HomeMy Public PortalAbout382538CLASS "A" CONCRETE. FOR PLASTIC
PIPE 8" THRU 15", USE CONCRETE
COLLARS TWO FEET LONG AND SIX
INCHES THICK EVERY TWELVE FEET
ADJACENT TO AND DOWNSTREAM
OF BELLS, WITH CLASS "C" BEDDING
PLACED BETWEEN COLLARS.
(IN LIEU OF CONCRETE CRADLE).
CLASS "A" BEDDING
NOTES:
PAYLINE WIDTH "W"
SEE TABLE NO. 1
LINE OF ACTUAL EXCAVATION.
OUTSIDE OF PIPE BELL.
OUTSIDE OF PIPE BARREL.
PAYLINE FOR CONCRETE.
\
LINE OF ACTUAL EXCAVATION.
COMPACTED CRUSHED LIME—
STONE AND SCREENINGS.
(OR SEE NOTE 1.)
PAYLINE FOR "C" EXCAVATION.
p • 0 v . • . p . 0 v p. 0. D \ 6"MIN.
p o op D D o p p
PAYLINE FOR "C"
EXCAVATION.
1) ALSO FOR PIPE SEWERS ON GRADES 20% TO 50% INCLUSIVE, BED WITH CAREFULLY PLACED & COMPACTED
SELECT EARTH BEDDING IN 6" LAYERS (90% MODIFIED PROCTOR).
2) FOR GRADES EXCEEDING 50% OR PLASTIC PIPE GREATER THAN 15" DIAMETER, SEE PROJECT SPECIFICATIONS.
CONCRETE CRADLE
METROPOLITAN ST. LOUIS SEWER DISTRICT
Standard Details of Sewer Construction
Dr. WSH/SAM 2009 SHEET 9
Ch. J.C.K.