly border of the swamp from a point 700 to 800 ft. north of Marrett Road to the junction with a proposed channel for the North Branch. The channel of the North Branch will be relocated following the easterly and southerly shore of the swamp, thus diverting the flow from the present brook channel which is parallel to the Park Road west of Wal- tham Street. This will result in a very small flow in the present channel and it may become advisable to provide a closed conduit in this location to serve the needs of local drainage. From the junction of the north and south branches an open channel will extend northerly to a point near the southerly line of Massachu- setts Avenue; thence the channel will be a covered conduit to the end of the steep drop several hundred feet north of Sher- man Street with a relatively short open channel to connect with the present brook channel. If preferred, the covered conduit can be extended from Massachusetts Avenue to Vine Brook Road. Profiles of the proposed north and south branch channels and the main channel are shown in Figs. 5 and 6, respectively. Areas Tributary to Channels. In Fig. 2 are shown the ap- proximate limits of the drainage area, the existing streets and brook channels and those areas which will require drainage before they can be developed. The total area of the district tributary to the main chan- nel (south of Massachusetts Avenue) will be about 984 acres. This area may be subdivided as follows: Area tributary to proposed North Branch channel about 455 acres Area tributary to proposed South Branch channel about 240 acres Area tributary to main channel between the junction of the proposed North and South Branches and Massachusetts Avenue about 206 acres Area tributary to main channel north of Massa- chusetts Avenue about 83 acres 27 The total area requiring drainage before development is about 312 acres. After the proposed plan shall have been completed includ- ing roadways, there will be approximately 185 acres of low land or at present inaccessible lands which will become suitable for dwellings. There will remain about 215 acres of low land un- suitable for dwellings and all of this except the portion required for the brook channels and highways will be reservations or parks. Fig. 3 is a preliminary development map showing the gen- eral arrangment of the proposed brook channels', highways and parks and the existing adjacent streets. ESTIMATES OF COST OF PROPOSED DRAINAGE PROJECT It is estimated that the construction of the proposed main drainage channels will cost about $185,000. The detailed estim- ates are appended to this report. A summary is given in the following tabulation: SUMMARY OF ESTIMATED COSTS OF MAIN DRAINAGE CHANNELS FOR VINE BROOK North Branch $54,080 Allowance for rock -10% 59408 $59,488 Engineering & Contingencies —20% 11,897 Total $71,885 South Branch $11,405 Allowance for rock —20% 21281 $13,686 Engineering & Contingencies -20% 2,737 Total 162423 Main Channel from Junction of North and South Branches to Massachusetts Avenue $229435 Allowance for rock -10% 2,244 $24,679 Engineering & Contingencies — 20% 40936 Toted 29,615 28 Fiq rtm my Amp Ordinary rwler SOUTH BRANCH STA.22+80TO48+00 OrdinaryW*r.rarfba %- 4. " NORTH BRANCH STA - 17+00 TO 30+50 Wa*surface fOrruaoj (Ar2)rearfrapaencysform Ordimry npirr/ �I" MAIN CHANNEL SOUTH OF VINE BROOK ROAD Grossed,furfoce-� �,� o Lome boulders cr �^ cobbles 6Ydinary Nater ruryace MAIN CHANNEL NORTH OFSHERIDAN ST. LFAiNGTON, MASS. /INE BROOK D157RICT TYPICAL SECTIONS OF OPEN CHANNELS SCALE 5FT.10 IIN. AuGu9T 9" 1928. MCTOALE COCY ENGINEERS BOSTON, VA ASS Ficj, 4 i Fig. 5. 225 ?20— 48P'Pe // c 215 / �; e y rAj / 1 Approx. har bottom . / A -16 215 APProx. r esen / �� / \ 0 Grou S rf — P Pe ` C Cu/ ert-' Wafe Sur!SO ce , ..