HomeMy Public PortalAboutNewInsideDroponExistingManholeforSewers8to12NOTE: FOR 1 DROP B
PIPE ONLY.
C
NOTES:
1) NEW INSIDE DROP ON EXISTING MANHOLE REQUIRES THAT THE FLOWLINE OF THE NEW DROP PIPE ELBOW BE
CONSTRUCTED AT THE SAME ELEVATION AS THE SPRINGLINE OF THE EXISTING SEWER MAIN AT THE CENTER
OF THE EXISTING MANHOLE.
2) THE MINIMUM INSIDE DIAMETER FOR THE BASE AND RISER SECTIONS SHALL BE 42 INCHES.
3) INSTALL DROP BOWL "A" (MFR. RELINER—DURAN INC. OR EQUAL). ATTACH BOWL DIRECTLY UNDER INCOMING
PIPE WITH 1" CLEARANCE USING TWO (2) 3/8"x 3" STAINLESS STEEL BOLTS WITH APPROVED ANCHORS &
MASTIC.
4) IF EXCAVATED SPACE OUTSIDE OF MANHOLE WALL EXCEEDS ONE FOOT, PROVIDE SIX INCHES OF
CLASS "A" CONCRETE ENCASEMENT ON INCOMING LINE FROM WALL OF MANHOLE TO A MINIMUM OF TWO
FEET INTO UNDISTURBED EARTH WITH A MINIMUM OF 4—#4 REBARS FOR LENGTH OF ENCASEMENT OR INSTALL
ONE (1) LENGTH OF D.I.P. FROM MANHOLE INTO UNDISTURBED EARTH.
APPROVED PATENTED COMPRES—
SION TYPE JOINT FOR PRECAST
MANHOLE AND WATER STOP FOR
BRICK MANHOLE.
DROP BOWL "A"
WITH HOOD.
6" DROP PIPE FOR
8",10" AND 12" LINES.
1% MAX.
SLOPE
"FLARED —LEG BRACK—IT" (D02 OR EQUAL) ATTACHED WITH
3/8"x 3" STAINLESS STEEL BOLT WITH APPROVED ANCHOR.
USE 3/4" STAINLESS STEEL BAND, MINIMUM 3 BANDS, MAXI—
MUM 3' SPACING. (SEE NOTE 3)
I--► g
SECTION C-C
EXISTING
MANHOL
e
e
SEE DETAIL"A"
FILLET
SECTION A -A
°
00
0
0
u i'n
00p°I
000og0
go Poo!
Q °-0
0
C
LINE OF ACTUAL
EXCAVATION
(SEE NOTE 4)
COMPACTED
CRUSHED
LIMESTONE
90° ELBOW
DETAIL "A"
0
tsHivu � 6»
cf. PLASTIC/
i I
FILLET _ /
�1 A
SECTION B-B
NEW INSIDE DROP
ON
EXISTING MANHOLE
METROPOLITAN ST. LOUIS SEWER DISTRICT
Standard Details of Sewer Construction
Dr. RGW/SAM
Ch. J.C.K.
2009
SHEET 18