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3
<br />j t 1
<br />.3 Limit of Excavat {on i Limi, of Excavation = 3r,o„
<br />i ;, ;' ( � Narrow Tr Limit - - P :.f � � � : Narrow Trenc Lrmi� -
<br />��.._._..
<br />Lirrrit of Pxcavatiorl
<br />TOP of concrete if trench
<br />Com "acted I c
<br />p
<br />extends beyano' L or 3
<br />1
<br />Selee ted Ref; f, N i.� x - - -
<br />h
<br />v fi
<br />_
<br />PI AS � ca a vn
<br />A.ST!✓I Stondara �treny9'h r v` -
<br />cla sewer pipe
<br />0/ 4..57,,0 Extra Strenglh Nar Tcencti Zimit '
<br />'..-
<br />C -13 - 44 T �. % -:: _ c /ay sewer i e C Z00 -07
<br />e j
<br />ab v - - --
<br />a c /� R S'heCtn7 , rf used /s fo be
<br />_ < r � h� etrna it used fo be ; &ff in lace � _,___ _ _ �� � �
<br />P I r ; .
<br />sewer 1 a g avel env & / oe
<br />s Ft. t left / -, place from bottom :f i
<br />A below a line :1.� lower
<br />o r ,
<br />f frerchto e %vcrfionof
<br />.than or; rna/ ground surface `
<br />ti ,..ta :pf 7 e. and w/11 be a/d
<br />d . I for betril, th se Irm1t ( I
<br />g ",q.S,rM Extra Strength
<br />{, c
<br />9
<br />J9 1✓irn, /9 Mrrr 7 �t I der It�rn /3: p
<br />lY, , ,,..,' f <, ,..� - i t
<br />under �,; t. _ 1 _ la Se bluer pr e. C - �D� � �7 T
<br />l�arro✓v Trwn_h Lirnrt firm rn�? terra! sheetin
<br />y P !� �
<br />Top of:cor/crete if' trench C /assBconcrete to bE / .
<br />�/f used is to be r°ernoveo
<br />..
<br />;
<br />extends be ono 4in� /t of'
<br />4 q Jaced o a r 3
<br />y 4 0 p n o aga,nst
<br />, Qqd S aC& iroir?eo
<br />/...C: ,.... /".
<br />Excavation and /sturbed t /
<br />_ , : , j � � - . ..; tl ma er/a or refs
<br />I � - - -- � �. - ' ----�- , /led with car'?
<br />ry w
<br />/, �, Sh fO b-c� v o +� ...._,...- v: ,Y ,:v ., `, l' jr: c '., ✓r5 r o.5,
<br />`S eG-'t //? J7 U1i w1d�h ' ,. ., /`�. a tr
<br />7 ' =, o ' ` - - >_._. -n' " �9 �.;�,� > {. screenec/`. rave0.be %ti ✓t
<br />, ,' �,. , � �. <_ ° ,� c c: a �c� � 4> c I 9
<br />of t re n ch. �_ -! , -toed f e
<br />p f hP,enveJoe,
<br />- »--= 1�'A.S T.,�t�. £xrra S /�rengfl�
<br />� 1v s�we i
<br />_ OD - T M1n,
<br />r ,1 ,
<br />. , C -S /c- ,. . A J
<br />,.,., . ;3'� ,
<br />t
<br />.
<br />_, (fnderdr < >it7 , if usec'7`
<br />u
<br />„�;; ;.. - j `\�....,: �j :,; /IndPro'ra .:.yfS ut �,',; -.,� Un0'�r'J.rs7rn rf used n•�'.,.:;
<br />19 p ,r, , /7. ,. l cd
<br />.. `''oo ,. 7, a� �� c r
<br />1 Screened grovel onve /ape Screened drove!
<br />»fit Screened 7ro ve
<br />TYPICAL SECTION 21" SEWER TYPICAL `SECTION 21 SEWER TYPICAL SECTION 8 SEWER STA. I I t 46 `TO 18 +06 ± 1N FIRM GROUND +
<br />WITH ..�JNCPETE 'CRADLE STA. 3-5 + 47 TO 40 27-
<br />3' 117. :4 Underdrain / USed �
<br />orovel
<br />Note.
<br />±
<br />„ a > r „3,1Iu,. STA. 0+ 02 TO 11 146 IN FIRtA GROUND
<br />. ! a t.. i Screened i
<br />�.'
<br />'
<br />The sewer renches ma be excavated anlider "than the
<br />r .,ro vel refill bolo w � - -- -_ V
<br />-� - - -- -- —,',� ft Limit of £ncavatlon abov th
<br />normal Grade _ ! ,;
<br />e e /me of Nar row Tr &nc/7 L/1nrf:
<br />Pelovv the line of Narrow Trench Limit
<br />not be excavated outside t "the frenchshou /o'
<br />Nrn. inoleria/ T
<br />e „
<br />/9. ,:, - ; ; , -• . / t� r' " he LiY77it or £xca:vaf Ion: In
<br />- ,.. ... , , ........ - ;: : Cas. S '
<br />U � ^Q
<br />removed outside this limit b & /ow the line of
<br />U
<br />N r i
<br />o <a r� r to tra/ f 1. varies _ . _, . ar ow n ee °
<br />r/r ,, na r; tch Limit th
<br />, , .. '. � ....: -:.. - :: � .._ it � Contractor will b$ r& rlireCl f0 " r0(/ide
<br />! C'
<br />selected b 9 P
<br />Se ect d .cefilL a bove f a concrefe era
<br />_�_ _ _ f 1 � ., r .,.. i . • -. .. ..I , d/e `of C /ass' B concre e for the full width o f e'
<br />cam let &d sewer l Trench el P h
<br />} Selected Refili
<br />•, P b the top of the prpc�, in place of the ser &erred
<br />ravel a17ve10 e or C1a 1
<br />r3 Io,, f
<br />v ” ss /3 concrer & 1 rn place of Compact.