— ���` S '0022 LEXINGT N,MASS. /8.7 VINE BROOK DISTRICT x,205 "_— F� eal- i --- 1.1 _lonl Ion I 3.0' lona PROFI E. OF - - \ �_--- --- ggr' 0.7' PROPOSED RELOCATED NORTH BRANCH CHANNEL - - / �� 22.4 Ion 3 OF VINE BROOK $x.0022 3.0 -/on/ .3/' — -loin 3 NOR. ZOOFZ.T SCALES -VERS. IIN. JULY 1928. 5 FT.T IIN. ,44' 23.2— _(on/ , 3.0- -/onl - --- — lon 3 30 ' BOSTOt MASS. -S2on3 4.5 Distance in Feet. 1 __ 200. 3 340 0 4 5 0 6 0 6500 ...4,..11 1.,, .,,a.... ,,., •1i1y ... i IF .220 215 i i / / APProx. har bottom . / A•? 0 Approx. e5ent / �� �� so. Grou 5 rface --- // \`—/ �`/ y % 48"P'pe / r�=. CCu% ert-' Water S� f. = 5 = .0022 .o _ ��� / 18.7-1 IonI /onl 1on3 X205 �L 3 0.7 _Ion 1 3lIon 5¢.0022 3.0--- -Ion3 44• 23.2 -/onl _ton/. 3.0�� /on 3 — 3.0 S2on3 43 IL Distance in Feet . 0 1 100 / 2400 3 300 0 4 ...4,..11 1.,, .,,a.... ,,., •1i1y ... Ficl.5. 225 y — 4811pipe /Jz � , A 5..00 , o / Approx. hard bottom . 76 215 0 Approx. e5er�t 1 / �� r� „ 5` Grou 5 face--- // \/ �`I _ 000j 48 pope /' - _ _� �� 557 r 5urfc+ce - Wafer /� � 5 = .0022 LEXINGT N,MASS. / 1B 7' VINE BR00 DISTRICT o$ea� r-/+�' / --- 1' I _lonl 3.0-• — _ /on3 PROFI E OF � � p'O 30o _414 PROPOSED RELOCATED N RTH BRANCH CHANNEL i'�-- --- 22.4' -- /on 3 ' o71 2F VINE BROOK Ion 1 /0173 SCALES- HR.20 FT. T IIx. JULY 1928. - --- 1 [N61 N C£RS BOSTON, MASS. Distance in Feet . l 20 - 200_ 30 14 .0 4- 5 0 6 0 6 0 "-lonl /on I .3.0 Rppr� ;Bed of ' ristiny Brook_ r^ 7� "Circ ula 5�.o � O X g z 1 Q a Culver} --- 5 =.0012 i I I S�•pO3 --j 1 -'Bol m of TS a if ......usee Insfe°d /on cironnel Approx. BOtto 01 -3.0' Yon 3 C .o t Ground Sarfte - -Water 5=.01085 5 =.0012 ed �' 3 .0' on/. 4-'3.0 1 S, Ion �lon3 Distance in Feet . 5 /Approx. hard b0ftrn . 5=.00085 �I, /n/ -Ign3 5,000a5 5=.00085 \ 11.4' --,-Ion / %-Ion 3 `1 /on 3 Z.8 LEXINGT N,MA55. VINE 3RA' D15TRICT PROFIE of SED SOUTH BRAN ^N—° MAIN CHANNEL QF UillEBROOK - SCALE5-HoR. Z00FT.7 IIN. JULY 1928, VENT. 5T.T 11N. .L REVISED SEPT 28 1928 METCALF cf EDDY ENO K4cmms 50STO , MA55. 75 0 M V h � R 2 ro y R CQ 0 "' Approx. hard bottom . APProx. Present' Ground Surfcte Culvert -Water Surface 5=.00085 A>proi ;Bed Of isfinyBrcbk___ ---- — — —� ----- �_---- — 5=.00085 -, I n / 5=.0012 5= i . a Sotto o sed Q" Io I .0012 /on33.0 -.IonI0 12 /on/ 4-30 451 Ion3 i 75" u1aY E-3.0%Ion3 Circe S 003 J du%t %/0,7 3 J .0/ S..0p3`�' ---A_ of 7S pen ohonne! / if used /2sfe�d / Ss 3&O JOn/ 01 in 3.0 o .0 / 5 ./onI -3.0i. i -/on I r in Feet a� Cu/vert 5 o.0012 /on 3- .O Approx. Prese Ground Surfcoe -- tz - - -Water Surface 5=.00085 gy ,0 12 BottO 0 sed ern -- 3 .0'_./on/ 33. Ion l E 30 5/ -5.0'lon3 ._ Ion 3 /4.0 Distancd in Feet � � � ,,i: porox. hard botiom . *%-Ion 7-I �5=.000855=.0008514.8 _,Ion148 / n/ I 1 — 4 Z l lona ,0 1%19 3 1 2.8 2.8 25rPipe .0004 C _ o Q LEXINGTON , M A55 . VINE BRdb D15TRICT PROFI E of SED SOUTH BRAN AND MAIN CHANN SCALES-HOR.200FT.T IIN. JULY 19Z8. VENT. SFT.T IIN. REVISED SEPT. 281928 METCAL E• EDDY ENoi ccws BOSTO ,MASS. W Main Channel East of Massachusetts Avenue $46,685 Allowance for rock -20% 9,337 $56,022 Engineering and Contingencies -20% 11,204 Total 67,226 Grand Total $184,649 The above estimates do not include allowances for future road crossings of the open channels but do include allowances for the crossings at Waltham Street and Vine Brook Road. The following unit prices have been used in preparing these estimates of cost and are; believed to be sufficient to cover the cost of all work. Clearing location, one-third of area $100 per acre Excavation for open channels including disposal of and spreading on swamp and low ground 65c per cu. yd. Loaming, grassing and seeding channel slopes (assuming loam on site) 50c per sq. yd. Excavation for arches at Waltham Street and Vine Brook Road $2.50 per cu. yd. Concrete in arches 30.00 per cu. yd. The covered conduits have been estimated upon the as- sumption that they will be constructed of pre -cast reinforced concrete pipe. The unit prices for different sections of these