HomeMy WebLinkAbout1870-9aJunction S
NOTES'
I. Junction Structure No. 2 is to he used when OZ. of R Is greater than I/2
the I.D. of D, or f3 Is greater than 24 Inches. B shall not jxceed 3/4 D,
or 39 Inches.
_ _ N_ � ti
NOTE: No more thou one Opening
shall be mode in one section of pipe.
N
► - - ' - -- - - " ♦• 2 • Volvo 01" A, B,C and Dae Shown or project drawings. Elevation"R" and
/ Elevation S ore shown when required per Note 12
1 ,' A 3. Elevation S applies of k%W-9 wall of shnrtlw..
1 �•�= �`• /� of structure 4. Breakout limits shelf be determined as fellows:
r! -�•r• � �� ` Upstream limn- At the intersection of list oulgide of the spur well
r Mtn.-• -. , 11 �f, i with the main line Pipe well
ICencteh
/
R
.' Tie bets /�
3'16"SI.F..
.� /
/
` G; -G bets "
\ ,
04-6 O.C.
TABLE OF VALUES FOR T
B
T
12`
5 "
storm drain, value 0 %hall refer 19 the cigar %pan o1 the arch.
Reinforcing %reel shall be cul and bent Into Junction Structure In the come
1-
N I J _ _ _w t 1Tis bort ,
� ►-- . _ -• - t
N 3-Ilt OC
16
•
21
s
24
S _
2.?"S
'/ �� / ,
,/i
Round ,tG I
30
6
33
6
36 14
6
be Provided in morn Irne far lutute con%Iruclion 01 int*1 pope.
d tenA•r tinct
Downstream Limit - 6 inches dOwnslttam of the inttrSection of the
spur wall with the main lone Pipe wall.
The opening shall be rec►angular, cut normal to pope %urfece and
wrlhoul damaging reinforcing steel. If a joint in the main line pipe
tails within the limits Of the Concrete Crddlt• provide a ConCrelt
encasement one foot above the top of the main line pope to the
limits of the credit.
S The transverse rtinlorcgmtnl in Pipe shall be cut 01 center of opening
and bent into lop and bottom slabs of spur.
6 The main lint pipe shall be cradled and gncosed in 1: 3'- S comets mit,
extending longitudinally 12 inches beyond the limits of breakout ISeo Note
41; and transversely o distance of H on each side of the centerline of
pipe. H r '/t 0. D. of pipe t 3 inch*% minimum.
Cradle may be omilled on side opposite Ialatal Inlet when constructed
in connection with existing %Corm drain.
\ 7. Reinforcing steel %hall be per 2 - 0 111, one placed I'/e inchas cltor train
face at concrete, unlet% otherwise shown.
% Y B E and F bars shall be carried to a point not le%% then J distance from
rc.nlerline. J • %it 0 + 6 Inches.
-30
Mon. PLAN 9 Concrete slr*ngth %hell be 3,000 psi of 28 Joys excepl as Otherwise
t I I I
'MAIN LINE STORM ORAL
R C Pope or reinforced
• rrrenelilhic etch
~� -Tie berg
0 is OC
G bets-' e+ •', � •'s.:
T- t •--4--- -T
SECTION M -M
~'� w REVISIONS
A the rr,q 611 Nstelrlral
• J-11 ii �rviaw/ /Mlle >' «nr
K, e. a%bI Advie /J.
awaw w APdW" 411i'nil" "C `rL #,WIN•
V.A.A. .h 0mo.y•
& "on Ml[ le
.,n,.r•M w
C •.M.
I // ,S Allrvited herb I
fAIL "X'- tjUNGTIOri
T.
SSE Gr�i0.b1l�lG pl.lW Fro1Z
45. 47- P. L.
rAKK,AY
=llsr CZIR,& e
tL2• 'I- 3 f 1-.
IL °�'"- FAiZKWAY JuNcTioNK Li CTI -14K r-
NoTdi5p
e a- , 'o V -
•
8-,
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SEE GZnDtNG Pi.At1 Fob •2
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noted.
10 Floor of structure %hall be st*el-Irowgltd 10 %Pring line
11 When Junction Structure No 2 Is specified with reinforced monolilhic arch
, Reinforcing Steel
r
storm drain, value 0 %hall refer 19 the cigar %pan o1 the arch.
Reinforcing %reel shall be cul and bent Into Junction Structure In the come
1-
N I J _ _ _w t 1Tis bort ,
� ►-- . _ -• - t
N 3-Ilt OC
mons tr at for pipe Concrete Cradle under reinforced monolllhit arch is
1 -
« 1 �. �� e . •: ; .:
3 �.
not r squired.
• m 12 When Elevation Wand Elevation "S"ore not shown on project drawing%, inlet
line other 1110n
_
Min
. �.:...
f" ��
1 ,�: ► «I, _ ,
pipe %poll enter main line radially When Intel pips enters morn
radially, Elevolion "S" shall be shown on project drawings, and inlet pipe shall
'/ �� / ,
,/i
Round ,tG I
be told on a sit00%hi grade from Elevation S to catch basin or grade break
drawings only when stub is to
I r I A bets bats o�
In line f legation R" %hall be shown on project
Spring lint-
Edges 1*3_3.0.C"- ' �� t
-
be Provided in morn Irne far lutute con%Iruclion 01 int*1 pope.
d tenA•r tinct
1 ;------� 7 1 I
IElev-
i bot 10 - - -
13 SletiOn* spedliN on drewin/s apply o1 the intersection
A lint staliens for cakh rosin CWW$Kter
- A ins lotetoh, e><oa►1
�.;��kv_S �___
r, -. %
I '� o •3 -;"OC I
•
of W41114 and
Pipe �1► r ;news scall of sltuchme.
®N. Use Transition Structure No. 3, Std. Owl. 2-0106, whlw A.C. pipe it
Concrtle-.
. , x , -
e s,; % -
Yt*d let mainline.
COUNTY
e �.- y ..e ;
'•'
LOS ANc'/ELES
FLOOD CONTROL, DISTRICT
--N-- -1 t
I�•-1;
— —�_ --- — —
�
� 1 3.5 Concrete
`undisturbed
JUNCTION STRUCTURE
earth'
NO. 2
SECTION "L- Z
M. twy NI..1• t"a.Mt"
H.•.4w t-4 •w tt� •-
---
cwN• ,rtsa.x�ti
kAl[ QA�I
PWG. NO. 2-0112
SUrERSEOES ORAWING Of THE SAME NUMBER IDATE0 MAY. 1939
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