HomeMy Public PortalAboutCastIronManholeCovers(LockType)NOTES:
1) USE APPROVED BUTYL RUBBER
PREFORMED MASTIC SEALANT OR
APPROVED SELF-SEALING GASKET
BETWEEN COVER AND FRAME.
2) PROVIDE 1/8" RAISED
LETTERING APPROXIMATELY
3/4" TO 1" HIGH.
B1: METRO ST. LOUIS
B2: SEWER DIST. SEWERS
3"
RECESS 5/8"
TYPICAL FOR THREE HOLES
(3) CORE HOLES ON AN 18-3/4"
DIAMETER BOLT CIRCLE FOR (3)
TYPE "N" CAM LOCKS, 120° APART.
USE 7/8"-9 x 3-1/2" N.C. 18-8
HEX HEAD STAINLESS STEEL BOLTS
AND WASHERS.
HOLES AT 120.
NOTE "B1"
TYPE "T"
TYPE "N"
NOTE "B1"
NOTE "B2"
SEE SHEET 55
FOR LOCKING DEVICE.
(2)-CONCEALED
PICKHOLES AT 180°.
SEE SHEET 56
FOR LOCKING DEVICE.
CAST IRON MANHOLE
COVERS
(LOCK TYPE)
METROPOLITAN ST. LOUIS SEWER DISTRICT
Standard Details of Sewer Construction
Dr. WSH/SAM
Ch. J.C.K.
2009
SHEET 54