conduits will be found in the detailed estimates. PROPOSED THROUGH HIGHWAYS In order to make accessible those areas which will become available through drainage and to provide connecting links through the district with existing and contemplated trunk high- ways, it will be necessary to construct about 41/2 miles of through highways. Such highways are indicated on Fig. 7. This arrangement will provide a highway from Massachusetts Avenue near Grant Street to Marrett Road at a location where it will be feasible in the future to extend it southerly to the Beaver Brook Park- way. A connecting link will be provided from Massachusetts Avenue near its junction with Lincoln Street to the above men- tioned location at Marrett Road. The point where the through highway will meet Massachusetts Avenue is such that it may be extended in the future to Bedford Street some distance north of Lexington Green. A through highway is provided from a point a short distance southwest of Vine Brook Road; thence 29 westerly parallel with the existing North Branch of Vine Brook to Muzzey Street; thence southwesterly along Muzzey Street if extended, to a proposed double barreled highway along the pro- posed relocated North Branch open channel; thence northwest- erly and southwesterly curving through proposed park lands and westerly through lands proposed to be developed as resi- dences and now occupied by the old race track to Marrett Road. It is estimated that about 4 miles of these through high- ways will be constructed upon firm ground and about 1/2 mile across soft ground. We have made estimates of cost of the con- struction work required to provide roadways 24 ft. wide with gravelled surfaces. A minimum of about 4 culvert crossings of the proposed open brook channels will be required by the con- struction of .the through highways. We have estimated that these culverts will be of the flat arch masonry type. The estimates of cost of the through highways are as follows: 4 miles of highways in firm ground at $34,000 $136,000 i� mile highway in soft ground at 96,000 48,000 Contingencies and engineering -15% 28,000 Total cost of through highways, exclusive of culverts, land and pavement $212,000 4 arch culverts at $6,000 24,000 Contingencies and engineering -20% 5,000 29,000 Total cost of through highways excluding land and pavement $241,000 If a bituminous macadam pavement is provided for the through highways, it is estimated that the additional cost would be about $163,000. Such pavements for the through highways can probably be postponed for some years and their cost need not be included in the present program of assessments. In the event that the through highway between Massachu- setts Avenue near Grant Street and Marrett Road is extended to the Lexington -Belmont line, its cost, exclusive of land and pavement, will be about $110,000. Such an extension obviously is not a part of the proposed improvement of the Vine Brook district. The following unit prices have been used in the estimates of cost of through highways: Excavation for roadway in firm ground 50c per cu. yd. Excavation for roadway in soft ground 65e per cu. yd. 30 Fir, 7 Gravel fill for roadways hauled from open channel excavations 25c per cu. yd. Rolling road surfaces $2.00 per lin. ft. Bituminous macadam pavement 2.25 per sq. yd. VINE BROOK BETTERMENTS The improvement of the Vine Brook district contemplated by your Board will probably be carried out under authority of Chapter 263 of the Acts of 1926. Section 4 of this act states that assessments for the improvement shall be made according to Chapter 80 of the General Laws. Under Chapter 80, assess- ments may be made by either frontage or area, or both, but no assessment can exceed the amount of the benefit; thus the problem is to apportion the assessments in accordance with the benefit to each individual parcel of land. Drainage Benefits. The