HomeMy Public PortalAboutOutsideFoulwaterDropManholeA
B
SECTION C—C
CT
NOTES: SECTION A —A
1) THE MINIMUM INSIDE DIAMETER FOR THE BASE AND RISER SECTIONS SHALL BE 42" FOR 8" DIAMETER
SANITARY SEWERS AND A MINIMUM INSIDE DIAMETER OF 48" FOR ALL SANITARY AND COMBINED SEWERS
LARGER THAN 8" DIAMETER.
2) NEW OUTSIDE 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. A CLASS "A" CONCRETE FILLET AND INVERT SHALL BE CONSTRUCTED FOR DROP PIPE.
3) DIAMETER OF DROP PIPE FOR COMBINED SEWERS AND SANITARY SEWERS IS SAME AS INCOMING 8", 10" OR
12" PIPE SEWER UNLESS OTHERWISE SHOWN ON PROJECT PLANS. FOR SEWERS 15" THROUGH 24", A DROP IS
NOT TO BE USED. RATHER, CONNECT TO MANHOLE AT OR WITHIN 24" ABOVE IT'S FLOWLINE.
4) IF EXCAVATED SPACE OUTSIDE OF DROP PIPE EXCEEDS ONE (1) FOOT, PROVIDE 6" CLASS "A" CONCRETE
ENCASEMENT ON INCOMING LINE FROM WALL OF MANHOLE TO A MINIMUM OF TWO (2) 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 "TEE" FITTING INTO UNDISTURBED EARTH.
A
APPROVED PATENTED
COMPRESSION TYPE
JOINT FOR PRECAST
MANHOLE AND WATER
STOP FOR BRICK
MANHOLE.
REMOVABLE
WATERTIGHT
PLUG.
"FLARED -LEG BRACK-IT"
(D021 OR EQUAL) ATTACHED
WITH 3/8"x 3" STAINLESS
STEEL BOLT WITH APPROVED
ANCHOR. (NOT THRU JOINT)
LINE OF ACTUAL
EXCAVATION
SEE NOTE 4)
COMPACTED
CRUSHED LIMESTONE
6"
6" MIN.
DETAIL
5% MAX
SLOPE
12"
MAX.
3/4' STAINLESS
STEEL BAND. MIN.
3 BANDS, MAX.
3' SPACING.
"A"
FILLETMk r
=.11MILWASINAIMME
SECTION B—B
OUTSIDE FOULWATER
DROP MANHOLE
METROPOLITAN ST. LOUIS SEWER DISTRICT
Standard Details of Sewer Construction
Dr. S.A.M.
Ch. P.W.S.
2009
SHEET 16