HomeMy WebLinkAboutSWP5002046.3r
n
E
F
G
y
5
4
3
2
1
EXCAVATE APPROX 60' OF 18" SD. RELAY
PIPE TO MH-2 BY DEFLECTING JOINTS.
(ALTERNATE METHOD: USE 22 1 /2'
SPECIAL FITTING AS SHOWN.)
\ \ / APPROXIMATE LOCATION OF
EXISTING 12" FORCE MAINS
TIMBER BULKHEAD ,
EXCAVATE APPROX 28'
OF 10 SD. RELAY '
PIPE TO MH-2 USING '
INv ►�. 5q
(3) 11 1 /4' BENDS
�
SEE DETAIL AG3 96„EFFLUE�
INV 101.00
- - - - - - -- - - - - -
,INV 113.0
_ 2
-----LW 115.43
6
, 120" OU TFALL
/ EFFLUENT JUNCTION STRUCTURE
PART PLAN F,
SCALE: NO
oA
SCALP -
EL 101.0
GROUT COVER
AROUND
CIRCUMFERENCE
!
4"
!
3'-8
i
GENERAL NOTES:
1. AS BUILT CONDITIONS AT THE STRUCTURE ARE UNKOWN.
MODIFICATIONS SHOWN ARE SCHEMATIC IN NATURE. THE
CONTRACTOR SHALL MAKE MODIFICATIONS AS NECESSARY
TO ACHIEVE THE FOLLOWING:
a. RE-ROUTE 10" AND 18" STORMWATER PIPES TO MH-2.
b. MAKE 30" DI CONNECTION BETWEEN MANHOLES, INVERT AT
113.00 FLAP GATE AT MH-1.
c. PLUG HOLE IN BOTTOM OF MH-2.
d. MAKE 18" CONNECTION WITH SD TO STORMWATER PS.
KEY NOTES:
O SEAL 3' DIAMETER OPENING FOR 25 FEET OF WATER PRESSURE
FROM EITHER DIRECTION. SEE DETAIL A.
�2 BREAK OUT EXISTING MANHOLE(S) TO INSTALL PIPE. GROUT PIPE
IN PLACE.
O 30" FLAP VALVE WITH ANTI -LOCKING BAR, RESILIENT NEOPRENE
SEATS, TYPE 304 SS HINGE PINS. RODNEY HUNT SERIES FV-AC
OR EQUAL.
O 30" DUCTILE IRON PIPE FLANGED x PLAIN END, INVERT 113.00.
O PLUG OPENINGS OF EXISTING 10" AND 18" STORMWATER PIPES.
O INSTALL STOP ON MANHOLE WALL TO PREVENT GATE FROM
JAMING IN THE FULL OPEN POSITION.
�7 PROVIDE (12) EQUALLY SPACED "Z" CLAMPS
AND EXPANSION ANCHORS.
EXISTING 6' DIA MANHOLE
(MH-2)
I
I
!
Z" THICK TOP OF EFFLUENT
1
/ JUNCTION STRUCTURE
SS PLATE _—_f�1
wr
z_j
o c
0 0
o�
Z U
_ U
U - Z UQ
Li
MANHOLE OPENING SEAL zNJ Lj
A Cdn�s�c-Xo as 6u� l� 14�a i (a 61c. U
DETAIL G3 z
Q—
SCALE: NO SCALE
40 20460
I
1 /2" THICK
NEOPRENE GASKET
Brown and Caldwell
HC Consultants
Seattle, Washington
DATUM NOTE:
ELEVATION 100.00 EQUALS
MEAN SEA LEVEL, 1929
U.S.C. & G.S.(ADJUSTED 1947)
COORDINATES ARE BASED ON
LOCAL PLANT GRID
N
� �
7
�°
DESIGNED:
JP/GN
'I
�' METRO Municipality of Metropolitan Seattle
�'
DATE:
MAR 1992
DRAWN:
SEACAD
CHECKED:
GRH
SCALE:
NO SCALE
METROS REGIONAL TREATMENT PLANT IN RENTON
ENLARGEMENT IIIA
STORMWATER PUMPING STATION
PROPOSED STORMWATER MODS AT
EFF JUNCTION STRUCTURE M H
FILE NO:
RECOMMENDED:
DRAWING NO:
G3
CONTRAC
W�/T""��NO: 37-91
WPC 2$
NO:
REVISION
BY
DATE
APPROVED:
SHEET N0: OF
,
EXPIRES 5/27
.-k .. ,
5
4
m
01FILM n