entire area within the drainage limit, as shown on the preliminary development map, will re- ceive a certain amount of benefit from the construction of the main drainage channels and conduits. The character of the benefit differs materially for areas in different locations. These areas may be sub -divided into several classes, as follows: Class 1 areas which will receive complete benefit from the construction of the main drainage channels and conduits. This class consists of such areas as are located adjacent to the chan- nels or conduits with their ground surfaces at such elevation that they will not be subject to inconvenience from occasional flooding, and because of their elevation and proximity to the main drains, will not require systems of lateral drains. Class 2 areas which will have nearly complete benefit from the construction of main drainage channels and conduits. This class consists of areas located adjacent to the channels and con- duits, so that they will not require systems of lateral drains, but with their surface elevation such that the streets will be sub- ject to occasional flooding and probably some inconvenience will be experienced from. water entering cellars. Class 3 areas which will have partial benefit, consisting of areas located one half block or more away from the main drain- age channels and conduits, thus requiring systems of lateral drainage, and with their surface elevations such that they will be subject to occasional flooding of streets and the possibility of water entering cellars, but to a less extent than in the case of Class 2 areas. 31 Class 4 areas which will have partial benefit, consisting of those areas which will require or are now provided with lateral drainage systems, but will not be subject to any material incon- venience from flooding. Class 1 areas consist of small, widely separated sections, but for the most part adjacent to areas in Classes 2 and 3. While Class 1 areas will not be subject to flooding, because of the proximity to areas of Classes 2 and 3 and the inconvenience caused by flooding of neighboring highways, the increase in market value of lots in Class 1 areas will probably be no greater than in the case of Classes 2 and 3. We have included in Class 1 certain areas which are adja- cent to the existing open brook channel east of Massachusetts Avenue where, under present conditions, little, if any, flooding is experienced, but inconvenience results from the maintenance of foot and driveway bridges across the brook channel to pri- vate yards. In this location, it is proposed to construct a closed conduit which will permit the abandonment of bridges and the utilization, for yard and driveway purposes, of the areas now occupied by the brook channel. Class 2 areas being adjacent to the main channels will not require lateral drains, but the frequency and duration of flood periods will be greater than will be experienced by Class 3 areas, which will require lateral drainage. Class 4 areas will be the most desirable for residences be- cause of elevation and general freedom from flooding. Also, a considerable proportion, say 2551b or more, can be developed with streets and houses before lateral and main drainage sys- tems are required, whereas scarcely any development can be made of Class 3 areas before the installation of lateral and main drainage systems. Probably the highest class of development within the district will take place in the Class 4 areas. In view of certain developments within the town of Lexington, and one which has already taken place within the Vine Brook district (Highland Avenue), lateral drainage in the form of under- ground conduits to convey storm water from street surfaces, sidewalks and yards, and to prevent flooding of cellars and small depressions, will eventually be required for the Class 4 areas. The development of the district with paved