<br />Selected Ref'i1/ br the full width of the trench below the tap
<br />. ,, of e pipe as indicated' on ff7& dna i
<br />� n w nqs, rh /s concrete shall
<br />TYPICAL SECTION 12 SEWER be Laced at th &Contractor' &x
<br />_ P s pens& excepting the;coner,iete
<br />crodle o t
<br />r p Sheet/n f d' k 1 t be aid for urrd It
<br />9 r use fob e /effin place 1,6 AS7,-M Extra Streh fh t P er em 7a' be1 weep Sta. OtO�- jand
<br />I UFT �R�U _ I belowa.11ne'/.5 lower ' that 9 Y-46 2,
<br />clay sewer pipe .0
<br />ZOD-44T-
<br />on Ina/ rokrnd "surfd ce, z i ; It trench material is loosened or beta /
<br />9 9 mes oosened
<br />outside the Lrmrf of Excavation below / ?
<br />::.3 jr t he '
<br />Nc2rro.w Trench
<br />,f mtt , it shall be removed and concrete trod/
<br />, e or concrete
<br />cortnr over pile "bents ;� —= ! ! t fill shah be loced as s ,a
<br />t Led above.
<br />5
<br />,
<br />" class A,
<br />p
<br />`Lunn of Exca ior7 -
<br />J ✓Giro T rench Lrmrt ! „ i I; ; eoncret
<br />....:: . .. ..... ,_:_ .mil__
<br />�f�,.' ! lz Cover r
<br />t
<br />c ntrnuous, lap
<br />T of concrete /f trench I
<br />P _ 1 It
<br />o .—
<br />y'a �, ,a
<br />&xtend be . n 1 t of -- - .., "_- 2/ ,AS,T,M Exra Str &n JF, -
<br />. s c/o d Lim --rL -� " ; , ; i=- q , • �,:,a _ � n-
<br />r a s i -` m
<br />c1a Sevver�' Yoe / C 240.94T
<br />�l P� ,,. l /
<br />y !Ya o Trench Lrm/t _
<br />9 P/ar kin s i ed
<br />u y A,k
<br />td
<br />5 to Ca
<br />8 8x3 -0 caps
<br />;Screened t ays/ envelope I o f ,
<br />.: q P ;
<br />11 1✓/r 1. l9 M/ri: / . 3
<br />x i D
<br />ins
<br />P.
<br />t , , .,,5„ .1.. �.o ... x,•.
<br />� ,' A.S.TM fktr o Sf
<br />r2n�2th
<br />Ir , , , , ,,,, .. _ !� � �+ , , • . .,.
<br />r, S e r
<br />_, r < , c - cre neo' 9
<br />cl Giver pipe C ?00 447
<br />y : . ; r. t p ::Uncle drain if us Pd
<br />f
<br />I
<br />- rat .:. . ,., :. .- . <. _.— `--= .�__- -f —'�- — a i s . , p , .... -: � ...x. ✓? , j t _:1 ;. � , "3.
<br />1 / frrn, !noter/aJ hoer
<br />r � ,I � ✓ ° U�... -» f , 4, .C� � r. ,x 1 if i ?;:
<br />,f used rs to bZ renrGVed acrd i. 0 ,-;' �I , ' ,':: {,, ;,_,' • ,. �, ° `'a: :. i. _.; •' _
<br />, pile
<br />.,.
<br />space rmrnedlCltE.lurefrllPa _.. <? o s o v Cn. - „ .;: ;...,,} ! ,{ 1,:177 ' n:'
<br />- ` - J a to creaned a o
<br />: ., ° .._, ,.. '• Wif ! cOrTr/; C d .S. ! ,O o o 31,
<br />!".., _. p O
<br />:OpO o .- 9„ o. Uo op6o0`oC ,i ` t1 3 i
<br />e p
<br />O t or,. a
<br />p 1 3
<br />,
<br />�nve e.
<br />lo N�
<br />P ik C t c.G?. •i 'i 4 y
<br />,
<br />°
<br />LEXINGTO MASS.
<br />ve
<br />1 + tr> ,� . {,_ - .. - - -- -Un r it ' VINE
<br />D� �� GO derdra n, ; uUed; BROOK SEWER
<br />r
<br />y� �-� ' s ' _:" � lieu ��: � , ,
<br />Screened , r: >/e/
<br />l/ 3 ` i„ t
<br />rr uJeo ' ( M 1 � ;,
<br />` 'Gravel ei1/ below
<br />r SEWER SECTIONS
<br />avyj norma drsrde e TYPICAL SECTION 12" SEWER
<br />1.
<br />/9 "1✓Ier, °o , ,; ON .P ILE FOUhiDATION
<br />°�
<br />SCALE- 1`= 1' -0`
<br />Firm materi / E /. Val i "es APPROVED' UARY 1948
<br />JAN
<br />DRAWN 'B ,' ; FOR METCALF & EDDY NGINEERS .' METCALF & ED 20333
<br />TRACED TYPICAL E ( � TION 21" SEWED DY
<br />}
<br />BO d
<br />„ � EN GINEERS
<br />'+ R.a Iae 9 OSTON, MASS.
<br />GHFCK ..: STA, 11 t 46 TO ) +06'- IN SOFT GROUND
<br />'R OF. P�a'OF. ENGR. MASS. NO. 70� GATE
<br />k R ,
<br />w TWA PR JECT 19 1�'i98 fi
<br />1 ' x
<br />/ .,. ',. ONTRRCT A SHEET 4 OF 4
<br />ma . ,_' . '
<br />
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