4' - 0" X 4' - 0" X 4' - 0" Precast Concrete Manhole

Precast Concrete Manhole 4' - 0" X 4' - 0" X 4' - 0"


Screen Friendly PDF


Printer Friendly PDF


Typical Precast Concrete Manhole Installation

Precast Concrete Manhole 4' - 0" X 4' - 0" X 4' - 0"
Concrete: 5,000 psi @ 28 days
                  5% - 8% entrained air
Rebar: ASTM A-706 grade 60
Available duct entrances: a) Standard KO window
                                              b) 4" Ø duct terminator specify tele duct or sch 40
                                              c) Custom configurations and/or locations
Design criteria: a) ASTM C858
                            b) Loading per ASTM C857,

                           Including:
                           -Earth cover: Min 0' - 6" Max 5' - 0"
                           -AASHTO HS-20 wheel load & applicable impact
                           -Vertical & lateral soil pressures determined using 120 PCF 
                           soil density
                           c) Ground water at 3' - 0" below grade
                           d) Reinforcing cover per ACI 318
Weight:   Top section: 2,615#
                Base section: 3,085#
                Total manhole: 5,700#

Precast Concrete Manhole 4' - 0" X 4' - 0" X 4' - 0"

Item Description Qty.
1 1/2" Ø plastic cable rack inserts & 1/2" x 2-1/4" hex head bolts 16
4 bonding ribbon assy's including:
2 1/4" Ø x 1" inserts & hex bolts 4
1/16" x 3/8" soft tinned copper bonding ribbon 6'
5/8" cable clamps 4
3 Pulling irons: 1" Ø steel, hot dipped galvanized (provisions for two additional pulling irons) 4
4 4T lifting anchors 8
5 Sump depression w/ plastic lid 1
6 1" butyl rubber joint sealant 2 rolls
7 Rebar

Precast Concrete Manhole 4' - 0" X 4' - 0" X 4' - 0"
30" Ø Standard Manhole Frame and Cover
Screen Friendly PDF
Print Friendly PDF

Hardware
Screen Friendly PDF

Print Friendly PDF