streets, graded lots, and houses will result in a larger proportion of the rain- fall running off and a lesser proportion entering the soil and 32 being absorbed or evaporated than is the case at present. After such development, it is likely that there will be found small depressions which would be subject to periodic flooding in the absence of lateral drainage. The development of the area into streets and blocks, and the subsequent layout and construction of lateral drainage systems will in many cases change the limits of the sub -drainage areas and the locations of the points of discharge from those limits and locations fixed by nature. Legally, areas high in elevation may have the right to dis- charge storm water on to lower lying areas as long as the path of the water is not changed from its natural course, and the owners of such land may have a legal right to do anything to their land whether or not it increases the amount or rate of runoff. It is practically impossible, however, to lay out streets with suitable surfaces, gutters and sidewalks, make suitable street intersections and grade house lots, so that they meet the needs of tenants, without changing the limits of areas tri- butary to natural water courses or changing the locations of the water courses. The development of the high lands may result in three or more times the rate of discharge and amount of water which would be discharged from these lands under natural conditions. Such development of the high lands as well as of the low lands requires more costly brook channels and conduits. Considering the actual benefits without regard to legal rights, insofar as main drainage channels and conduits are con- cerned, we think all areas within the drainage limit should share proportionately in the cost. The required capacity of such channels and conduits is directly proportional to the area served, disregarding minor variations in local conditions such as character of soil, steepness of slope, etc.; thus, 3 acres of high land require about 1 cu. ft. per second of capacity in the main channels and conduits, which is the provision made for 3 acres of low land. The total drainage area is about 984 acres. The net area within, the drainage limits excluding areas which will be occu- pied by streets and brook channels is about 818 acres. Included in this are the Municipal Building lot, the playground near Lin- coln Street, the school yard and parts of two small parks along Massachusetts Avenue, which should probably be considered as purely Town property, and their proportionate part of the cost of drainage should consequently be met from Town funds. 33 These areas aggregate 20.7 acres or about 2.53% of the net amount is the average assessment per acre for Class 3 areas, drainage area. twice this amount or $30.20 is the average assessment for Class The estimated cost of main drainage channels and conduits 2 areas and three times $15.10 or $45.30 is the average assess - is $185,000. Of this, 2.537o or approximately $4,700 would be 4 ment per acre for Class 1 areas. These average assessments borne by the Town. reduced to the sq. ft. basis are as follows: Considerable areas within the district will be reserved for Class 1 areas $0.001040 parks aggregating about 99.4 acres. The share of the cost of Class 2 areas 0.000693 drainage which would be assessed on these park lands if they Class 3 areas 0.000347 were to be used for residences would be $22,500. This amount Through Highway Benefits. The benefits which will be de - can be assessed upon the areas receiving park benefits. rived from the construction of through highways in the Vine The assessment for main drainage channels and conduits Brook District will differ widely. The areas within the district based on the estimated cost would be $0.00520 per sq. ft. of may be sub -divided into three general classes, as follows: area not occupied by parks, highways or brook channels. Class 1—areas which will receive complete benefit consist - Park Benefits. The areas which will be reserved for parks ing of lands abutting on the through highways and not will benefit nearby residential land in varying proportions, de- now accessible from present highways. pending upon the distance from the individual parcels of land Class 2—areas which will receive nearly complete benefit, to the parks. It is a question of policy as t0 just how far from consisting of areas made accessible by the through high - a park, land should be assessed. It seems reasonable to us ways, but which will require sub -division roads. Class 3—areas which will receive only partial benefit, con - that all land within a distance of 2,000 ft. of the park limits sisting of those areas which are now or can be made should bear a share of the drainage cost attributable to the accessible from existing roads and may or may not re - parks. Such area may be subdivided into three classes as quire sub -division roads, but will be made more easily follows. accessible by the construction of the through highways. Class 1— areas which front on streets bordering on, or 1't is very difficult to fix upon equitable definite ratios for adjacent to, the park areas. the benefits from through highways. It is very evident that Class 2 —areas lying beyond Class 1 areas and within 1,000 Classes 1 and 2 receive a very substantial benefit. Likewise, ft. of the park limits. it is evident that areas outside of these classes receive some Class 3—areas lying between 1,000 and 2,000 ft. from the benefit from the construction of the through highways. The park limits. Town as a whole also will receive a considerable benefit from It is largely a matter of judgment as to the proportions these highways. It is our judgment that the average benefit of benefits received by the three classes. Without going into ratios of the three classes should be about as follows: an elaborate study to determine the benefit according to a pro- gression foil each 100 ft. zone, or perhaps less, we think it isBenefit Average Area— Ratio Acres reasonable to fix the average ratios of betterment between the Class 1—areas abutting on through highways 10 69. three classes as follows: Class 2—areas made accessible by Average Area— through highways 7 46.9 Benefit Rano Acres Class 1 (adjacent areas) 3 66.5 Class 3 — areas made more easily access - Class 2 (1,000 ft. zone) 2 379.4 ible by through highways 3 247. Class 3 (2,000 ft. zone) 1 553. It is possible that the benefit should be extended to a Multiplying each area by its corresponding average benefit larger area, but it seems to us that for the purposes of this ratio, the total cost of park drainage is to be divided into report, it will be satisfactory to assume that the additional 1491.3 units. The estimated amount of the drainage cost at- benefits outside of the three classes described above will be tributable to the park areas, $22,500, divided by 1491.3 give borne by the Town. It is our judgment that the Town's share $15.10 as the average amount of one unit of assessment. This of the cost of through highways should be about 20%. 34 35 The estimated cost of construction of through highway gravelled roads is $241,000. The Town's share of this cost (20%) would be $48,200, leaving $192,800 to be assessed upon Classes 1„ 2 and 3. Multiplying the areas of the individual classes by the cor- responding average benefit ratio gives 1,759.3 assessment units. Dividing the $192,800 by 1,759.3 gives $109.50 as the amount of one assessment unit. Class 1 areas would be assessed 10 units per acre or $1,095. Class 2 areas would be assessed 7 units per acre of $766.50. Class 3 areas would be assessed 3 units per acre or $328.50. These assessments reduced to the sq. ft. basis are as follows: Class 1 areas $0.02513 Class 2 areas 0.01760 Class 3 areas 0.00754 The maximum assessment on any single parcel of land for drainage, parks and through highways would be $0.03137 per sq. ft. This assessment would apply only on those relatively small areas abutting on the proposed through highways. The maps, Figs. 8, 9 and 10, show the different classes of areas for each benefit as outlined above. In order to deter- mine what the approximate assessment per square foot would be on any given piece of land within the district, it is only necessary to consult the individual maps and add the proposed assessments for the area under consideration. Obviously, the assessments must be levied on the basis of the actual cost. Before any assessments are levied, it will be necessary to make accurate surveys to determine the limits of the drainage area and of the different classes of areas bene- fitted. The Town will have to acquire the lands to be used for brook channels, streets and public parks. No allowances have been made in the estimates of cost for the purchase of such lands. It seems reasonable to expect that for the most part these lands will be donated to the Town. Any lands which do not become the property of the Town for park purposes, high- ways or brook channels should be assessed their proportionate shares for the benefits. Respectfully submitted JWR:CH 36 METCALF & EDDY By Almon L. Fales LEXINGTON, MASS. VINE BROOK DISTRICT DRAINAGE BENEFIT MAP SCALE IN FEET(APPROX.) 0 1000 Z000 SEPT, 1928. MBTCALF o- lODY 6NB1N![RS BOSTON, MASS. - L66EN0 - 5treeds and Roads laid aLri. Lid 0� Proposed Highways agl 9� E.1 Proposed and ExivI inq Parks .e1n/LI a Proposed Open Channels D. I I I�Opy Proposed Covered Channels in Roadway Ilrl Proposed Covered Channels h' I I A EX;SBrook or Ditches T. Class l,! 0052 per5g. H. Rssesememl 16 i MZP Class 3,0.0052 tajZ C10e9440.0052 1%I I >9 I I I� I I �� ♦• FIG. 8 1 LEXINGTON, MASS. VINE BROOK DISTRICT I� i i I I I Igepglly 5t.1 � PARK BENEFIT MAP SCALL IN FELT (APRROX.) I I I O 0 1000 2000 I LtAfAYC SEPT. 1920. METCALF V EDW LN B05T0N14� EA M 95.LEGEND t / s = 3lreeis and Roads laid oUfI I I I I �� Proposed High vvaYsi67/, /,,'`t• % %/ / P j' may., Proposed and Exisdng Parks Proposed Open Channels / 9 Proposed Corered Channels in Xoadwoy Proposed Covered Channels �- Existing Brook or DHches Ir1111 j E•SS Class ; 0!001068 per sq. Ff ,9sseesmenf Z17 Closs 2 0.0007/2 Close 3,9.000356/10 1„ to / /GEx1NOrON - y ' / C 9 � I //�� � I /QARRLTT IR�'. � � .: / '1�Y'• /'YV � ,�/ FIG.9 F'iG. 10 Estimate of Construction Cost of North Branch Channel W. end track to E. end track 1300 ft. of 48 -in. pipe at $12.40 = $160100 1- 7.5 M.H. = 100 E. end track to S. end swamp 500 ft. of 42-in.pipe at $14.80 = 7,400 1 - 10.5' M.H. = 130 450 ft. of 48 -in. Pipe at $12.10 = 5,440 1 - 9' M.H. = 115 Sta. 43 + 0 to 41 + 0 200 ft. open channel 697 cu. yd. excavation at $0.65 = 471 sq. yd. slopes at 0.50 = Sta. 41 + 0 to 30 + 50 1050 ft. open channel 8,880 cu. yd. excavation at 0.65 = 3,720 sq. yd. slopes at 0.50 = Sta. 30 + 50 to 17 + 0 1350 ft. open channel 7,285 cu. yd. excavation at 0.65 = 3,600 sq. yd. slopes at 0.50 = Sta. 17+0 to7+40 960 ft. open channel.3,090 cu. yd. excavation at 0.65 = 1,920 sq. yd. slopes at 0.50 = Sta. 7 + 40 to 6 + 80 60 ft. Waltham St. culvert 560 cu. yd. excavation at 2.50 = 111 cu. yd. concrete at 30.00 = Paving invert 60' at $5.00 per lin. ft = Sta. 6 + 80 to 2 + 50 430 ft. open channel 1,300 cu. yd. excavation at 0.65 = 836 sq. yd. slopes at 0.50 = Sta. 2+50 too+0 250 ft. open channel 572 cu. yd. excavation at 0.65 = 417 sq. yd. slopes at 0.50 = Clearing 1.4 acres at $100 per acre = Estimate of Construction Cost of South Branch Channel 450 235 5,725 1,860 4,740 1,800 2,010 960 1,400 3,330 300 845 420 372 208 140 M. Middle St. to Sta. 48 + 00 700 ft. of 21 -in. pipe ay. cut 3.0 at $4.20 = $2,940 Sta. 48 + 0 to 40 + 80 720 ft. of open channel 1,680 cu. yd. excavation at $0.65 = 1,090 1,250 sq. yd. slopes at 0.50 = 625 37 Sta. 40 + 80 to 30 + 50 1030 ft. of open channel 3,030 cu. yd, excavation at 0.65 = 1,970 1,820 sq. yd. slopes at 0.50 = 910 Sta. 30 + 50 to 22 + 80 770 ft. open channel ,. 2,845 cu. yd. excavation at 0.65 = 17850 April 9, 1930 1,575 sq. yd. slopes at 0.50 = 790 Sta. 22 + 80 to 20 + 80 Town Planning Board, 200 ft. open channel Lexington, Mass. 417 cu. yd. excavation at 0.65 = 270 358 sq. yd. slopes at 0.50 = 180 Attention: Mr. F. L. Emery, Chairman. Clearing 7.8 acres at $100 = 780 Gentlemen: $119405 On April 2, Mr. Raymond, in company with Mr. Cosgrove, Estimate of Construction Cost of examined the channel of Vine Brook in Lexington downstream from Sheridan Street to ascertain the extent to which flooding Main Channel conditions would be aggravated as a result of the construction Sta. 20 + 80 to 7 + 00 of the proposed Vine Brook conduit between Hayes Lane and 1380,ft. open channel Vine Brook Road. 7,725 cu. yd. excavation at $0.65 = $5,020 2,990 sq. yd. slopes at 0.50 = 1,495 There has been periodic flooding of low lands along the Sta. 7 +0 to 0 + 0 brook between Hayes Lane and East Street due to the slight 700 ft. open channel fall, the small size of the brook channel and the limited capacity 4,760 cu. yd. excavation at 0.65 = 39100 of the East Street culvert. 1,663 sq. yd. slopes at 0.50 = 830 Sta. 0 + o to S. L. Massachusetts Avenue No appreciable damage results from flooding under present (60 lin. ft. for culvert not included) conditions as the land subject to flooding is unimproved. 490 ft. open channel 5,440 cu. yd. excavation at 0.65 = 3,540 Flooding as a result of the proposed construction would 1,510 sq. yd. slopes at 0.50 = 755 not be measurably increased and would at worst be a matter Vine Brook Road culvert of only a few inches in height greater and a few hours longer 60 ft. long duration. 765 cu. yd. excavation at 2.50 = 1,910 183 cu. yd, concrete at 30.00 = 5,485 Probably any increase can be compensated for by substitut- Paving invert 60t at $5.00 per lin, ft. = 300 ing two culvert pipes about 5 ft. in size beneath East Street in S. L. Massachusetts Avenue to Headwall place of the present stone culvert and keeping the brook chan- 1270 ft. of 75 -in. pipe ay. cut 13.5 ft at 35.40 = 44,850 nel free from bushes and debris by annual clearing. Headwall -380 ft. open channel 822 cu. yd. excavation at 0.65 = 535 Very truly yours, 430 sq. yd. slopes at 0.50 = 215 —to Hayes Lane METCALF & EDDY, 400 ft open channel 1,330 cu. yd. excavation at 0.65 = 865 By Almon L. Fales 300 sq. yd. slopes at 0.50 = 150 Clearing 0.7 acre at $100 per acre = 70 $69,120 88 1 30 April 15, 1930 Town Planning Board, Lexington, Mass. Attention: Mr. F. L. Emery, Chairman. Gentlemen: Regarding flooding along lower Vine Brook downstream from Sheridan Street as a result of the construction of the proposed conduit between Hayes Lane and Vine Brook Road and the channels for the main brook and the South Branch we are of the opinion that the increase in flooding will be very slight. Construction of the main channel south of Vine Brook Road and the South Branch channel will not measurably in- crease the flood runoff and conditions on lower Vine Brook will be as stated in our letter of April 9, 1930, to wit: Flooding as a result of the construction of the proposed main brook conduit and open channel and the South Branch channel will not be measurably increased, at worst being a matter of a few inches greater height and a few hours longer duration. Such increase can be compensated for by installing two culvert pipes about 5 ft. in size beneath East Street in place of the present culvert and by keeping the brook channel free from bushes and debris by annual clearing. Very truly yours, METCALF & EDDY, By Almon L. Fales 40 THE HADLEY FRESS� INC. LEBINOTONp MASS.